| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 804.8 | USD | 20251115 |
| Shandong Wonfull Petro | China national standards | MT | 847.16 | USD | 20251114 |
| Shandong Yushuo Chem | China national standards | MT | 741.26 | USD | 20251114 |
| Shandong QiFa Chem | China national standards | MT | 889.52 | USD | 20251114 |
| Jinan Aochen Chem | China national standards | MT | 847.16 | USD | 20251114 |
| Zibo Qixiang Chem | China national standards | MT | 847.16 | USD | 20251114 |
| Changzhou Qidi Chem | China national standards | MT | 748.32 | USD | 20251114 |
| Changzhou Qidi Chem | China national standards | MT | 748.32 | USD | 20251114 |
| Jinan Aochen Chem | China national standards | MT | 847.16 | USD | 20251114 |
| Shijiaz Bailong Chem | China national standards | MT | 847.16 | USD | 20251114 |