| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 928.19 | USD | 20250922 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 927.9 | USD | 20250919 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 928.47 | USD | 20250918 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 929.22 | USD | 20250916 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 928.84 | USD | 20250915 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 928.41 | USD | 20250902 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 925.08 | USD | 20250807 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 923.5 | USD | 20250728 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 922.79 | USD | 20250721 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 923.1 | USD | 20250718 |