Coreslab Structures is a leading manufacturer of precast and prestressed concrete products in both Canada and the United States. It began as a small hollow-core manufacturer in Ontario, Canada in 1975. Throughout the 1970s and 80s, the company s focus shifted from hollow-core to prestressed concrete manufacturing. In 1988, the company began its expansion program into the United States. The company s Cedar Park, Texas, office specializes in building materials for office and educational buildings, parking structures and high-rise buildings. Coreslab Structures operates approximately 20 additional facilities in Ontario, Connecticut, California, Arizona, New Mexico, Oklahoma, Nebraska, Kansas, Missouri, Arkansas, Indiana, Georgia, South Carolina and Florida.