| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 1057.75 | USD | 20251120 |
| Shandong Qiangsen Chem | China national standards | MT | 1058.25 | USD | 20251119 |
| Shandong Qiangsen Chem | China national standards | MT | 1058.48 | USD | 20251118 |
| Shandong Qiangsen Chem | China national standards | MT | 1059.08 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 1059.08 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 1058.95 | USD | 20251115 |
| Shandong Qiangsen Chem | China national standards | MT | 1058.95 | USD | 20251114 |
| Shandong Qiangsen Chem | China national standards | MT | 1058.35 | USD | 20251113 |
| Shandong Qiangsen Chem | China national standards | MT | 1058.83 | USD | 20251112 |
| Shandong Qiangsen Chem | China national standards | MT | 1058.34 | USD | 20251111 |