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Significant Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2017
Text block1 [abstract] |
Basis of Preparation |
| 2.1 | Basis of Preparation
The consolidated financial statements of the Group have been prepared in accordance with International Financial Reporting Standards(“IFRS”) as issued by the International Accounting Standards Board (“IASB”). The preparation of the 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 3.
Changes in Accounting Policy and Disclosures |
| 2.2 | Changes in Accounting Policy and Disclosures
(1) New standards and amendments adopted by the Group The Group has applied the following standards and amendments for the first time for their annual reporting period commencing January 1, 2017. The adoption of these amendments did not have any material impact on the financial statements. - Amendments to IAS 7, Statement of Cash Flows Amendments to IAS 7, Statement of Cash Flows requires to provide disclosures that enable used of financial statements to evaluate changes in liabilities arising from financing activities, including both changes arising from cash flows and non-cash flows (Note 32) - Amendments to IAS 12, Income Tax Amendments to IAS 12 clarify how to account for deferred tax assets related to debt instruments measured at fair value. IAS 12 provides requirements on the recognition and measurement of current or deferred tax liabilities or assets. The amendments issued clarify the requirements on recognition of deferred tax assets for unrealized losses, to address diversity in practice - Amendments to IFRS 12, Disclosures of Interests in Other Entities Amendments to IFRS 12 clarify when an entity’s interest in a subsidiary, a joint venture or an associate is classified as held for sales in accordance with IFRS 5, the entity is required to disclose other information except for summarized financial information in accordance with IFRS 12. (2) New standards, amendments and interpretations not yet adopted Certain new accounting standards and interpretations that have been published that are not mandatory for annual reporting period commencing January 1, 2017 and have not been early adopted by the Group are set out below. - Amendments to IAS 28, Investments in Associates and Joint Ventures When an investment in an associate or a joint venture is held by, or it held indirectly through, an entity that is a venture capital organization, or a mutual fund, unit trust and similar entities including investment-linked insurance funds, the entity may elect to measure that investment at fair value through profit or loss in accordance with IFRS 9. The amendments clarify that an entity shall make this election separately for each associate of joint venture, at initial recognition of the associate or joint venture. The Group will apply these amendments retrospectively for annual periods beginning on or after January 1, 2018, and early adoption is permitted. The Group does not expect the amendments to have a significant impact on the financial statements. - Amendment to IAS 40, Transfers of Investment Property Paragraph 57 of IAS 40 clarifies that a transfer to, or from, investment property, including property under construction, can only be made if there has been a change in use that is supported by evidence, and provides a list of circumstances as examples. The amendment will be effective for annual periods beginning on or after January 1, 2018, with early adoption permitted. The Group does not expect the amendment to have a significant impact on the financial statements. - Amendments to IFRS 2, Share-based Payment Amendments to IFRS 2 clarify accounting for a modification to the terms and conditions of a share-based payment that changes the classification of the transaction from cash-settled to equity-settled. Amendments also clarify that the measurement approach should treat the terms and conditions of a cash-settled award in the same way as for an equity-settled award. The amendments will be effective for annual periods beginning on or after January 1, 2018, with early adoption permitted. The Group does not expect the amendments to have a significant impact on the financial statements. - Enactments to IFRIC 22, Foreign Currency Transaction and Advance Consideration According to these enactments, the date of the transaction for the purpose of determining the exchange rate to use on initial recognition of the related asset, expense or income (or part of it) is the date on which an entity initially recognizes the non-monetary asset or non-monetary liability arising from the payment or receipt of advance consideration. If there are multiple payments or receipts in advance, the entity shall determine a date of the transaction for each payment or receipt of advance consideration. These enactments will be effective for annual periods beginning on or after January 1, 2018, with early adoption permitted. The Group does not expect the enactments to have a significant impact on the financial statements. - Enactment of IFRS 16, Leases IFRS 16 Leases issued on May 22, 2017 is effective for annual periods beginning on or after January 1, 2019, with early adoption permitted. This standard will replace IAS 17 Leases, IFRIC 4 Determining whether an Arrangement contains a Lease, SIC-15 Operating Leases-Incentives, and SIC-27Evaluating the Substance of Transactions Involving the Legal Form of a Lease. At inception of a contract, the entity shall assess whether the contract is, or contains, a lease. Also, at the date of initial application, the entity shall assess whether the contract is, or contains, a lease in accordance with the standard. However, the entity will not need to reassess all contracts with applying the practical expedient. As practical expedient, the entity can elect to apply the new guidance regarding the definition of a lease only to contracts entered into (or changed) on or after the date of initial application. Existing lease contracts will not need to be reassessed. This expedient must be consistently applied to all contracts. For a contract that is, or contains, a lease, the entity shall account for each lease component within the contract as a lease separately from non-lease components of the contract. A lessee is required to recognize a right-of-use asset representing its right to use the underlying leased asset and a lease liability representing its obligation to make lease payments. The lessee may elect not to apply the requirements to short-term lease (a lease term of 12 months or less at the commencement date) and low value assets (e.g. underlying assets below $ 5,000). In addition, as a practical expedient, the lessee may elect, by class of underlying asset, not to separate non-lease components from lease components, and instead account for each lease component and any associated non-lease components as a single lease component. (1) Lessee accounting A lessee shall apply this standard to its leases either:
| • |  | retrospectively to each prior reporting period presented applying IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors (Full retrospective application); or
| • |  | retrospectively with the cumulative effect of initially applying the standard recognized at the date of initial application.
