Dongguan Rail Transit was established in May 2009 as a municipal state-owned enterprise responsible for urban rail construction, operations and resource development. Its stated activities include maintenance, investment, wholesale and retail business, property management, consulting, advertising and real estate development.
The original profile emphasizes integrity, service, innovation and shared progress, with rail-network development supporting Dongguan's role in the Greater Bay Area. It lists recognition for civic conduct, major-project management and workplace governance, and notes the company's involvement with China Railway Eryuan in preparing a metro express-line design standard approved by the housing and urban-rural development authorities.BIOSUN provides air treatment solutions for rail transit. Its Chinese project profile reports experience across more than 100 rail projects in China and overseas, with applications addressing airborne microorganisms, particles, chemical gases and emissions from interior materials in occupied transport environments.
Applications cover train interiors, platforms, station halls and public restrooms. BIOSUN applies PHOTOPLASMA technology to selected microbial, gaseous and particulate air treatment requirements. Performance should be assessed against the equipment specifications, relevant test reports and operating conditions.
