Xi’an Tian He Defense Technology Co., Ltd. is mainly engaged in the development, manufacture and sales of reconnaissance, command and control systems and the trading of related technologies. The Company has four categories of products. Area air defense products include portable air defense missile command systems, field communication intelligent systems and target-guiding radars, among others. General aviation systems include flight service assurance systems and airport ground monitoring radars, among others. Security protection products include frontier inspection vehicles and radars, among others. Marine detection products include water sound fences, sonar systems and underwater reconnaissance systems, among others.