| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 254.42 | USD | 20251207 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.75 | USD | 20251207 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 212.02 | USD | 20251207 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 176.68 | USD | 20251207 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 212.02 | USD | 20251207 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.72 | USD | 20251207 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 183.75 | USD | 20251207 |
| Sichuan Hebang Biotechnology Co., Ltd. | China national standards | MT | 233.22 | USD | 20251206 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 202.12 | USD | 20251206 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.82 | USD | 20251206 |