Site demountable building is a high-grade disassembled series product developed by Khome Company. It uses light steel structure as the basis weight of the floor, making full use of the strength of the sandwich wall panel and the roof panel, and is composed of effective high- strength bolt connection. The site demountable building adopts modular design, and the space layout is more flexible. The internal and external are more neat and beautiful, and the airtightness and sound insulation performance are better. The estimated FOB price is $45 each square meter. The accurate price is determined by the design and chosen material.