| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chem | China national standards | MT | 309.3 | USD | 20250920 |
| Shandong Yushuo Chem | China national standards | MT | 295.24 | USD | 20250920 |
| Shandong Yushuo Chem | China national standards | MT | 295.24 | USD | 20250919 |
| Shandong Yushuo Chem | China national standards | MT | 309.3 | USD | 20250919 |
| Shandong Yushuo Chem | China national standards | MT | 309.49 | USD | 20250918 |
| Shandong Yushuo Chem | China national standards | MT | 295.42 | USD | 20250918 |