| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 936.53 | USD | 20251013 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 936.53 | USD | 20251013 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 915.4 | USD | 20251013 |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 957.65 | USD | 20251013 |
| SINOPEC Qingdao Refining&Chemical Co., Ltd. | China national standards | MT | 936.53 | USD | 20251013 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 915.4 | USD | 20251013 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 936.53 | USD | 20251013 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 915.4 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1330.85 | USD | 20251013 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1337.9 | USD | 20251013 |