| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 110.05 | USD | 20251121 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 110.05 | USD | 20251121 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 535.93 | USD | 20251120 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 536.18 | USD | 20251119 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 536.18 | USD | 20251119 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 110.06 | USD | 20251119 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 536.6 | USD | 20251117 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 536.6 | USD | 20251117 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 110.14 | USD | 20251117 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 536.53 | USD | 20251114 |