| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Jinshuo Chemical Co., Ltd. | China national standards | MT | 957.1 | USD | 20251011 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 943.02 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 935.99 | USD | 20251011 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 985.25 | USD | 20251011 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251011 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 985.25 | USD | 20251011 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1154.15 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1034.51 | USD | 20251011 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1196.37 | USD | 20251011 |