China Resources Holdings started to invest in large infrastructure and utilities in the 1980s by cooperating with other Hong Kong consortiums, aimed at spreading the investment risks and earning stable long-term returns. Today China Resources has shifted its focus onto the public utilities more closely related to the people's livelihood, mainly including business of electricity and city gas business. The profit centers engaged in infrastructure and public utilities include: China Resources Power Holdings Ltd., China Resources Gas (Group) Limited and China Resources Development and Investment Co. Ltd.