| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 201.74 | USD | 20251104 |
| Henan Sendi EnvTech | China national standards | MT | 194.68 | USD | 20251104 |
| Henan Baoxin Tech | China national standards | MT | 176.34 | USD | 20251104 |
| Henan Baiquan | China national standards | MT | 176.34 | USD | 20251104 |
| Henan Baoxin Tech | China national standards | MT | 176.34 | USD | 20251104 |
| Hubei Shuanghuan Tech | China national standards | MT | 183.4 | USD | 20251104 |
| Tongdai Haijing Soda | China national standards | MT | 183.4 | USD | 20251104 |
| Shandong Jinshenrun Chem | China national standards | MT | 183.4 | USD | 20251104 |
| Shandong Haihua | China national standards | MT | 211.61 | USD | 20251104 |
| Shandong Haihua | China national standards | MT | 253.93 | USD | 20251104 |