| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 865.5 | USD | 20250923 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 788.1 | USD | 20250923 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 731.81 | USD | 20250923 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 745.88 | USD | 20250923 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 703.18 | USD | 20250922 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 773.49 | USD | 20250922 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.11 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 632.86 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 745.37 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 703.18 | USD | 20250922 |