中微公司上半年净利预增超31%；海伦钢琴明起停牌丨公告精选

Group 1: Company Performance - Zhongwei Company expects a net profit of 680 million to 730 million yuan for the first half of 2025, representing a year-on-year increase of 31.61% to 41.28% [1] - The company's operating revenue is approximately 4.961 billion yuan, with a year-on-year growth of 43.88%, driven by significant increases in revenue from etching equipment and LPCVD film equipment [1] - Hangzhou Bank reported a net profit of 11.662 billion yuan for the first half of 2025, reflecting a year-on-year growth of 16.67% [2] - The bank's total assets reached 2.235595 trillion yuan, up 5.83% from the end of the previous year [2] Group 2: Corporate Actions - Helen Piano announced that its actual controllers are planning a change in control, leading to a temporary suspension of its stock starting July 18 [3] - Shanghai Material Trade reported that its subsidiary's data product "Non-ferrous Metal Spot Index Query" is currently in a "temporarily invalid" state due to lack of transactions since its listing [4] - Lansheng Co. stated that it has not engaged in any business related to "stablecoins" amid rising market interest [5] Group 3: Other Corporate Developments - Microchip Biotech expects a net profit of 30.06 million yuan for the first half of the year, marking a turnaround from losses [6] - Tuo Jing Technology anticipates a year-on-year net profit increase of 101% to 108% for the second quarter [6] - Kai Sheng New Materials has set an initial inquiry transfer price of 13.69 yuan per share [6]