| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 839.0 | USD | 20251023 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 838.09 | USD | 20251015 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 836.83 | USD | 20251009 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 836.24 | USD | 20250926 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 837.36 | USD | 20250925 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 837.36 | USD | 20250924 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 837.36 | USD | 20250923 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 836.78 | USD | 20250922 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 836.52 | USD | 20250919 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 837.03 | USD | 20250918 |