| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yaowang Chem | China national standards | MT | 348.92 | USD | 20251128 |
| Shandong Yaowang Chem | China national standards | MT | 348.97 | USD | 20251127 |
| Shandong Yaowang Chem | China national standards | MT | 348.74 | USD | 20251125 |
| Shandong Yaowang Chem | China national standards | MT | 348.5 | USD | 20251122 |
| Shandong Yaowang Chem | China national standards | MT | 345.68 | USD | 20251121 |
| Shandong Yaowang Chem | China national standards | MT | 338.72 | USD | 20251118 |
| Shandong Yaowang Chem | China national standards | MT | 338.86 | USD | 20251114 |
| Shandong Yaowang Chem | China national standards | MT | 338.67 | USD | 20251113 |
| Shandong Yaowang Chem | China national standards | MT | 338.72 | USD | 20251110 |
| Shandong Yaowang Chem | China national standards | MT | 338.81 | USD | 20251107 |