<SEC-DOCUMENT>0000215457-18-001202-index.html : 20180119
<SEC-HEADER>0000215457-18-001202.hdr.sgml : 20180119
<ACCEPTANCE-DATETIME>20180119135557
ACCESSION NUMBER:		0000215457-18-001202
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180119
DATE AS OF CHANGE:		20180119

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Advanced Emissions Solutions, Inc.
		CENTRAL INDEX KEY:			0001515156
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				275472457
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87576
		FILM NUMBER:		18536389

	BUSINESS ADDRESS:	
		STREET 1:		640 PLAZA DRIVE, SUITE 270
		CITY:			HIGHLANDS RANCH
		STATE:			CO
		ZIP:			80129
		BUSINESS PHONE:		720-598-3500

	MAIL ADDRESS:	
		STREET 1:		640 PLAZA DRIVE, SUITE 270
		CITY:			HIGHLANDS RANCH
		STATE:			CO
		ZIP:			80129

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BlackRock Inc.
		CENTRAL INDEX KEY:			0001364742
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		IRS NUMBER:				320174431
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		55 EAST 52ND STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		212-810-5300

	MAIL ADDRESS:	
		STREET 1:		55 EAST 52ND STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BlackRock, Inc.
		DATE OF NAME CHANGE:	20060929

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	New BlackRock, Inc.
		DATE OF NAME CHANGE:	20060601
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>us00770c1018_011718.txt
<TEXT>
Document 1 - file: us00770c1018_011718.txt

</DOCUMENT>
</SEC-DOCUMENT>