Is Shenzhen Yongjie Chuangxin Technology Co., Ltd. a training institution?

No, according to official website information of Shenzhen Yongjie Chuangxin Technology Co., Ltd., this company is an enterprise mainly engaged in manufacturing electronic equipment such as computers and communications, not a training institution. Shenzhen, referred to as Pengcheng for short, is a prefecture-level city under the jurisdiction of Guangdong Province, a city with separate plans and a megacity.