| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 931.67 | USD | 20251003 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 931.67 | USD | 20251001 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1217.37 | USD | 20250930 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1154.04 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1329.96 | USD | 20250930 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 942.93 | USD | 20250930 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20250930 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 957.01 | USD | 20250930 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20250930 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20250930 |