Audit Report - The audit opinion states that the financial statements of Cayman Aluminum (Sanmenxia) Co., Ltd. fairly reflect the company's financial position and results of operations for the years ending December 31, 2022, 2023, 2024, and the period from January to April 2025 [1][2]. Financial Statements - The financial statements include consolidated and parent company balance sheets, income statements, cash flow statements, and changes in equity for the specified periods [1]. - The company reported revenues of RMB 23,744.36 million, RMB 25,162.85 million, and projected revenues for 2024 and 2025 [3][4]. Key Audit Matters - Revenue recognition is identified as a key audit matter due to the significant management judgment involved and the inherent risk of inappropriate revenue recognition to meet targets [4][5]. - Inventory net realizable value is also a key audit matter, with significant management estimates impacting the valuation of inventory [5][6]. Management Responsibilities - Management is responsible for preparing financial statements in accordance with accounting standards and ensuring the effectiveness of internal controls to prevent material misstatements due to fraud or error [7][8]. Company Overview - Cayman Aluminum (Sanmenxia) Co., Ltd. was established on June 9, 2003, with a registered capital of RMB 3,967.87 million, operating in the non-ferrous metal smelting and rolling processing industry [10]. - The company primarily engages in the production and sale of alumina, electrolytic aluminum, caustic soda, and gallium [10]. Accounting Policies - The financial statements are prepared based on the going concern assumption, with no significant doubts regarding the company's ability to continue operations in the next 12 months [10]. - The company follows specific accounting policies for financial instruments, inventory, fixed assets depreciation, and revenue recognition [10][11].

Audit Opinion - The audit report states that the financial statements of Hangzhou Bicheng Digital Technology Co., Ltd. fairly reflect the company's financial position as of December 31, 2023, and December 31, 2024, in accordance with accounting standards [1][2]. Key Audit Matters - Revenue recognition is identified as a key audit matter due to the inherent risk of management potentially using inappropriate revenue recognition to meet specific targets. The reported revenue for the periods is CNY 1,281,217,347.12 and CNY 1,362,754,567.32 [3][4]. - The company’s inventory net realizable value is also a key audit matter, with inventory balances of CNY 272,350,329.21 and CNY 373,586,813.27 as of the respective dates. The determination of this value involves significant management judgment [5]. Management Responsibilities - The management of the company is responsible for preparing the financial statements in accordance with accounting standards and maintaining necessary internal controls to prevent material misstatements due to fraud or error [6][7]. Financial Reporting Basis - The financial statements are prepared based on the assumption of going concern, indicating that the company does not have significant doubts about its ability to continue operations for the foreseeable future [10][12]. Company Overview - Hangzhou Bicheng Digital Technology Co., Ltd. was established as a limited liability company and transformed into a joint-stock company in 2020. The company primarily provides comprehensive e-commerce operation services for brand owners [9][10]. Consolidation Scope - The financial statements include 35 subsidiaries, reflecting the company's extensive operational structure [11]. Accounting Policies - The company employs various accounting policies and estimates, including those related to revenue recognition, inventory valuation, and financial instruments, ensuring compliance with relevant accounting standards [12][24].

Audit Opinion - The audit report states that the financial statements of Juchip Technology Co., Ltd. fairly reflect its financial position as of December 31, 2024, and its operating results and cash flows for the year 2024 [2][3]. Revenue Recognition - Juchip Technology's revenue for 2024 was RMB 651,875,446.08, with the smart wireless audio SoC chip series contributing RMB 486,274,023.59, accounting for 74.60% of total revenue. The portable audio-video SoC chip series and edge AI processor chip series contributed 12.70% and 12.58% respectively [3][4]. - Revenue recognition is identified as a key audit matter due to the inherent risk of management potentially using inappropriate revenue recognition practices to meet specific targets [3][4]. Inventory Valuation - As of December 31, 2024, Juchip Technology's inventory balance was significant, and the net realizable value of inventory is determined based on estimated selling prices minus estimated costs to complete and sell [5][24]. - The determination of the net realizable value of inventory is also classified as a key audit matter due to the significant management judgment involved [5][24]. Company Overview - Juchip Technology Co., Ltd. was established on June 5, 2014, and is headquartered in Zhuhai, Guangdong Province. The company specializes in the research, production, and sales of mid-to-high-end smart audio SoC chips [9][11]. - The company has a registered capital of RMB 146,136,404 and is publicly traded on the Shanghai Stock Exchange since November 29, 2021 [9][11]. Financial Reporting Basis - The financial statements are prepared based on the assumption of going concern, indicating that the company does not have significant doubts about its ability to continue operations for the next 12 months [11][12]. Key Accounting Policies - The company adheres to the relevant accounting standards and has established specific accounting policies for financial instruments, inventory, fixed assets, and revenue recognition [11][12][13].