| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 570.21 | USD | 20250916 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 569.97 | USD | 20250915 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 569.71 | USD | 20250902 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 568.92 | USD | 20250826 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 567.66 | USD | 20250807 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.7 | USD | 20250728 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.26 | USD | 20250721 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.45 | USD | 20250715 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.11 | USD | 20250709 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.16 | USD | 20250708 |