EXHIBIT 21.1

SUBSIDIARIES OF THE REGISTRANT

Bayshore Industrial, Inc.

Courtenay Polymers Pty Ltd.

Fabri-Moulds Ltd.

ICO Europe BV

ICO Global Services, Inc.

ICO Holdings Australia Pty Ltd.

ICO Holdings New Zealand Ltd.

ICO Holland BV

ICO Italia Srl

ICO Minerals, Inc.

ICO Offshore

ICO P&O, Inc.

ICO Petrochemical Cayman Islands

ICO Polymers do Brasil Ltda.

ICO Polymers France SAS

ICO Polymers Hellas Ltd.

ICO Polymers North America, Inc.

ICO Polymers UK Ltd.

ICO Polymers, Inc.

ICO Scandinavia AB

ICO Technology, Inc.

ICO UK Ltd.

ICO Worldwide, LP

ICO Worldwide (UK), Ltd.

ICO Worldwide Tubular Services PTE Ltd.

Innovation Company, S.A. de C.V.

J.R. Courtenay (N.Z.) Ltd.

J.R. Courtenay Sdn Bhd

Rotec Chemicals, Ltd.

Lomic SCI

Soreco SAS

Swavasey Colours Ltd.

Tecron Industries Ltd.

Verplast Srl

Wedco Minerais Ltda.

Wedco Petrochemical, Inc.

Wedco Technology U.K. Ltd.

Wedco Technology, Inc.

Worldwide GP, LLC

Worldwide LP, LLC