| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 341.74 | USD | 20250922 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 337.52 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.65 | USD | 20250922 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.09 | USD | 20250922 |
| Tianjin Shengtongtai Chemical Co., Ltd. | China national standards | MT | 351.59 | USD | 20250922 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 414.87 | USD | 20250922 |
| China national standards | MT | 407.84 | USD | 20250922 | |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 365.65 | USD | 20250922 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 365.65 | USD | 20250922 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 365.65 | USD | 20250922 |