Name

Jurisdiction of Incorporation

HTM Holdings, Inc.

Delaware

940862 Ontario Inc.

Ontario, Canada

Qualtron, Inc.

Massachusetts

Radio Componentes de Mexico, S.A. de S.V.

Mexico

SMTC Asia Ltd.

Hong Kong

SMTC de Chihuahua S.A. de C.V.

Mexico

SMTC Ireland Company

Ireland

SMTC Manufacturing Corporation of California

California

SMTC Manufacturing Corporation of Canada

Ontario, Canada

SMTC Manufacturing Corporation of Colorado

Delaware

SMTC Manufacturing Corporation of Massachusetts

Massachusetts

SMTC Manufacturing Corporation of North Carolina

North Carolina

SMTC Manufacturing Corporation of Texas

Texas

SMTC Manufacturing Corporation of Wisconsin

Wisconsin

SMTC Mex Holdings, Inc.

Delaware

SMTC Nova Scotia Company

Nova Scotia, Canada

SMTC R&D Teoranta

Ireland

SMTC Teoranta

Ireland