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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2016

Commission File Number: 000-53445

KB Financial Group Inc.

(Translation of registrant’s name into English)

84, Namdaemoon-ro, Jung-gu, Seoul 100-703, Korea

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  x            Form 40-F  ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ¨

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes  ¨            No   x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- N/A .

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Audit Report of Kookmin Bank for Fiscal Year 2015

On March 10, 2016, Kookmin Bank, a wholly-owned subsidiary of KB Financial Group Inc., disclosed audit reports for fiscal year 2015 based on the International Financial Reporting Standards as adopted by the Republic of Korea (including the consolidated and separate financial statements of Kookmin Bank as of and for the years ended December 31, 2015 and 2014 and related notes) received from Samil PricewaterhouseCoopers, its independent auditor. The financial statements in such reports have not been approved by the shareholders of Kookmin Bank and remain subject to change.

KB Financial Group Inc. is furnishing the following documents as exhibits to this Form 6-K filing:

Exhibit 99.1: An English-language translation of the Consolidated Audit Report of Kookmin Bank for FY 2015.

Exhibit 99.2: An English-language translation of the Separate Audit Report of Kookmin Bank for FY 2015.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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Exhibit 99.1

Kookmin Bank and Subsidiaries

Consolidated Financial Statements

December 31, 2015 and 2014

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Kookmin Bank and Subsidiaries

Index

December 31, 2015 and 2014

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Independent Auditor’s Report

(English Translation of a Report Originally Issued in the Korean)

To the Shareholder and Board of Directors of

Kookmin Bank

We have audited the accompanying consolidated financial statements of Kookmin Bank and its subsidiaries (collectively the “Group”), which comprise the consolidated statements of financial position as of December 31, 2015 and 2014 and the consolidated statements of comprehensive income, changes in equity and cash flows for the years then ended, and notes, comprising a summary of significant accounting policies and other explanatory information.

Management’s responsibility for the financial statements

Management is responsible for the preparation and fair presentation of these financial statements in accordance with the International Financial Reporting Standards as adopted by the Republic of Korea (“Korean IFRS”) and for such internal control as management determines is necessary to enable the preparation of financial statements that are free from material misstatement, whether due to fraud or error.

Auditor’s responsibility

Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with the Korean Standards on Auditing. Those standards require that we comply with ethical requirements and plan and perform the audit to obtain reasonable assurance about whether the financial statements are free from material misstatement.

An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the financial statements. The procedures selected depend on the auditor’s judgment, including the assessment of the risks of material misstatement of the financial statements, whether due to fraud or error. In making those risk assessments, the auditor considers internal control relevant to the entity’s preparation and fair presentation of the financial statements in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the entity’s internal control. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of accounting estimates made by management, as well as evaluating the overall presentation of the financial statements.

We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion.

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Opinion

In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Group as of December 31, 2015 and 2014, and its financial performance and cash flows for the years then ended in accordance with Korean IFRS.

Other Matter

Auditing standards and their application in practice vary among countries. The procedures and practices used in the Republic of Korea to audit such financial statements may differ from those generally accepted and applied in other countries.

Seoul, Korea

March 9, 2016

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Kookmin Bank and Subsidiaries

Consolidated Statements of Financial Position

December 31, 2015 and 2014

The accompanying notes are an integral part of these consolidated financial statements.

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Kookmin Bank and Subsidiaries

Consolidated Statements of Comprehensive Income

Years ended December 31, 2015 and 2014

The accompanying notes are an integral part of these consolidated financial statements.

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Kookmin Bank and Subsidiaries

Consolidated Statements of Changes in Equity

Years Ended December 31, 2015 and 2014

The accompanying notes are an integral part of these consolidated financial statements.

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Kookmin Bank and Subsidiaries

Consolidated Statements of Cash Flows

Years ended December 31, 2015 and 2014

The accompanying notes are an integral part of these consolidated financial statements.

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Kookmin Bank and Subsidiaries

Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Kookmin Bank (the “Bank”) was incorporated in 1963 under the Citizens National Bank Act to provide banking services to the general public and to small and medium-sized enterprises. Pursuant to the Repeal Act of the Citizens National Bank Act, effective January 5, 1995, the Bank’s status changed to a financial institution which operates under the Banking Act and Commercial Act.

The Bank merged with Korea Long Term Credit Bank on December 31, 1998, and with its subsidiaries, Daegu, Busan, Jeonnam Kookmin Mutual Savings & Finance Co., Ltd., on August 22, 1999. Pursuant to the directive from the Financial Services Commission related to the Structural Improvement of the Financial Industry Act, the Bank acquired certain assets, including performing loans, and assumed most of the liabilities of Daedong Bank on June 29, 1998. Also, the Bank completed the merger with Housing and Commercial Bank (“H&CB”) on October 31, 2001, and merged with Kookmin Credit Card Co., Ltd., a majority-owned subsidiary, on September 30, 2003. Meanwhile, the Bank spun off its credit card business segment on February 28, 2011, and KB Kookmin Card Co., Ltd. became a subsidiary of KB Financial Group Inc.

The Bank listed its shares on the Stock Market Division of the Korea Exchange (“KRX,” formerly Korea Stock Exchange) in September 1994. As a result of the merger with H&CB, the shareholders of the former Kookmin Bank and H&CB received new common shares of the Bank which were relisted on the KRX on November 9, 2001. In addition, H&CB listed its American Depositary Shares (“ADS”) on the New York Stock Exchange (“NYSE”) on October 3, 2000, prior to the merger. Following the merger with H&CB, the Bank listed its ADS on the NYSE on November 1, 2001. The Bank became a wholly owned subsidiary of KB Financial Group Inc. through a comprehensive stock transfer on September 29, 2008. Subsequently, the Bank’s shares and its ADS, each listed on the KRX and the NYSE, were delisted on October 10, 2008 and September 26, 2008, respectively. As of December 31, 2015, the Bank’s paid-in capital is ￦2,021,896 million.

The Bank engages in the banking business in accordance with the Banking Act, trust business in accordance with the Financial Investment Services and Capital Markets Act, and other relevant businesses. As of December 31, 2015, the Bank operates 1,138 domestic branches and offices, and five overseas branches (excluding four subsidiaries and three offices).

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Kookmin Bank and Subsidiaries

Notes to Consolidated Financial Statements

December 31, 2015 and 2014

2.1 Application of Korean IFRS

The consolidated financial statements of the Bank and its subsidiaries (collectively the “Group”) have been prepared in accordance with Korean IFRS. These are the standards and related interpretations issued by the International Accounting Standards Board (“IASB”) that have been adopted by the Republic of Korea.

The Group maintains its accounting records in Korean won and prepares statutory financial statements in the Korean language (Hangul) in accordance with Korean IFRS. The accompanying consolidated financial statements have been condensed, restructured and translated into English from the Korean language financial statements.

Certain information attached to the Korean language financial statements, but not required for a fair presentation of the Group’s financial position, financial performance or cash flows, is not presented in the accompanying consolidated financial statements.

The preparation of consolidated financial statements requires the use of certain critical accounting estimates. It also requires management to exercise judgment in the process of applying the Group’s accounting policies. The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are disclosed in Note 2.4.

The Group newly applied the following new and amended standards and interpretations for the annual period beginning on January 1, 2015, and these applications do not have a material impact on the consolidated financial statements.

Amendments to standards issued but not effective for the financial year beginning January 1, 2015, and not early adopted are enumerated below. The Group expects that these standards and amendments would not have a material impact on its consolidated financial statements.

