| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinmao | China national standards | MT | 1300.67 | USD | 20251204 |
| Dongying Huatai Chem | China national standards | MT | 1484.46 | USD | 20251204 |
| Shandong Zhenkun | China national standards | MT | 1000.65 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1215.48 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1399.21 | USD | 20251203 |
| Shandong Hongyang Chem | China national standards | MT | 1434.55 | USD | 20251203 |
| Shandong Hongyang Chem | China national standards | MT | 1434.55 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1257.88 | USD | 20251203 |
| Dongying Huatai Chem | China national standards | MT | 1102.41 | USD | 20251203 |
| Shandong Zhenkun | China national standards | MT | 1000.65 | USD | 20251203 |