| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1076.51 | USD | 20250828 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1075.83 | USD | 20250827 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1075.83 | USD | 20250827 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1074.62 | USD | 20250826 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1074.62 | USD | 20250826 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1075.03 | USD | 20250825 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1075.03 | USD | 20250825 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1072.62 | USD | 20250822 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1072.62 | USD | 20250822 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1073.13 | USD | 20250821 |