UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: January 29, 2014 5:00 P.M.
Form: S-4
CIK: 0001587413
Company Name: Trinseo Materials Operating S.C. A.
File Number: 333-191460
CIK: 0001587231
Company Name: Trinseo Materials Finance, Inc.
File Number: 333-191460-24
CIK: 0001587232
Company Name: Styron Australia Pty Ltd
File Number: 333-191460-23
CIK: 0001587395
Company Name: Styron Deutschland GmbH
File Number: 333-191460-22
CIK: 0001587271
Company Name: Styron Canada ULC
File Number: 333-191460-21
CIK: 0001587230
Company Name: Styron LLC
File Number: 333-191460-20
CIK: 0001587229
Company Name: Styron US Holding, Inc.
File Number: 333-191460-19
CIK: 0001587394
Company Name: Styron Deutschland Anlagengesellschaft mbH
File Number: 333-191460-18
CIK: 0001587393
Company Name: Styron Luxco S.a r.l.
File Number: 333-191460-17
CIK: 0001587392
Company Name: Styron Holding S.a r.l.
File Number: 333-191460-16
CIK: 0001587265
Company Name: Styron Investment Holdings Ireland
File Number: 333-191460-15
CIK: 0001587262
Company Name: Styron Materials Ireland
File Number: 333-191460-14
CIK: 0001519061
Company Name: Trinseo S.A.
File Number: 333-191460-12
CIK: 0001587433
Company Name: Styron (Hong Kong) Ltd
File Number: 333-191460-11
CIK: 0001587442
Company Name: Styron Belgium B.V.B.A.
File Number: 333-191460-10
CIK: 0001587412
Company Name: Trinseo Materials S. a r.l.
File Number: 333-191460-09
CIK: 0001587411
Company Name: Styron Finance Luxembourg S.a r.l.
File Number: 333-191460-08
CIK: 0001587441
Company Name: Styron Netherlands B.V.
File Number: 333-191460-07
CIK: 0001587415
Company Name: Styron Holding B.V.
File Number: 333-191460-06
CIK: 0001587467
Company Name: Styron Europe GmbH
File Number: 333-191460-05
CIK: 0001587437
Company Name: Styron Sverige AB
File Number: 333-191460-04
CIK: 0001587829
Company Name: Styron Singapore Pte. Ltd.
File Number: 333-191460-03
CIK: 0001587832
Company Name: Styron Holdings Asia Pte. Ltd.
File Number: 333-191460-02
CIK: 0001587833
Company Name: Styron UK Ltd
File Number: 333-191460-01