| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 794.59 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 949.29 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 948.99 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 794.34 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 794.82 | USD | 20250918 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 949.57 | USD | 20250918 |