| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 507.72 | USD | 20251120 |
| CNOOC | China national standards | MT | 564.14 | USD | 20251120 |
| Shandong Zhenkun | China national standards | MT | 606.45 | USD | 20251120 |
| Shandong Fusheng | China national standards | MT | 507.72 | USD | 20251120 |
| Jinan Angxin Chem | China national standards | MT | 620.55 | USD | 20251120 |
| Shandong Zhenkun | China national standards | MT | 606.45 | USD | 20251120 |
| Shandong Zhiheng | China national standards | MT | 591.64 | USD | 20251120 |
| Shandong Fusheng | China national standards | MT | 507.72 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 591.64 | USD | 20251120 |
| Sinopec | China national standards | MT | 676.96 | USD | 20251120 |