| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.55 | USD | 20251015 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.55 | USD | 20251015 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.03 | USD | 20251014 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.03 | USD | 20251014 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.31 | USD | 20251013 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.31 | USD | 20251013 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1407.5 | USD | 20251011 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1407.5 | USD | 20251011 |