To transform byproducts and natural minerals into sustainable products that eliminate the greenhouse gas emissions from cement while making it stronger and more economical


To transform the cement industry into a net-zero carbon emitter – saving 4 billion tons annually of CO2 emissions


  • Integrity and Excellence in everything we do.
  • Customer Focused: Serve our customers through the highest quality products and services.
  • Health, Safety, and Sustainability: To promote a healthy work environment that includes respect for people and the environment.
  • Collaboration as a team to achieve our vision for the company.

Technology Leader

In 2020, Green Cement, LLC invented a method and chemistry that greatly enhances the reactivity of natural pozzolans. Natural pozzolans meet regional fly ash shortages.

Portland cement rapid set time now matched by green cement enhanced natural pozzolans without the carbon footprint.

Short-term strengths of green cement match Portland cement, while 28-day strengths are 20% stronger than Portland cement.

Green Cement, LLC Pozzolanic Cement

  • No carbon emissions
  • Strength performance equivalent
  • Lower cost
  • Improved flow characteristics

Our Team

Grant Quasha
Chairman & CEO, Eco Material Technologies

Grant Quasha is the former Chief Executive Officer for Green Cement, LLC. Prior to that, he oversaw investments and operations of GFG Alliance’s North American Metals, which employs 1,500 people and has revenues approaching $1 billion. He received his B.A. from Harvard College, Cum Laude, and an MBA with Distinction from Harvard Business School.

Clinton Pike
Executive Vice President, Technology

Clinton Pike had a varied career as a chemist and materials scientist before joining Eco Material. He developed and patented the milling system that is currently used at Green Cement, LLC’s plant in Texas. Pike has over 15 years of experience with Georgia Power and Southern Company in fuels and ash management and over 30 years in research and development with Headwaters, Oldcastle, and U.S. Concrete. Pike received his B.S. in Chemistry and Biology from Georgia Southwestern College.

Danny L. Gray, P.E.
Executive Vice President, Business Development

Danny Gray has more than 40 years’ service in the electric utility, engineering, and coal ash management industries. He manages strategic planning and business operations for Green Cement, LLC, an Eco Material company. Immediately prior to joining Green Cement, he served as Executive Vice President at Charah Solutions Inc. and Mineral Resource Technologies (a Cemex company). Gray served as past Chairman of the National Coal Council, a Federal Advisory Committee to the Department of Energy, and has testified before the Senate Committee on Environment and Public Works on behalf of the industry. He currently serves as Chairman of the Southern States Energy Board – Affiliate Companies. Gray received his B.S. in Civil Engineering with honors from Virginia Tech.

David McNitt
Director of Technology

20+ years in the cement industry managing quality, product development, and research. BA Chemistry, Northern Colorado.

Joe Brent
Operations Manager

Operations Manager with 20+ years of experience managing manufacturing and processing of construction materials, following his military service.

Myvan Huynh

10+ years in accounting for oil and gas manufacturing and production. BS Finance, California State.