| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Xingdate Bio | China national standards | MT | 989.64 | USD | 20251204 |
| Beijing Yanshan Petro | China national standards | MT | 909.05 | USD | 20251204 |
| Qingdao Shengze Chem | China national standards | MT | 834.12 | USD | 20251204 |
| Shandong Jinshenrun Chem | China national standards | MT | 975.5 | USD | 20251204 |
| Shandong Shuojia Chem | China national standards | MT | 933.09 | USD | 20251204 |
| Hubei 789 Chem | China national standards | MT | 989.64 | USD | 20251204 |
| Qingdao Shengze Chem | China national standards | MT | 834.12 | USD | 20251204 |
| Shandong Qiangsen Chem | China national standards | MT | 933.09 | USD | 20251204 |
| Qingdao Shengze Chem | China national standards | MT | 834.12 | USD | 20251204 |
| Hubei 789 Chem | China national standards | MT | 989.64 | USD | 20251204 |