The Group has not yet elected the application method. The Group performed an impact assessment to identify potential financial effects of applying IFRS 16. The assessment was performed based on available information as at December 31, 2017 to identify effects on 2017 financial statements. The Group is analyzing the effects on the financial statements; however, it is difficult to provide reasonable estimates of financial effects until the analyses is complete. (2) Lessor accounting The Company expects the effect on the financial statements applying the new standard will not be significant - IFRS 9, Financial Instruments The new standard for financial instruments issued on September 25, 2015 are effective for annual periods beginning on or after January 1, 2018 with early application permitted. This standard will replace IAS 39, Financial Instruments: Recognition and Measurement. The Group will apply the standards for annual periods beginning on or after January 1, 2018 The standard requires retrospective application with some exceptions. For example, an entity is not required to restate prior period in relation to classification and measurement (including impairment) of financial instruments. The standard requires prospective application of its hedge accounting requirements for all hedging relationships except the accounting for time value of options and other exceptions. IFRS 9, Financial Instruments requires all financial assets to be classified and measured on the basis of the entity’s business model for managing financial assets and the contractual cash flow characteristics of the financial assets. A new impairment model, an expected credit loss model, is introduced and any subsequent changes in expected credit losses will be recognized in profit or loss. Also, hedge accounting rules amended to extend the hedging relationship, which consists only of eligible hedging instruments and hedged items, qualifies for hedge accounting. An effective implementation of IFRS 9 requires preparation processes including financial impact assessment, accounting policy establishment, accounting system development and the system stabilization. The impact on the Group’s financial statements due to the application of the standard is dependent on judgements made in applying the standard, financial instruments held by the Group and macroeconomic variables. The Group performed an impact assessment to identify potential financial effects of applying IFRS 9. The assessment was performed based on available information as at December 31, 2017, and the results of the assessment are explained as below. (a) Classification and Measurement of Financial Assets When implementing IFRS 9, the classification of financial assets will be driven by the Group’s business model for managing the financial assets and contractual terms of cash flow. The following table shows the classification of financial assets measured subsequently at amortized cost, at fair value through other comprehensive income and at fair value through profit or loss. If a hybrid contract contains a host that is a financial asset, the classification of the hybrid contract shall be determined for the entire contract without separating the embedded derivative.
Business model for the contractual cash flows characteristics |  |  |  | Solely represent payments of principal and interest |  | All other
Hold the financial asset for the collection of the contractual cash flows |  |  |  | Measured at amortized cost1 |  | Recognized at fair value through profit or loss2
Hold the financial asset for the collection of the contractual cash flows and sale |  |  |  | Recognized at fair value through other comprehensive income1 |
Hold for sale |  |  |  | Recognized at fair value through profit or loss |
| 1 | A designation at fair value through profit or loss is allowed only if such designation mitigates an accounting mismatch (irrevocable)
| 2 | Equity investments not held for trading can be recorded in other comprehensive income (irrevocable).
With the implementation of IFRS 9, the criteria to classify the financial assets at amortized cost or at fair value through other comprehensive income are more strictly applied than the criteria applied with IAS 39. Accordingly, the financial assets at fair value through profit or loss may increase by implementing IFRS 9 and may result an extended fluctuation in profit or loss. As of December 31, 2017, the Group owns loan and trade receivables of ￦ 9,653,443 million, financial assets available-for-sales of ￦ 380,953 million. According to IFRS 9, a debt instrument is measured at amortized cost if: a) the objective of the business model is to hold the financial asset for the collection of the contractual cash flows, and b) the contractual cash flows under the instrument solely represent payments of principal and interest. Also, a debt instrument is measured at fair value through other comprehensive income if the objective of the business model is achieved both by collecting contractual cash flows and selling financial assets; and the contractual cash flows represents solely payments of principal and interest on a specific date under contract terms. Based on results from the impact assessment of IFRS 9, the application of the new standard as at December 31, 2017 does not have a material impact on the Group’s financial statements. According to IFRS 9, equity instruments that are not held for trading, the Group plans to elect an irrevocable election at initial recognition to classify the instruments as assets measured at fair value through other comprehensive income, which all subsequent changes in fair value being recognized in other comprehensive income and not recycled to profit or loss. As at December 31, 2017, the Group holds equity instruments of ￦ 371,054 million classified as financial assets available-for-sale. Based on results from the impact assessment of IFRS 9, the Group expects the application of IFRS 9 on these financial assets will not have a material impact on the financial statements. According to IFRS 9, debt instruments those contractual cash flows do not represent solely payments of principal and interest and held for trading, and equity instruments that are not designated as instruments measured at fair value through other comprehensive income are measured at fair value through profit or loss. (b) Impairment: Financial Assets and Contract Assets The new impairment model requires the