3连板上海港湾：钙钛矿太阳能电池业务及商业航天业务占公司营收比例均规模较小

Core Viewpoint - Shanghai Port Bay (605598.SH) issued a stock trading risk warning, clarifying that its main business is related to geotechnical engineering, specifically foundation treatment and pile foundation engineering, rather than being involved in perovskite solar cells or commercial aerospace sectors [1] Summary by Relevant Categories Company Business - The company confirmed that its core operations focus on geotechnical engineering, including foundation treatment and pile foundation engineering [1] - Perovskite solar cell and commercial aerospace businesses contribute less than 0.5% to the company's revenue, indicating their minimal impact on overall operations [1] Financial Performance - According to audited financial data for 2024, both the perovskite solar cell and commercial aerospace segments are currently operating at a loss [1] - The company emphasized that the aforementioned matters do not have a substantial impact on its current main business operations [1]