| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Baoxin Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.37 | USD | 20251119 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 225.76 | USD | 20251119 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 211.65 | USD | 20251119 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.41 | USD | 20251118 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 211.7 | USD | 20251118 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 211.7 | USD | 20251118 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 211.7 | USD | 20251118 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 261.09 | USD | 20251118 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 232.87 | USD | 20251118 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 206.05 | USD | 20251118 |