| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Jiangxi Copper | China national standards | MT | USD | 20250520 | |
| Hunan Minmetals | China national standards | MT | USD | 20250520 | |
| Huaihua Hengguang | China national standards | MT | USD | 20250520 | |
| Lingbao Jincheng | China national standards | MT | USD | 20250520 | |
| Minshan EnviTech | China national standards | MT | USD | 20250520 | |
| Jiyuan JINLI | China national standards | MT | USD | 20250520 | |
| Lingbao LEAD | China national standards | MT | USD | 20250520 | |
| Chenzhou SILVER | China national standards | MT | USD | 20250520 | |
| SZ Zhongjin Nonfemet | China national standards | MT | USD | 20250520 | |
| Jiangsu SOPO | China national standards | MT | USD | 20250520 |
