| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 888.76 | USD | 20251104 |
| Shandong Qiangsen Chem | China national standards | MT | 931.09 | USD | 20251104 |
| Qingdao Shengze Chem | China national standards | MT | 888.76 | USD | 20251104 |
| Beijing Yanshan Petro | China national standards | MT | 902.87 | USD | 20251104 |
| Shandong Hongyang Chem | China national standards | MT | 907.1 | USD | 20251104 |
| Shandong Junfeng | China national standards | MT | 987.51 | USD | 20251104 |
| Jinan Angxin Chem | China national standards | MT | 945.19 | USD | 20251104 |
| Shandong Junfeng | China national standards | MT | 1058.05 | USD | 20251104 |
| Shanghai Guoke | China national standards | MT | 1280.95 | USD | 20251104 |
| Beijing Yanshan Petro | China national standards | MT | 987.51 | USD | 20251104 |