| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1017.62 | USD | 20251210 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1017.34 | USD | 20251209 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1016.48 | USD | 20251112 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1016.15 | USD | 20251110 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1016.43 | USD | 20251107 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1015.8 | USD | 20251031 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1016.03 | USD | 20251030 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1016.15 | USD | 20251028 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1015.11 | USD | 20251024 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1015.26 | USD | 20251023 |