| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 928.95 | USD | 20251010 |
| Shandong Qiangsen Chem | China national standards | MT | 928.95 | USD | 20251010 |
| Shandong Qiangsen Chem | China national standards | MT | 928.24 | USD | 20251009 |
| Shandong Qiangsen Chem | China national standards | MT | 928.24 | USD | 20251009 |
| Shandong Qiangsen Chem | China national standards | MT | 928.24 | USD | 20251009 |
| Shandong Qiangsen Chem | China national standards | MT | 928.24 | USD | 20251009 |
| Shandong Qiangsen Chem | China national standards | MT | 928.86 | USD | 20251008 |
| Shandong Qiangsen Chem | China national standards | MT | 928.86 | USD | 20251008 |
| Shandong Qiangsen Chem | China national standards | MT | 928.86 | USD | 20250930 |
| Shandong Qiangsen Chem | China national standards | MT | 928.86 | USD | 20250930 |