*ST清研：公司目前未持有矿产资产

Core Viewpoint - The company, ST Qingyan (301288.SZ), does not currently hold any mineral assets and focuses on hazardous waste disposal services and metal resource recovery [1] Group 1: Company Operations - The company's resource utilization business is primarily conducted through its subsidiary, Fujian Tonghai Nickel Industry Technology Co., Ltd., which collects and disposes of hazardous waste from enterprises [1] - The company employs mature pyrometallurgical processes to treat various industrial solid wastes containing metals such as nickel, chromium, copper, and iron, ensuring harmless disposal and recovery of metal resources [1] - The company produces alloy metals and other resource products for external sales [1]