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Kookmin Bank and Subsidiaries

Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Also, new standards and interpretations issued but not effective for the financial year beginning January 1, 2015, and not early adopted are as follows:

This new standard issued in December 2015 regarding financial instruments replaces Korean IFRS 1039, Financial Instruments: Recognition and Measurement.

Korean IFRS 1109, Financial Instruments, requires financial assets to be classified and measured on the basis of the holder’s business model and the instrument’s contractual cash flow characteristics. The standard requires a financial instrument to be classified and measured at amortized cost, fair value through other comprehensive income, or fair value through profit or loss, and provides guidance on accounting for related gains and losses. The impairment model is changed into an expected credit loss model, and changes in those expected credit losses are recognized in profit or loss. This amendment has been partially reflected, which is consistent with the risk management of companies for hedge accounting. The new standard is effective for the financial year initially beginning on or after January 1, 2018, but early adoption is allowed. Early adoption of only the requirements related to financial liabilities designated at fair value through profit or loss is also permitted. The Group is in the process of evaluating the effects resulting from the adoption of the new standard.

This new standard for the recognition of revenue issued in December 2015 will replace Korean IFRS1018, Revenue, Korean IFRS 1011, Construction Contracts, and related Interpretations. Korean IFRS 1115, Revenue from Contracts with Customers, will replace the risk-and-reward model under the current standards and is based on the principle that revenue is recognized when control of goods or services transfer to the customer by applying the five-step process. Key changes to current practices include guidance on separate recognition of distinct goods or services in any bundled arrangement, constraint on recognizing variable consideration, criteria on recognizing revenue over time, and increased disclosures. The new standard is effective for annual reporting beginning on or after January 1, 2018, but early application is permitted. The Group is in the process of evaluating the effects resulting from the adoption of the new Standard.

2.2 Measurement Basis

The consolidated financial statements have been prepared under the historical cost convention unless otherwise specified.

2.3 Functional and Presentation Currency

Items included in the financial statements of each of the Group’s entities are measured using the currency of the primary economic environment in which the entity operates (“the functional currency”). The consolidated financial statements are presented in Korean won, which is the parent company’s functional and presentation currency. Refer to Notes 3.2.1 and 3.2.2.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

2.4 Significant Estimates

The preparation of consolidated financial statements requires the application of accounting policies, certain critical accounting estimates and assumptions that may have a significant impact on the assets (liabilities) and incomes (expenses). Management’s estimates of outcomes may differ from actual outcomes if management’s estimates and assumptions based on management’s best judgment at the reporting date are different from the actual environment.

Estimates and assumptions are continually evaluated and any change in an accounting estimate is recognized prospectively by including it in profit or loss in the period of the change, if the change affects that period only. Alternatively if the change in accounting estimate affects both the period of change and future periods, that change is recognized in the profit or loss of all those periods.

Uncertainty in estimates and assumptions with significant risk that may result in material adjustment to the consolidated financial statements are as follows:

2.4.1 Income taxes

The Group is operating in numerous countries and the income generated from these operations is subject to income taxes based on tax laws and interpretations of tax authorities in numerous jurisdictions. There are many transactions and calculations for which the ultimate tax determination is uncertain.

If certain portion of the taxable income is not used for investments, increase in wages, or dividends in accordance with the Tax System For Recirculation of Corporate Income, the Group is liable to pay additional income tax calculated based on the tax laws. The new tax system is effective for three years from 2015. Accordingly, the measurement of current and deferred income tax is affected by the tax effects from the new system. As the Group’s income tax is dependent on the investments, increase in wages and dividends, there exists uncertainty with regard to measuring the final tax effects.

2.4.2 Fair value of financial instruments

The fair value of financial instruments that are not traded in an active market is determined by using valuation techniques. The Group uses its judgment to select a variety of methods and make assumptions that are mainly based on market conditions existing at the end of each reporting period. Refer to Note 6 for details on valuation techniques and inputs used to determine the fair value of financial instruments.

2.4.3 Provisions for credit losses (allowances for loan losses, provisions for acceptances and guarantees, and unused loan commitments)

The Group determines and recognizes allowances for losses on loans through impairment testing and recognizes provisions for guarantees, and unused loan commitments. The accuracy of provisions for credit losses is determined by the methodology and assumptions used for estimating expected cash flows of the borrower for individually assessed allowances of loans, collectively assessed allowances for groups of loans, guarantees and unused loan commitments.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

2.4.4 Net defined benefit liability

The present value of net defined benefit liability depends on a number of factors that are determined on an actuarial basis using a number of assumptions (Note 23).

2.4.5 Estimated impairment of goodwill

The Group tests annually whether goodwill has suffered any impairment. The recoverable amounts of cash-generating units have been determined based on value-in-use calculations (Note 15).

The significant accounting policies applied in the preparation of these consolidated financial statements are set out below. These policies have been consistently applied to all periods presented, unless otherwise stated.

3.1 Consolidation

3.1.1 Subsidiaries

Subsidiaries are companies that are controlled by the Group. The Group controls an investee when it is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. The existence and effects of potential voting rights that are currently exercisable or convertible are considered when assessing whether the Group controls another entity. Subsidiaries are fully consolidated from the date when control is transferred to the Group and de-consolidated from the date when control is lost.

If a subsidiary uses accounting policies other than those adopted in the consolidated financial statements for like transactions and events in similar circumstances, appropriate adjustments are made to make the subsidiary’s accounting policies conform to those of the Group when the subsidiary’s financial statements are used by the Group in preparing the consolidated financial statements.

Profit or loss and each component of other comprehensive income are attributed to the owners of the parent and to the non-controlling interests, if any. Total comprehensive income is attributed to the owners of the parent and to the non-controlling interests even if this results in the non-controlling interests having a deficit balance.

Transactions with non-controlling interests that do not result in loss of control are accounted for as equity transactions; that is, as transactions with the owners in their capacity as owners. The difference between fair value of any consideration paid and the relevant share acquired of the carrying value of net assets of the subsidiary is recorded in equity. Gains or losses on disposals to non-controlling interests are also recorded in equity.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

When the Group ceases to have control, any retained interest in the entity is re-measured to its fair value at the date when control is lost, with the change in carrying amount recognized in profit or loss. The fair value is the initial carrying amount for the purposes of subsequently accounting for the retained interest as an associate, joint venture or financial asset. In addition, any amounts previously recognized in other comprehensive income in respect of that entity are accounted for as if the Group had directly disposed of the related assets or liabilities. This may mean that amounts previously recognized in other comprehensive income are reclassified to profit or loss.

3.1.2 Associates

Associates are entities over which the Group has significant influence in the financial and operating policy decisions. If the Group holds 20% or more of the voting power of the investee, it is presumed that the Group has significant influence.

Under the equity method, investments in associates are initially recognized at cost and the carrying amount is increased or decreased to recognize the Group’s share of the profit or loss of the investee and changes in the investee’s equity after the date of acquisition. The Group’s share of the profit or loss of the investee is recognized in the Group’s profit or loss. Distributions received from an investee reduce the carrying amount of the investment. Profit and loss resulting from ‘upstream’ and ‘downstream’ transactions between the Group and associates are eliminated to the extent at the Group’s interest in associates. Unrealized losses are eliminated in the same way as unrealized gains except that they are only eliminated to the extent that there is no evidence of impairment.

If associates use accounting policies other than those adopted in the consolidated financial statements for like transactions and events in similar circumstances, appropriate adjustments are made to make the associate’s accounting policies conform to those of the Group when the associate’s financial statements are used by the Group in applying equity method.

After the carrying amount of the investment is reduced to zero, additional losses are provided for, and a liability is recognized, only to the extent that the Group has incurred legal or constructive obligations or made payments on behalf of the investee.

