June 2021

FAB3 first batch of MEMS microphone chips through customer certification, officially launched mass production

March 2021

The application for issuing shares to a specific target has been approved by the CSRC for registration. Decisions to divest non-semiconductor businesses such as inertial navigation.

May 2020

The full name of the company was changed to "Beijing Sai Microelectronics Co., Ltd."; the full name in English was changed to "Sai MicroElectronics Inc."; the short name of the securities was changed to "Sai Microelectronics" and the short name in English was changed to "SMEI".

2019

Naiwei Technology completed the non-public offering, raised 1.228 billion yuan, and introduced the strategic shareholder National Integrated Circuit Industry Investment Fund Co., Ltd.