| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 970.35 | USD | 20250827 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1195.36 | USD | 20250827 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1195.36 | USD | 20250827 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |