| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 1115.99 | USD | 20251129 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.99 | USD | 20251128 |
| Shandong Qiangsen Chem | China national standards | MT | 1116.15 | USD | 20251127 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.88 | USD | 20251126 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.88 | USD | 20251126 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.41 | USD | 20251125 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.08 | USD | 20251124 |
| Shandong Qiangsen Chem | China national standards | MT | 1114.64 | USD | 20251122 |
| Shandong Qiangsen Chem | China national standards | MT | 1114.64 | USD | 20251121 |
| Shandong Qiangsen Chem | China national standards | MT | 1114.64 | USD | 20251121 |