Guangzhou Metro Design Research Institute Co., Ltd., (hereinafter referred to as GMDl), founded in 1993, is the first rail transit design enterprise listed on the A-share market in China and is also a national high-tech enterprise. lt possesses the highest industry qualifications such as national comprehensive Class-A engineering design comprehensive Class-A engineering investigation, Class-A urban and rural planning and Class-A civil air defense design. Its business scope covers areas including urban rail transit, municipal, architectural, and other engineering fields, such as planning consultation, survey and design, general contracting of projects, mechanical and electrical integration, smart energy management, and software digitalization. With leading engineering performance and design experience in the industry, it is one of the strongest comprehensive design companies for urban rail transit in China.