Group 1 - The company approved a guarantee limit of up to 1.6 billion yuan for the year 2025, with a specific limit of 500 million yuan for Baotou Chang Aluminum [1] - The financing lease business is authorized for a total amount not exceeding 500 million yuan, with the ability to use the amount cyclically within the authorized period [2] - Baotou Chang Aluminum signed a financing lease contract with Jiangsu Financial Leasing Co., Ltd. for a principal amount of 100 million yuan, with a lease term of 24 months [2][3] Group 2 - The company holds 100% equity in Baotou Chang Aluminum, which has total assets of approximately 1.88 billion yuan and net assets of approximately 694.79 million yuan as of March 31, 2025 [7] - Baotou Chang Aluminum reported a total revenue of approximately 899.16 million yuan for the first quarter of 2025, with a net loss of approximately 14.82 million yuan [7] - The company has no overdue guarantees and has provided guarantees only within the scope of consolidated financial statements [8]