| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 1268.86 | USD | 20251021 |
| Shandong Xima | China national standards | MT | 874.1 | USD | 20251021 |
| Shandong Qiangsen Chem | China national standards | MT | 888.2 | USD | 20251021 |
| Shandong Qiangsen Chem | China national standards | MT | 888.2 | USD | 20251021 |
| Shandong Fusheng | China national standards | MT | 888.2 | USD | 20251021 |
| Shandong Fusheng | China national standards | MT | 1099.68 | USD | 20251021 |
| Shandong Fusheng | China national standards | MT | 1099.01 | USD | 20251020 |
| Shandong Fusheng | China national standards | MT | 887.66 | USD | 20251020 |
| Nanjing Waien Chem | China national standards | MT | 958.11 | USD | 20251020 |
| Wuhan Hengjiu Chem | China national standards | MT | 958.11 | USD | 20251020 |