| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.86 | USD | 20251011 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 534.85 | USD | 20251010 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.86 | USD | 20251010 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 534.44 | USD | 20251009 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.77 | USD | 20251009 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.77 | USD | 20251009 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 534.8 | USD | 20250930 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.85 | USD | 20250930 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 534.8 | USD | 20250930 |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.79 | USD | 20250929 |