宏和科技：公司主要产品电子级玻璃纤维布是PCB的基础材料之一，主营业务不存在重大变化

Core Viewpoint - The company, Macro Technology (603256), issued a stock trading risk warning announcement, addressing media reports that categorize it as part of the "PCB concept" [1] Group 1: Company Overview - The company's main product, electronic-grade glass fiber cloth, is one of the fundamental materials for PCBs [1] - The company has been focused on the research, production, and sales of its main products for a long time, with no significant changes in its main business operations [1] Group 2: Media and Market Response - Following a self-examination, the company found no need to clarify or respond to media reports or market rumors [1] - The company did not identify any other significant events that could substantially impact its stock trading price [1]