| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.62 | USD | 20251210 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 876.29 | USD | 20251210 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1116.56 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 826.82 | USD | 20251210 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 848.02 | USD | 20251210 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 848.02 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.62 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 805.62 | USD | 20251210 |