Supporting Communities from Below

Infra: Advocating for the Sand and Stone Producers of Missouri.

The Missouri Limestone Producers Association (MLPA) is now Infra.

The organization was founded in 1944 to promote and protect the interests of crushed stone operators located or doing business in Missouri. We now represent all construction aggregate producers in our state, a vital industry in our state. Our products are used in construction and infrastructure projects that support societies throughout the world.

Watch Infra Reveal

Producer MEMBERS

Workers

Missouri Counties

Highest per capita production in the U.S.

Resource Library

Infra is here to serve the interests of its members, inform the public, and inspire the next generation of entrepreneurs and workers in our industry.

Member Resources

Learn about our work on legislation, regulations, community relations, and growing new markets.

Industry Resources

Need stone for your next project? Find a local producer for your job.

Educational Resources

Learn about Missouri stone and sand and its role in the modern economy.

Infra Annual Convention

December 3-5, 2025

Margaritaville Lake Resort Lake of the Ozarks
494 Tan Tar A Drive
Osage Beach, MO 65065