| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 1130.37 | USD | 20251209 |
| Jinan Angxin Chem | China national standards | MT | 975.07 | USD | 20251208 |
| Shandong Shuojia Chem | China national standards | MT | 890.28 | USD | 20251208 |
| Jinan Angxin Chem | China national standards | MT | 975.07 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 989.2 | USD | 20251208 |
| Liao Jinxinda | China national standards | MT | 854.95 | USD | 20251208 |
| Shandong Shuojia Chem | China national standards | MT | 890.28 | USD | 20251208 |
| Shandong Yihe Chem | China national standards | MT | 819.63 | USD | 20251208 |