Company Name

​

Place of Incorporation/
Organization

​

% Ownership

​

​

​

​

​

Argan, Inc. (“AGX”)

​

​

Delaware

​

Parent

100%-Owned Subsidiaries of AGX

​

​

​

​

​

Gemma Power Systems, LLC (“GPS”)

​

​

Connecticut

​

100%

Gemma Power Hartford, LLC

​

​

Connecticut

​

100%

Gemma Power, Inc.

​

​

Connecticut

​

100%

Southern Maryland Cable, Inc.

​

​

Delaware

​

100%

AGX International Limited (“AGXI”)

​

​

Ireland

​

100%

Atlantic Projects Company, Inc.

​

​

New York

​

100%

TRC Acquisition, LLC (“TRCA”)

​

​

Delaware

​

100%

100%-Owned Subsidiaries of GPS

​

​

​

​

​

Gemma Renewable Power, LLC

​

​

Delaware

​

100%

Gemma Plant Operations, LLC

​

​

Delaware

​

100%

100%-Owned Subsidiary of TRCA

​

​

​

​

​

The Roberts Company, Inc.

​

​

Delaware

​

100%

100%-Owned Subsidiary of AGXI

​

​

​

​

​

Atlantic Projects Company Limited (“APCL”)

​

​

Ireland

​

100%

100%-Owned Subsidiary of APCL

​

​

​

​

​

Atlantic Projects Company (UK) Limited

​

​

United Kingdom

​

100%

Atlantic Power Contractors Limited

​

​

Hong Kong

​

100%

​

​

​

​

​