| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Longhui Chem | China national standards | MT | 1948.16 | USD | 20251107 |
| Shandong Longhui Chem | China national standards | MT | 1636.08 | USD | 20251105 |
| Shandong Longhui Chem | China national standards | MT | 1946.38 | USD | 20251105 |
| Shandong Longhui Chem | China national standards | MT | 1946.82 | USD | 20251104 |
| Shandong Longhui Chem | China national standards | MT | 1636.45 | USD | 20251104 |
| Shandong Longhui Chem | China national standards | MT | 1636.87 | USD | 20251103 |
| Shandong Longhui Chem | China national standards | MT | 1947.31 | USD | 20251103 |
| Shandong Longhui Chem | China national standards | MT | 1636.57 | USD | 20251031 |
| Shandong Longhui Chem | China national standards | MT | 1946.95 | USD | 20251031 |
| Shandong Longhui Chem | China national standards | MT | 1636.94 | USD | 20251030 |