Shenzhen Expressway Corp Ltd is engaged in the construction, operation, management, and investment of toll highways and environmental protection in China. The Group has identified two reporting segments, namely the toll road segment and the environmental protection segment. The toll road segment takes charge of the operation and management of toll roads in Mainland China. The environmental protection segment operates and manages environmentally related infrastructure, mainly including solid waste treatment, clean energy, and other related fields. The majority of its revenue is derived from the toll road segment.