The Group determines at each reporting date whether there is any objective evidence that the investments in the associates are impaired. If this is the case, the Group calculates the amount of impairment as the difference between the recoverable amount of the associates and its carrying value and recognizes the amount as ‘share of profit or loss of associates’ in the statement of comprehensive income.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

3.1.3 Structured entity

A structured entity is an entity that has been designed so that voting or similar rights are not the dominant factor in deciding who controls the entity. When the Group decides whether it has power to the structured entities in which the Group has interests, it considers factors such as the purpose, the form, the practical ability to direct the relevant activities of a structured entity, the nature of its relationship with a structured entity and the amount of exposure to variable returns.

3.1.4 Trusts and funds

The Group provides management services for trust assets, collective investment and other funds. These trusts and funds are not consolidated in the Group’s consolidated financial statements, except for trusts and funds over which the Group has control.

3.1.5 Intra-group transactions

All intra-group balances and transactions, and any unrealized gains arising on intra-group transactions, are eliminated in preparing the consolidated financial statements. Unrealized losses are eliminated in the same way as unrealized gains except that they are only eliminated to the extent that there is no evidence of impairment.

3.2 Foreign Currency

3.2.1 Foreign currency transactions and balances

A foreign currency transaction is recorded, on initial recognition in the functional currency, by applying the spot exchange rate between the functional currency and the foreign currency at the date of the transaction. At the end of each reporting period, foreign currency monetary items are translated using the closing rate which is the spot exchange rate at the end of the reporting period. Non-monetary items that are measured at fair value in a foreign currency are translated using the spot exchange rates at the date when the fair value was determined and non-monetary items that are measured in terms of historical cost in a foreign currency are translated using the spot exchange rate at the date of the transaction. Exchange differences arising on the settlement of monetary items or on translating monetary items at rates different from those at which they were translated on initial recognition during the period or in previous consolidated financial statements are recognized in profit or loss in the period in which they arise, except for exchange differences arising on net investments in a foreign operation and financial liability designated as a hedge of the net investment. When gains or losses on a non-monetary item are recognized in other comprehensive income, any exchange component of those gains or losses are also recognized in other comprehensive income. Conversely, when gains or losses on a non-monetary item are recognized in profit or loss, any exchange component of those gains or losses are also recognized in profit or loss.

3.2.2 Foreign operations

The financial performance and financial position of all foreign operations, whose functional currencies differ from the Group’s presentation currency, are translated into the Group’s presentation currency using the following procedures:

Assets and liabilities for each statement of financial position presented are translated at the closing rate at the end of the reporting period. Income and expenses in the statement of comprehensive income presented are translated at average exchange rates for the period. All resulting exchange differences are recognized in other comprehensive income.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Any goodwill arising from the acquisition of a foreign operation and any fair value adjustments to the carrying amounts of assets and liabilities arising from the acquisition of that foreign operation are treated as assets and liabilities of the foreign operation. Thus, they are expressed in the functional currency of the foreign operation and are translated into the presentation currency at the closing rate.

On the disposal of a foreign operation, the cumulative amount of the exchange differences relating to that foreign operation, recognized in other comprehensive income and accumulated in the separate component of equity, is reclassified from equity to profit or loss (as a reclassification adjustment) when the gains or losses on disposal are recognized. On the partial disposal of a subsidiary that includes a foreign operation, the Group re-attributes the proportionate share of the cumulative amount of the exchange differences recognized in other comprehensive income to the non-controlling interests in that foreign operation. In any other partial disposal of a foreign operation, the Group reclassifies to profit or loss only the proportionate share of the cumulative amount of the exchange differences recognized in other comprehensive income.

3.3 Recognition and Measurement of Financial Instruments

3.3.1 Initial recognition

The Group recognizes a financial asset or a financial liability in its statement of financial position when the Group becomes a party to the contractual provisions of the instrument. A regular way purchase or sale of financial assets (a purchase or sale of a financial asset under a contract whose terms require delivery of the financial instruments within the time frame established generally by market regulation or practice) is recognized and derecognized using trade date accounting.

The Group classifies financial assets as financial assets at fair value through profit or loss, held-to-maturity financial assets, available-for-sale financial assets, or loans and receivables, or other financial assets. The Group classifies financial liabilities as financial liabilities at fair value through profit or loss, or other financial liabilities. The classification depends on the nature and holding purpose of the financial instrument at initial recognition in the consolidated financial statements.

At initial recognition, a financial asset or financial liability is measured at its fair value plus or minus, in the case of a financial asset or financial liability not at fair value through profit or loss, transaction costs that are directly attributable to the acquisition or issue of the financial asset or financial liability. The fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The fair value of a financial instrument on initial recognition is normally the transaction price (that is, the fair value of the consideration given or received) in an arm’s length transaction.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

3.3.2 Subsequent measurement

After initial recognition, financial instruments are measured at amortized cost or fair value based on classification at initial recognition.

Amortized cost

The amortized cost of a financial asset or financial liability is the amount at which the financial asset or financial liability is measured at initial recognition and adjusted to reflect principal repayments, cumulative amortization using the effective interest method and any reduction (directly or through the use of an allowance account) for impairment or uncollectibility.

Fair value

Fair values, which the Group primarily uses for the measurement of financial instruments, are the published price quotations based on market prices or dealer price quotations of financial instruments traded in an active market where available. These are the best evidence of fair value. A financial instrument is regarded as quoted in an active market if quoted prices are readily and regularly available from an exchange, dealer, broker, an entity in the same industry, pricing service or regulatory agency, and those prices represent actual and regularly occurring market transactions on an arm’s length basis.

If the market for a financial instrument is not active, fair value is determined either by using a valuation technique or independent third-party valuation service. Valuation techniques include using recent arm’s length market transactions between knowledgeable, willing parties, if available, referencing to the current fair value of another instrument that is substantially the same, discounted cash flow analysis and option pricing models.

The Group uses valuation models that are commonly used by market participants and customized for the Group to determine fair values of common over-the-counter (OTC) derivatives such as options, interest rate swaps and currency swaps which are based on the inputs observable in markets. For more complex instruments, the Group uses internally developed models, which are usually based on valuation methods and techniques generally used within the industry, or a value measured by an independent external valuation institution as the fair values if all or some of the inputs to the valuation models are not market observable and therefore it is necessary to estimate fair value based on certain assumptions.

The Group’s Fair Value Evaluation Committee, which consists of the risk management department, trading department and accounting department, reviews the appropriateness of internally developed valuation models, and approves the selection and changing of the external valuation institution and other considerations related to fair value measurement. The review results on the fair valuation models are reported to the Market Risk Management subcommittee by the Fair Value Evaluation Committee on a regular basis.

If the valuation technique does not reflect all factors which market participants would consider in setting a price, the fair value is adjusted to reflect those factors. Those factors include counterparty credit risk, bid-ask spread, liquidity risk and others.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

The chosen valuation technique makes maximum use of market inputs and relies as little as possible on entity-specific inputs. It incorporates all factors that market participants would consider in setting a price and is consistent with economic methodologies applied for pricing financial instruments. Periodically, the Group calibrates the valuation technique and tests its validity using prices of observable current market transactions of the same instrument or based on other relevant observable market data.

3.3.3 Derecognition

Derecognition is the removal of a previously recognized financial asset or financial liability from the statement of financial position. The Group derecognizes a financial asset or a financial liability when, and only when:

Derecognition of financial assets

Financial assets are derecognized when the contractual rights to the cash flows from the financial assets expire or the financial assets have been transferred and substantially all the risks and rewards of ownership of the financial assets are also transferred, or all the risks and rewards of ownership of the financial assets are neither substantially transferred nor retained and the Group has not retained control. If the Group neither transfers nor disposes of substantially all the risks and rewards of ownership of the financial assets, the Group continues to recognize the financial asset to the extent of its continuing involvement in the financial asset.

