| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1182.15 | USD | 20250923 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1055.49 | USD | 20250923 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1238.44 | USD | 20250923 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1048.45 | USD | 20250923 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250923 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 985.12 | USD | 20250923 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1055.49 | USD | 20250923 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.61 | USD | 20250923 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 985.12 | USD | 20250923 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250923 |