普天科技：公司生产的PCB产品可广泛应用于通信、电力、高铁、航空航天等高端领域，有少量产品出口

Group 1 - The company, Putian Technology, focuses on three main business areas: public communication, private communication, and smart applications, as well as intelligent manufacturing [2] - The company's PCB products are widely applicable in high-end fields such as communication, electricity, high-speed rail, aerospace, and special equipment, with a small portion exported [2] - The company will disclose significant information in accordance with regulations through designated media, including China Securities Journal, Securities Times, and Giant Tide Information Network [2]