万业企业：主要通过向市场贸易商及生产商采购精铋和粗铋来获取铋原料

Group 1 - The company primarily sources bismuth raw materials, including high-purity bismuth (not less than 99.99% bismuth content) and crude bismuth, from market traders and producers [2] - In the deep processing segment of bismuth, the company leverages the advantages of its controlling shareholder in terms of raw material costs and resources to obtain competitively priced raw materials [2]