| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 848.01 | USD | 20251203 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 883.34 | USD | 20251203 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1243.75 | USD | 20251203 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1003.48 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 840.94 | USD | 20251203 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 890.41 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 840.94 | USD | 20251203 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1003.48 | USD | 20251203 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1003.48 | USD | 20251203 |