Gravel Limestone Slag Sand
Indiana Mineral Aggregates Association

Serving the Indiana aggregates industry since 1934.

The purpose of the Indiana Mineral Aggregates Association is to solve common problems of the Indiana aggregate producing industry, principally in the areas of specifications for aggregates, mine safety and reclamation, air and water pollution, legislation, research for improvements in aggregates used, increased public awareness of the importance of aggregate products in their daily lives, and broadening the use and application of aggregates in Indiana.

IMAA Members Information

Representing over 90% of aggregate production in Indiana, IMAA pledges to provide the best educational programs and resources, networking opportunities, and collaborative working atmosphere for our membership.


Providing you with up to date information on Federal and State issues, IMAA events and meetings, and membership spotlights.


IMAA represents over 90% of aggregate production in Indiana. Find out what we’re doing for our members and how you can benefit from IMAA.
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IMAA members produce crushed stone, sand, gravel or slag, sell mining equipment, haul material, and much, much more.
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The Source Report – the bi-monthly membership newsletter of the Indiana Mineral Aggregates Association.

Read the Latest Issue