| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Longhui Chem | China national standards | MT | 1949.26 | USD | 20251126 |
| Shandong Longhui Chem | China national standards | MT | 1637.82 | USD | 20251125 |
| Shandong Longhui Chem | China national standards | MT | 1948.44 | USD | 20251125 |
| Shandong Longhui Chem | China national standards | MT | 1947.09 | USD | 20251121 |
| Shandong Longhui Chem | China national standards | MT | 1636.68 | USD | 20251121 |
| Shandong Longhui Chem | China national standards | MT | 1636.75 | USD | 20251119 |
| Shandong Longhui Chem | China national standards | MT | 1947.17 | USD | 20251119 |
| Shandong Longhui Chem | China national standards | MT | 1947.61 | USD | 20251118 |
| Shandong Longhui Chem | China national standards | MT | 1637.12 | USD | 20251118 |
| Shandong Longhui Chem | China national standards | MT | 1637.84 | USD | 20251115 |