| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1114.64 | USD | 20251121 |
| Shanghai Guoke | China national standards | MT | 1281.13 | USD | 20251121 |
| Shandong Aite Chem | China national standards | MT | 1241.62 | USD | 20251121 |
| Lihuayi Weiyuan Chem | China national standards | MT | 931.22 | USD | 20251121 |
| Shandong Shuojia Chem | China national standards | MT | 931.22 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1107.58 | USD | 20251121 |
| Shandong Qiangsen Chem | China national standards | MT | 931.22 | USD | 20251121 |
| Beijing Yanshan Petro | China national standards | MT | 1058.2 | USD | 20251121 |
| Hubei 789 Chem | China national standards | MT | 987.65 | USD | 20251121 |
| Shiyou Yangzhou Chem | China national standards | MT | 888.89 | USD | 20251121 |