| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.16 | USD | 20250704 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.25 | USD | 20250703 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.07 | USD | 20250702 |