| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| Tongling Chemical Industry Group Corp.ltd | China national standards | MT | 872.2 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Hebei Risun Energy Limited | China national standards | MT | 956.6 | USD | 20250918 |
| Hebei Risun Energy Limited | China national standards | MT | 956.6 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 928.47 | USD | 20250918 |
| Henan Zihe Supply Chain Management Co., Ltd. | China national standards | MT | 872.2 | USD | 20250918 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 928.47 | USD | 20250918 |