| Vendor | Spec | Unit | Price | Currency | Date |
| Aite Zhejiang | China national standards | MT | 1300.19 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 1264.86 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 1158.86 | USD | 20251201 |
| Shandong Jinling Chem | China national standards | MT | 1173.0 | USD | 20251201 |
| Shandong Jinwen Chem | China national standards | MT | 1215.39 | USD | 20251201 |
| Shandong Jinmao | China national standards | MT | 1300.19 | USD | 20251201 |
| Dongying Huatai Chem | China national standards | MT | 1102.33 | USD | 20251201 |
| Shandong Yeyang Chem | China national standards | MT | 1102.33 | USD | 20251201 |
| Shandong Yeyang Chem | China national standards | MT | 1116.47 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 1554.57 | USD | 20251201 |