| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 190.61 | USD | 20251125 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 197.67 | USD | 20251125 |
| Anhui Haozhan Environmental Protection Technology Co., Ltd. | China national standards | MT | 204.73 | USD | 20251125 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 183.55 | USD | 20251125 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.55 | USD | 20251125 |
| Henan Baoxin Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.49 | USD | 20251125 |
| Henan Baoxin Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.49 | USD | 20251125 |
| Henan Baiquan Pharmaceutical Co., Ltd. | China national standards | MT | 166.61 | USD | 20251125 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 148.25 | USD | 20251125 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.55 | USD | 20251125 |