| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 233.14 | USD | 20251209 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 200.64 | USD | 20251209 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 186.51 | USD | 20251209 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.56 | USD | 20251209 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.82 | USD | 20251209 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 176.62 | USD | 20251209 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 155.43 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 190.75 | USD | 20251209 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 200.64 | USD | 20251209 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 211.95 | USD | 20251209 |