| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 984.92 | USD | 20250901 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 928.64 | USD | 20250901 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.92 | USD | 20250901 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.09 | USD | 20250901 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1055.89 | USD | 20250831 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.7 | USD | 20250831 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 929.18 | USD | 20250830 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 957.34 | USD | 20250830 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 929.18 | USD | 20250830 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1055.89 | USD | 20250830 |