| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1169.85 | USD | 20251018 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 930.25 | USD | 20251018 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 944.34 | USD | 20251018 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 930.25 | USD | 20251018 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 923.2 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251018 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 1028.91 | USD | 20251017 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1240.33 | USD | 20251017 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1035.96 | USD | 20251017 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1240.33 | USD | 20251017 |