| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 819.68 | USD | 20251201 |
| Shandong Yeyang Chem | China national standards | MT | 791.08 | USD | 20251129 |
| Shandong Yeyang Chem | China national standards | MT | 819.34 | USD | 20251129 |
| Shandong Yeyang Chem | China national standards | MT | 819.34 | USD | 20251128 |
| Shandong Yeyang Chem | China national standards | MT | 791.08 | USD | 20251128 |
| Shandong Yeyang Chem | China national standards | MT | 791.2 | USD | 20251127 |
| Shandong Yeyang Chem | China national standards | MT | 819.45 | USD | 20251127 |
| Shandong Yeyang Chem | China national standards | MT | 819.26 | USD | 20251126 |
| Shandong Yeyang Chem | China national standards | MT | 791.01 | USD | 20251126 |
| Shandong Yeyang Chem | China national standards | MT | 790.67 | USD | 20251125 |