| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 761.11 | USD | 20251017 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 760.91 | USD | 20251016 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 760.34 | USD | 20251014 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 760.49 | USD | 20251013 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 759.97 | USD | 20250930 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 759.97 | USD | 20250930 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 758.94 | USD | 20250926 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250925 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250924 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 759.43 | USD | 20250922 |