EXHIBIT 21.1

SUBSIDIARIES OF THE REGISTRANT

Bayshore Industrial, L.P.

Bayshore Industrial G.P., L.L.C.

Bayshore Industrial L.P., L.L.C.

Courtenay Polymers PTY Ltd.

Fabri-Moulds Ltd.

ICO Europe B.V.

ICO Global Services, Inc.

ICO Holdings Australia Pty Ltd.

ICO Holdings New Zealand Ltd.

ICO Holland B.V.

ICO Minerals, Inc.

ICO Offshore

ICO P&O, Inc.

ICO Petrochemicals Cayman Islands

ICO Polymers do Brasil Ltda.

ICO Polymers France SAS

ICO Polymers Hellas Ltd.

ICO Polymers Italy S.R.L.

ICO Polymers North America, Inc.

ICO Polymers UK Ltd.

ICO Polymers, Inc.

ICO Scandinavia AB

ICO Technology Inc.

ICO UK Ltd.

ICO Worldwide, L.P.

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.

SCI Lomic

Soreco SAS

Swavasey Colours Ltd.

Tecron Industries Ltd.

Wedco Minerais Ltda.

Wedco Petrochemical, Inc.

Wedco Technology U.K. Ltd.

Wedco Technology, Inc.

Worldwide GP, L.L.C.

Worldwide LP, L.L.C.