Welcome to the home of the California Construction and Industrial Materials Association (CalCIMA). CalCIMA is a non-profit member organization that was formed in January of 2007 by joining the memberships of four established previous associations California Mining Association, Construction Materials Association of California, Southern California Rock Products, and Southern California Ready Mixed Concrete Association. We are the statewide voice for aggregates, ready-mixed concrete and other industrial material companies throughout the length and breadth of California. Our members also include suppliers and service providers to the industry.

Whether you are visiting for membership information, teaching materials, to learn how concrete and aggregates build the foundations for California’s future while caring for its lands, or signing in as a current member, we hope you enjoy our website and find it useful.

CalCIMA:

• Is a non-profit member organization for California construction and industrial materials producers, suppliers and service providers
• Serves as the statewide voice for aggregates, ready-mixed concrete and other industrial materials companies

 Our website provides information for:

• Members of the Public
• Public Officials
• Media
• Teachers and Students
• Our Customers, Contractors and Vendors
• Our Members