| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chem | China national standards | MT | 493.85 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 529.12 | USD | 20251119 |
| Satellite Chem | China national standards | MT | 544.64 | USD | 20251119 |
| Sinopec | China national standards | MT | 571.45 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 529.12 | USD | 20251119 |
| Shandong Fusheng | China national standards | MT | 507.96 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 529.12 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 529.12 | USD | 20251119 |
| Sinopec | China national standards | MT | 620.84 | USD | 20251119 |
| Shandong Fusheng | China national standards | MT | 507.96 | USD | 20251119 |