| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1283.86 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1107.51 | USD | 20251031 |
| Shandong Jinwen Chem | China national standards | MT | 1044.02 | USD | 20251031 |
| Lihuayi Shandong | China national standards | MT | 818.28 | USD | 20251031 |
| Shandong Fusheng | China national standards | MT | 1058.13 | USD | 20251031 |
| Shandong Fusheng | China national standards | MT | 1128.67 | USD | 20251031 |
| Aite Zhejiang | China national standards | MT | 1072.23 | USD | 20251031 |
| Aite Zhejiang | China national standards | MT | 1029.91 | USD | 20251031 |
| Shandong Hongyang Chem | China national standards | MT | 1128.67 | USD | 20251031 |
| Shandong Hongyang Chem | China national standards | MT | 1128.67 | USD | 20251031 |