Page 172 - TSMC 2018 Annual Report

Statement of Compliance
The accompanying consolidated financial statements have been prepared in conformity with the Regulations Governing the Preparation of Financial Reports by Securities Issuers and the IFRSs endorsed by the FSC with the effective dates (collectively, “Taiwan-IFRSs”).
Basis of Preparation
The accompanying consolidated financial statements have been prepared on the historical cost basis except for financial instruments that are measured at fair values, as explained in the accounting policies below. Historical cost is generally based on the fair value of the consideration given in exchange for the assets.
Basis of Consolidation
The basis for the consolidated financial statements
The consolidated financial statements incorporate the financial statements of TSMC and entities controlled by TSMC (its subsidiaries).
Income and expenses of subsidiaries acquired or disposed of are included in the consolidated statement of comprehensive income from the effective date of acquisition and up to the effective date of disposal, as appropriate. Total comprehensive income of subsidiaries is attributed to the shareholders of the parent and to the non-controlling interests even if this results in the non-controlling interests having a deficit balance.
When necessary, adjustments are made to the financial statements of subsidiaries to bring their accounting policies into line with those used by the Company.
All intra-group transactions, balances, income and expenses are eliminated in full on consolidation.
Changes in the Company’s ownership interests in subsidiaries that do not result in the Company losing
control over the subsidiaries are accounted for as equity transactions. The carrying amounts of the Company’s interests and the non-controlling interests are adjusted to reflect the changes in their relative interests in the subsidiaries. Any difference between the amount by which the non-controlling interests are adjusted and the fair value of the consideration paid or received is recognized directly in equity and attributed to shareholders of the parent.
When the Company loses control of a subsidiary, a gain or loss is recognized in profit or loss and is calculated as the difference between:
a. the aggregate of the fair value of consideration received and the fair value of any retained interest at the date when control is lost; and
b. the previous carrying amount of the assets (including goodwill), and liabilities of the subsidiary and any non-controlling interest.
The Company shall account for all amounts recognized in other comprehensive income in relation to the subsidiary on the same basis as would be required if the Company had directly disposed of the related assets and liabilities.
The fair value of any investment retained in the former subsidiary at the date when control is lost is regarded as the cost on initial recognition of an investment in an associate.
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