| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.11 | USD | 20250922 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 703.18 | USD | 20250922 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 773.49 | USD | 20250922 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 703.18 | USD | 20250922 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 710.21 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 787.56 | USD | 20250922 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.11 | USD | 20250922 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 745.14 | USD | 20250921 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 759.19 | USD | 20250920 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 759.19 | USD | 20250920 |