| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1016.53 | USD | 20250823 |
| Shandong Laya Chem | China national standards | MT | 995.5 | USD | 20250823 |
| Qingdao Shengze Chem | China national standards | MT | 1016.53 | USD | 20250822 |
| Qingdao Shengze Chem | China national standards | MT | 1016.53 | USD | 20250822 |
| Shandong Xima | China national standards | MT | 981.48 | USD | 20250822 |
| Shandong Qiangsen Chem | China national standards | MT | 981.48 | USD | 20250822 |
| Shandong Langchem | China national standards | MT | 1072.62 | USD | 20250822 |
| Shandong Langchem | China national standards | MT | 1093.65 | USD | 20250822 |
| Shandong Langchem | China national standards | MT | 1093.65 | USD | 20250822 |
| Shandong Langchem | China national standards | MT | 1247.88 | USD | 20250822 |