| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1329.92 | USD | 20250924 |
| Shandong Yuhuang Chem | China national standards | MT | 1287.7 | USD | 20250924 |
| Shandong Hongyang Chem | China national standards | MT | 1189.19 | USD | 20250924 |
| Shandong Hongyang Chem | China national standards | MT | 1189.19 | USD | 20250924 |
| Shandong Zhiheng | China national standards | MT | 1168.08 | USD | 20250924 |
| Sinopec | China national standards | MT | 1210.3 | USD | 20250924 |
| CNPC | China national standards | MT | 1210.3 | USD | 20250924 |
| Shinghwa AdvMat | China national standards | MT | 1336.95 | USD | 20250923 |
| Zibo Lishuo Chem | China national standards | MT | 985.12 | USD | 20250923 |
| Zibo Lishuo Chem | China national standards | MT | 985.12 | USD | 20250923 |