If the Group transfers the contractual rights to receive the cash flows of the financial asset, but retains substantially all the risks and rewards of ownership of the financial asset, the Group continues to recognize the transferred asset in its entirely and recognize a financial liability for the consideration received.

Derecognition of financial liabilities

Financial liabilities are derecognized from the statement of financial position when the obligation specified in the contract is discharged, cancelled or expires.

3.3.4 Offsetting

A financial asset and a financial liability are offset and the net amount presented in the statement of financial position when, and only when, the Group currently has a legally enforceable right to offset the recognized amounts and intends either to settle on a net basis, or to realize the asset and settle the liability simultaneously.

3.4 Cash and Cash Equivalents

Cash and cash equivalents include cash on hand, foreign currency, and short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

3.5 Non-derivative Financial Assets

3.5.1 Financial assets at fair value through profit or loss

This category comprises two sub-categories: financial assets classified as held for trading, and financial assets designated by the Group as at fair value through profit or loss upon initial recognition.

A non-derivative financial asset is classified as held for trading if either:

The Group may designate certain financial assets, other than held for trading, upon initial recognition as at fair value through profit or loss when one of the following conditions is met:

The Group did not separate an embedded derivative from its host contract of derivative linked securities but designated the entire hybrid contract as at fair value through profit of loss.

After initial recognition, a financial asset at fair value through profit or loss is measured at fair value and gains or losses arising from a change in the fair value are recognized in profit or loss. Interest income, dividend income, and gains or losses from sale and repayment from financial assets at fair value through profit or loss are recognized in the statement of comprehensive income as net gains on financial instruments at fair value through profit or loss.

3.5.2 Financial Investments

Available-for-sale and held-to-maturity financial assets are presented as financial investments.

Available-for-sale financial assets

Profit or loss of financial assets classified as available for sale, except for impairment loss and foreign exchange gains and losses resulting from changes in amortized cost of debt securities, is recognized as other comprehensive income, and cumulative profit or loss is reclassified from equity to current profit or loss at the derecognition of the financial asset, and it is recognized as part of other operating profit or loss in the statement of comprehensive income.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

However, interest income measured using the effective interest method is recognized in current profit or loss, and dividends of financial assets classified as available-for-sale are recognized when the right to receive payment is established.

Available-for-sale financial assets denominated in foreign currencies are translated at the closing rate. For available-for-sale debt securities denominated in foreign currency, exchange differences resulting from changes in amortized cost are recognized in profit or loss as part of other operating income and expenses. For available-for-sale equity securities denominated in foreign currency, the entire change in fair value including any exchange component is recognized in other comprehensive income.

Held-to-maturity financial assets

Held-to-maturity financial assets are non-derivative financial assets with fixed or determinable payments and fixed maturity that the Group’s management has the positive intention and ability to hold to maturity. Held-to-maturity financial assets are subsequently measured at amortized cost using the effective interest method after initial recognition and interest income is recognized using the effective interest method.

3.5.3 Loans and receivables

Non-derivative financial assets which meet the following conditions are classified as loans and receivables:

After initial recognition, these are subsequently measured at amortized cost using the effective interest method.

If the financial asset is purchased under an agreement to resale the asset at a fixed price or at a price that provides a lender’s return on the purchase price, the consideration paid is recognized as loans and receivables.

3.6 Impairment of Financial Assets

The Group assesses at the end of each reporting period whether there is any objective evidence that a financial asset or group of financial assets except for financial assets at fair value through profit or loss is impaired. A financial asset or a group of financial assets is impaired and impairment losses are incurred, if and only if, there is objective evidence of impairment as a result of one or more events that occurred after the initial recognition of the asset (a ‘loss event’) and that loss event (or events) has an impact on the estimated future cash flows of the financial asset or group of financial assets that can be reliably estimated. However, losses expected as a result of future events, no matter how likely, are not recognized.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Objective evidence that a financial asset or group of assets is impaired includes observable data that comes to the attention of the holder of the asset about the following loss events:

In addition to the types of events in the preceding paragraphs, objective evidence of impairment for an investment in an equity instrument classified as an available-for-sale financial asset includes a significant or prolonged decline in the fair value below its cost. The Group considers the decline in the fair value of over 30% against the original cost as a “significant decline”. A decline is considered as prolonged if the period, in which the fair value of the financial asset has been below its original cost at initial recognition, is same as or more than six months.

If there is objective evidence that an impairment loss has been incurred, the amount of the loss is measured and recognized in profit or loss as either provisions for credit loss or other operating income and expenses.

3.6.1 Loans and receivables

If there is objective evidence that an impairment loss on loans and receivables carried at amortized cost has been incurred, the amount of the loss is measured as the difference between the asset’s carrying amount and the present value of estimated future cash flows (excluding future credit losses that have not been incurred) discounted at the financial asset’s original effective interest rate.

The Group first assesses whether objective evidence of impairment exists individually for financial assets that are individually significant (individual assessment of impairment), and individually or collectively for financial assets that are not individually significant. If the Group determines that no objective evidence of impairment exists for an individually assessed financial asset, whether significant or not, it includes the asset in a group of financial assets with similar credit risk characteristics and collectively assesses them for impairment (collective assessment of impairment).

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Individual assessment of impairment

Individual assessment of impairment losses are calculated by discounting the expected future cash flows of a loan at its original effective interest rate and comparing the resultant present value with the loan’s current carrying amount. This process normally encompasses management’s best estimate, such as operating cash flow of the borrower and net realizable value of any collateral held.

Collective assessment of impairment

A methodology based on historical loss experience is used to estimate inherent incurred loss on groups of assets for collective assessment of impairment. Such methodology incorporates factors such as type of collateral, product and borrowers, credit rating, loss emergence period, recovery period and applies probability of default on a group of assets and loss given default by type of recovery method. Also, consistent assumptions are applied to form a formula-based model in estimating inherent loss and to determine factors on the basis of historical loss experience and current condition. The methodology and assumptions used for collective assessment of impairment are reviewed regularly to reduce any differences between loss estimates and actual loss experience.

Impairment loss on loans reduces the carrying amount of the asset through use of an allowance account, and when a loan becomes uncollectable, it is written off against the related allowance account. If, in a subsequent period, the amount of the impairment loss decreases and is objectively related to the subsequent event after recognition of impairment, the previously recognized impairment loss is reversed by adjusting the allowance account. The amount of the reversal is recognized in profit or loss.

3.6.2 Available-for-sale financial assets

When a decline in the fair value of an available-for-sale financial asset has been recognized in other comprehensive income and there is objective evidence that the asset is impaired, the cumulative loss (the difference between the acquisition cost and current fair value, less any impairment loss on that financial asset previously recognized in profit or loss) that had been recognized in other comprehensive income is reclassified from equity to profit or loss as part of other operating income and expenses.

If, in a subsequent period, the fair value of a debt instrument classified as available-for-sale increases and the increase can be objectively related to an event occurring after the impairment loss was recognized in profit or loss, a portion of the impairment loss is reversed up to but not exceeding the previously recorded impairment loss, with the amount of the reversal recognized in profit or loss as part of other operating income and expenses in the statement of comprehensive income. However, impairment losses recognized in profit or loss for an available-for-sale equity instrument classified as available for sale are not reversed through profit or loss.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

3.6.3 Held-to-maturity financial assets

If there is objective evidence that an impairment loss on held-to-maturity financial assets carried at amortized cost has been incurred, the amount of the loss is measured as the difference between the asset’s carrying amount and the present value of estimated future cash flows discounted at the financial asset’s original effective interest rate. The amount of the loss is recognized in profit or loss as part of other operating income and expenses. The impairment loss on held-to-maturity financial assets is directly deducted from the carrying amount.

