Chengdu Yunda Technology Co., Ltd. provides rail transportation intelligent solutions and services in China and internationally, together with its subsidiaries. Its offerings include smart training, intelligent operation and maintenance, smart depot, intelligent traction power and supply, and smart freight solutions. The company also provides repair and maintenance for railroad rolling stock and ground equipment, overhaul of locomotive, passenger and moving car and metro vehicle components, agency sales of rolling stock parts, railway special equipment, special parts and consumables, technical services for rail transportation fields, and technological change development. It serves national railways, urban railways and colleges, was founded in 1992, and is based in Chengdu, China.