| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 889.29 | USD | 20251029 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1129.26 | USD | 20251029 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 889.13 | USD | 20251028 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 931.47 | USD | 20251028 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1129.05 | USD | 20251028 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 931.14 | USD | 20251027 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 888.81 | USD | 20251027 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1128.65 | USD | 20251027 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 888.22 | USD | 20251024 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1099.71 | USD | 20251024 |