Annual Report 2021

192 Sunny Optical Technology (Group) Company Limited • ANNUAL REPORT 2021 Notes to the Consolidated Financial Statements 綜合財務報表附註 FOR THE YEAR ENDED 31 DECEMBER 2021 截至二零二一年十二月三十一日止年度 3. BASIS OF PREPARATION OF CONSOLIDATED FINANCIAL STATEMENTS AND SIGNIFICANT ACCOUNTING POLICIES (Continued) 3.2 Significant accounting policies (Continued) Financial instruments (Continued) Financial assets (Continued) Impairment of financial assets (Continued) (ii) Definition of default For internal credit risk management, the Group considers an event of default occurs when information developed internally or obtained from external sources indicates that the debtor is unlikely to pay its creditors, including the Group, in full (without taking into account any collaterals held by the Group). Irrespective of the above, the Group considers that default has occurred when a financial asset is more than 90 days past due unless the Group has reasonable and supportable information to demonstrate that a more lagging default criterion is more appropriate. (iii) Credit-impaired financial assets A financial asset is credit-impaired when one or more events that have a detrimental impact on the estimated future cash flows of that financial asset have occurred. Evidence that a financial asset is credit-impaired includes observable data about the following events: (a) significant financial difficulty of the issuer or the borrower; (b) a breach of contract, such as a default or past due event; 3. 綜合財務報表之編製基準及 重要會計政策（續） 3.2 重要會計政策（續） 金融工具（續） 金融資產（續） 金融資產減值（續） (ii) 違約的定義 就內部信貸風險管理而言，本集團 認為違約乃於內部建立或外部來源 獲取的資料顯示債務人不大可能向 債權人（包括本集團）全額結清欠 款時發生（並無考慮任何本集團持 有的抵押品）。 不論上述情況如何，當金融資產逾 期超過 90 天時，本集團即認為已 發生違約，除非本集團有合理及可 靠資料證明應採用更寬鬆的違約標 準。 (iii) 信貸減值的金融資產 當一件或多件對一項金融資產估計 未來現金流量產生不利影響的事件 發生時，該金融資產則出現信貸減 值。金融資產出現信貸減值的證據 包括有關以下事項的可觀察數據： (a) 發行人或借款人出現重大財政 困難； (b) 不履行債務或逾期支付等違約 行為；