| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1215.56 | USD | 20251205 |
| Nanjing Runhua Chem | China national standards | MT | 1166.09 | USD | 20251205 |
| Shandong Qiangsen Chem | China national standards | MT | 1116.62 | USD | 20251205 |
| Dongying Huatai Chem | China national standards | MT | 1102.49 | USD | 20251205 |
| Shandong Zhiheng | China national standards | MT | 1335.71 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 1434.65 | USD | 20251205 |
| Shandong Jinwen Chem | China national standards | MT | 1215.56 | USD | 20251205 |
| Sinopec | China national standards | MT | 1156.2 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 1434.65 | USD | 20251205 |
| Dongying Huatai Chem | China national standards | MT | 1102.49 | USD | 20251205 |