| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1202.5 | USD | 20251211 |
| Shandong Yeyang Chem | China national standards | MT | 1201.36 | USD | 20251210 |
| Shandong Yeyang Chem | China national standards | MT | 1200.75 | USD | 20251128 |
| Shandong Yeyang Chem | China national standards | MT | 1200.63 | USD | 20251126 |
| Shandong Yeyang Chem | China national standards | MT | 1199.77 | USD | 20251124 |
| Shandong Yeyang Chem | China national standards | MT | 1198.79 | USD | 20251120 |
| Shandong Yeyang Chem | China national standards | MT | 1199.35 | USD | 20251119 |
| Shandong Yeyang Chem | China national standards | MT | 1200.29 | USD | 20251117 |
| Shandong Yeyang Chem | China national standards | MT | 1200.14 | USD | 20251115 |
| Shandong Yeyang Chem | China national standards | MT | 1200.14 | USD | 20251114 |