Annual Report 2021

合豐集團控股有限公司 • 二零二一年年報 69 INDEPENDENT AUDITOR’S REPORT (CONTINUED) 獨立核數師報告（續） 關鍵審核事項 （續） KEY AUDIT MATTER (Continued) How our audit addressed the key audit matter 本核數師行在審核過程中如何處理關鍵審核 事項 Our procedures in relation to the impairment assessment on property, plant and equipment relating to the containerboard segment included: • Obtaining an understanding of the valuation process, obtaining the valuation report from management, and evaluating the competence, capabilities and objectivity of the valuer; • Engaging our internal valuation specialists to perform the following procedures: – Evaluating the appropriateness of the valuation methodologies and techniques used by the management and the valuer; – Assessing the reasonableness and relevance of key assumptions and inputs, in particular the discount rate; – Checking the mathematical accuracy of the fair value calculations; and • Evaluate the reasonableness and relevance of key assumptions, in particular, (i) the success of obtaining the approval from the relevant government bureau for the renewal of licences after completion of the change to gas-fuel boilers in order to resume the production relating to the containerboard segment by conducting an interview with the government officer; and (ii) the expected sales volume of the containerboard segment after resumption of production by checking the historical utilisation rate of the production plant and reviewing the researches performed by the valuer on the expected growth of the future market; and • Evaluating the management’s sensitivity analysis in respect of the discount rate and the expected sales volume of the containerboard segment after resumption of production to assess the extent of impact on the calculation of the value-in-use. 本核數師行就箱板紙分部的物業、廠房及設 備作出的減值評估程序包括： • 了解估值過程、向管理層獲取估值報告 及評估估值師的資格、能力及客觀性； • 聘請本核數師行的內部估值專員進行以 下程序： － 評估管理層及估值師使用的估值 方法及技術的合適性； － 評估關鍵假設及輸入數據的合理 性及相關性，尤其是貼現率； － 檢查公平值計算的數學準確性； 及 • 評估關鍵假設的合理性及相關性，尤其 是 (i) 就完成改用燃氣鍋爐後成功取得相 關政府當局批准重續牌照與政府人員進 行面談以使箱板紙分部恢復生產；及 (ii) 就箱板紙分部於恢復生產後的預期銷量 透過檢查生產廠房的歷史使用率及審閱 估值師對未來市場預期增長所進行之研 究；及 • 評估管理層對貼現率及箱板紙分部於恢 復生產後的預期銷量有關的敏感度分 析，以評估該等因素對使用價值計算的 影響程度。