Exhibit 21

PPG Industries, Inc.

And Consolidated Subsidiaries

Subsidiaries of the Registrant

December 31, 2012

Significant subsidiaries included in the 2012 consolidated financial statements of the Company are:

United States:		Percentage of Voting Power
	Pinetree Stockholding Corporation - Delaware	100
	PPG Architectural Finishes, Inc. - Delaware	100
	PPG Capital LLC - Delaware	100
	PPG Industries Fiber Glass Products, Inc. - Delaware	100
	PPG Industries International, Inc. - Delaware	100
	PPG Industries Ohio, Inc. - Delaware	100
	PPG Industries Securities, Inc. - Delaware	100
	PPG Kansai Automotive Finishes U.S., LLC - Delaware	60
	PRC-DeSoto International, Inc. - California	100
	Sierracin Corporation - Delaware	100
	Sierracin/Sylmar Corporation - California	100
	The CEI Group, Inc. - Pennsylvania	75
	Transitions Optical, Inc. - Delaware	51
Other Americas:
	American Finishes Inversiones S.A. - Chile	100
	PPG ALESCO Automotive Finishes Mexico, S. de R.L. de C.V. - Mexico	60
	PPG Canada Inc. - Canada	100
	PPG Industrial do Brasil - Tintas E. Vernizes - Ltda. - Brazil	100
	PPG Industries Argentina S.R.L. - Argentina	100
	PPG Industries Chile S.A. - Chile	100
	PPG Industries Colombia Ltda. - Colombia	100
	PPG Industries de Mexico, S.A. de C.V. - Mexico	100
	PPG Kansai Automotive Finishes Canada, LP - Canada	60
	Transitions Optical do Brasil Limitada - Brazil	51
	Varossieau Suriname NV - Suriname	51.01
EMEA:
	Brown Brothers Distribution Limited - United Kingdom	100
	Compagnie Equatoriale des Peintures - Cameroon	51.44
	Dyrup A/S - Denmark	100
	Dyrup SAS - France	100
	Dyrup SP. Z O.O. - Poland	100
	EPIC Insurance Co. Ltd. - British Virgin Islands.	100
	Gabonaise de Peintures et Laques - Gabon	51.01
	Intercast Europe S.r.l. - Italy	100
	Johnstone's Paints Limited - United Kingdom	100
	Kalon Investment Company Limited- United Kingdom	100
	Kalon South Africa Proprietary Limited - South Africa	100
	La Seigneurie Caraibes - Guadeloupe	100

La Seigneurie Ocean Indien - La Reunion	51
Peinture de Paris SAS - France	99.95
PPG (Austria) Handels GmbH - Austria	100
PPG AC - France SA - France	99.95
PPG Architectural Coatings UK Limited - United Kingdom	100
PPG Auto Refinish AG - Switzerland	100
PPG Coatings B.V. - The Netherlands	100
PPG Coatings Belux N.V. - Belgium	100
PPG Coatings BVBA/SPRL - Belgium	100
PPG Coatings Danmark AS - Denmark	100
PPG Coatings Deutschland GmbH - Germany	100
PPG Coatings Europe B.V. - The Netherlands	100
PPG Coatings Nederland BV - The Netherlands	100
PPG Coatings S.A. - France	99.9
PPG Coatings South Africa (Pty) Ltd. - South Africa.	100
PPG Deco Czech a.s. - Czech Republic	100
PPG Deco Polska sp. z.o.o. - Poland	100
PPG Deco Slovakia, s.r.o. - Slovakia	100
PPG Deutschland Business Suport GmbH - Germany	100
PPG Deutschland Sales & Services GmbH - Germany	100
PPG Distribution S.A.S. - France	99.95
PPG Dr. Schoch AG - Switzerland	100
PPG Europe B.V. - The Netherlands	100
PPG Finance B.V. - The Netherlands	100
PPG France Business Support S.A.S. - France	100
PPG France Manufacturing S.A.S. - France	100
PPG Holdco SAS - France	100
PPG Holdings (U.K.) Limited - United Kingdom	100
PPG Ibérica, S.A. - Spain	100
PPG Ibérica Sales & Services, S.L. - Spain.	100
PPG Industrial Coatings B.V. - The Netherlands	100
PPG Industries (UK) Ltd - United Kingdom	100
PPG Industries Belgium B.V.B.A. - Belgium	100
PPG Industries Chemicals B.V. - The Netherlands	100
PPG Industries Europe Sàrl - Switzerland	100
PPG Industries Fiber Glass B.V. - The Netherlands	100
PPG Industries France S.A.S. - France	100
PPG Industries Italia S.p.A. - Italy	100
PPG Industries Kimya a Sanayi VE Ticaret AS - Turkey	100
PPG Industries Lackfabrik GmbH - Germany	100
PPG Industries Netherlands B.V. - The Netherlands	100
PPG Industries Poland Sp. Z.o.o. - Poland	100
PPG Italia Business Support S.r.l - Italy	100

