Stephanie Riggs

Stephanie Riggs is President of US Methanol, LLC, headquartered in Charleston, West Virginia, with Liberty One manufacturing operations in Institute. Since joining the company in June 2025, she has led its commercial and operational activities, including the successful transition to a direct-to-market business model in 2026. Under her leadership, US Methanol continues to pursue sustainable growth while maintaining safe, reliable methanol production using regional natural gas feedstocks.

Before joining US Methanol, Stephanie spent more than 25 years in the industrial and medical gases industry, serving in leadership and strategic roles spanning finance, process safety and risk management, product management, commercial operations, and manufacturing operations. She combines technical expertise with a proven track record of operational excellence and business growth.

Stephanie holds a Bachelor of Science in Chemical Engineering from the University of Tennessee, Knoxville, and an MBA from National University. She is also a licensed Professional Engineer in Texas. Stephanie and her husband of 28 years have three adult children.