| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 956.98 | USD | 20250925 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.98 | USD | 20250925 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 956.98 | USD | 20250925 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 956.98 | USD | 20250925 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1242.66 | USD | 20250925 |
| SINOPEC Qingdao Refining&Chemical Co., Ltd. | China national standards | MT | 1245.48 | USD | 20250925 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1196.22 | USD | 20250925 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1379.17 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1224.37 | USD | 20250925 |