| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Lishuo Chem | China national standards | MT | 847.78 | USD | 20251209 |
| Jinan Aochen Chem | China national standards | MT | 960.82 | USD | 20251209 |
| Wanhua Chem | China national standards | MT | 1031.47 | USD | 20251209 |
| Wanhua Chem | China national standards | MT | 1073.86 | USD | 20251209 |
| Shandong Yaoming Chem | China national standards | MT | 833.65 | USD | 20251209 |
| Shandong Jinwen Chem | China national standards | MT | 989.08 | USD | 20251209 |
| Shandong Xima | China national standards | MT | 791.26 | USD | 20251209 |
| Shandong Qiangsen Chem | China national standards | MT | 819.63 | USD | 20251208 |
| Changzhou Qidi Chem | China national standards | MT | 890.28 | USD | 20251208 |
| Shandong Kaitai Petro | China national standards | MT | 918.55 | USD | 20251208 |