| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 803.12 | USD | 20251020 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 803.39 | USD | 20251017 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.58 | USD | 20251014 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.74 | USD | 20251013 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.2 | USD | 20250930 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 801.1 | USD | 20250926 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.17 | USD | 20250925 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.17 | USD | 20250924 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 801.37 | USD | 20250919 |