In the case of a financial asset classified as held to maturity, if, in a subsequent period, the amount of the impairment loss decreases and it is objectively related to an event occurring after the impairment is recognized, a portion of the previously recognized impairment loss is reversed up to but not exceeding the extent of amortized cost at the date of recovery. The amount of reversal is recognized in profit or loss as part of other operating income and expenses in the statement of comprehensive income.

3.7 Derivative Financial Instruments

The Group enters into numerous derivative financial instrument contracts such as currency forwards, interest rate swaps, currency swaps and others for trading purposes or to manage its exposures to fluctuations in interest rates and currency exchange, amongst others. These derivative financial instruments are presented as derivative financial instruments within the consolidated financial statements irrespective of transaction purpose and subsequent measurement requirement.

The Group designates certain derivatives as hedging instruments to hedge the risk of changes in fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge). The Group designates non-derivatives as hedging instruments to hedge the risk of foreign exchange of a net investment in a foreign operation (hedge of net investment).

At the inception of the hedge, there is formal designation and documentation of the hedging relationship and the Group’s risk management objective and strategy for undertaking the hedge. That documentation includes identification of the hedging instrument, the hedged item or transaction, the nature of the risk being hedged and how the entity will assess the hedging instrument’s effectiveness in offsetting the exposure to changes in the hedged item’s fair value attributable to the hedged risk.

3.7.1 Derivative financial instruments held for trading

All derivative financial instruments, except for derivatives that are designated and qualify for hedge accounting, are measured at fair value. Gains or losses arising from a change in fair value are recognized in profit or loss as part of net gains or losses on financial instruments at fair value through profit or loss.

3.7.2 Fair value hedges

If derivatives qualify for a fair value hedge, the change in fair value of the hedging instrument and the change in fair value of the hedged item attributable to the hedged risk are recognized in profit or loss as part of other operating income and expenses. Fair value hedge accounting is discontinued prospectively if the hedging instrument expires or is sold, terminated or exercised, or the hedge no longer meets the criteria for hedge accounting or the Group revokes the designation. Once fair value hedge accounting is discontinued, the adjustment to the carrying amount of a hedged item is fully amortized to profit or loss by the maturity of the financial instrument using the effective interest method.

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December 31, 2015 and 2014

3.7.3 Hedge of net investment

If financial liabilities qualify for a net investment hedge, the effective portion of changes in fair value of hedging instrument is recognized in other comprehensive income or loss and the ineffective portion is recognized in profit or loss. The gain or loss on the hedging instrument relating to the effective portion of the hedge that has been recognized in other comprehensive income will be reclassified from other comprehensive income or loss to profit or loss as a reclassification adjustment on the disposal or partial disposal of the foreign operation in accordance with Korean IFRS 1039, Financial Instruments: Recognition and Measurement.

3.7.4 Embedded derivatives

An embedded derivative is separated from the host contract and accounted for as a derivative if, and only if, the economic characteristics and risks of the embedded derivative are not closely related to those of the host contract and a separate instrument with the same terms as the embedded derivative would meet the definition of a derivative and the hybrid (combined) instrument is not measured at fair value with changes in fair value recognized in profit or loss. Gains or losses arising from a change in the fair value of an embedded derivative separated from the host contract are recognized in profit or loss as part of net gains or losses on financial instruments at fair value through profit or loss.

3.7.5 Day one gain and loss

If the Group uses a valuation technique that incorporates data not obtained from observable markets for the fair value at initial recognition of the financial instrument, there may be a difference between the transaction price and the amount determined using that valuation technique. In these circumstances, the difference is deferred and not recognized in profit or loss, and is amortized by using the straight-line method over the life of the financial instrument. If the fair value of the financial instrument is subsequently determined using observable market inputs, the remaining deferred amount is recognized in profit or loss as part of net gains or losses on financial instruments at fair value through profit or loss or other operating income and expenses.

3.8 Property and Equipment

3.8.1 Recognition and measurement

All property and equipment that qualify for recognition as an asset are measured at cost and subsequently carried at cost less any accumulated depreciation and any accumulated impairment losses.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

The cost of property and equipment includes any costs directly attributable to bringing the asset to the location and condition necessary for it to be capable of operating in the manner intended by management and the initial estimate of the costs of dismantling and removing the item and restoring the site on which it is located.

Subsequent expenditures are capitalized only when they prolong the useful life or enhance values of the assets but the costs of the day-to-day servicing of the assets such as repair and maintenance costs are recognized in profit or loss as incurred.

3.8.2 Depreciation

Land is not depreciated whereas other property and equipment are depreciated using the method that reflects the pattern in which the asset’s future economic benefits are expected to be consumed by the Group. The depreciable amount of an asset is determined after deducting its residual value. As for leased assets, if there is no reasonable certainty that the Group will obtain ownership by the end of the lease term, the asset is fully depreciated over the shorter of the lease term and its useful life.

The depreciation methods and estimated useful lives of the assets are as follows:

The residual value, the useful life and the depreciation method applied to an asset are reviewed at least at each financial year end and, if expectations differ from previous estimates or if there has been a significant change in the expected pattern of consumption of the future economic benefits embodied in the asset, the changes are accounted for as a change in an accounting estimate.

3.9 Investment Properties

3.9.1 Recognition and Measurement

Properties held to earn rentals or for capital appreciation or both are classified as investment properties. Investment properties are measured initially at their cost and subsequently the cost model is used.

3.9.2 Depreciation

Land is not depreciated, whereas other investment properties are depreciated using the method that reflects the pattern in which the asset’s future economic benefits are expected to be consumed by the Group. The depreciable amount of an asset is determined after deducting its residual value.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

The depreciation method and estimated useful lives of the assets are as follows:

The residual value, the useful life and the depreciation method applied to an asset are reviewed at least at each financial year end and, if expectations differ from previous estimates or if there has been a significant change in the expected pattern of consumption of the future economic benefits embodied in the asset, the changes are accounted for as a change in an accounting estimate.

3.10 Intangible Assets

Intangible assets are measured initially at cost and subsequently carried at their cost less any accumulated amortization and any accumulated impairment losses.

Intangible assets, except for goodwill and membership rights, are amortized using the straight-line method with no residual value over their estimated useful economic life since the asset is available for use.

The amortization period and the amortization method for intangible assets with a finite useful life are reviewed at least at each financial year end. Where an intangible asset is not being amortized, because its useful life is considered to be indefinite, the Group carries out a review in each accounting period to confirm whether or not events and circumstances still support the assumption of an indefinite useful life. If they do not, the change from the indefinite to finite useful life is accounted for as a change in an accounting estimate.

3.10.1 Goodwill

Recognition and measurement

Goodwill acquired from business combinations before January 1, 2010, is stated at its carrying amount which was recognized under the Group’s previous accounting policy, prior to the transition to Korean IFRS.

Goodwill acquired from business combinations after January 1, 2010, is initially measured as the excess of the aggregate of the consideration transferred, fair value of non-controlling interest and the acquisition-date fair value of the acquirer’s previously held equity interest in the acquiree over the net identifiable assets acquired and liabilities assumed. If this consideration is lower than the fair value of the net assets of the business acquired, the difference is recognized in profit or loss.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

For each business combination, the Group decides whether the non-controlling interest in the acquiree is initially measured at fair value or at the non-controlling interest’s proportionate share of the acquiree’s identifiable net assets at the acquisition date.

