Document:

Contribution Agreement dated May 27, 2011

 Exhibit 10.87 
 CONTRIBUTION AGREEMENT 
 This CONTRIBUTION AGREEMENT (this
“Agreement”), dated as of May 27, 2011, between ADA-ES, Inc., a Colorado corporation (“ADA-ES”), and NexGen Refined Coal, LLC, a Wyoming limited liability company (“NGRC”, and collectively with
ADA-ES, the “Guarantors” and each a “Guarantor”). 
 PRELIMINARY STATEMENTS

 WHEREAS, ADA-ES has entered into a Limited Guarantee (the “ADA-ES Guarantee”), dated as of
May 27, 2011, in favor of GSFS Investments I Corp., a Delaware corporation (the “Guaranteed Party”), in connection with indemnification obligations owed by Clean Coal Solutions, LLC, a Colorado limited liability company
(“CCS”), to the Guaranteed Party under that certain Class B Unit Purchase Agreement (the “Purchase Agreement”), dated as of May 27, 2011, between the Company and the Guaranteed Party. 

WHEREAS, NGRC has entered into a Limited Guarantee (the “NGRC Guarantee”, and collectively with the ADA-ES Guarantee,
the “Guaranties” and each a “Guarantee”), dated as of May 27, 2011, in favor of the Guaranteed Party, in connection with indemnification obligations owed by the Company to the Guaranteed Party under the
Purchase Agreement; and 
 WHEREAS, the Guarantors desire to allocate and delegate amongst themselves the obligations to the
Guaranteed Party that may arise under any of the Guaranties. 
 NOW, THEREFORE, the Guarantors agree as follows: 

SECTION 1. Defined Terms. The capitalized terms defined in the preamble and preliminary statements of this Agreement shall have
the respective meanings specified therein and the following terms shall have the following meanings: 
 “Contributing
Guarantor” means with respect to a Guarantor (an “Obligated Guarantor”) that becomes obligated under its respective Guarantee to make any payment to the Guaranteed Party, each other Guarantor. 

“Contributing Share” means with respect to a Contributing Guarantor, a percentage, the numerator of which is one and the
denominator of which is the number of Contributing Guarantors plus one. 
 SECTION 2. Agreement to Contribute. The
Guarantors agree that if any Guarantor becomes and Obligated Guarantor, each Contributing Guarantor shall be required to contribute its Contributing Share to such payment owed to the Guaranteed Party promptly within ten (10) days following
notice from the Obligated Guarantor that such contribution is due. 

 SECTION 3. Notices. All notices and other communications under this Agreement shall
be in writing and delivered (a) personally; (b) by registered or certified mail with postage prepaid, and return receipt requested; (c) by recognized overnight courier service with charges prepaid; or (d) by confirmed facsimile
or electronic mail transmission, directed to the intended recipient as follows: 
 If to ADA-ES: 

ADA-ES, Inc. 

8100 SouthPark Drive, Unit B 
 Littleton, CO 80120 
 Attn: Dr. Michael Durham 

Fax: (303) 734-0330 
 Email address: miked@adaes.com 
 If to NGRC: 

NexGen Refined Coal, LLC 
 3300 South Parker Road, Suite 310 
 Aurora, CO 80014 

Attn: Charles S. McNeil, President 
 Fax: (303) 751-9210 
 Email address: cmcneil@nexgen-group.com 

SECTION 4. Pledge of Interests in CCS. Each party hereby pledges all right, title and interest in and to their membership
interests in CCS to secure all amounts that may become owing hereunder. 
 SECTION 5. Amendment. This Agreement may not
be modified, amended, terminated or revoked, in whole or in part, except in writing signed by each of the Guarantors. 
 SECTION
6. Successors and Assigns. This Agreement shall be binding upon and shall inure to the benefit of each Guarantor and each of their respective successors and permitted assigns. This Agreement may only be assigned by a Guarantor in connection
with an assignment by such Guarantor of its respective Guarantee. 
 SECTION 7. GOVERNING LAW; VENUE AND JURISDICTION; WAIVER
OF JURY TRIAL. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF COLORADO , UNITED STATES OF AMERICA, WITHOUT ANY REFERENCE TO CONFLICT OF LAWS PRINCIPLES. THE GUARANTORS HEREBY IRREVOCABLY SUBMIT TO
THE JURISDICTION OF ANY STATE COURT IN THE COUNTY OF ARAPAHOE, STATE OF COLORADO WITH RESPECT TO ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT AND CONSENT TO THE SERVICE OF PROCESS IN ANY MANNER PERMITTED BY LAW. EACH
GUARANTOR HERETO IRREVOCABLY AND UNCONDITIONALLY WAIVES TRIAL BY JURY IN ANY ACTION, SUIT OR PROCEEDING RELATING TO A DISPUTE AND FOR ANY COUNTERCLAIM WITH RESPECT THERETO. 
 [Remainder of page intentionally left blank.] 

