EX-10.10





 Exhibit 10.10 

EXECUTION VERSION 
 FOURTH
AMENDMENT TO FIRST LIEN CREDIT AGREEMENT 
 This FOURTH AMENDMENT TO FIRST LIEN CREDIT AGREEMENT (this “Fourth Amendment”), dated as of
August 16, 2017, by and among Wilco Intermediate Holdings, Inc. (“Holdings”), ATI Holdings Acquisition, Inc., a Delaware corporation (the “Borrower”), as borrower, Barclays Bank PLC
(“Barclays”), as administrative agent and collateral agent (in such capacities, including any permitted successor thereto, the “Administrative Agent”), and Barclays, as an Additional Term Lender of August 2017
Incremental Term Loans (as defined below) (in such capacity, each a “August 2017 Incremental Term Loan Lender”). 

WITNESSETH: 
 WHEREAS, the
Borrower, Holdings, the Administrative Agent and the Lenders from time to time party thereto are parties to a First Lien Credit Agreement, dated as of May 10, 2016, as amended, restated, amended and restated, modified or supplemented from time
to time through the date hereof (the “Credit Agreement” and the Credit Agreement, as amended by this Fourth Amendment, the “Amended Credit Agreement”) (capitalized terms not otherwise defined in this Fourth
Amendment have the same meanings assigned thereto in the Credit Agreement or, if not defined therein, in the Amended Credit Agreement); 

WHEREAS, pursuant to Section 2.22 of the Credit Agreement, the Borrower has requested that the August 2017 Incremental Term Loan Lender
make commitments (the “August 2017 Incremental Term Loan Commitments”) to provide the August 2017 Incremental Term Loans (as defined below) on the terms and conditions set forth herein and in Section 2.22 of the
Credit Agreement; 
 WHEREAS, Barclays has agreed to serve as the August 2017 Incremental Term Loan Lender; 

WHEREAS, the Borrower is hereby requesting that the August 2017 Incremental Term Loan Lender provide $10,000,000 in aggregate principal amount
of Incremental Term Loans (the “August 2017 Incremental Term Loans”) pursuant to Section 2.22(a) of the Credit Agreement, which shall be added to and constitute a part of the Class of Initial Term Loans and the
Administrative Agent, the Borrower and the August 2017 Incremental Term Loan Lender have agreed, subject to the terms and conditions hereinafter set forth, to amend the Credit Agreement to provide for the August 2017 Incremental Term Loans, as set
forth below; 
 WHEREAS, the proceeds of the August 2017 Incremental Term Loans will be used (i) to pay fees, costs and expenses in
connection with the incurrence of the August 2017 Incremental Term Loans and (ii) for general corporate purposes (the incurrence of the August 2017 Incremental Term Loans and the other transactions contemplated by this Fourth Amendment are
collectively referred to herein as the “Transactions”); 
 WHEREAS, Barclays Bank PLC, HSBC Securities (USA) Inc. and
Jefferies Finance LLC are acting as joint lead arrangers and joint bookrunners in connection with this Fourth Amendment; 
 NOW, THEREFORE,
in consideration of the foregoing and for other good and valuable consideration, the receipt and sufficiency of all of which is hereby acknowledged, the parties hereto hereby agree as follows: 

(a) Subject to the satisfaction (or waiver by the August 2017 Incremental Term Loan Lender) of the conditions set forth in
Section 4 hereof, the August 2017 Incremental Term Loan Lender hereby agrees to make August 2017 Incremental Term Loans (the “August 2017 Incremental Term Loan Commitment”), in the form of additional
Initial Term Loans, in the aggregate principal amount set forth opposite its name on Exhibit A attached hereto, which shall be added to and constitute a part of the Class of Initial Term Loans existing under the Credit Agreement prior to
giving effect to this Fourth Amendment (the “Existing Term Loans”). 












