The predecessor of Guoxin Micro was Tangshan Jingyuan Yufeng Electronics which was established in 1991. In August 2001, it completed its restructuring to become a
joint-stock company. In June 2005, Jingyuan Electronics held its
initial public offering become a listed company on the
Shenzhen Stock Exchange. In June 2010,
Tsinghua Tongfang acquired a 25% stake of Jingyuan Electronics making it the largest shareholder. This was done to provide more support to Jingyuan Electronics to upgrade its technology. Later on Tongfang became the controlling shareholder through a
stock swap making Jingyuan part of the
Tsinghua Holdings group. Tongfang Guoxin also planned an 80 billion yuan
private placement but this was later suspended. Tongfang Guoxin was later renamed to Unigroup Guoxin. In April 2018, Unigroup Guoxin was renamed to Unigroup Guoxin Microelectronics. In September 2018, Tsinghua Holdings sold further shares of Guoxin Micro to Tsinghua Unigroup which gave Tsinghua Unigroup a 51% stake. ==See also==