| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 1114.17 | USD | 20251120 |
| Shandong Qiangsen Chem | China national standards | MT | 1114.69 | USD | 20251119 |
| Shandong Qiangsen Chem | China national standards | MT | 1114.94 | USD | 20251118 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.57 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.57 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.43 | USD | 20251115 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.43 | USD | 20251114 |
| Shandong Qiangsen Chem | China national standards | MT | 1114.8 | USD | 20251113 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.3 | USD | 20251112 |
| Shandong Qiangsen Chem | China national standards | MT | 1114.78 | USD | 20251111 |