Amrize Ste. Genevieve Cement Plant
Large load · 2942 US HWY 61, Bloomsdale, MO
The Ste. Genevieve cement plant in Bloomsdale, Missouri, is described by Amrize as North America's largest cement plant, with 5.5 million short tons of annual capacity after a December 2025 expansion. Citizens Electric Corporation has served the plant, which was built with a 345,000-volt connection.
Overview
Amrize commissioned the production expansion of its Ste. Genevieve cement plant on December 16, 2025. The expansion adds 660,000 short tons of production capacity per year, increasing the plant's total capacity to 5.5 million short tons annually. The 4,000-acre site contains over 100 years' worth of limestone reserves. Production officially began on July 4, 2009, and the plant is home to the world's largest single-line kiln.
Profile
- Electricity and grid
- Citizens Electric Corporation serves large industrial customers including cement manufacturer Holcim in Ste. Genevieve. An electrical contractor reports providing 345,000 volts of power directly from the Ameren Rush Island Power Plant and building the plant's electrical infrastructure.
- Ownership and investment
- EPA's registry lists HOLCIM (US) INC as owner, and Amrize completed its 100% spin-off from Holcim on June 23, 2025. Holcim US announced an approximate $100 million investment in the plant in October 2023.
Facility
- Activity
- Type IL cement
- Industry
- Manufacturing
- Site type
- Facility
- Operating status
- Operating