| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1116.54 | USD | 20251203 |
| Shandong Yuxuan Chem | China national standards | MT | 1215.48 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1257.88 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1264.95 | USD | 20251203 |
| Shandong Zhenkun | China national standards | MT | 1000.65 | USD | 20251203 |
| Shandong Jinwen Chem | China national standards | MT | 1215.48 | USD | 20251203 |
| Shandong Jinling Chem | China national standards | MT | 1116.54 | USD | 20251203 |
| Shandong Junfeng | China national standards | MT | 932.81 | USD | 20251203 |
| Dongying Huatai Chem | China national standards | MT | 1102.41 | USD | 20251203 |
| Dongying Huatai Chem | China national standards | MT | 1060.01 | USD | 20251203 |