 SECTION 2. Terms of the August 2017 Incremental Term Loans.Pursuant to
Section 2.22(a)(xiv) of the Credit Agreement, the August 2017 Incremental Term Loan Lender, the Borrower and the Administrative Agent acknowledge and agree that, on the Fourth Amendment Effective Date (as defined below), the
August 2017 Incremental Term Loan Commitments provided pursuant to this Fourth Amendment shall constitute Initial Term Loan Commitments of the August 2017 Incremental Term Loan Lender under the Amended Credit Agreement. 

(b) Pursuant to Section 2.22(a)(xiv) of the Credit Agreement and notwithstanding anything in
Section 2.03 of the Credit Agreement to the contrary, the Borrower and the Administrative Agent acknowledge and agree that the Borrowing Request required to be delivered pursuant to Section 4(b)
hereof shall contain appropriate modifications to reflect the August 2017 Incremental Term Loans having a shortened initial Interest Period (i.e. an Interest Period that begins during the Interest Period applicable to the Existing Term Loans and
which will end on the last day of such Interest Period). 
 (c) Each party hereto further agrees that on the Fourth Amendment Effective Date:

 (a) They intend that the August 2017 Incremental Term Loans will be fungible with the Existing Term Loans for U.S. federal
income tax purposes; 
 (b) The August 2017 Incremental Term Loan Lender shall be considered an Initial Term Lender for all
purposes under the Loan Documents; 
 (c) The August 2017 Incremental Term Loans shall have terms identical to the Existing
Term Loans (including, without limitation, as to interest rate margin, interest rate floor and maturity) and will constitute Initial Term Loans for all purposes under the Credit Agreement and the other Loan Documents (other than for purposes of the
Recitals, Section 2.01(a), Section 4.01(f) and the third sentence of Section 5.11 of the Credit Agreement); 

(d) The August 2017 Incremental Term Loan Commitments shall constitute “Term Commitments”; 

(e) The Existing Term Loans and the August 2017 Incremental Term Loans shall collectively comprise a single Class of
Initial Term Loans; and 
 (f) The August 2017 Incremental Term Loans shall (i) constitute Obligations and Secured
Obligations and have the benefits thereof, (ii) have terms, rights, remedies, privileges and protections identical to those applicable to the Existing Term Loans under the Credit Agreement and each of the other Loan Documents and (iii) be
secured by the Liens granted to the Administrative Agent for the benefit of the Secured Parties under the Collateral Documents. 
 SECTION
3. Amendments to Credit Agreement. Subject to the satisfaction (or waiver by the August 2017 Incremental Term Loan Lender) of the conditions set forth in Section 4 hereof, on the Fourth Amendment Effective Date, the
Credit Agreement is hereby amended as follows: 
 (a) Section 1.01 of the Credit Agreement is hereby amended by adding in the appropriate
alphabetical order the following definitions: 
 “August 2017 Incremental Term Loans” shall have the meaning ascribed to
such term in the Fourth Amendment. 

  
 2 













 “August 2017 Incremental Term Loan Lender” shall have the meaning ascribed
to such term in the Fourth Amendment. 
 “Fourth Amendment” means the Fourth Amendment to First Lien Credit Agreement, dated
as of August 16, 2017, by and among the Borrower, Holdings, the Administrative Agent and the August 2017 Incremental Term Loan Lender. The amendments to the First Lien Credit Agreement contemplated by the Fourth Amendment became effective as of
the Fourth Amendment Effective Date. 
 “Fourth Amendment Effective Date” means the date on which the August 2017
Incremental Term Loans were funded pursuant to the Fourth Amendment. 
 (b) Section 1.01 of the Credit Agreement is hereby further
amended by: 
 (a) Amending and restating the definition of “Initial Term Lender” as follows: 

““Initial Term Lender” means any Lender with an Initial Term Loan Commitment or an outstanding Initial Term Loan. For the
avoidance of doubt, the 2016 Incremental Term Loan Lenders, the 2017 Incremental Term Loan Lenders and the August 2017 Incremental Term Loan Lenders shall be Initial Term Lenders.” 

