| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1009.18 | USD | 20250807 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1082.07 | USD | 20250807 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1191.39 | USD | 20250807 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 953.12 | USD | 20250807 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 981.15 | USD | 20250807 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1205.41 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1205.41 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1205.41 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.37 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1191.39 | USD | 20250807 |