| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 233.07 | USD | 20251202 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 190.69 | USD | 20251202 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 444.95 | USD | 20251202 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.57 | USD | 20251202 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.51 | USD | 20251202 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 183.63 | USD | 20251202 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.62 | USD | 20251202 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 186.46 | USD | 20251202 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.26 | USD | 20251202 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 254.26 | USD | 20251202 |