Acquisition-related costs incurred to effect a business combination are charged to expenses in the periods in which the costs are incurred and the services are received, except for the costs to issue debt or equity securities.

Additional acquisitions of non-controlling interest

Additional acquisitions of non-controlling interests are accounted for as equity transactions. Therefore, no additional goodwill is recognized.

Subsequent measurement

Goodwill is not amortized and is stated at cost less accumulated impairment losses. However, goodwill that forms part of the carrying amount of an investment in associates is not separately recognized and an impairment loss recognized is not allocated to any asset, including goodwill, which forms part of the carrying amount of the investment in the associates.

3.10.2 Subsequent expenditure

Subsequent expenditure is capitalized only when it enhances values of the assets. Internally generated intangible assets, such as goodwill and trade name, are not recognized as assets but expensed as incurred.

3.11 Leases

3.11.1 Finance lease

A lease is classified as a finance lease if it transfers substantially all the risks and rewards incidental to ownership. At the commencement of the lease term, the Group recognizes finance leases as assets and liabilities in its statements of financial position at amounts equal to the fair value of the leased property or, if lower, the present value of the minimum lease payments, each determined at the inception of the lease. Any initial direct costs of the lessee are added to the amount recognized as an asset.

Minimum lease payments are apportioned between the finance charge and the reduction of the outstanding liability. The finance charge is allocated to each period during the lease term so as to produce a constant periodic rate of interest on the remaining balance of the liability. Contingent rents are charged as expenses in the periods in which they are incurred.

The depreciable amount of a leased asset is allocated to each accounting period during the period of expected use on a systematic basis consistent with the depreciation policy the Group adopts for depreciable assets that are owned. If there is reasonable certainty that the lessee will obtain ownership by the end of the lease term, the period of expected use is the useful life of the asset; otherwise, the asset is fully depreciated over the shorter of the lease term and its useful life.

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December 31, 2015 and 2014

3.11.2 Operating lease

A lease is classified as an operating lease if it does not transfer substantially all the risks and rewards incidental to ownership.

Leases in the financial statements of lessees

Lease payments under an operating lease (net of any incentives received from the lessor) are recognized as an expense on a straight-line basis over the lease term unless another systematic basis is more representative of the time pattern of the asset’s benefit.

Leases in the financial statements of lessors

Lease income from operating leases are recognized in income on a straight-line basis over the lease term unless another systematic basis is more representative of the time pattern in which use benefit derived from the leased asset is diminished. Initial direct costs incurred by the lessors in negotiating and arranging an operating lease are added to the carrying amount of the leased asset and recognized as an expense over the lease term on the same basis as the lease income.

3.12 Greenhouse Gas Emission Rights and Liabilities

The Group measured at zero the emission rights received free of charge from the government following the Enforcement of Allocation and Trading of Greenhouse Gas Emissions Allowances. Emission rights purchased are measured initially at cost and subsequently carried at their costs less any accumulated impairment losses. Emission liabilities are measured as the sum of the carrying amount of emission allowances held by the Group and best estimate of the expenditure required to settle the obligation for any excess emissions at the end of reporting period. The emission rights and liabilities are classified as ‘intangible assets’ and ‘provisions’, respectively, in the consolidated statement of financial position.

The emission rights held for trading are measured at fair value and the changes in fair value are recognized in profit or loss. The changes in fair value and gain or loss on disposal are classified as non-operating income and expenses.

3.13 Impairment of Non-Financial Assets

The Group assesses at the end of each reporting period whether there is any indication that a non-financial asset, except for (i) deferred income tax assets, (ii) assets arising from employee benefits and (iii) non-current assets (or group of assets to be sold) classified as held for sale, may be impaired. If any such indication exists, the Group estimates the recoverable amount of the asset. However, irrespective of whether there is any indication of impairment, the Group tests (i) goodwill acquired in a business combination, (ii) intangible assets with an indefinite useful life and (iii) intangible assets not yet available for use for impairment annually by comparing their carrying amount with their recoverable amount.

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December 31, 2015 and 2014

The recoverable amount is estimated for the individual asset. If it is not possible to estimate the recoverable amount of the individual asset, the Group determines the recoverable amount of the cash-generating unit to which the asset belongs (the asset’s cash-generating unit). A cash-generating unit is the smallest identifiable group of assets that generates cash inflows that are largely independent of the cash inflows from other assets or groups of assets. The recoverable amount of an asset is the higher of its fair value less costs to sell and its value in use. Value in use is the present value of the future cash flows expected to be derived from an asset or cash-generating unit that are discounted by a pre-tax rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the future cash flow estimates have not been adjusted.

If the recoverable amount of an asset is less than its carrying amount, the carrying amount of the asset is reduced to its recoverable amount. That reduction is an impairment loss and recognized immediately in profit or loss. For the purpose of impairment testing, goodwill acquired in a business combination is allocated to each of the cash-generating units that are expected to benefit from the synergies of the combination. The impairment loss is allocated first to reduce the carrying amount of any goodwill allocated to the cash-generating unit and then to the other assets of the unit pro rata on the basis of the carrying amount of each asset in the unit.

An impairment loss recognized for goodwill is not reversed in a subsequent period. The Group assesses at the end of each reporting period whether there is any indication that an impairment loss recognized in prior periods for an asset, other than goodwill, may no longer exist or may have decreased, and an impairment loss recognized in prior periods for an asset other than goodwill shall be reversed if, and only if, there has been a change in the estimates used to determine the asset’s recoverable amount since the last impairment loss was recognized. The increased carrying amount of an asset other than goodwill attributable to a reversal of an impairment loss cannot exceed the carrying amount that would have been determined (net of amortization or depreciation) had no impairment loss been recognized for the asset in prior years.

3.14 Non-Current Assets Held for Sale

A non-current asset or disposal group is classified as held for sale if its carrying amount will be recovered principally through a sale transaction rather than through continuing use. For being qualified as held for sale, the asset (or disposal group) must be available for immediate sale in its present condition and its sale must be highly probable. A non-current asset (or disposal group) classified as held for sale is measured at the lower of its carrying amount and fair value less costs to sell which is measured in accordance with the applicable Korean IFRS, immediately before the initial classification of the asset (or disposal group) as held for sale.

A non-current asset while it is classified as held for sale or while it is part of a disposal group classified as held for sale is not depreciated (or amortized).

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Impairment loss is recognized for any initial or subsequent write-down of the asset (or disposal group) to fair value less costs to sell. Gains are recognized for any subsequent increase in fair value less costs to sell of an asset, but not in excess of the cumulative impairment loss that has been recognized.

3.15 Financial Liabilities at Fair Value through Profit or Loss

Financial liabilities at fair value through profit or loss are financial liabilities held for trading. After initial recognition, financial liabilities at fair value through profit or loss are measured at fair value and gains or losses arising from changes in the fair value, and gains or losses from sale and repayment of financial liabilities at fair value through profit or loss are recognized as net gains on financial instruments at fair value through profit or loss in the statement of comprehensive income.

3.16 Provisions

Provisions are recognized when the Group has a present obligation (legal or constructive) as a result of a past event and it is probable that an outflow of resources embodying economic benefits will be required to settle the obligation and a reliable estimate can be made of the amount of the obligation. The risks and uncertainties that inevitably surround many events and circumstances are taken into account in reaching the best estimate of provisions, and where the effect of the time value of money is material, the amount of provisions are the present value of the expenditures expected to be required to settle the obligation.

Provisions on confirmed and unconfirmed acceptances and guarantees, unfunded commitments of credit cards and unused credit lines of consumer and corporate loans are recognized using a valuation model that applies the credit conversion factor, probability of default, and loss given default.

