| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 1485.44 | USD | 20251211 |
| Shandong Qiangsen Chem | China national standards | MT | 1484.04 | USD | 20251210 |
| Shandong Qiangsen Chem | China national standards | MT | 1483.62 | USD | 20251209 |
| Shandong Qiangsen Chem | China national standards | MT | 1483.81 | USD | 20251208 |
| Shandong Qiangsen Chem | China national standards | MT | 1484.12 | USD | 20251206 |
| Shandong Qiangsen Chem | China national standards | MT | 1484.12 | USD | 20251205 |
| Shandong Qiangsen Chem | China national standards | MT | 1484.46 | USD | 20251204 |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20251203 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20251202 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20251201 |