Yeung Man Ying, is the Chairman and Executive Director of SIM Technology Group. Mdm. Yeung is responsible for the overall business management and strategic direction and development of the Group

In 1986, Mdm. Yeung together with her spouse, Mr. Wong, founded Sunrise Technology (HK), a company engaging in the distribution of electronic components. Over the years, the couple has expanded the business through a number of subsidiaries including Shanghai Sunrise. These subsidiaries are engaged in the electronics as well as telecommunications sectors. Established in November 1993, Shanghai Sunrise has later on become the first subsidiary of SIM Technology Group.

Mdm. Yeung has accumulated over 20 years of experience in the electronics and telecommunications industry. Her primary responsibilities include sales and marketing, supply chain management, as well as operation management Before setting up Sunrise Technology (HK), Mdm. Yeung also lectured at the Electrical Department of the South China University of Technology in 1977. Mdm. Yeung has been a guest professor at Tongji University since 2003.

Graduated in 1968 from the Beijing University of Aeronautics and Astronautics, Mdm. Yeung is specialized in the field of Electrical Engineering.