| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1111.92 | USD | 20251011 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.95 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1034.51 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 935.99 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 935.99 | USD | 20251011 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1013.4 | USD | 20251011 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 957.1 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1154.15 | USD | 20251011 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 935.99 | USD | 20251011 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1048.59 | USD | 20251011 |