| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 882.77 | USD | 20250805 |
| Qingdao Shengze Chem | China national standards | MT | 966.45 | USD | 20250804 |
| Nanjing Daze | China national standards | MT | 1120.53 | USD | 20250804 |
| Shandong Qiangsen Chem | China national standards | MT | 882.41 | USD | 20250804 |
| Shandong Qiangsen Chem | China national standards | MT | 882.41 | USD | 20250804 |
| Shandong Fusheng | China national standards | MT | 882.41 | USD | 20250804 |
| Shandong Fusheng | China national standards | MT | 1092.51 | USD | 20250804 |
| Qingdao Shengze Chem | China national standards | MT | 965.09 | USD | 20250803 |
| Shandong Qiangsen Chem | China national standards | MT | 881.17 | USD | 20250802 |
| Shandong Qiangsen Chem | China national standards | MT | 881.17 | USD | 20250802 |