  
 2 

 IN WITNESS WHEREOF, the Guarantors have caused this Agreement to be executed and delivered
as of the date first written above. 
  

			
	 ADA-ES, INC.

		
	By:	 	 /s/ Mark H. McKinnies

	Name:	 	Mark H. McKinnies
	Title:	 	SVP and CFO
	
	 NEXGEN REFINED COAL, LLC

		
	By:	 	NexGen Refined Coal Holdings, LLC, its manager
		
	By:	 	NexGen Synfuel Management, Inc., its manager
		
	By:	 	 /s/ Thomas A. Ostlund

	Name:	 	Thomas A. Ostlund
	Title:	 	PresidentAmendment to 2005 Stock Incentive Plan, Effective May 18, 2011

 Exhibit 10.1 
 Amendment to 2005 Stock Incentive Plan 
 1. Recitals.
Pursuant to corporate resolution and subject to shareholder approval, Scott’s Liquid Gold-Inc. wishes to amend the Scott’s Liquid Gold-Inc. 2005 Stock Incentive Plan (the “Plan”) by increasing by 1,500,000 the number of shares
available under the Plan from 1,500,000 shares to 3,000,000 shares. 
 2. Amendment of Plan. The following
amendment to the Plan is adopted, effective as provided in Paragraph 3 below: 
 The Plan is hereby amended to revise the
first sentence of Section 4.1 of the Plan to read in its entirety as follows: 
  

	 	4.1	Plan Limit. Subject to the provisions of Section 4.4, the aggregate number of shares of Common Stock that may be issued under Awards granted pursuant
to the Plan shall not exceed 3,000,000 shares, less the number of shares issued after May 6, 2008 as a result of the exercise of stock options under the 1997 Stock Option Plan and the 1998 Stock Option Plan of the Company.

 3. Effective Date. The Effective Date of this Amendment is May 18, 2011. 

4. Terms and Conditions of Plan. Except for the amendment in paragraph 2, all terms and conditions of the Plan
are unamended and shall remain in full force and effect.FIFTH AMENDMENT TO OFFICE LEASE AGREEMENT

 Exhibit 10.4F 
 FIFTH AMENDMENT TO OFFICE LEASE AGREEMENT 
 DONELSON CORPORATE CENTRE 

THIS FIFTH AMENDMENT TO OFFICE LEASE AGREEMENT (this “Amendment”) is made as of February 11th, 2011 by and among Donelson
Corporate Centre, L.P., a Tennessee limited partnership (“Landlord”) and The Active Network, Inc., a Delaware Corporation, successor in interest to Automated License Systems, Inc., a Tennessee corporation (“Tenant”), under the
following circumstances: 
 A.    Landlord and Tenant have entered into that certain Office Lease Agreement
dated as of September 24, 1999 (the “Lease”), whereby Landlord leases to Tenant approximately 20,439 rentable square feet of space (the “Premises”) on the third floor of Building Two, Donelson Corporate Centre, 3055 Lebanon
Road, Davidson County, Tennessee. 
 B.    Landlord, Tenant and Guarantors have amended
that certain Office Lease Agreement dated as of September 24, 1999 by entering into the First Amendment to Office Lease Agreement dated as of April 28th, 2005 (“the First Amendment”) and Landlord, Tenant and Guarantors have further amended that certain Office
Lease Agreement by entering into the Second Amendment to Office Lease Agreement dated as of July 1, 2005 (“the Second Amendment”) and Landlord, Tenant and Guarantors have further amended that certain Office Lease Agreement by entering
into the Third Amendment to Office Lease Agreement dated as of January 10, 2007, and Landlord and Tenant have further amended that certain Office Lease Agreement by entering into the Fourth Amendment to Office Lease Agreement dated as of
March 25th, 2008, the total Net Rentable Area of the
Premises is 32,546 square feet. 
 C.    Landlord and Tenant wish to further amend the Lease in order to
amend the term and Tenant Improvement Allowance of the Premises and to modify certain other terms of the Lease as set forth herein. 
 NOW
THEREFORE, in consideration of the agreements and covenants hereinafter set forth, Landlord and Tenant agree and acknowledge that the Lease is amended as follows: 
 1.    Defined Terms. Any capitalized term not expressly defined in this Amendment shall have the definition for such term set forth in the Lease. 