recognition of impairment provisions based on expected credit losses (ECL) rather than only incurred credit losses as is the case under IAS 39. It applies to financial assets classified at amortized cost, debt instruments measured at fair value through other comprehensive income, lease receivables, contract assets, loan commitments and certain financial guarantee contracts. As at December 31, 2017, the Group owns debt investment carried at amortized cost of ￦ 9,653,594 million (loans and receivables of ￦ 9,653,443 million, financial asset held-to-maturity of ￦ 151 million). And, the Group recognized loss allowance of ￦ 523,799 million for these assets. As a result of the impact assessment, the Group expects the application of the new standard as at December 31, 2017 does not have a material impact on the Group’s financial statements. (c) Hedge Accounting Hedge accounting mechanics (fair value hedges, cash flow hedges and hedge of net investments in a foreign operations) required by IAS 39 remains unchanged in IFRS 9, however, the new hedge accounting rules will align the accounting for hedging instruments more closely with the Group’s risk management practices. As a general rule, more hedge relationships might be eligible for hedge accounting, as the standard introduces a more principles-based approach. IFRS 9 allows more hedging instruments and hedged items to qualify for hedge accounting, and relaxes the hedge accounting requirement by removing two hedge effectiveness tests that are a prospective test to ensure that the hedging relationship is expected to be highly effective and a quantitative retrospective test (within range of 80-125 %) to ensure that the hedging relationship has been highly effective throughout the reporting period. As of December 31, 2017, the Group applies the hedge accounting to its assets, liabilities that amount to ￦ 7,389 million, ￦ 93,770 million respectively. The Group has performed an impact assessment with an assumption that the Group applies hedge accounting in accordance with IFRS 9. As a result of the impact assessment, the Group expects the application of the new standard as at December 31, 2017 does not have a material impact on the Group’s financial statements. - IFRS 15 Revenue from Contracts with Customers The Group will apply IFRS 15 Revenue from Contracts with Customers issued on November 6, 2015 for annual reporting periods beginning on or after January 1, 2018, and earlier application is permitted. This standard replaces IAS 18 Revenue, IAS 11 Construction Contracts, SIC-31, Revenue-Barter Transactions Involving Advertising Services, IFRIC 13 Customer Loyalty Programs, IFRIC 15 Agreements for the Construction of Real Estate and IFRIC 18 Transfers of assets from customers. The Group must apply IFRS 15 Revenue from Contracts with Customers within annual reporting periods beginning on or after January 1, 2018, and will elect the modified retrospective approach which will recognize the cumulative impact of initially applying the revenue standard as an adjustment to retained earnings as at January 1, 2018, the period of initial application. IAS 18 and other current revenue standard identify revenue as income that arises in the course of ordinary activities of an entity and provides guidance on a variety of different types of revenue, such as, sale of goods, rendering of services, interest, dividends, royalties and construction contracts. However, the new standard is based on the principle that revenue is recognized when control of a good or service transfers to a customer so the notion of control replaces the existing notion of risks and rewards. A new five-step process must be applied before revenue from contract with customers can be recognized:
| • |  | Identify contracts with customers
| • |  | Identify the separate performance obligation
| • |  | Determine the transaction price of the contract
| • |  | Allocate the transaction price to each of the separate performance obligations, and
| • |  | Recognize the revenue as each performance obligation is satisfied.
The Group formed a task force team since fourth quarter of 2014 for preparation of implementing IFRS 15 Revenue from Contracts with Customers. Also the Group develops the internal control system and implements accounting process system by analyzing the Group’s revenue structure with accounting experts and IT specialists. IFRS 15 will affect not only accounting treatments but also the general business practice including sales strategy and operational structures. Therefore, the Group accomplished an orientation program for both Group’s directors and employees, and periodically reported to the managements about implementation plan and progress. Group identified the following areas are likely to be affected in general.
| (a) | Identifying performance obligations
The Group provides telecommunication services and sells handsets as their main business. With the implementation of IFRS 15, the Group identifies performance obligations with a customer such as providing telecommunication services, selling handsets and other. The timing of revenue recognition depends on a performance obligation is satisfied at a point in time or over time. Where a performance obligation is satisfied over time, the related revenue is also recognized over time.
| (b) | Allocation the transaction price and Revenue recognition
With implementation of IFRS 15, the Group allocated the transaction price to each performance obligation identified in a contract based on the relative stand-alone selling prices of the goods or services being provided to the customer. To allocate the transaction price to each performance obligation on a relative stand-alone price basis, the Group determines the stand-alone selling price at contract inception of the distinct good or service underlying each performance obligation in the contract and allocate the transaction price in proportion to those stand-alone selling price. The stand-alone selling price is the price at which the Group would sell a promised good or service separately to the customer. The best evidence of a stand-alone selling price is the observable price of a good or service when the Group sells that good or service separately in similar circumstances and to similar customers. The Group recognizes the allocated amount as contract assets or contract liabilities, and amortizes it through the remaining period which is adjusted in operating income.
