| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 268.54 | USD | 20251210 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 226.14 | USD | 20251210 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 303.87 | USD | 20251210 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 353.24 | USD | 20251209 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 254.33 | USD | 20251209 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 310.85 | USD | 20251209 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 226.07 | USD | 20251209 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 353.24 | USD | 20251209 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.75 | USD | 20251209 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 226.07 | USD | 20251209 |