| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1215.39 | USD | 20251201 |
| Shandong Zhiheng | China national standards | MT | 1173.0 | USD | 20251201 |
| Dongying HuataiChem | China national standards | MT | 1088.2 | USD | 20251201 |
| Dongying HuataiChem | China national standards | MT | 1088.2 | USD | 20251201 |
| Shandong Xingpeng Chem | China national standards | MT | 1081.13 | USD | 20251201 |
| Jinan Pulaihua Chem | China national standards | MT | 1271.92 | USD | 20251201 |
| Shandong Jinling Chem | China national standards | MT | 1384.98 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 1271.92 | USD | 20251201 |
| Dongying HuataiChem | China national standards | MT | 1116.47 | USD | 20251201 |
| Shandong Jinling Chem | China national standards | MT | 1243.66 | USD | 20251201 |