| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 415.0 | USD | 20250918 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 337.62 | USD | 20250918 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.69 | USD | 20250918 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 341.84 | USD | 20250918 |
| China national standards | MT | 407.96 | USD | 20250918 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.98 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.06 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20250915 |