| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Longhui Chem | China national standards | MT | 1632.54 | USD | 20251007 |
| Shandong Longhui Chem | China national standards | MT | 1942.16 | USD | 20251007 |
| Shandong Longhui Chem | China national standards | MT | 1632.54 | USD | 20250930 |
| Shandong Longhui Chem | China national standards | MT | 1942.16 | USD | 20250930 |
| Shandong Longhui Chem | China national standards | MT | 1942.1 | USD | 20250925 |
| Shandong Longhui Chem | China national standards | MT | 1632.49 | USD | 20250925 |
| Shandong Longhui Chem | China national standards | MT | 1632.49 | USD | 20250924 |
| Shandong Longhui Chem | China national standards | MT | 1942.1 | USD | 20250924 |
| Shandong Longhui Chem | China national standards | MT | 1632.49 | USD | 20250923 |
| Shandong Longhui Chem | China national standards | MT | 1942.1 | USD | 20250923 |