| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 536.12 | USD | 20251031 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 124.18 | USD | 20251030 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 536.24 | USD | 20251030 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 536.3 | USD | 20251028 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 124.2 | USD | 20251028 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 124.15 | USD | 20251027 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 535.75 | USD | 20251024 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 124.09 | USD | 20251023 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 535.83 | USD | 20251023 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 535.74 | USD | 20251021 |