EX-21 6 a2191887zex-21.htm EXHIBIT 21
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Exhibit 21

BUILDING MATERIALS CORPORATION OF AMERICA
LIST OF SUBSIDIARIES

COMPANY
  STATE OF
INCORPORATION 		  FEIN#

Building Materials Corporation of America

   Delaware   22-3276290
 

BMCA Acquisition Inc. 

   Delaware   20-8048827
   

Elkcorp

   Delaware   20-8186490
     

Elk Premium Building Products, Inc. 

   Delaware   75-2302370
       

Elk Corporation of Texas

   Nevada   74-1925368
       

Elk Corporation of Alabama

   Delaware   75-1509396
       

Elk Corporation of Arkansas

   Arkansas   71-0327819
       

Elk Corporation of America

   Nevada   75-1613722
       

Elk Slate Products, Inc. 

   Delaware   20-5548796
       

Elk Performance Nonwoven Fabrics, Inc. 

   Delaware   32-0029409
       

Elk Composite Building Products, Inc. 

   Delaware   11-3657388
       

Elk VersaShield Building Solutions, Inc. 

   Delaware   20-5153676
       

RGM Products, Inc. 

   California   77-0336567
         

Ridgemate Manufacturing Company, Inc. 

   California   77-0471727
     

Elk Technology Group, Inc. 

   Delaware   32-0029403
       

Chromium Corporation

   Delaware   75-2838549
       

Lufkin Path Forward, Inc. 

   Texas   20-2498081
       

Elk Technologies, Inc. 

   Delaware   32-0029407
       

Midland Path Forward, Inc. 

   Nevada   75-2072853
     

Elk Group, Inc. 

   Nevada   75-2302368
       

Elk Group, LP(1)

   Texas   75-2734675

BMCA Gainesville LLC

   Delaware   20-4921692

BMCA Quakertown Inc. 

   Delaware   20-0837505

BMCA Insulation Products Inc. 

   Delaware   22-3275477

Building Materials Investment Corporation

   Delaware   20-5980312

Building Materials Manufacturing Corporation

   Delaware   22-3626208
   

HBP Acquisition LLC

   Delaware   20-3531649
   

BMCA Fresno LLC

   Delaware   20-8948045

GAF Leatherback Corp. 

   Delaware   22-3497242

GAF Materials Corporation (Canada)

   Delaware   22-3563280

GAF Premium Products Inc. 

   Delaware   22-3383680
   

Wind Gap Real Property Acquisition Corp

   Delaware   22-3383681

GAF Real Properties, Inc. 

   Delaware   22-2886550

GAFTECH Corporation

   Delaware   22-2811609

LL Building Products Inc. 

   Delaware   58-2394554

Pequannock Valley Claim Service Company, Inc. 

   Delaware   22-2911715

South Ponca Realty Corp. 

   Delaware   22-3063731
(1)
Elk Group, Inc. 1% General Partner and Elkcorp 99% Limited Partner.



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BUILDING MATERIALS CORPORATION OF AMERICA LIST OF SUBSIDIARIES