Barretts Minerals Inc

Nanocor Inc

Chemical Manufacturing

Arlington Heights, Illinois

Nuclear Fuels Inc.

Nuclear Electric Power Generation

Sandfire Resources America Inc

Mining

Mitsubishi Corporation (Americas)

International Trade and Development

New York, New York

Riverspan Partners

Venture Capital and Private Equity Principals

Chicago, IL

Anschutz Exploration Corporation

Oil and Gas

Denver, Colorado

Mitsui & Co. (U.S.A.), Inc. | ("Mitsui USA")

International Trade and Development

New York, New York

Minerals Technologies Inc.

Manufacturing

Q5

Business Consulting and Services

London, England

Berkshire Hathaway

Insurance