| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 448.89 | USD | 20250821 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1038.06 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 403.45 | USD | 20250820 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.39 | USD | 20250820 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.39 | USD | 20250820 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1022.64 | USD | 20250820 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 448.28 | USD | 20250820 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1036.65 | USD | 20250820 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1036.65 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 403.59 | USD | 20250819 |