| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 1523.68 | USD | 20251027 |
| Shandong Yihe Chem | China national standards | MT | 1523.68 | USD | 20251027 |
| Shandong Yihe Chem | China national standards | MT | 1522.67 | USD | 20251024 |
| Shandong Yihe Chem | China national standards | MT | 1522.67 | USD | 20251024 |
| Shandong Yihe Chem | China national standards | MT | 1522.89 | USD | 20251023 |
| Shandong Yihe Chem | China national standards | MT | 1522.89 | USD | 20251023 |
| Shandong Yihe Chem | China national standards | MT | 1522.11 | USD | 20251022 |
| Shandong Yihe Chem | China national standards | MT | 1522.11 | USD | 20251022 |
| Shandong Yihe Chem | China national standards | MT | 1522.63 | USD | 20251021 |
| Shandong Yihe Chem | China national standards | MT | 1522.63 | USD | 20251021 |