| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1324.45 | USD | 20251020 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 1225.82 | USD | 20251020 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1190.59 | USD | 20251020 |
| China National Petroleum Corporation Jinzhou Petrochemical Branch | China national standards | MT | 1211.73 | USD | 20251020 |
| Changzhou Juyun Materials Co., Ltd. | China national standards | MT | 1352.63 | USD | 20251020 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 890.78 | USD | 20251019 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 902.06 | USD | 20251019 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 916.15 | USD | 20251018 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 930.25 | USD | 20251018 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 1155.76 | USD | 20251018 |