| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1172.91 | USD | 20251208 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 847.89 | USD | 20251208 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1243.57 | USD | 20251208 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 918.55 | USD | 20251208 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 975.07 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.49 | USD | 20251208 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1102.26 | USD | 20251208 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 876.15 | USD | 20251208 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 847.89 | USD | 20251208 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 908.65 | USD | 20251208 |