| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 758.94 | USD | 20250928 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 927.59 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 927.59 | USD | 20250928 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 927.59 | USD | 20250928 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 885.43 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 941.65 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 920.56 | USD | 20250928 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 843.27 | USD | 20250927 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250927 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250927 |