| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.76 | USD | 20250819 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 784.76 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 847.83 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 861.84 | USD | 20250819 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.75 | USD | 20250819 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 784.76 | USD | 20250819 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 687.03 | USD | 20250818 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 813.21 | USD | 20250818 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 687.03 | USD | 20250818 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 743.11 | USD | 20250818 |