| (c) | Incremental costs of obtaining a contract
The Group pays the commission fees when new customer subscribe for telecommunication services. The incremental contract acquisition costs are those commission fees that the Group incurs to acquire a contract with a customer that it would not have incurred if the contract had not been acquired. According to IFRS 15, the Group recognizes as an asset the incremental contract acquisition costs and amortize it over the expected period of benefit. However, as a practical expedient, the Group may recognize the incremental contract acquisition costs as an expense when incurred if the amortization period of the asset is one year or less. With implementation of IFRS 15, the Group’s operating income and expenses are expected to be decreased. Under the modified retrospective method, we will apply the rules to all open contracts existing as of January 1, 2018, recognizing in beginning retained earnings for 2018 an adjustment between ￦900 billion and ￦1,100 billion for the cumulative effect of the change.
Consolidation |
| 2.3 | Consolidation
The Group has prepared the consolidated financial statements in accordance with IFRS 10 Consolidated Financial Statements. (1) Subsidiaries Subsidiaries are all entities over which the Group has control. The Group controls an entity when the Group is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power to direct the activities of the entity. Subsidiaries are fully consolidated from the date on which control is transferred to the Group. They are deconsolidated from the date that control ceases. The acquisition method of accounting is used to account for business combinations by the Group. The consideration transferred is measured at the fair values of the assets transferred, and identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. The Group recognizes any non-controlling interest in the acquired entity on an acquisition-by-acquisition basis either at fair value or at the non-controlling interest’s proportionate share of the acquired entity’s net identifiable assets. All other non-controllinginterests are measured at fair values, unless otherwise required by other standards. Acquisition-related costs are expensed as incurred. The excess of consideration transferred, amount of any non-controlling interest in the acquired entity and acquisition-date fair value of any previous equity interest in the acquired entity over the fair value of the net identifiable assets acquired is recorded as goodwill. If those amounts are less than the fair value of the net identifiable assets of the business acquired, the difference is recognized directly in profit or loss as a bargain purchase. Intercompany transactions, balances and unrealized gains on transactions between group companies are eliminated. Unrealized losses are also eliminated unless the transaction provides evidence of an impairment of the transferred asset. Accounting policies of subsidiaries have been changed where necessary to ensure consistency with the policies adopted by the Group. (2) Changes in ownership interests in subsidiaries without change of control Any difference between the amount of the adjustment to non-controlling interest that do not result in a loss of control and any consideration paid or received is recognized in a separate reserve within equity attributable to owners of the Controlling Group. (3) Disposal of subsidiaries When the Group ceases to consolidate for a subsidiary because of a loss of control, any retained interest in the subsidiary is remeasured to its fair value with the change in carrying amount recognized in profit or loss. (4) Associates Associates are all entities over which the Group has significant influence, and investments in associates are initially recognized at acquisition cost using the equity method. Unrealized gains on transactions between the Group and its associates are eliminated to the extent of the Group’s interest in the associates. If there is any objective evidence that the investment in the associate is impaired, the Group recognizes the difference between the recoverable amount of the associate and its book amount as impairment loss. (5) Joint arrangement A joint arrangement, wherein two or more parties have joint control, is classified as either a joint operation or a joint venture. A joint operator recognizes its direct right to the assets, liabilities, revenues and expenses of joint operations and its share of any jointly held or incurred assets, liabilities, revenues and expenses. A joint venturer has rights to the net assets relating to the joint venture and accounts for that investment using the equity method.
Segment Reporting |
| 2.4 | Segment Reporting
Information of each operating segment is reported in a manner consistent with the business segment reporting provided to the chief operating decision-maker (Note 33). The chief operating decision-maker is responsible for allocating resources and assessing performance of the operating segments.
Foreign Currency Translation |
| 2.5 | Foreign Currency Translation
(1) 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 each entity operates (the “functional currency’). The consolidated financial statements are presented in Korean won, which is the Controlling Company’s functional and presentation currency. (2) Transactions and balances Foreign currency transactions are translated into the functional currency using the exchange rates at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the translation of monetary assets and liabilities denominated in foreign currencies at year end exchange rates are generally recognized in profit or loss. Non-monetary items that are measured at fair value in a foreign currency are translated using the exchange rates at the date when the fair value was determined. Translation differences on assets and liabilities carried at fair value are reported as part of the fair value gain or loss. For example, translation differences on non-monetary assets and liabilities such as equities held at fair value through profit or loss are recognized in profit or loss as part of the fair value gain or loss and translation differences on non-monetary assets such as equities classified as available-for-sale financial assets are recognized in other comprehensive income. (3) Translation to the presentation currency The results and financial position of foreign operations that have a functional currency different from the presentation currency are translated into the presentation currency as follows:
| • |  | 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 for each statement of profit or loss are translated at average exchange rates for the period,
| • |  | equity is translated at the historical exchange rate, and
| • |  | all resulting exchange differences are recognized in other comprehensive income.
Cash and Cash Equivalents |
| 2.6 | Cash and Cash Equivalents
Cash and cash equivalents include cash on hand, deposits held at call with banks, and other short-term highly liquid investments with original maturities of less than three months.
