| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1003.21 | USD | 20251209 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1130.37 | USD | 20251209 |
| Sinopec Shanghai Gaoqiao Petrochemical Company | China national standards | MT | 840.72 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.39 | USD | 20251209 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 974.95 | USD | 20251209 |
| Changzhou Jiaye Chemical Co., Ltd. | China national standards | MT | 1667.3 | USD | 20251209 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 876.04 | USD | 20251209 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 805.39 | USD | 20251209 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1172.76 | USD | 20251209 |