| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Group Co., Ltd. | China national standards | MT | 895.4 | USD | 20251023 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 888.35 | USD | 20251023 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1043.46 | USD | 20251023 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 888.35 | USD | 20251023 |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 930.65 | USD | 20251023 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 895.4 | USD | 20251023 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1325.47 | USD | 20251023 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 1198.57 | USD | 20251023 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 891.17 | USD | 20251023 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 895.4 | USD | 20251023 |