Economic Development Success Stories

June 30, 2025

IKO – Bismark Granules

IKO, a global leader in the manufacturing and supply of residential shingles, commercial roofing, and waterproofing products, recently broke ground on a new facility for its subsidiary in Bismarck, Missouri.

The company is investing over $120 million in the new 220,000 sq. ft. facility and is set to create more than 50 new jobs.

Ameren Missouri worked closely with several partners to attract Bismarck Granules to Missouri and provided operational support to ensure reliable and resilient energy. Our partners included Missouri Partnership, the City of Bismarck, St. Francois County, St. Francois County Industrial Development Authority, SEMO Regional Planning Commission, and the Missouri Department of Economic Development.

"IKO’s significant expansion here in Missouri sends a powerful message to businesses looking for sites ready to power their growth,” said Tara Oglesby, vice president, energy solutions and business development for Ameren Missouri. “We’re committed to keeping our electric rates competitive while making strategic investments in reliability so that we are prepared for a wide variety of development across our service territory.”

IKO chose Bismarck for its highly skilled workforce, strategic central location, and excellent interstate connectivity — boosting both its U.S. operations and the local economy. The company plans to open the new facility in late 2026.