| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.49 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 756.47 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 770.48 | USD | 20250820 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 686.67 | USD | 20250819 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 812.79 | USD | 20250819 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 686.67 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 686.67 | USD | 20250819 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 742.72 | USD | 20250819 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 770.75 | USD | 20250819 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 756.74 | USD | 20250819 |