| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 904.48 | USD | 20251201 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 904.1 | USD | 20251129 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 904.1 | USD | 20251128 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 932.35 | USD | 20251128 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1130.12 | USD | 20251128 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1002.98 | USD | 20251128 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 904.22 | USD | 20251127 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1003.12 | USD | 20251127 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 932.48 | USD | 20251127 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1130.28 | USD | 20251127 |