温州宏丰：控股子公司浙江宏丰半导体新材料有限公司主营蚀刻引线框架材料的研发、制造和销售

Core Viewpoint - Wenzhou Hongfeng (300283) is actively developing its semiconductor materials business, focusing on etching lead frame materials essential for integrated circuit chip packaging [1] Company Summary - The company's subsidiary, Zhejiang Hongfeng Semiconductor Materials Co., Ltd., specializes in the research, manufacturing, and sales of etching lead frame materials [1] - These materials are critical for connecting internal and external circuits in chip manufacturing [1] - The company is currently advancing its product certification and market development efforts, although specific customer information is confidential [1] Industry Summary - The primary raw materials for semiconductor lead frames are currently sourced externally [1]