Financial Assets |
| 2.7 | Financial Assets
(1) Classification and measurement The Group classifies its financial assets into the following categories: financial assets at fair value through profit or loss, available-for-sale financial assets, loans and receivables, and held-to-maturity financial assets. Regular way purchases and sales of financial assets are recognized on trade-date, the date on which the Group commits to purchase or sell the asset. The Group may designate the entire hybrid (combined) contract as a financial asset at fair value through profit or loss for a contract that contains one or more embedded derivatives. At initial recognition, the Group measures a financial asset at its fair value plus, in the case of a financial asset not at fair value through profit or loss, transaction costs that are directly attributable to the acquisition of the financial asset. Transaction costs of financial assets carried at fair value through profit or loss are expensed in profit or loss. Available-for-sale financial assets and financial assets at fair value through profit or loss are subsequently carried at fair value. And, loans and receivables and held-to-maturity investments are subsequently carried at amortized cost using the effective interest method. Gains or losses arising from changes in the fair value of financial assets at fair value through profit or loss are recognized in profit or loss within other income or other expenses. Gains or losses arising from changes in the available-for-sale financial assets are recognized in other comprehensive income, and amounts are reclassified to profit or loss when the associated assets are sold or impaired. (2) Impairment The Group assesses at the end of each reporting period whether there is objective evidence that a financial asset or a group of financial assets is impaired. A financial asset or a group of financial assets is impaired and impairment losses are incurred 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 a group of financial assets that can be reliably estimated. Impairment of loans and receivables is presented as a deduction in an allowance account. Impairment of other financial assets is directly deducted from their carrying amount. The Group writes off financial assets when the assets are determined to be no longer recoverable. The criteria that the Group uses to determine that there is objective evidence of an impairment loss include:
| • |  | Significant financial difficulty of the issuer or obligor;
| • |  | A breach of contract, such as a default or delinquency in interest or principal payments;
| • |  | For economic or legal reasons relating to the borrower’s financial difficulty, granting to the borrower a concession that the lender would not otherwise consider;
| • |  | It becomes probable that the borrower will enter bankruptcy or other financial reorganization;
| • |  | The disappearance of an active market for that financial asset because of financial difficulties; or
| • |  | Observable data indicating that there is a measurable decrease in the estimated future cash flows from a portfolio of financial assets since the initial recognition of those assets, although the decrease cannot yet be identified with the individual financial assets in the portfolio.
(3) Derecognition If the Group transfers a financial asset and the transfer does not result in derecognition because the Group has retained substantially of all risks and rewards of ownership of the transferred asset due to a recourse in the event the debtor defaults, the Group continues to recognize the transferred asset in its entirety and recognizes a financial liability for the consideration received. The related financial liability is classified as ‘borrowings’ in the statement of financial position. (4) Offsetting of financial instruments Financial assets and liabilities are offset and the net amount reported in the statements of financial position where there is a legally enforceable right to offset the recognized amounts and there is an intention to settle on a net basis or realize the assets and settle the liability simultaneously. The legally enforceable right must not be contingent on future events and must be enforceable in the normal course of business and in the event of default, insolvency or bankruptcy of the Group or the counterparty.
Derivative Instruments |
| 2.8 | Derivative Instruments
Derivatives are initially recognized at fair value on the date when a derivative contract is entered into and are subsequently remeasured at their fair value. Changes in the fair value of the derivatives that are not qualified for hedge accounting are recognized in the statement of profit or loss within ‘other income (expenses)’ and ‘finance income (expenses)’ according to the nature of transactions. 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 (Day 1 profit and loss). In these circumstances, the fair value of the financial instrument is recognized as the transaction price and the difference 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 in the statement of profit or loss. The Group applies cash flow hedge accounting to hedge the risks of foreign exchange and interest rates of the variable rate foreign currency bonds. The effective portion of changes in the fair value of derivatives that are designated and qualify as cash flow hedges is recognized in other comprehensive income. The gain or loss relating to the ineffective portion is recognized immediately as finance income (expenses) in the statement of profit or loss. Amounts of changes in fair value of effective hedging instruments accumulated in other comprehensive income are recognized as ‘finance income (expenses)’ for the periods when the corresponding transactions affect profit or loss. When a forecast transaction is no longer expected to occur, the cumulative gain or loss that is reported in other comprehensive income is recognized as ‘finance income (expenses)’. If the hedge no longer meets the criteria for hedge accounting, the adjustment to the carrying amount of a hedged item for which the effective interest method is used is amortized to profit or loss over the period to maturity.
Inventories |
| 2.9 | Inventories
Inventories are stated at the lower of cost and net realizable value. Cost is determined using the moving average method, except for inventories in-transit which is determined using the specific identification method.
Non-current Assets (or Disposal Group) Held-for-sale |
| 2.10 | Non-current Assets (or Disposal Group) Held-for-sale
Non-current assets (or disposal group) are classified as assets held-for-sale when their carrying amount is to be recovered principally through a sale transaction and a sale is considered highly probable. The assets are measured at the lower amount between their carrying amount and the fair value less costs to sell.
