Annual Report 2019

155 年報 ANNUAL REPORT 2019 NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS 綜合財務報告附註 FOR THE YEAR ENDED 31 DECEMBER 2019 截至二零一九年十二月三十一日止年度 2 重大會計政策概要 （續） 2.14 金融工具抵銷 倘若存在法定可執行的權利以抵銷 所確認金額及擬按淨額基準結算或 變現資產及同時結算負債，則金融 資產與負債相互抵銷，而淨額於綜 合財務狀況表內呈報。法定可執行 權利必須不得依賴未來事件而定， 而在一般業務過程中以及倘本公 司或對手方一旦出現違約、無償債 能力或破產時，這也必須具有約束 力。 2.15 存貨 原材料、在製品和製成品以成本值 及可變現淨值兩者中較低者列賬， 成本包括直接材料、直接人工和適 當比例的可變和固定間接費用，後 者根據正常運營能力進行分配。成 本根據加權平均成本分配給各個庫 存項目。購買庫存的成本在扣除回 扣和折扣後確定。可變現淨值為日 常業務過程中的估計售價減去估計 完工成本及進行銷售所需的估計成 本。 2 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (continued) 2.14Offsetting financial instruments Financial assets and liabilities are offset and the net amount reported in the consolidated statement of financial position when there is a legally enforceable right to offset the recognised amounts and there is an intention to settle on a net basis or realise the asset 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 company or the counterparty. 2.15 Inventories Raw materials, work in progress and finished goods are stated at the lower of cost and net realisable value. Cost comprises direct materials, direct labour and an appropriate proportion of variable and fixed overhead expenditure, the latter being allocated on the basis of normal operating capacity. Costs are assigned to individual items of inventory on the basis of weighted average costs. Costs of purchased inventory are determined after deducting rebates and discounts. Net realisable value is the estimated selling price in the ordinary course of business less the estimated costs of completion and the estimated costs necessary to make the sale.