| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 784.86 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.85 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 847.93 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 861.95 | USD | 20250813 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 784.86 | USD | 20250813 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.82 | USD | 20250813 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.82 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.86 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 770.85 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 756.83 | USD | 20250813 |