| Vendor | Spec | Unit | Price | Currency | Date |
| Guangxi Tiandong Jinyi Technology Co., Ltd. | China national standards | MT | 490.48 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 283.08 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 283.08 | USD | 20250819 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 350.34 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 357.35 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 357.35 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 378.37 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.34 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 357.35 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.34 | USD | 20250819 |