GLONGHUI, August 16 | According to a research report by Guoxin Securities on the 15th, Liangwei (605358.SH)'s revenue in the second quarter increased 12% month-on-month, and gross margin was under pressure. The gross margin of semiconductor silicon wafers fell 26pct year-on-year in the first half of the year, and revenue increased by about 14% in the second quarter. Thanks to stable demand for clean energy and new energy vehicles in the first half of the year, the company's semiconductor power device chip production capacity utilization rate remained high, and sales volume fell by only 3% year-on-year. RF chip revenue increased 95% year-on-year in the first half of the year, and losses narrowed. In the first half of the year, the company's compound semiconductor RF chip business achieved revenue of 38.45 million yuan (YoY +95.25%), accounting for 3%, with a gross profit margin of -10.21% (YoY +67pct). Benefiting from breakthroughs in product technology, the company's RF chip verification progress has basically covered mainstream domestic mobile phone chip design customers. Ongoing orders increased sharply year over year, and losses decreased in the first half of the year while revenue increased year on year. The company's short-term profits were under pressure and maintained its “increase holdings” rating.