| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 463.56 | USD | 20250826 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 393.32 | USD | 20250826 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1039.5 | USD | 20250826 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 393.32 | USD | 20250826 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 323.09 | USD | 20250826 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.13 | USD | 20250826 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.13 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 400.35 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 404.56 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 449.51 | USD | 20250826 |