| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 534.41 | USD | 20250922 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 168.76 | USD | 20250922 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 123.76 | USD | 20250922 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 123.76 | USD | 20250922 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 161.73 | USD | 20250922 |
| Henan Kaijie Water Treatment Co., Ltd. | China national standards | MT | 123.76 | USD | 20250922 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 161.73 | USD | 20250922 |
| Weifang Shuoxin Chemical Co., Ltd. | China national standards | MT | 106.88 | USD | 20250922 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 112.51 | USD | 20250922 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 168.76 | USD | 20250922 |