(b) Amending and restating the definition of “Initial Term Loan Commitment” as follows: 

““Initial Term Loan Commitment” means, (i) with respect to each Term Lender on the Closing Date, the commitment of
such Term Lender to make Initial Term Loans hereunder in an aggregate amount not to exceed the amount set forth opposite such Term Lender’s name on the Commitment Schedule, as the same may be (a) reduced from time to time pursuant to
Section 2.09 and (b) reduced or increased from time to time pursuant to (x) assignments by or to such Term Lender pursuant to Section 9.05 or (y) increased from time to time pursuant
to Section 2.22, (ii) with respect to the 2016 Term Loan Lender, the amount set forth opposite such Term Lender’s name in Exhibit A to the First Amendment, as the same may be (a) reduced from time to time pursuant
to Section 2.09 and (b) reduced or increased from time to time pursuant to (x) assignments by or to such Term Lender pursuant to Section 9.05 or (y) increased from time to time
pursuant to Section 2.22, (iii) with respect to the 2017 Term Loan Lender, the amount set forth opposite such Term Lender’s name in Exhibit A to the Second Amendment, as the same may be (a) reduced from time to
time pursuant to Section 2.09 and (b) reduced or increased from time to time pursuant to (x) assignments by or to such Term Lender pursuant to Section 9.05 or (y) increased from time
to time pursuant to Section 2.22, and (iv) with respect to the August 2017 Term Loan Lender, the amount set forth opposite such Term Lender’s name in Exhibit A to the Fourth Amendment, as the same may be
(a) reduced from time to time pursuant to Section 2.09 and (b) reduced or increased from time to time pursuant to (x) assignments by or to such Term Lender pursuant to Section 9.05 or
(y) increased from time to time pursuant to Section 2.22. The initial aggregate amount of the Initial Term Loan Commitments on the Closing Date was $660,000,000.00. The initial aggregate amount of the Initial Term Loan
Commitments on the First Amendment Effective date was $55,000,000. The initial aggregate amount of the Initial Term Loan Commitments on the Second Amendment Effective Date was $50,000,000. The initial aggregate amount of the Initial Term Loan
Commitments on the Fourth Amendment Effective Date was $10,000,000.” 

  
 3 













 (c) Amending and restating the definition of “Initial Term Loans”
as follows: 
 ““Initial Term Loans” means (a) prior to the First Amendment Effective Date, a term loan made by
the Initial Term Lender to the Borrower pursuant to Section 2.01(a), (b) on and after the First Amendment Effective Date to, but excluding, the Second Amendment Effective Date, the Initial Term Loans made on the Closing
Date together with the 2016 Incremental Term Loans made pursuant to the First Amendment, (c) on and after the Second Amendment Effective Date to, but excluding, the Fourth Amendment Effective Date, the Initial Term Loans made on the Closing
Date together with the 2016 Incremental Term Loans made pursuant to the First Amendment and the 2017 Incremental Term Loans made pursuant to the Second Amendment and (d) on and after the Fourth Amendment Effective Date, the Initial Term Loans
made on the Closing Date together with the 2016 Incremental Term Loans made pursuant to the First Amendment, the 2017 Incremental Term Loans made pursuant to the Second Amendment and the August 2017 Incremental Term Loans made pursuant to the Fourth
Amendment.” 
 (c) Section 2.09 of the Credit Agreement is hereby amended by amending and restating clause (a) thereof as follows:

