| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 998.75 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1125.35 | USD | 20250929 |
| Sinopec Shanghai Gaoqiao Petrochemical Company | China national standards | MT | 991.71 | USD | 20250929 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1097.22 | USD | 20250929 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 991.71 | USD | 20250929 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1111.28 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1104.25 | USD | 20250929 |