| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 534.41 | USD | 20250922 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 534.25 | USD | 20250919 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 534.99 | USD | 20250908 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 534.74 | USD | 20250828 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 534.4 | USD | 20250827 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 533.8 | USD | 20250826 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 534.0 | USD | 20250825 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 532.8 | USD | 20250822 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 533.06 | USD | 20250821 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 532.33 | USD | 20250820 |