How many are there in Shenzhen Jingyan Technology Branch of Guangdong Province?

Jingyan Technology has six subsidiaries, namely: Shenzhen Antexin Technology Co., Ltd., Jingyan (Dongguan) Technology Development Co., Ltd., Daoyan (Shanghai) Electronic Technology Development Co., Ltd. and Giantech. American companies, Changzhou Bo Yan Technology Co., Ltd. and Jingyan (Hong Kong) Technology Development Co., Ltd.