Re-measuring Inventory Write-downs at XX Technology

You are a member of an accounting firm's engagement team. XX Semiconductor Technology Co., Ltd. (STAR Market) saw both inventory and its inventory write-down allowance rise sharply in FY2023. The company has explained in writing the composition and ageing of each inventory item, how net realizable value was determined and how the write-down was computed by product model; the annual report notes disclose inventory by category and the movement of the write-down allowance. A special report on the measurement and presentation of the write-down is required, and you are responsible for the quantitative part.

The company's own explanation is a management representation, not independent audit evidence; the procedures and conclusions in the auditor's or sponsor's documents are. All data needed is in these files; this prompt repeats no amounts.

The question

Were the FY2023 write-down charge, its effect on profit and the year-end presentation measured and presented on a proper basis? Re-measured on a proper basis, what are the following amounts?

• The inventory write-down loss charged to profit in 2023;
• The reduction of the allowance from reversals or write-offs;
• The difference between that charge and the total of the company's by-product-model write-down table;
• The total write-down re-computed by ageing band for all inventory other than raw materials, using the company's disclosed NRV ratios per ageing band;
• The year-end carrying amount of work in progress and goods under processing combined;
• The year-end carrying amount of finished goods and goods shipped combined.