| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 971.05 | USD | 20250924 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1097.71 | USD | 20250924 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 971.05 | USD | 20250924 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1097.71 | USD | 20250924 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 999.2 | USD | 20250924 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 970.38 | USD | 20250922 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 970.38 | USD | 20250922 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 970.38 | USD | 20250922 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1111.02 | USD | 20250922 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1103.99 | USD | 20250922 |