What are the outsourcing companies of Tencent?

Tencent's three outsourcing companies are stage, ChinaSoft International Limited and Yida Information Technology Limited. Stage, ChinaSoft International Co., Ltd. and Yida Information Technology Co., Ltd. enabled Tencent to reduce operating costs, improve quality, concentrate human resources and improve customer satisfaction. Tencent Computer System Co., Ltd. was established in June 1998 1 1, and was co-founded by Ma, Zhang Zhidong, Xu, Chen Yidan and five founders.