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3M

838 Coatings, LLC

A-1 Grit Company

Ace Coating Company, Inc.

Accella Polyurethane Systems, LLC

Acrymax Technologies Inc.

Advanced Coating Systems, Inc.

AFP Inc.

AKZO Nobel Coatings, Inc.

Akzo Nobel Pulp and Performance Chemicals AB

Aldo Products Company, Inc.

American Iron & Steel Institute

American Standard Coatings

American WeatherStar

Anchor Coatings

APOC Gardner-Gibson, Inc.

Architectural Roof Coating

Arkema, Inc.

ASC Profiles- A BlueScope Steel Company

Asphalt Roofing Manufacturers Association (ARMA)

ATAS International, Inc.

BASF Corporation — Spray Polyurethane Foam Systems Business

Becker Specialty Corporation

Berridge Mfg. Company

Bitec, Inc.

Boral Roofing

Burkeline Roofing

Carlisle Construction Materials Incorporated

Cedar Shake and Shingle Bureau

CENTRIA

CertainTeed Corporation

Clay Tile Venture, Inc.

Conklin Company Inc.

Continental Coatings, Inc.

Covestro LLC

Custom-Bilt Metals

DaVinci Roofscapes

DECRA Roofing Systems

DERBIGUM

Dow Construction Chemicals

Dura Coat Products Inc.

Duro-Last Roofing, Inc.

EAGLE Roofing Products

Edge Adhesives, Inc

ERSystems

Everest Systems

Everroof Group International Corp.

Firestone Building Products

Flex Membrane International, Inc.

FSR Treatment, Inc.

GAF Materials Corporation

Garland Company, Inc.

GenFlex Roofing Systems

Gerard and Allmet

Hanover Architectural Products

Hanson Roof Tile

Harbin Tobice Green Coatings Co. Ltd.

Henry Company

Hy-Tech Thermal Solutions

IB Roof Systems

IKO Industries, Ltd.

Inland Coatings Corporation

Insulating Coatings Corporation

ITW Polymers Sealants North America

Johns Manville

Karnak Corporation

KM Coatings Manufacturing, Inc.

KST Coatings a Business Unit of Sherwin-Williams

LaPolla Industries, Inc.

Life Paint Corp.

Malarkey Roofing Products

Max Chemical

MBTechnology Inc.

M.C.A. Clay Roof Tile

Metacrylics (Instant Asphalt, Inc.)

Metal Building Manufacturers Association

Metal Construction Association

Metal Sales Manufacturing Corporation

Mule-Hide Products Co., Inc.

National Coatings Corporation

National Coil Coating Association

NCI Building Systems, LP

Neogard, Division of Jones-Blair

Noroo Coil Coatings Co., Ltd.

Old Country Millwork Inc.

Owens Corning

Petersen Aluminum Corporation

Pinturas Thermicas del Norte S.A. de C.V.

Polyglass USA

PPG Industries, Inc.

Premium Spray Products

Pro-Tech Products, Inc.

R.M. Lucas Company

Rare Manufacturing, Inc.

Rhino Linings Corporation

Roof Coatings Manufacturers Association (RCMA)

Saint-Gobain Performance Plastics

Seal Coatings

Sealoflex Inc.

Seaman Corporation

Shanghai Datong Tabernacle New Energy-saving Materials Co., Ltd

Sherwin Williams

Sika Corporation

Siplast

Skyline Building Systems, Inc.

Soprema Inc.

Southeastern Metals

Specialty Granules, Inc.

SPM Thermo-Shield, Inc.

SPRI

SR Products

Steelscape, Inc.

SWD Urethane Company

TAMKO Building Products Inc.

Tempo Chemicals & Solutions

ThermaCote, Inc.

Thermo Manufacturing

Tile Roofing Institute

Tremco, Inc.

Tropical Roofing Products Florida, LLC

Truco, Inc.

True Seal Inc.

United Asphalt Co. Inc.

United Duralume Products, Inc.

United Industrial Investments Company

United Structures of America

U.S. Ply, Inc.

US Silica

Volatile Free, Inc.

Western Colloid

Whirlwind Steel Building, Inc.

Winkler USA

Yung Chi Paint & Varnish Mfg. Co., Ltd.