YahGee Modular House. Co.Ltd, stock-controlled by Nan Shan Development Group Incorporation, is a leading company in China in the field of professionally designing, manufacturing and assembling the prefabricated house. It has been committed to the industry of temporary construction, modular house since 2001 and strives for achieving the standardization and modularization of products whose advantages are "energy-saving, environmentally-friendly, high-efficient, easy to assemble and dismantle, recycled and removable".