| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chem | China national standards | MT | 381.97 | USD | 20251211 |
| Henan Longyu | China national standards | MT | 304.16 | USD | 20251211 |
| Shandong Shuojia Chem | China national standards | MT | 346.6 | USD | 20251211 |
| Henan Longyu | China national standards | MT | 304.16 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Hualu | China national standards | MT | 396.12 | USD | 20251211 |
| Shandong Hualu | China national standards | MT | 325.38 | USD | 20251211 |
| Shandong Xingpeng Chem | China national standards | MT | 325.38 | USD | 20251211 |
| Shandong Hualu | China national standards | MT | 325.38 | USD | 20251211 |
| Henan Longyu | China national standards | MT | 304.16 | USD | 20251211 |