| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 875.01 | USD | 20251118 |
| Shandong Shuojia Chem | China national standards | MT | 931.47 | USD | 20251118 |
| Lihuayi Weiyuan Chem | China national standards | MT | 994.98 | USD | 20251118 |
| Beijing Yanshan Petro | China national standards | MT | 917.35 | USD | 20251118 |
| Sinopec | China national standards | MT | 994.98 | USD | 20251118 |
| Shandong Xima | China national standards | MT | 889.13 | USD | 20251118 |
| Shandong Xima | China national standards | MT | 889.13 | USD | 20251118 |
| Shanghai Guoke | China national standards | MT | 1281.47 | USD | 20251118 |
| Shandong Jinshenrun Chem | China national standards | MT | 987.92 | USD | 20251118 |
| Lihuayi Weiyuan Chem | China national standards | MT | 931.47 | USD | 20251118 |