Utility Members (25)

Ameren Missouri

American Electric Power (AEP)

Aurora Energy, LLC

Colorado Springs Utilities

Colstrip Energy Limited Partnership

Dairyland Power Cooperative

DTE Energy

Duke Energy Corporation

Evergy

Firstenergy Corp

Great River Energy

Indianapolis Power and Light (AES)

Kansas City Board of Public Utilities

LG&E and KU Services Company

Muscatine Power & Water

Nebraska Public Power District

NRG Energy, Inc

Prairie State Generating Company LLC

South Carolina Electric & Gas

Southern Company

Southern Illinois Power Cooperative

Talen Energy

Tennessee Valley Authority

Tri-State Generation & Transmission Assn, Inc.

WEC Business Services LLC

Marketer Members (12)

Boral Resources

Charah Solutions, Inc.

Kansas City Fly Ash LLC

Lafargeholcim (geocycle)

MRT CEMEX

National Minerals Corporation

Nebraska Ash

Salt River Materials Group

Separation Technologies, LLC

The SEFA Group

Waste Management

ZAG International Pte Ltd

Specialty Marketers (5)

Beneficial Reuse Management/Gypsoil

SCB International Holdings

Sphere One, Inc.

U.S. Minerals

USC Technologies

Associate Members (66)

AECOM

APTIM

ASH Mineral Solutions

Beneficiate: North America

Bloomsdale Excavating Co, Inc

Brad Cole Construction Co, Inc.

CALM Initiative

Cementitious Solutions LLC

Chesapeake Containment Systems

Civil & Environmental Consultants, Inc.

Dustmaster Enviro Systems

Ellis Global

Encap-It

Environmental Resources Management

Environmental Specialties International, Inc

GAI Consultants, Inc.

GEI Consultants, Inc

Georgia Pacific Gypsum LLC

Georgia Pacific Gypsum LLC

GHD Services Inc

Global Containment Solutions

Golder Associates

Gradient

Griffin Dewatering

Ground/Water Treatment & Technology, LLC

Haley & Aldrich, Inc.

Hallaton Environmental Linings

Hanson Professional Services

HDR

Hilltop Enterprises, Inc.

Hull & Associates, Inc.

Ish, Inc.

John Ward Inc.

Keller

Lhoist North America

MRR Southern

National Gypsum Company

Nelson Mullins Riley & Scarborough

Nu-Rock Technology USA

P. Cassels Law, PLLC

Periodic Products Inc

Philen Construction

Phillips and Jordan, Inc.

Quikrete Companies, LLC

R.J. Smith Construction, Inc.

RECON

Republic Services

Richard Kinch

RPM Solutions

S&ME, Inc

Saiia Construction Company, LLC

SCS Engineers

Sevenson Environmental Services Inc.

Silar Services Incorporated

SMI-PS, Inc.

Son-Haul, Inc.

Sonoash LLC

Stantec

Tarmac International Inc.

Tetra Tech

Trans Ash, Inc.

TRC Environmental Corporation

United States Gypsum Company

University of Kentucky

Waste Connections, Inc.

WOOD