| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 189.73 | USD | 20250928 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 224.87 | USD | 20250928 |
| Anhui Haozhan Environmental Protection Technology Co., Ltd. | China national standards | MT | 210.82 | USD | 20250928 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 203.79 | USD | 20250928 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 210.82 | USD | 20250928 |
| Henan Lanen Chemical Co., Ltd. | China national standards | MT | 177.09 | USD | 20250928 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.68 | USD | 20250928 |
| Henan Baoxin Environmental Protection Technology Co., Ltd. | China national standards | MT | 189.73 | USD | 20250928 |
| Henan Baiquan Pharmaceutical Co., Ltd. | China national standards | MT | 189.73 | USD | 20250928 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 210.82 | USD | 20250927 |