| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 978.87 | USD | 20250729 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 978.87 | USD | 20250729 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 965.48 | USD | 20250728 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1175.37 | USD | 20250728 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1014.45 | USD | 20250728 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1175.37 | USD | 20250728 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 979.47 | USD | 20250728 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.47 | USD | 20250728 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 965.48 | USD | 20250728 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.47 | USD | 20250728 |