Provisions are reviewed at the end of each reporting period and adjusted to reflect the current best estimate. If it is no longer probable that an outflow of resources embodying economic benefits will be required to settle the obligation, the provisions are reversed.

If the Group has a contract that is onerous, the present obligation under the contract is recognized and measured as provisions. An onerous contract is a contract in which the unavoidable costs of meeting the obligations under the contract exceed the economic benefits expected to be received under it. The unavoidable costs under a contract reflect the minimum net cost to exit from the contract, which is the lower of the cost of fulfilling it and any compensation or penalties arising from failure to fulfill it.

3.17 Financial Guarantee Contracts

A financial guarantee contract is a contract that requires the issuer(the Group) to make specified payments to reimburse the holder for a loss it incurs because a specified debtor fails to make payments when due according to the original or modified terms of a debt instrument.

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December 31, 2015 and 2014

Financial guarantee contracts are initially recognized at fair value. After initial recognition, financial guarantee contracts are measured at the higher of:

3.18 Equity Instrument issued by the Group

An equity instrument is any contract or agreement that evidences a residual interest in the assets of an entity after deducting all of its liabilities.

Ordinary shares are classified as equity. Incremental costs directly attributable to the issue of new shares are deducted, net of tax, from the equity.

3.19 Revenue Recognition

3.19.1 Interest income and expense

Interest income and expense are recognized using the effective interest method. The effective interest method is a method of calculating the amortized cost of a financial asset or a financial liability (or groups of financial assets or financial liabilities) and of allocating the interest income or interest expense over the relevant period.

The effective interest rate is the rate that exactly discounts estimated future cash receipts or payments through the expected life of the financial instrument or, where appropriate, a shorter period, to the net carrying amount of the financial asset or financial liability. When calculating the effective interest rate, the Group estimates cash flows considering all contractual terms of the financial instrument but does not consider future credit losses. The calculation includes all fees and points paid or received between parties to the contract that are an integral part of the effective interest rate, transaction costs, and all other premiums or discounts. In those rare cases when it is not possible to estimate reliably the cash flows or the expected life of a financial instrument (or group of financial instruments), the Group uses the contractual cash flows over the full contractual term of the financial instrument (or group of financial instruments).

Interest on impaired financial assets is recognized using the rate of interest used to discount the future cash flows for the purpose of measuring the impairment loss.

3.19.2 Fee and commission income

The Group recognizes financial service fees in accordance with the accounting standard of the financial instrument related to the fees earned.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Fees that are an integral part of the effective interest of a financial instrument

Such fees are generally treated as adjustments of effective interest. Such fees may include compensation for activities such as evaluating the borrower’s financial condition, evaluating and recording guarantees, collateral and other security arrangements, negotiating the terms of the instrument, preparing and processing documents and closing the transaction and origination fees received on issuing financial liabilities measured at amortized cost. However, fees relating to the creation or acquisition of a financial instrument at fair value through profit or loss are recognized as revenue immediately.

Fees earned as services are provided

Such fees are recognized as revenue as the services are provided. The fees include fees charged for servicing a financial instrument and charged for managing investments.

Fees that are earned on the execution of a significant act

Such fees are recognized as revenue when the significant act has been completed.

Commission on the allotment of shares to a client is recognized as revenue when the shares have been allotted and placement fees for arranging a loan between a borrower and an investor is recognized as revenue when the loan has been arranged.

A syndication fee received by the Group that arranges a loan and retains no part of the loan package for itself (or retains a part at the same effective interest rate for comparable risk as other participants) is compensation for the service of syndication. Such a fee is recognized as revenue when the syndication has been completed.

3.19.3 Dividend income

Dividend income is recognized in profit or loss when the right to receive payment is established. Dividend income from financial assets at fair value through profit or loss and financial investment is recognized in profit or loss as part of net gains on financial assets at fair value through profit or loss and other operating income and expenses, respectively.

3.20 Employee Compensation and Benefits

3.20.1 Post-employment benefits:

Defined benefit plans

All post-employment benefits, other than defined contribution plans, are classified as defined benefit plans. The amount recognized as a net defined benefit liability is the present value of the defined benefit obligation less the fair value of plan assets at the end of the reporting period.

The present value of the defined benefit obligation is calculated annually by independent actuaries using the Projected Unit Credit method. The rate used to discount post-employment benefit obligations is determined by reference to market yields at the end of the reporting period on high quality corporate bonds. The currency and term of the corporate bonds are consistent with the currency and estimated term of the post-employment benefit obligations. Actuarial gains and losses including experience adjustments and the effects of changes in actuarial assumptions are recognized in other comprehensive income(loss).

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December 31, 2015 and 2014

When the total of the present value of the defined benefit obligation minus the fair value of plan assets results in an asset, it is recognized to the extent of the present value of any economic benefits available in the form of refunds from the plan or reductions in future contributions to the plan.

Past service cost is the change in the present value of the defined benefit obligation, which arises when the Group introduces a defined benefit plan or changes the benefits of an existing defined benefit plan. Such past service cost is immediately recognized as an expense for the year.

Defined contribution plans

The contributions are recognized as employee benefit expense when they are due.

3.20.2 Short-term employee benefits

Short-term employee benefits are employee benefits (other than termination benefits) that are due to be settled within 12 months after the end of the period in which the employees render the related service. The undiscounted amount of short-term employee benefits expected to be paid in exchange for that service is recognized as a liability (accrued expense), after deducting any amount already paid.

The expected cost of profit-sharing and bonus payments are recognized as liabilities when the Group has a present legal or constructive obligation to make such payments as a result of past events rendered by employees and a reliable estimate of the obligation can be made.

3.20.3 Share-based payment

The Group operates share-based payment arrangements granting awards to directors and employees of the Group. The Group has a choice of whether to settle the awards in cash or by issuing equity instruments of KB Financial Group Inc., the ultimate parent company, at the date of settlement.

For a share-based payment transaction in which the terms of the arrangement provide the Group with the choice of whether to settle in cash or by issuing equity instruments, the Group determines that it has a present obligation to settle in cash because the Group has a past practice and a stated policy of settling in cash. Therefore, the Group accounts for the transaction in accordance with the requirements of cash-settled share-based payment transactions.

The Group measures the services acquired and the liability incurred at fair value. Until the liability is settled, the Group remeasures the fair value of the liability at the end of each reporting period and at the date of settlement, with any changes in fair value recognized in profit or loss for the period.

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3.20.4 Termination benefits

Termination benefits are payable when employment is terminated by the Group before the normal retirement date, or whenever an employee accepts voluntary redundancy in exchange for these benefits. The Group shall recognize a liability and expense for termination benefits at the earlier of the following dates: when the Group can no longer withdraw the offer of those benefits and when the Group recognizes costs for a restructuring that is within the scope of Korean IFRS 1037 and involves the payment of termination benefits. Termination benefits are measured by considering the number of employees expected to accept the offer in the case of a voluntary early retirement. Termination benefits over 12 months after the reporting period are discounted to present value.

3.21 Income Tax Expenses

Income tax expense comprises current tax expense and deferred income tax expense. Current and deferred income tax are recognized as income or expense for the period, except to the extent that the tax arises from a transaction or an event which is recognized, in the same or a different period outside profit or loss, either in other comprehensive income or directly in equity and a business combination.

3.21.1 Current income tax

Current income tax is the amount of income tax payable in respect of the taxable profit (loss) for a period. A difference between the taxable profit and accounting profit may arise when income or expense is included in accounting profit in one period, but is included in taxable profit in a different period. Differences may also arise if there is revenue that is exempt from taxation, or expense that is not deductible in determining taxable profit (loss). Current income tax liabilities (assets) for the current and prior periods are measured at the amount expected to be paid to (recovered from) the taxation authorities, using the tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period.

