| Vendor | Spec | Unit | Price | Currency | Date |
| Sinopec | China national standards | MT | 1225.9 | USD | 20251016 |
| Shandong Yuhuang Chem | China national standards | MT | 1366.81 | USD | 20251016 |
| Shandong Aite Chem | China national standards | MT | 1225.9 | USD | 20251016 |
| Lihuayi Shandong | China national standards | MT | 1380.9 | USD | 20251016 |
| Shandong Aite Chem | China national standards | MT | 1197.72 | USD | 20251016 |
| Sinopec | China national standards | MT | 1247.04 | USD | 20251016 |
| Lihuayi Shandong | China national standards | MT | 1244.22 | USD | 20251016 |
| Lihuayi Shandong | China national standards | MT | 1113.18 | USD | 20251016 |
| Jinan Dezheng Chem | China national standards | MT | 908.86 | USD | 20251016 |
| Jinan Dezheng Chem | China national standards | MT | 908.86 | USD | 20251016 |