| Vendor | Spec | Unit | Price | Currency | Date |
| Tangshan Sanyou | China national standards | MT | 183.69 | USD | 20251209 |
| Jinan Jinrihe Chem | China national standards | MT | 169.56 | USD | 20251209 |
| Hubei Shuanghuan Tech | China national standards | MT | 165.32 | USD | 20251209 |
| Shanghai SKY Chem | China national standards | MT | 209.12 | USD | 20251209 |
| Henan Leavit Chem | China national standards | MT | 162.49 | USD | 20251209 |
| Henan Leavit Chem | China national standards | MT | 148.36 | USD | 20251209 |
| Hubei Shuanghuan Tech | China national standards | MT | 233.14 | USD | 20251209 |
| Henan Sendi EnvTech | China national standards | MT | 202.05 | USD | 20251209 |
| Tangshan Sanyou | China national standards | MT | 183.71 | USD | 20251208 |
| Henan Leavit Chem | China national standards | MT | 162.51 | USD | 20251208 |