Property and Equipment |
| 2.11 | Property and Equipment
Property and equipment are stated at its cost less accumulated depreciation and accumulated impairment losses. Historical cost includes expenditures that is directly attributable to the acquisition of the items. Depreciation of all property, plant, and equipment, except for land is calculated using the straight-line method to allocate their cost, net of their residual values, over their estimated useful lives, as follows:
|  | Estimated Useful Life
Buildings |  | 5 – 40 years
Structures |  | 5 – 40 years
Machinery and equipment (Telecommunications equipment and others) Others |  | 2 – 40 years
Vehicles |  | 4 – 6 years
Tools |  | 4 – 6 years
Office equipment |  | 2 – 6 years
The depreciation method, residual values and useful lives of property and equipment are reviewed at the end of each reporting period and, if appropriate, accounted for as changes in accounting estimates.
Investment Property |
| 2.12 | Investment Property
Investment property is a property held to earn rentals or for capital appreciation. An investment property is measured initially at its cost. After recognition as an asset, investment property is carried at cost less accumulated depreciation and impairment losses. Investment property, except for land, is depreciated using the straight-line method over their useful lives from 10 to 40 years.
Intangible Assets |
| 2.13 | Intangible Assets
(1) Goodwill Goodwill is measured as explained in Note 2.3 (1) and goodwill arising from acquisition of subsidiaries and business are included in intangible assets. Goodwill is tested annually for impairment and carried at cost less accumulated impairment losses. (2) Intangible assets except goodwill Intangible assets, except for goodwill, are initially recognized at its historical cost, and carried at cost less accumulated amortization and accumulated impairment losses. Membership rights (condominium membership and golf membership) and broadcast rights that have an indefinite useful life are not subject to amortization because there is no foreseeable limit to the period over which the assets are expected to be utilized. The Group amortizes intangible assets with a limited useful life using the straight-line method over the following periods:
|  | Estimated Useful Life
Development costs |  | 5 – 6 years
Software |  | 6 years
Frequency usage rights |  | 5 –10 years
Others1 |  | 2 – 50 years
| 1 | Membership rights (condominium membership and golf membership) and broadcast license included in others are classified as intangible assets with indefinite useful life.
Borrowing Costs |
| 2.14 | Borrowing Costs
General and specific borrowing costs that are directly attributable to the acquisition, construction or production of a qualifying asset are capitalized during the period of time that is required to complete and prepare the asset for its intended use or sale. Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs eligible for capitalization. Other borrowing costs are expensed in the period in which they are incurred.
Government Grants |
| 2.15 | Government Grants
Grants from the government are recognized at their fair value where there is a reasonable assurance that the grant will be received and the Group will comply with all attached conditions. Government grants related to assets are presented in the statement of financial position by setting up the grant as deferred income that is recognized in profit or loss on a systematic basis over the useful life of the asset. Grants related to income are presented as a credit in the statement of profit or loss within ‘other income’.
Impairment of Non-Financial Assets |
| 2.16 | Impairment of Non-Financial Assets
Goodwill and intangible assets that have an indefinite useful life are not subject to amortization and are tested annually for impairment, or more frequently if events or changes in circumstances indicate that they might be impaired. Other assets are tested for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. An impairment loss is recognized for the amount by which the asset’s carrying amount exceeds its recoverable amount. The recoverable amount is the higher of an asset’s fair value less costs to sell and value in use. Non-financialassets, other than goodwill, that suffered impairment are reviewed for possible reversal of the impairment at the end of reporting period.
Financial Liabilities |
| 2.17 | Financial Liabilities
(1) Classification and measurement The Group’s financial liabilities at fair value through profit or loss are financial instruments held for trading and designated as financial liabilities at fair value through profit or loss. Financial liabilities held for trading are financial liabilities that are incurred principally for the purpose of repurchasing them in the near term and derivatives that are not designated as hedges or bifurcated from financial instruments containing embedded derivatives. Financial liabilities that the Group designated as at fair value through profit or loss are structured financial liabilities containing embedded derivatives issued by the Group. As it was unable to measure the embedded derivatives separately from its host contract, the Group designated the entire hybrid contact as at fair value through profit or loss. The financial liability that the Group designated as at fair value through profit or loss is a foreign convertible bond. The Group classifies non-derivative financial liabilities, except for financial liabilities at fair value through profit or loss, financial guarantee contracts and financial liabilities that arise when a transfer of financial assets does not qualify for derecognition, as financial liabilities carried at amortized cost and presented as ‘trade payables’, ‘borrowings’, and ‘other financial liabilities’ in the statement of financial position. Preferred shares that provide for a mandatory redemption at a particular date are classified as liabilities. Interest expenses on these preferred shares calculated using the effective interest method are recognized in the statement of profit or loss as ‘finance costs’, together with interest expenses recognized from other financial liabilities. (2) Derecognition Financial liabilities are removed from the statement of financial position when it is extinguished, for example, when the obligation specified in the contract is discharged or cancelled or expired or when the terms of an existing financial liability are substantially modified.
