Group 1 - The first National Nonferrous Metals Product Quality Brand Cultivation Evaluation results were announced, with Yunnan Tin Company (YTC) winning multiple awards for product quality and brand influence [1] - YTC's "YT" brand tin ingots received the "Excellent Brand" award, while its lead-free tin-based solder, cast tin-lead solder, cathode copper, and zinc ingots were recognized as "Quality Brands" [1] - The evaluation involved 44 companies and 80 products, undergoing rigorous selection processes including expert reviews and committee approvals [1] Group 2 - YTC has established and continuously improved its quality management system, integrating quality control into every production stage to enhance innovation and management levels [2] - The company achieved a 100% pass rate for tin ingots and a 99% A-grade rate for cathode copper, indicating industry-leading performance [2] - YTC employs a comprehensive quality management approach, ensuring zinc ingots have a purity of 99.9968% and a 100% pass rate, maintaining its leading position in the industry [2]