| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 205.13 | USD | 20251211 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 233.43 | USD | 20251211 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.86 | USD | 20251211 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 183.91 | USD | 20251211 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.65 | USD | 20251211 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 155.62 | USD | 20251211 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 212.21 | USD | 20251211 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 176.84 | USD | 20251211 |
| Shanghai Guoke E-commerce Co., Ltd. | China national standards | MT | 261.72 | USD | 20251211 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 202.3 | USD | 20251211 |