AST was born in 2008 and counts with a speciallized team that has more than 25 years of experience in the Water Sector. We are an Original Equipment Manufacturer (OEM), that manufactures and provides economical and sustainable technological solutions for Water Purification and Toxic Effluent treatment. We are the only Portuguese company that manufactures leachate treatment plants using reverse osmosis technology. Thanks to our speciallized team, we are market leaders in Portugal and Brazil, and have a solid presence in other countries, such as Spain, Romania, Ivory Coast and Mozambique.