| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 353.31 | USD | 20251201 |
| Shandong Yihe Chem | China national standards | MT | 233.19 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 282.65 | USD | 20251201 |
| Shanghai Guoke | China national standards | MT | 459.31 | USD | 20251201 |
| Wuhan Hengjiu Chem | China national standards | MT | 240.25 | USD | 20251201 |
| Shandong Jinling Chem | China national standards | MT | 268.52 | USD | 20251201 |
| Wuhan Hengjiu Chem | China national standards | MT | 240.25 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 360.38 | USD | 20251201 |
| Shandong Jinling Chem | China national standards | MT | 240.25 | USD | 20251201 |
| Shandong Hongshuo Chem | China national standards | MT | 254.38 | USD | 20251201 |