| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 930.25 | USD | 20251017 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1240.33 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1127.57 | USD | 20251017 |
| Zibo Jinshuo Chemical Co., Ltd. | China national standards | MT | 944.34 | USD | 20251017 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 1028.91 | USD | 20251017 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 951.39 | USD | 20251017 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 944.34 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1106.43 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251017 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 916.15 | USD | 20251017 |