| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying HuataiChem | China national standards | MT | 1102.12 | USD | 20251209 |
| Shandong Mingyu | China national standards | MT | 1257.54 | USD | 20251209 |
| Dongying HuataiChem | China national standards | MT | 1102.12 | USD | 20251209 |
| Befar | China national standards | MT | 890.28 | USD | 20251208 |
| Shandong Junfeng | China national standards | MT | 1201.18 | USD | 20251208 |
| Shandong Zhiheng | China national standards | MT | 1130.52 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1215.31 | USD | 20251208 |
| Wanhua Chem | China national standards | MT | 989.2 | USD | 20251208 |
| Shandong Huize Chem | China national standards | MT | 1049.97 | USD | 20251208 |
| Shandong Jinling Chem | China national standards | MT | 1271.83 | USD | 20251208 |