-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WZOzpNUZOYK0+THeMTq6+y3tI1mQMSsf5dodZGco+4LfmCk3Ol4/02k37vxbHwMC
 QqW9Dqs29X9BbuDoM5tq1g==

<SEC-DOCUMENT>9999999997-05-020387.txt : 20050422
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ACCESSION NUMBER:		9999999997-05-020387
CONFORMED SUBMISSION TYPE:	ARS
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041231
FILED AS OF DATE:		20050421
DATE AS OF CHANGE:		20050422
EFFECTIVENESS DATE:		20050421

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADA-ES INC
		CENTRAL INDEX KEY:			0001223112
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				841457335
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

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		FORM TYPE:		ARS
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50216
		FILM NUMBER:		05051392

	MAIL ADDRESS:	
		STREET 1:		8100 SOUTHPARK WAY B
		CITY:			LITTLETON
		STATE:			CO
		ZIP:			80120
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