Annual Report 2021

FOR THE YEAR ENDED 31 DECEMBER 2021 截至二零二一年十二月三十一日止年度 173 年報 2021 ANNUAL REPORT NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS 綜合財務報告附註 4 重大會計估計和判斷 （續） (b) 物業、廠房及設備及土地使用權 減值評估 （續） 計算需要使用判斷和估計。資產減 值部分需要管理層的判斷進行，特 別是在評估時： (i) 是否發生了可能 表明相關資產價值無法收回的事 件； (ii) 資產的賬面值是否可以由可 收回金額支援，即公平值減去出售 成本與未來現金流量淨現值之間的 較高者，而該等現金流量乃根據業 務持續使用該資產而估計；及 (iii) 在 編制現金流量預測時應採用的適當 關鍵假設，包括這些現金流量預測 是否以適當的利率貼現。管理層在 評估減值時更改所選擇的假設，包 括現金流量預測中的鋼簾線價格年 增長率或貼現率的假設，可能會影 響減值測試中使用的淨現值，從而 影響本集團的財務狀況和營運業績。 (c) 應收款項減值 本集團根據對違約風險和預期損失 率的假設，對應收賬款計提減值損 失撥備。本集團根據本集團過往歷 史，現有市況及每個報告期末的前 瞻性估計，使用判斷作出該等假設 及選擇預期信貸虧損撥備計算的輸 入數據。關於所使用的主要假設及 輸入數據在附註 3.1(b) 表內披露。 4 CRITICAL ACCOUNTING ESTIMATES AND JUDGEMENTS (continued) (b) Impairment assessments of property, plant and equipment and land use rights (continued) The calculations require the use of judgements and estimates. Management’s judgement is required in the area of asset impairment particularly in assessing: (i) whether an event has occurred that may indicate that the related asset values may not be recoverable; (ii) whether the carrying amount of an asset can be supported by the recoverable amount, being the higher of fair value less costs to sell and net present value of future cash flows which are estimated based upon the continued use of the asset in the business; and (iii) the appropriate key assumptions to be applied in preparing cash flow projections including whether these cash flow projections are discounted using an appropriate rate. Changing the assumptions selected by management in assessing impairment, including the rate of annual increment for the steel cord price or the discount rates assumptions in the cash flow projections, could affect the net present value used in the impairment test and as a result affect the Group’s financial position and results of operations. (c) Impairment of trade receivables The Group makes provision for impairment loss on trade receivables based on assumptions about risk of default and expected loss rates. The Group uses judgement in making these assumptions and selecting the inputs to the expected credit losses allowance calculation, based on the Group’s past history, existing market conditions as well as forward-looking estimates at the end of each reporting period. Details of the key assumptions and inputs used are disclosed in the tables in Note 3.1(b).