The Group offsets current income tax assets and current income tax liabilities if, and only if, the Group (a) has a legally enforceable right to set off the recognized amounts and (b) intends either to settle on a net basis, or to realize the asset and settle the liability simultaneously.

3.21.2 Deferred income tax

Deferred income tax is recognized, using the asset-liability method, on temporary differences arising between the tax based amount of assets and liabilities and their carrying amount in the consolidated financial statements. Deferred income tax liabilities are recognized for all taxable temporary differences and deferred income tax assets are recognized for all deductible temporary differences to the extent that it is probable that taxable profit will be available against which the deductible temporary difference can be utilized. However, deferred income tax liabilities are not recognized if they arise from the initial recognition of goodwill; deferred income tax is not accounted for if it arises from initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting nor taxable profit or loss.

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December 31, 2015 and 2014

Deferred income tax is provided on temporary differences arising on investments in subsidiaries, and associates, except for deferred income tax liabilities for which the timing of the reversal of the temporary difference is controlled by the Group and it is probable that the temporary difference will not reverse in the foreseeable future.

The carrying amount of a deferred income tax asset is reviewed at the end of each reporting period. The Group reduces the carrying amount of a deferred income tax asset to the extent that it is no longer probable that sufficient taxable profit will be available to allow the benefit of part or all of that deferred income tax asset to be utilized.

The Group offsets deferred income tax assets and deferred income tax liabilities when the Group has a legally enforceable right to offset current income tax assets against current income tax liabilities; and the deferred income tax assets and the deferred income tax liabilities relate to income taxes levied by the same taxation authority on either the same taxable entity; or different taxable entities which intend either to settle current income tax liabilities and assets on a net basis, or to realize the assets and settle the liabilities simultaneously, in each future period in which significant amounts of deferred income tax liabilities or assets are expected to be settled or recovered.

3.21.3 Uncertain tax positions

Uncertain tax positions arise from tax treatments applied by the Group which may be challenged by the tax authorities due to the complexity of the transaction or different interpretation of the tax laws, a claim for rectification brought by the Group, or an appeal for a refund claimed from the tax authorities related to additional assessments. The Group recognizes its uncertain tax positions in the consolidated financial statements based on the guidance in Korean IFRS 1012. The Income tax asset is recognized if a tax refund is probable for taxes paid and levied by the tax authority. However, interest and penalties related to income tax are recognized in accordance with Korean IFRS 1037.

3.22 Transactions with the Trust Accounts

Under the Financial Investment Services and Capital Markets Act, the Group recognizes trust accounts (“the trust accounts”) as separate. The borrowings from trust accounts represent transfer of funds in trust accounts into banking accounts. Such borrowings from trust accounts are recorded as receivables from the banking accounts in the trust accounts and as borrowings from trust accounts in the banking accounts. The Group earns trust fees from the trust accounts for its management of trust assets and operations. The reserves for future profits and losses are set up in the trust accounts for profits and losses related to those trust funds with a guarantee of the principal or of the principal and a certain minimum rate of return in accordance with the relevant laws and regulations applicable to trust operations. The reserves are used to provide for the losses on such trust funds and, if the losses incurred are in excess of the reserves, the excess losses are compensation paid as a loss on trust management in other operating expenses and the trust accounts recognize the corresponding compensation as compensation from banking accounts.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

3.23 Operating Segments

Operating segments are components of the Group where separate financial information is available and is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance.

Segment information includes items which are directly attributable and reasonably allocated to the segment.

4.1 Summary

4.1.1 Overview of Financial Risk Management Policy

The financial risks that the Group is exposed to are credit risk, market risk, liquidity risk, operational risk and others.

The note regarding financial risk management provides information about the risks that the Group is exposed to, including the objectives, policies and processes for managing the risks, the methods used to measure the risks, and capital adequacy. Additional quantitative information is disclosed throughout the consolidated financial statements.

The Group’s risk management system focuses on increasing transparency, developing the risk management environment, preventing transmission of risk to other related subsidiaries, and the preemptive response to risk due to rapid changes in the financial environment to support the Group’s long-term strategy and business decisions efficiently. Credit risk, market risk, liquidity risk, and operational risk have been recognized as the Group’s key risks. These risks are measured in Economic Capital or Value at Risk (VaR) and are managed using a statistical method.

4.1.2 Risk Management Organization

Risk Management Committee

The Risk Management Committee establishes risk management strategies in accordance with the directives of the Board of Directors and determines the Group’s target risk appetite, approves significant risk matters and reviews the level of risks that the Group is exposed to and the appropriateness of the Group’s risk management operations as an ultimate decision-making authority.

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December 31, 2015 and 2014

Risk Management Council

The Risk Management Council is a consultative group which reviews and makes decisions on matters delegated by the Risk Management Committee and discusses the detailed issues relating to the Group’s risk management.

Risk Management Subcommittee

The Risk Management Committee enforces decisions made by Risk Management Council, and makes practical decisions to implement risk management policies and procedures.

The Credit Risk Management Subcommittee reviews the newly developed credit derivatives and exotic products, and the establishment and modification of calculation guideline and measurement methodology on credit exposure limits.

The Market Risk Management Subcommittee reviews and makes decisions on setting risk limits and approving the standard for investments in newly developed standard, exotic and hybrid products.

The Operational Risk Management Subcommittee reviews the issues that have a significant effect on the Group’s operational risk relating to establishment, amendment and abolition of major system, process and others.

Risk Management Group

The Risk Management Group is responsible for managing specific policies, procedures and work processes relating to the Group’s risk management.

4.2 Credit Risk

4.2.1 Overview of Credit Risk

Credit risk is the risk of possible losses in an asset portfolio in the event of a counterparty’s default, breach of contract and deterioration in the credit quality of the counterparty. For risk management reporting purposes, the individual borrower’s default risk, country risk, specific risks and other credit risk exposure components are considered as a whole.

4.2.2 Credit Risk Management

The Group measures expected losses and economic capital on assets that are subject to credit risk management whether on- or off-balance sheet items and uses expected losses and economic capital as a management indicator. The Group manages credit risk by allocating credit risk economic capital limits.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

In addition, the Group controls the credit concentration risk exposure by applying and managing total exposure limits to prevent an excessive risk concentration to each industry and borrower.

The Group has organized a credit risk management group that focuses on credit risk management in accordance with the Group’s credit risk management policy. The Group’s credit group, customer service group and SME/SOHO service group, which are independent from the sales department, are responsible for loan policy, loan limit, loan review, credit evaluation, restructuring and subsequent events. The credit risk management group is also responsible for planning risk management policy, applying limits of credit lines, measuring the credit risk economic capital, adjusting credit limits, reviewing credit and verifying credit evaluation models.

4.2.3 Maximum exposure to credit risk

The Group’s maximum exposures of financial instruments, excluding equity securities, to credit risk without consideration of collateral values as of December 31, 2015 and 2014, are as follows:

4.2.4 Credit risk of loans

The Group maintains an allowance for loan losses associated with credit risk on loans to manage its credit risk.

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Loans are categorized as follows:

Credit quality of loans that are neither past due nor impaired is as follows:

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

Credit quality of loans graded according to internal credit ratings is as follows:

Loans that are past due but not impaired are as follows:

Impaired loans are as follows:

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Notes to Consolidated Financial Statements

December 31, 2015 and 2014

A quantification of the extent to which collateral and other credit enhancements mitigate credit risk as of December 31, 2015 and 2014, is as follows: