sector) Infrastructures are indispensable in supporting business activities and investors daily lives in fields. Play & Plug projects is essential for promoting sustainable social and economic development to meet needs of investors. Madayn intends to develop sites in its industrial cities to include (Complex Industry Sector) and (Food industrial sector.) In all the industrial cities, Madayn has dedicated land parcel for light and medium industries. Madayn recognizes the importance of creating quality industrial cities, and as such has established design principles for the same.