2.    Term. Upon the execution of this Amendment the parties shall execute Exhibit “C” attached
hereto and incorporated herein, which shall replace Exhibit C attached to the original Lease. On June 1, 2011 a new eighty four month term shall commence and said term shall terminate unless extended pursuant to the terms of any remaining
renewal options. The current Office Lease Agreement as amended shall remain in full force and effect until June 1, 2011. 

 3.    Rent. Tenant shall pay Base Rental for the Premises
commencing June 1, 2011 (“The Fifth Amendment Commencement Date”) and continuing for eighty four (84) months terminating on May 31st, 2018 as follows: 

 

													
	Year	  	Rate	 	  	Per Month	 	  	Per Annum	 
	 June 1, 2011-May 31, 2012
	  	$	16.50	  	  	$	44,750.75	  	  	$	537,009.00	  
	 June 1, 2012-May 31, 2013
	  	$	16.83	  	  	$	45,645.77	  	  	$	547,749.24	  
	 June 1, 2013-May 31, 2014
	  	$	17.17	  	  	$	46,558.68	  	  	$	558,704.16	  
	 June 1, 2014-May 31, 2015
	  	$	17.51	  	  	$	47,489.85	  	  	$	569,878.20	  
	 June 1, 2015-May 31, 2016
	  	$	17.86	  	  	$	48,439.65	  	  	$	581,275.80	  
	 June 1, 2016-May 31, 2017
	  	$	18.22	  	  	$	49,408.44	  	  	$	592,901.28	  
	 June 1, 2017-May 31, 2018
	  	$	18.58	  	  	$	50,396.61	  	  	$	604,759.32	  

 4.    Term. Upon the execution of this Amendment, the parties shall execute
Exhibit C, attached hereto and incorporated herein, which shall replace Exhibit C attached to the original Lease. Exhibit C attached hereto, once executed by the parties, shall set for the new term for this Amendment. 

5.    Tenant Improvements. Tenant accepts the Additional Premises “as is, where is”. The Tenant
Improvement Allowance for the term of the Fifth Amendment shall be $300,000.00. Said allowance shall be utilized for improvements to the demised premises. 
 6.    Continuing Effect; Conflict. (a) Except as amended hereby, the Lease shall remain in full force and effect, including without limitation, the provisions regarding
expiration date of the initial term of the Lease and any rights that Tenant may have to extend or terminate early the term thereof. 
 (b) In the event of a conflict between the terms of the Lease and the terms of this Amendment, the terms of this Amendment shall control. 

 THIS AMENDMENT is signed as of the date first above written. 

 

			
	LANDLORD:
	
	Donelson Corporate Centre, L.P.
		
	By:	 	JS Development, LLC, general partner
		
	By:	 	 /s/ Floyd Shechter

		 	     Floyd Shechter
		 	     Managing Member
	
	 TENANT:

	
	 The Active Network, Inc.,
 as successor in interest to Automated License Systems, Inc.

		
	By:	 	 /s/ Scott Mendel

	 Name: Scott Mendel

	 Title: CFO

 EXHIBIT C — COMMENCEMENT DATE AGREEMENT 

This Agreement is made and entered into as of the 11th day of February, 2011 between Donelson Corporate Centre, L.P.
(“Landlord”) and The Active Network, Inc. as successor in interest to Automated License Systems, INC. (“Tenant”), and shall be attached to and made a part of that certain Fifth Amendment to Lease between Landlord and Tenant of
even date (the “Fifth Amendment”). Pursuant to the provisions of the Lease (as defined in and amended by the Fifth Amendment), Landlord and Tenant intending to be legally bound hereby, agree to the following: 

a.     The Commencement Date of the Lease, for the additional Term is the 1st day of June, 2011. 

b.     Tenant agrees that, as of and through the date hereof, Landlord has fully and timely complied with and performed each and
every of its obligations as set forth in the Lease and that Tenant has no claims or causes of action against Landlord whatsoever and has no right to any setoffs against any and all sums due Landlord. 

IN WITNESS WHEREOF, the parties have duly executed this supplement to the Lease as of the day and year first above written 

 

			
	LANDLORD:
	
	Donelson Corporate Centre, L.P.
	By:	 	JS Development, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Floyd Shechter

		 	     Floyd Shechter
	Title:	 	Managing Member
	
	TENANT:
	
	 The Active Network, Inc.,
 as successor in interest to
 Automated License Systems, Inc.

	
	 By: /s/ Scott Mendel

	Name: Scott Mendel
	Title: CFO

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