骏鼎达：公司2025年1月-9月的毛利率变动主要系营业成本增加所致

Group 1 - The company has not yet disclosed its annual report for 2025, and financial data such as gross margin should be referenced from the audited periodic report [2] - The change in gross margin from January to September 2025 is primarily due to an increase in operating costs, influenced by multiple factors including increased operating revenue, changes in material costs, product structure, and customer structure [2]