芯片封装测试商通富微电跌8.4%，控股股东拟减持股份。

Core Viewpoint - The stock of Tongfu Microelectronics, a chip packaging and testing company, has dropped by 8.4% following the announcement of share reduction plans by its controlling shareholder [1] Group 1 - Tongfu Microelectronics experienced a significant decline in stock price, falling 8.4% [1] - The controlling shareholder of Tongfu Microelectronics has proposed to reduce their shareholding [1]