| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1243.57 | USD | 20251208 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 975.07 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.49 | USD | 20251208 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 975.07 | USD | 20251208 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 847.89 | USD | 20251208 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1158.78 | USD | 20251208 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 960.94 | USD | 20251208 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1059.86 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.49 | USD | 20251208 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |