| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 876.29 | USD | 20251210 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 946.96 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1116.56 | USD | 20251210 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 961.09 | USD | 20251210 |
| Zhejiang Petroleum&Chemical Co., Ltd. | China national standards | MT | 848.02 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 932.82 | USD | 20251210 |