Dean E. Sukowatey, Chairman:

Dean Sukowatey served as Chairman since January 2006. He has 25 years of experience on Wall Street as a broker, trader, fund manager and consultant at Merrill Lynch, Paine Webber, Lehman Brothers. For more than five years prior to becoming AllEnergy’s president, Dean managed two private funds and provided consulting and investment banking services. He is the founder of AllEnergy Corporation and AllEnergy Sand LLC.

William F. Holst, III Chief Operating Officer:

Bill Holst bought his first backhoe and truck more than 30 years ago, when he entered the excavation, sand, and gravel business. At that time he operated only a dry screening plant and two pit locations. In 1979 he opened Holst Excavating, Inc., and over the years expanded to 11 pits across Minnesota and Wisconsin, three wash plants, and three crushing spreads; complete with the requisite heavy equipment.

In 2000, with production at one million tons of material annually, Bill sold the business to Aggregate Industries, now owned by Holcim Group, and entered into a lease for the pit properties.

Since 2009, Holst has operated an aggregate wash plant in Hager City, Wisconsin, and runs a pre-screening operation in the same area with a fleet of 25 trucks. Bill remains actively involved in the sand and gravel business today, and projects great optimism for the future of the industry.

Don Vry, Mining Engineer:

Don Vry is a 35 year mining veteran specializing in mine planning, operations, facility and plant design, rail transportation, construction, business development, process evaluation and efficiencies. Don Vry was a managing partner of Meridian Aggregate Company, sold to Martin Marietta.

Don Vry
Boards and Professional Affiliations
Meridian Aggregate Board of Directors
Superior Minerals Board of Directors
Kiewit / Meridian Joint Venture Management Committee
Registered Professional Engineer
Society of Professional Engineers
National Society of Mining Engineers
National Society of Professional Engineers
Aggregate and Ready Mix of Minnesota board member


Christopher H. Drossos, Chief Engineer:

Mr. Drossos is a highly experienced executive with over 35 years of experience in leading diverse teams of professionals in highly competitive industries and fast-paced environments to successful project completions. He has a strong technical background and entrepreneurial business development skills with hands-on experience in strategic planning, project management, systems engineering strategies, operations and facilities systems design, construction management and fabrication and process plant management.

In 1983, Mr. Drossos established Hadley Construction Company, Inc., a full service General Contractor serving Florida and the Bahamas. The company specializes in fully integrated design-build delivery of projects with expertise that spans industrial, commercial, military and civil infrastructure.

Mr. Drossos is a member of the National Society of Professional Engineers and the Florida Engineering Society. Mr. Drossos earned his Bachelors of Industrial Engineering from the Georgia Institute of Technology.

Clive C. Aston, Ph.D., Director of Finance:

Dr. Aston has over 35 years of experience in project and trade finance at Citibank and Canadian Imperial Bank of Commerce. He has authored 18 publications and monographs for various Governments, such as the United Kingdom, Canada, and the United Nations. Dr. Aston received his Ph.D. in economics from the London School of Economics.

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