Financial Guarantee Contracts |
| 2.18 | Financial Guarantee Contracts
Financial guarantees contracts provided by the Group are initially measured at fair value on the date the guarantee was given. Subsequent to initial recognition, the Group’s liabilities under such guarantees are measured at the higher of the amounts below and recognized as ‘other financial liabilities’:
| • |  | the amount determined in accordance with IAS 37 Provisions, Contingent Liabilities and Contingent Assets; or
| • |  | the amount initially recognized less cumulative amortization in accordance with IAS 18 Revenue.
Compound Financial Instruments |
| 2.19 | Compound Financial Instruments
Compound financial instruments are convertible bonds that can be converted into equity instruments at the option of the holder. The liability component of a compound financial instrument is recognized initially at the fair value of a similar liability that does not have an equity conversion option. The equity component is recognized initially on the difference between the fair value of the compound financial instrument as a whole and the fair value of the liability component. Any directly attributable transaction costs are allocated to the liability and equity components in proportion to their initial carrying amounts.
Employee Benefits |
| 2.20 | Employee Benefits
(1) Post-employment benefits The Group operates both defined benefit and defined contribution plans. A defined contribution plan is a pension plan under which the Group pays fixed contributions into a separate entity. The contributions are recognized as employee benefit expenses when an employee has rendered service. A defined benefit plan is a pension plan that is not a defined contribution plan. Generally, post-employment benefits are payable after the completion of employment, and the benefit amount depended on the employee’s age, periods of service or salary levels. The liability recognized in the statement of financial position in respect of defined benefit pension plans is the present value of the defined benefit obligation at the end of the reporting period less the fair value of plan assets. The defined benefit obligation is calculated annually by independent actuaries using the projected unit credit method. The present value of the defined benefit obligation is determined by discounting the estimated future cash outflows using interest rates of high-quality corporate bonds that are denominated in the currency in which the benefits will be paid, and that have terms approximating to the terms of the related obligation. Remeasurement gains and losses arising from experience adjustments and changes in actuarial assumptions are recognized in the period in which they occur, directly in other comprehensive income. Changes in the present value of the defined benefit obligation resulting from plan amendments or curtailments are recognized immediately in profit or loss as past service costs. (2) 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 recognizes termination benefits at the earlier of the following dates: when the entity can no longer withdraw the offer of those benefits or when the entity recognizes costs for a restructuring.
Share-based payments |
| 2.21 | Share-based payments
Equity-settled share-based payment is recognized at fair value of equity instruments on grant date, and employee benefit expense is recognized over the vesting period. At the end of each period, the Group revises its estimates of the number of options that are expected to vest based on the non-marketvesting and service conditions. It recognizes the impact of the revision to original estimates, if any, in profit or loss, with a corresponding adjustment to equity. When the options are exercised, the Group issues new shares. The proceeds received, net of any directly attributable transaction costs, are recognized as share capital (nominal value) and share premium.
Provisions |
| 2.22 | Provisions
Provisions are measured at the present value of the expenditures expected to be required to settle the obligation, and the increase in the provision due to passage of time is recognized as interest expense.
Leases |
| 2.23 | Leases
(1) Lessee A lease is an agreement, whereby the lessor conveys to the lessee, in return for a payment or series of payments, the right to use an asset for an agreed period of time. Leases where all the risks and rewards of ownership are not transferred to the Group are classified as operating leases. Lease payments under operating leases are recognized as expenses on a straight-line basis over the lease term. Leases where the Group has substantially all the risks and rewards of ownership are classified as finance leases. Finance leases are capitalized as lease assets and liabilities at the lease’s inception at the fair value of the leased property or, if lower, the present value of the minimum lease payments. (2) Lessor A lease is classified as a finance lease if it transfers substantially all the risks and rewards incidental to ownership at the inception of the lease. A lease other than a finance lease is classified as an operating lease. Lease income from operating leases is recognized in income on a straight-line basis over the lease term. Initial direct costs incurred by the lessor in negotiating and arranging an operating lease is 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.
Share Capital |
| 2.24 | Share Capital
The Group classifies ordinary shares as equity. Where the Controlling Company purchases its own shares, the consideration paid, including any directly attributable incremental costs, is deducted from equity until the share are cancelled or reissued. When these treasury shares are reissued, any consideration received is including in equity attributable to the equity holders of the Controlling Company.
