| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 931.86 | USD | 20251125 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 903.36 | USD | 20251124 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 903.36 | USD | 20251124 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 903.36 | USD | 20251124 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1129.19 | USD | 20251124 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 931.58 | USD | 20251124 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1128.75 | USD | 20251122 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 903.0 | USD | 20251121 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 903.0 | USD | 20251121 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 931.22 | USD | 20251121 |