| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 857.87 | USD | 20250922 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 900.06 | USD | 20250922 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 956.32 | USD | 20250922 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1026.64 | USD | 20250922 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1026.32 | USD | 20250920 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 899.79 | USD | 20250919 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 857.61 | USD | 20250919 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1096.61 | USD | 20250919 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1026.32 | USD | 20250919 |
| Henan Saiteng Environmental Protection Technology Co., Ltd. | 85% | MT | 1124.73 | USD | 20250919 |