| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1047.69 | USD | 20251023 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1046.55 | USD | 20251015 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1044.98 | USD | 20251009 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1044.24 | USD | 20250926 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1045.64 | USD | 20250925 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1045.64 | USD | 20250924 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1045.64 | USD | 20250923 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1044.92 | USD | 20250922 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1044.6 | USD | 20250919 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1045.23 | USD | 20250918 |