| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 1480.85 | USD | 20251120 |
| Shandong Qiangsen Chem | China national standards | MT | 1481.54 | USD | 20251119 |
| Shandong Qiangsen Chem | China national standards | MT | 1481.88 | USD | 20251118 |
| Shandong Qiangsen Chem | China national standards | MT | 1482.72 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 1482.72 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 1482.53 | USD | 20251115 |
| Shandong Qiangsen Chem | China national standards | MT | 1482.53 | USD | 20251114 |
| Shandong Qiangsen Chem | China national standards | MT | 1482.36 | USD | 20251112 |
| Shandong Qiangsen Chem | China national standards | MT | 1481.67 | USD | 20251111 |
| Shandong Qiangsen Chem | China national standards | MT | 1481.88 | USD | 20251110 |