	PPG Italia Sales & Service S.r.l. - Italy.	100
	PPG Luxembourg Finance S.àR.L. - Luxembourg	100
	PPG Luxembourg Holdings S.àR.L. - Luxembourg	100
	PPG Polifarb Cieszyn S.A. - Poland	100
	PPG Retail Europe - France	99.95
	PPG Service Sud S.r.l. - Italy	100
	PPG-Helios Limited (d.o.o.) - Slovenia	60
	Prominent Paints Proprietary Limited - South Africa	100
	Sigma Marine & Protective Coatings Holding B.V. - The Netherlands	100
	SigmaKalon (BC) UK Limited - United Kingdom	100
	SigmaKalon UK Holding Limited - United Kingdom	100
	Societe des Anciens Etablissements Peppler - France	99.95
	Tintas DYRUP, S.A. - Portugal	100
	Transitions Optical Holdings B.V. - The Netherlands	51
	Transitions Optical Limited - Ireland	51
	Trilak Festékgyartó Korlatolt Felelösségü Tarsasag - Hungary	100
Asia:
	Foshan Bairun Chemicals Co., Ltd. - China.	100
	PPG Aerospace Materials (Suzhou) Co. Ltd. - China	100
	PPG Asian Paints Private Ltd. - India	50
	PPG Coatings (Hong Kong) Co., Limited - Hong Kong	100
	PPG Coatings (Kunshan) Co., Ltd. - China	100
	PPG Coatings (Malaysia) Sdn. Bhd. - Malaysia	100
	PPG Coatings (Shanghai) Co., Ltd. - China	100
	PPG COATINGS (SINGAPORE) PTE. LTD - Singapore	100
	PPG Coatings (Suzhou) Company Ltd. - China	100
	PPG Coatings (Thailand) Co., Ltd. - Thailand	100
	PPG Coatings (Tianjin) Co., Ltd. - China	100
	PPG Coatings (Wuhu) Company, Ltd. - China	100
	PPG Coatings (Zhangjiagang) Co., Ltd. - China	100
	PPG Industries (Korea) Ltd. - South Korea	100
	PPG Industries (Singapore) Pte., Ltd. - Singapore	100
	PPG Industries Australia PTY Limited - Australia	100
	PPG Industries New Zealand Limited - New Zealand	100
	PPG Japan Ltd.- Japan	100
	PPG Packaging Coatings (Suzhou) Co., Ltd. - China	100
	PPG Paints Trading (Shanghai) Co., Ltd. - China	100
	PPG PERFORMANCE COATINGS (HONG KONG) LIMITED - Hong Kong	100
	PPG Performance Coatings (Malaysia) Sdn. Bhd. - Malaysia	100
	PPG PMC Japan Co., Ltd. - Japan	95
	PPG SSC Co., Ltd. - South Korea	60
	PRC-Desoto Australia Pty Ltd. - Australia	100

Protec Pty Ltd. A.C.N. 007 857 392 - Australia	100
PT. PPG Coatings Indonesia - Indonesia	100
Sikar (Shanghai) Trading Co. Ltd. - China	100
Solarlens Co., Ltd. - Thailand	100
Taiwan Chlorine Industries Ltd. - Taiwan	60
Transitions Optical (S) Pte. Ltd - Singapore	51
Transitions Optical (Thailand) Ltd. - Thailand	51
Transitions Optical Philippines, Inc. - Philippines	51
Transitions Optical PTY Ltd. A.C.N. 067 278 139 - Australia	51