| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1194.11 | USD | 20251208 |
| Shandong Hongyang Chem | China national standards | MT | 1194.11 | USD | 20251208 |
| CNPC | China national standards | MT | 1215.31 | USD | 20251208 |
| Sinopec | China national standards | MT | 1215.31 | USD | 20251208 |
| Shandong Zhiheng | China national standards | MT | 1172.91 | USD | 20251208 |
| Shandong Huize Chem | China national standards | MT | 1059.86 | USD | 20251208 |
| Aite Zhejiang | China national standards | MT | 1158.78 | USD | 20251208 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1328.36 | USD | 20251208 |
| Aite Zhejiang | China national standards | MT | 1314.23 | USD | 20251208 |
| Lihuayi Shandong | China national standards | MT | 989.2 | USD | 20251208 |