| Vendor | Spec | Unit | Price | Currency | Date |
| China National Petroleum Corporation Jinzhou Petrochemical Branch | China national standards | MT | 1213.32 | USD | 20251031 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1192.16 | USD | 20251031 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1245.77 | USD | 20251031 |
| SINOPEC Qingdao Refining&Chemical Co., Ltd. | China national standards | MT | 881.77 | USD | 20251031 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 884.59 | USD | 20251031 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 878.95 | USD | 20251031 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1326.19 | USD | 20251031 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 1156.88 | USD | 20251031 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1227.43 | USD | 20251031 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 931.15 | USD | 20251031 |