| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Shandong | China national standards | MT | 1326.28 | USD | 20251122 |
| Sinopec | China national standards | MT | 895.94 | USD | 20251122 |
| Zibo Lishuo Chem | China national standards | MT | 987.65 | USD | 20251122 |
| Lihuayi Shandong | China national standards | MT | 907.23 | USD | 20251122 |
| Sinopec | China national standards | MT | 1248.68 | USD | 20251122 |
| Shaanxi Yanchang Petro | China national standards | MT | 895.94 | USD | 20251122 |
| Sinopec | China national standards | MT | 1227.51 | USD | 20251122 |
| Zibo Lishuo Chem | China national standards | MT | 987.65 | USD | 20251122 |
| Shandong Aite Chem | China national standards | MT | 1227.51 | USD | 20251121 |
| Shandong Hongyang Chem | China national standards | MT | 1192.24 | USD | 20251121 |