| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 240.27 | USD | 20251210 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 445.21 | USD | 20251210 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 148.4 | USD | 20251210 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 183.74 | USD | 20251210 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.6 | USD | 20251210 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 183.74 | USD | 20251210 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 233.21 | USD | 20251210 |
| Anhui Haozhan Environmental Protection Technology Co., Ltd. | China national standards | MT | 204.94 | USD | 20251210 |
| Shandong Haihua Co., Ltd. | China national standards | MT | 169.6 | USD | 20251210 |
| Shandong Haihua Co., Ltd. | China national standards | MT | 254.41 | USD | 20251210 |