| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 194.8 | USD | 20251029 |
| Shandong Haitian Bio | China national standards | MT | 179.27 | USD | 20251029 |
| Shandong Hanyue Chem | China national standards | MT | 190.56 | USD | 20251029 |
| Henan Huiyihai | China national standards | MT | 176.45 | USD | 20251029 |
| Shandong Jinshenrun Chem | China national standards | MT | 183.5 | USD | 20251029 |
| Shandong Haihua | China national standards | MT | 183.5 | USD | 20251029 |
| Tongdai Haijing Soda | China national standards | MT | 169.39 | USD | 20251029 |
| Suzhou Shangma Chem | China national standards | MT | 211.74 | USD | 20251029 |
| Haohua Junhua | China national standards | MT | 153.86 | USD | 20251029 |
| Henan Baiquan | China national standards | MT | 166.57 | USD | 20251029 |