Exhibit 21
HEADWATERS INCORPORATED
Subsidiaries
The ownership of each direct and indirect subsidiary is 100%, except where indicated below.
Building Products
Atlantic Shutter Systems, Inc., a South Carolina corporation
Chihuahua Stone LLC, a Utah limited liability company
Eldorado G-Acquisition Co., a Utah corporation
Eldorado SC-Acquisition Co., a Utah corporation
Eldorado Stone Acquisition Co., LLC, a Delaware limited liability company
Eldorado Stone Funding Co., LLC, a Utah limited liability company
Eldorado Stone LLC, a Delaware limited liability company
Eldorado Stone Operations LLC, a Utah limited liability company
Eldorado Stone Philippines, Inc., a Philippines corporation
FlexCrete Building Systems, LC, a Utah limited liability company, of which HRI is a 90% member
HCM FlexCrete, LLC, a Texas limited liability company
HCM Stone, LLC, a Utah limited liability company
HCM Utah, LLC., a Utah limited liability company
Headwaters Construction Materials, Inc., a Utah corporation
Headwaters Construction Materials, LLC, a Texas limited liability company
Inspire Services, LLC, a Michigan limited liability company
L-B Stone LLC, a Utah limited liability company
Metamora Products Corporation of Elkland, a Pennsylvania corporation
Metamora Products Corporation, a Michigan corporation
MTP, Inc., an Ohio corporation
Piedras Headwaters, S. de R.L. de C.V., a Mexican limited liability company
Tapco Europe Limited, formed in the United Kingdom
Tapco International Corporation, a Michigan corporation
Tapco Property Company, LLC, a Michigan limited liability company
Energy
American Lignite Energy, LLC, a Delaware limited liability company, of which Headwaters Energy Services Corp. is a 40% member
Blue Flint Ethanol LLC, a Delaware limited liability company
Covol Engineered Fuels, LC, a Utah limited liability company
Covol Fuels No. 2, LLC, a Utah limited liability company
Covol Fuels No. 3, LLC, a Utah limited liability company
Covol Fuels No. 4, LLC, a Utah limited liability company
Covol Fuels No. 5, LLC, a Utah limited liability company
Environmental Technologies Group, LLC, a Utah limited liability company
Evonik Headwaters Korea Co., Ltd., a Korean limited liability company, of which Headwaters Incorporated is a 50% member
Evonik Headwaters LLP, formed in the United Kingdom, of which Headwaters Incorporated is a 50% member
Headwaters CTL, LLC, a Utah limited liability company
Headwaters Energy Services Corp., a Utah corporation
Headwaters Ethanol Operators, LLC, a Utah limited liability company
Headwaters Heavy Oil, LLC, a Utah limited liability company
Headwaters Synfuel Investments, LLC, a Utah limited liability company
Headwaters Technology Innovation Group, Inc., a Utah corporation
HES Ethanol Holdings, LLC, a Utah limited liability company
1
Coal Combustion Products
Global Climate Reserve Corporation, a Utah corporation
Headwaters Resources Limited, formed in New Brunswick, Canada
Headwaters Resources, Inc., a Utah corporation
Headwaters Services Corporation, a Utah corporation
VFL Technology Corporation, a Pennsylvania corporation
2