| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Shunzhibang | China national standards | MT | 254.33 | USD | 20251209 |
| Hubei Shuanghuan Tech | China national standards | MT | 190.75 | USD | 20251209 |
| Tangshan Sanyou | China national standards | MT | 183.69 | USD | 20251209 |
| Henan Junma Chem | China national standards | MT | 176.62 | USD | 20251209 |
| Henan Sendi EnvTech | China national standards | MT | 202.05 | USD | 20251209 |
| Henan Leavit Chem | China national standards | MT | 173.8 | USD | 20251209 |
| Henan Sendi EnvTech | China national standards | MT | 202.05 | USD | 20251209 |
| Henan Leavit Chem | China national standards | MT | 445.08 | USD | 20251209 |
| Henan Leavit Chem | China national standards | MT | 159.67 | USD | 20251209 |
| Henan Leavit Chem | China national standards | MT | 148.36 | USD | 20251209 |