CHONGQING MAS SCI.&TECH. CO., LTD. is a China-based company principally engaged in research, development, design, production, testing, inspection, marketing and operation of detection, monitoring and early warning complete sets of technology and equipment and overall solutions, as well as the provision of maintenance services. The Company's main products include safety monitoring systems, personnel positioning systems, gas extraction and automatic control systems, gas outburst warning systems and digital mine integrated management systems. The Company's products are mainly used in the areas of mine safety monitoring and early warning. The Company distributes its products in domestic market.