| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 915.14 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1168.57 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1147.45 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.23 | USD | 20250916 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1450.15 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1140.41 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.23 | USD | 20250916 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.94 | USD | 20250916 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1337.52 | USD | 20250916 |
| Jiangsu Haixing Chemical Co., Ltd. | China national standards | MT | 1140.41 | USD | 20250916 |