Revenue Recognition |
| 2.25 | Revenue Recognition
Revenue is measured at the fair value of the consideration received or receivable for the sale of goods or rendering of services arising from the normal activities of the Group. Amounts disclosed as revenue are net of value added taxes, returns, rebates and discounts and after elimination of intra-group transactions. The Group recognizes revenue when the amount of revenue can be reliably measured; when it is probable that future economic benefits will flow to the Group; and when specific criteria have been met for each of the Group’s activities, as described below. The Group bases its estimate on historical results, taking into consideration the type of customer, the type of transaction and the specifics of each arrangement. (1) Rendering of Services When providing interconnection or telecommunications service to a customer based on service plans, the related revenue is recognized at the time service is provided. When providing the telecommunications equipment rental service to a customer based on service plans, the related revenue is recognized on straight-line basis over the contract period. Revenue related to the other telecommunications services is recognized when the service is provided to the customer. For other services, when the outcome of a transaction involving the rendering of services can be estimated reliably, revenue associated with such a transaction is recognized by reference to the stage of performance of the services. When the outcome of the transaction involving the rendering of services cannot be estimated reliably, revenue is recognized only to the extent of the expenses recognized that are recoverable. Total consideration for combined services is allocated to each service in proportion to its fair value and the allocated amount is recognized as revenue according to revenue recognition policy for the service. (2) Sales of goods The Group sells a range of handsets. Revenue from the sale of goods is recognized when products are delivered to the purchaser. (3) Interest income Interest income is recognized using the effective interest method according to the time passed. When a loan and receivable is impaired, the Group reduces the carrying amount to its recoverable amount and continues unwinding the discount as interest income. Interest income on impaired loans and receivables is recognized using the original effective interest rate. (4) Commission fees Commission fees related to credit card business are recognized when it is probable that future economic benefits will flow to the entity and these benefits can be reliably measured. Revenues from acquiree fee, agent fee, optional service fees, member service fees and credit card service charge are measured at the fair value of the consideration received and recognized on an accrual basis. (5) Royalty income Royalty income is recognized on an accrual basis in accordance with the substance of the relevant agreements. (6) Dividend income Dividend income is recognized when the right to receive payment is established. (7) Customer loyalty program The Group operates a customer loyalty program where customers accumulate points for purchases made which entitle them to discounts on future purchases. The reward points are recognized as a separately identifiable component of the initial sale transaction. The fair value of the consideration received or receivable in respect of the initial sale is allocated between the reward points and the other components of the sale. The fair value of the reward points is measured by taking into account the proportion of the reward points that are not expected to be redeemed by customers. Revenue from the reward points is recognized when the points are redeemed.
Current and Deferred Income Tax |
| 2.26 | Current and Deferred Income Tax
The tax expense for the period consists of current and deferred tax. Tax is recognized on the profit for the period in the statement of profit or loss, except to the extent that it relates to items recognized in other comprehensive income or directly in equity. In this case, the tax is also recognized in other comprehensive income or directly in equity, respectively. The tax expense is calculated on the basis of the tax laws enacted or substantively enacted at the end of the reporting period. Management periodically evaluates tax policies that are applied in tax returns in which applicable tax regulation is subject to interpretation. The Group recognizes current income tax on the basis of the amount expected to be paid to the tax authorities. Deferred tax is recognized for temporary differences arising between the tax bases of assets and liabilities and their carrying amounts as expected tax consequences at the recovery or settlement of the carrying amounts of the assets and liabilities. However, deferred tax assets and liabilities are not recognized if they arise 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. Deferred tax assets are recognized only if it is probable that future taxable amount will be available to utilize those temporary differences and losses. Deferred tax liability is recognized for taxable temporary differences associated with investments in subsidiaries, associates, and interests in joint ventures, except to the extent that the Group is able to control the timing of the reversal of the temporary difference and it is probable that the temporary difference will not reverse in the foreseeable future. In addition, deferred tax asset is recognized for deductible temporary differences arising from such investments to the extent that it is probable the temporary difference will reverse in the foreseeable future and taxable profit will be available against which the temporary difference can be utilized. Deferred tax assets and liabilities are offset when there is a legally enforceable right to offset current tax assets against current tax liabilities and when the deferred income taxes assets and liabilities relate to income taxes levied by the same taxation authority on either the same taxable entity or different taxable entities where there is an intention to settle the balances on a net basis.
Dividend |
| 2.27 | Dividend
Dividend distribution to the Group’s shareholders is recognized as a liability in the financial statements in the period in which the dividends are approved by the Group’s shareholders.
Approval of Issuance of the Financial Statements |
| 2.28 | Approval of Issuance of the Financial Statements
The issuance of the December 31, 2017 consolidated financial statements of the Group was approved by the Board of Directors on April 27, 2018.

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- Definition The description of the entity's accounting policy for interest and other costs that the entity incurs in connection with the borrowing of funds. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_117_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The description of the entity's accounting policy for derivative financial instruments. [Refer: Financial instruments, class [member]; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_117_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The description of the entity's accounting policy for dividends. Dividends are distributions of profits to holders of equity investments in proportion to their holdings of a particular class of capital. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_117_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The description of the entity's accounting policy for employee benefits. Employee benefits are all forms of consideration given by an entity in exchange for services rendered by employees or for the termination of employment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_117_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The description of the entity's accounting policy for financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_117_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The description of the entity's accounting policy for financial guarantees. [Refer: Guarantees [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_117_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The description of the entity's accounting policy for financial liabilities. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_117_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The description of the entity's accounting policy for foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_117_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The description of the entity's accounting policy for government grants, including the methods of presentation adopted in the financial statements. [Refer: Government [member]; Government grants] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 20 -IssueDate 2017-01-01 -Paragraph 39 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=20&date=2017-03-01&anchor=para_39_a&doctype=Standard -URIDate 2017-03-09 + Details
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