【私募调研记录】银叶投资调研中微半导、通宇通讯

Group 1: Zhongwei Semiconductor - Zhongwei Semiconductor reported a revenue of 504 million yuan in the first half of the year, with consumer electronics accounting for 40%, small appliances 31%, industrial control 25%, and automotive applications 4% [1] - The company has seen a reduction in inventory from 700 million yuan to over 300 million yuan, with a turnover rate of 2-4 [1] - The gross margin is approximately 33%, with expectations for improvement; the company shipped 1.7 billion units in the first half, including 1.4 billion 8-bit chips and 130 million 32-bit chips [1] - The company aims to increase its 32-bit chip shipments to over 300 million units in the second half of the year and is focusing on domestic substitution in the white goods sector [1] Group 2: Tongyu Communication - Tongyu Communication is actively expanding into low-orbit broadband satellite internet, entering the supply chain of Yuanxin and promoting full-scenario coverage [2] - The revenue from microwave antennas reached 119 million yuan in the first half of 2025, representing an 84% year-on-year increase, with a gross margin of 33% [2] - Satellite communication revenue was 26 million yuan, up 2.59% year-on-year, while optical module revenue grew by 98% [2] - Overseas sales accounted for 49% of total revenue, primarily driven by 4G/5G construction needs in Belt and Road countries [2] - The company plans to maintain its market position in base station antennas and participate in the integrated construction of 5G and 6G over the next 3-5 years [2]