| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Longhui Chem | China national standards | MT | 1952.3 | USD | 20251211 |
| Shandong Longhui Chem | China national standards | MT | 1639.51 | USD | 20251210 |
| Shandong Longhui Chem | China national standards | MT | 1950.56 | USD | 20251206 |
| Shandong Longhui Chem | China national standards | MT | 1950.56 | USD | 20251205 |
| Shandong Longhui Chem | China national standards | MT | 1951.0 | USD | 20251204 |
| Shandong Longhui Chem | China national standards | MT | USD | 20251203 | |
| Shandong Longhui Chem | China national standards | MT | USD | 20251202 | |
| Shandong Longhui Chem | China national standards | MT | USD | 20251201 | |
| Shandong Longhui Chem | China national standards | MT | USD | 20251128 | |
| Shandong Longhui Chem | China national standards | MT | USD | 20251127 |