| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 1003.77 | USD | 20251204 |
| Zibo Jinshuo Chem | China national standards | MT | 848.26 | USD | 20251204 |
| Jinan Jinhao Chem | China national standards | MT | 1244.12 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1102.74 | USD | 20251204 |
| Beijing Yanshan Petro | China national standards | MT | 841.19 | USD | 20251204 |
| Qingdao Shengze Chem | China national standards | MT | 819.99 | USD | 20251204 |
| Shanghai Wanzhong | China national standards | MT | 819.99 | USD | 20251204 |
| Shandong Xingpeng Chem | China national standards | MT | 883.6 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1109.81 | USD | 20251204 |