| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 872.15 | USD | 20250902 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 787.74 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 918.57 | USD | 20250902 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 925.6 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.28 | USD | 20250902 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 900.28 | USD | 20250902 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 766.64 | USD | 20250902 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.79 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.5 | USD | 20250901 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 925.82 | USD | 20250901 |