| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chem | China national standards | MT | 790.07 | USD | 20251031 |
| Shandong Yeyang Chem | China national standards | MT | 790.07 | USD | 20251031 |
| Shandong Yeyang Chem | China national standards | MT | 818.28 | USD | 20251031 |
| Aite Zhejiang | China national standards | MT | 881.77 | USD | 20251031 |
| Aite Zhejiang | China national standards | MT | 888.83 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1142.78 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1142.78 | USD | 20251031 |
| Shandong Qiangsen Chem | China national standards | MT | 818.28 | USD | 20251031 |
| Shandong Kaitai Petro | China national standards | MT | 917.04 | USD | 20251031 |
| Shandong Kaitai Petro | China national standards | MT | 888.83 | USD | 20251031 |