Exhibit

Exhibit 21

PPG Industries, Inc.

And Consolidated Subsidiaries

Subsidiaries of the Registrant

December 31, 2017

Significant subsidiaries included in the 2017 consolidated financial statements of the Company are:



United States and Canada:		Jurisdiction of Incorporation or Organization	Percentage of Voting Power
	CG Holdings Manufacturing Co.	Michigan	100
	Cuming Microwave Corporation	Massachusetts	100
	Electra-Finish, Inc.	North Carolina	100
	I.V.C. Industrial Coatings, Inc.	Indiana	100
	MetoKote Canada Limited	Canada	100
	MetoKote Corporation	Delaware	100
	MetoKote Mexico Holdings, Inc.	Ohio	100
	PPG Architectural Finishes, Inc.	Delaware	100
	PPG Architectural Coatings Canada Inc.	Canada	100
	PPG Canada Inc.	Canada	100
	PPG Holdings Argentina USA LLC	Delaware	100
	PPG Holdings Latin America USA LLC	Delaware	100
	PPG Industries International, Inc.	Delaware	100
	PPG Industries Ohio, Inc.	Delaware	100
	PPG Industries Securities, LLC	Delaware	100
	PPG Kansai Automotive Finishes Canada, LP	Canada	60
	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 Crown Group Co.	Michigan	100
	The Glidden Supply Company LLC	Delaware	100
	Vanex, Inc.	Delaware	100

Latin America:
	Alermac Inversiones, S.A. de C.V.	Mexico	100
	Centro de Investigación en Polímeros, S.A. de C.V.	Mexico	100
	Comercial Mexicana de Pinturas, S.A. de C.V.	Mexico	100
	Comex Industrial Coatings, S.A. de C.V.	Mexico	100
	Consorcio Comex, S.A. de C.V.	Mexico	100
	Consorcio Latinoamericano, S.A.	Mexico	100
	Distribuidora Kroma, S.A. de C.V.	Mexico	100
	Empresa AGA, S.A. de C.V.	Mexico	100
	Fábrica de Pinturas Universales, S.A. de C.V.	Mexico	100
	Grupo Comex, S.A. de C.V.	Mexico	100
	MetoKote de Mexico, S. de R.L. de C.V.	Mexico	100
	Pinturerias del Istmo, S.A.	Panama	100
	Plásticos Envolventes, S.A. de C.V.	Mexico	100
	PPG ALESCO Automotive Finishes Mexico, S. de R.L. de C.V.	Mexico	60
	PPG AP Resinas, S.A. de C.V.	Mexico	100
	PPG Architectural Coatings (Puerto Rico) Inc.	Puerto Rico	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 Mexico, S.A. de C.V.	Mexico	100
	Viasa, S.A. de C.V.	Mexico	100

EMEA:
	Brown Brothers Distribution Limited	United Kingdom	100
	Deutek S.A.	Romania	100
	Dyrup A/S	Denmark	100
	Dyrup SAS	France	100
	EPIC Insurance Co. Ltd.	Bermuda	100
	Erlenbrunnen Grundstücksverwaltung GmbH	Germany	100
	Johnstone’s Paints Limited	United Kingdom	100
	Kalon Investment Company Limited	United Kingdom	100
	Kalon South Africa Proprietary Limited	South Africa	100
	Malcolm Enamellers ACP Limited	United Kingdom	100
	MetoKote Deutschland GmbH	Germany	100
	MetoKote UK Limited	United Kingdom	100
	Peintures de Paris SAS	France	99.94
	PPG AC - France SA	France	99.94
	PPG Architectural Coatings Ireland Limited	Ireland	100
	PPG Architectural Coatings UK Limited	United Kingdom	100
	PPG Cameroun SA	Cameroon	51.5
	PPG CEE Premazi (d.o.o.)	Slovenia	100
	PPG Coatings B.V.	The Netherlands	100
	PPG Coatings BVBA/SPRL	Belgium	100
	PPG Coatings Deutschland GmbH	Germany	100
	PPG Coatings Europe B.V.	The Netherlands	100
	PPG Coatings Manufacturing SARL	France	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 Support GmbH	Germany	100
	PPG Deutschland Sales & Services GmbH	Germany	100
	PPG Distribution S.A.S.	France	99.94
	PPG DYRUP, S.A.	Portugal	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 Guadeloupe SAS	Guadeloupe	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 Chemicals B.V.	The Netherlands	100
	PPG Industries Europe Sàrl	Switzerland	100
	PPG Industries France S.A.S.	France	100
	PPG Industries Italia S.r.l.	Italy	100
	PPG Industries Kimya a Sanayi VE Ticaret AS	Turkey	100
	PPG Industries Lackfabrik GmbH	Germany	100
	PPG Industries Lipetsk LLC	Russia	100
	PPG Industries LLC	Russia	100
	PPG Industries Middle East FZE	U.A.E	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 & Services S.r.l.	Italy	100
	PPG Kansai Automotive Finishes U.K. LLP	United Kingdom	60
	PPG Luxembourg Finance S.àR.L.	Luxembourg	100
	PPG Luxembourg Holdings S.àR.L.	Luxembourg	100
	PPG Polifarb Cieszyn S.A.	Poland	100
	PPG Réunion SAS	La Reunion	51
	PPG Service Sud S.r.l.	Italy	100
	PPG Switzerland GmbH	Switzerland	100
	PPG Trilak Kft.	Hungary	100
	PPG Univer S.P.A.	Italy	100
	Prominent Paints Proprietary Limited	South Africa	100
	Revocoat France SAS	France	100
	Revocoat Holding SAS	France	100
	Revocoat Iberica SLU	Spain	100
	Schoch Holding AG	Switzerland	100
	Sealants Europe SAS	France	66
	Sigma Marine & Protective Coatings Holding B.V.	The Netherlands	100
	SigmaKalon (BC) UK Limited	United Kingdom	100
	SigmaKalon Middle East B.V.	The Netherlands	63.2
	SigmaKalon UK Holding Limited	United Kingdom	100
	Société des Anciens Etablissements Peppler	France	99.94

Asia:
	Foshan Bairun Chemicals Co., Ltd.	China	100
	IVC Nan Sha 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 (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 COATINGS SINGAPORE PTE. LTD.	Singapore	100
PPG Industries (Korea) Ltd.	South Korea	100
PPG Industries (Singapore) Pte., Ltd.	Singapore	100
PPG Industries Australia PTY Limited A.C.N. 055 500 939	Australia	100
PPG Industries New Zealand Limited	New Zealand	100
PPG Japan Ltd.	Japan	100
PPG Management (Shanghai) Co., Ltd.	China	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 SSC Co., Ltd.	South Korea	80.01
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
Spraylat Coatings (Shanghai) Limited	China	100