国际复材：公司生产经营正常，主营业务、经营模式未发生重大变化

Group 1 - The company is primarily engaged in the research, production, and sales of fiberglass and its products, with electronic-grade fiberglass being a key component of its product system [1] - Electronic-grade fiberglass is one of the fundamental raw materials for printed circuit boards (PCBs) [1] - The company's production and operations are normal, and there have been no significant changes in its main business or operating model [1]