| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20250930 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 914.78 | USD | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 985.15 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1104.78 | USD | 20250930 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 985.15 | USD | 20250930 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.86 | USD | 20250930 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1168.11 | USD | 20250930 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 978.12 | USD | 20250930 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1125.89 | USD | 20250930 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1154.04 | USD | 20250930 |