Core Viewpoint - The company, Yunnan Yunwei Co., Ltd., has conducted an inventory impairment test for its coal inventory, resulting in a provision for inventory impairment of 10.8561 million yuan, which is 33.86% of the inventory's carrying amount [1][2][4]. Inventory Analysis - The year-end inventory balance is 32.0628 million yuan, with an inventory turnover period of approximately 21 days, which has significantly decreased compared to previous years [1][4]. - The inventory consists mainly of chemical coal (silicon coal) and cement coal (smoky coal), with the company providing a detailed breakdown of inventory composition and impairment testing processes [2][4]. Impairment Testing Process - The company uses the lower of cost or net realizable value method for inventory impairment testing, with the net realizable value based on market sales prices determined through market inquiries [4][5]. - The impairment provision calculation includes a detailed assessment of market prices and sales costs, resulting in a net realizable value of 21.2067 million yuan for the year-end inventory [1][4]. Market Conditions - The coal market has experienced cyclical price fluctuations in 2023, with no significant sustained declines observed, indicating that the company's inventory does not show obvious impairment signs [4][5]. - The company has engaged in market inquiries with key suppliers to ensure the accuracy of the pricing used for impairment testing, confirming that the prices align with market trends [2][4]. Inventory Turnover Justification - The company maintains a low inventory turnover period due to its business model, which includes a sales-based procurement strategy that minimizes inventory holding risks associated with price fluctuations [5][6]. - The inventory turnover days for the company are 17.79 days and 17.34 days for 2023 and 2024, respectively, which are slightly above the average of comparable companies, indicating a reasonable inventory management strategy [5][6].