 “(a) Unless previously terminated, (i) the Initial Term Loan Commitments on the Closing Date shall automatically terminate upon
the making of the Initial Term Loans on the Closing Date, (ii) the Initial Revolving Credit Commitments shall automatically terminate on the Initial Revolving Credit Maturity Date, (iii) the Initial Term Loan Commitment as in effect on the
First Amendment Effective Date shall automatically terminate upon the making of the 2016 Incremental Term Loans on the First Amendment Effective Date, (iv) the Initial Term Loan Commitment as in effect on the Second Amendment Effective Date
shall automatically terminate upon the making of the 2017 Incremental Term Loans on the Second Amendment Effective Date, (v) the Initial Term Loan Commitment as in effect on the Fourth Amendment Effective Date shall automatically terminate upon
the making of the August 2017 Incremental Term Loans on the Fourth Amendment Effective Date, (vi) the Additional Term Loan Commitments of any Class shall automatically terminate upon the making of the Additional Term Loans of such
Class and, if any such Additional Term Loan Commitment is not drawn on the date that such Additional Term Loan Commitment is required to be drawn pursuant to the applicable Refinancing Amendment or Incremental Facility Amendment, the undrawn
amount thereof shall automatically terminate and (vii) the Additional Revolving Credit Commitments of any Class shall automatically terminate on the Maturity Date specified therefor in the applicable Refinancing Amendment or Incremental
Facility Amendment.” 
 (d) Section 2.10(a) of the Credit Agreement is hereby amended by amending and restating clause (a) thereof
as follows: 
 “(a) (i) The Borrower hereby unconditionally promises to repay Initial Term Loans to the Administrative Agent for
the account of each Term Lender on the last Business Day of each March, June, September and December prior to the Initial Term Loan Maturity Date (each such date being referred to as a “Loan Installment Date”), in each case in the
amount set forth in the table below (as such payments may be reduced from time to time as a result of the application of prepayments in accordance with Section 2.11 and repurchases in accordance with
Section 9.05(g) or increased as a result of any increase in the amount of such Initial Term Loans pursuant to Section 2.22(a)) and (ii) on the Initial Term Loan Maturity Date, in an amount
equal to the remainder of the principal amount of the Initial Term Loans outstanding on such date, together in each case with accrued and unpaid interest on the principal amount to be paid to but excluding the date of such payment. 

  
 4 














					
	 Date
	 	 	  	Amount
	 September 29, 2017
	 		  	$1,939,359.76
	 December 29, 2017
	 		  	$1,939,359.76
	 March 30, 2018
	 		  	$1,939,359.76
	 June 29, 2018
	 		  	$1,939,359.76
	 September 28, 2018
	 		  	$1,939,359.76
	 December 28, 2018
	 		  	$1,939,359.76
	 March 29, 2019
	 		  	$1,939,359.76
	 June 28, 2019
	 		  	$1,939,359.76
	 September 30, 2019
	 		  	$1,939,359.76
	 December 30, 2019
	 		  	$1,939,359.76
	 March 31, 2020
	 		  	$1,939,359.76
	 June 30, 2020
	 		  	$1,939,359.76
	 September 30, 2020
	 		  	$1,939,359.76
	 December 30, 2020
	 		  	$1,939,359.76
	 March 31, 2021
	 		  	$1,939,359.76
	 June 30, 2021
	 		  	$1,939,359.76
	 September 30, 2021
	 		  	$1,939,359.76
	 December 30, 2021
	 		  	$1,939,359.76
	 March 31, 2022
	 		  	$1,939,359.76
	 June 30, 2022
	 		  	$1,939,359.76
	 September 30, 2022
	 		  	$1,939,359.76
	 December 30, 2022
	 		  	$1,939,359.76
	 March 31, 2023
	 		  	$1,939,359.76

 SECTION 4. Conditions. 

(a) This Fourth Amendment (including the Amendments set forth herein) shall become effective and the August 2017 Incremental Term Loan Lender
shall fund its August 2017 Incremental Term Loan Commitment when the following conditions shall have been satisfied (or waived by the August 2017 Incremental Term Loan Lender) (such date, the “Fourth Amendment Effective Date”): 

(i) The Administrative Agent (or its counsel) shall have received an executed counterpart (or written evidence reasonably
satisfactory to the Administrative Agent (which may include a facsimile or other electronic transmission) that such party has signed a counterpart) of this Fourth Amendment from the Administrative Agent, the August 2017 Incremental Term Loan Lender,
the Borrower and Holdings; 
 (ii) The Administrative Agent shall have received a Borrowing Request (or another written
request, the form of which is reasonably acceptable to the Administrative Agent) in respect of the August 2017 Incremental Term Loans meeting the requirements of Section 2.03 of the Credit Agreement; 

  
 5 













 (iii) All reasonable and documented expenses and other compensation payable
to the Administrative Agent pursuant to Section 9.03(a) of the Credit Agreement to the extent invoiced at least three (3) Business Days prior to the Fourth Amendment Effective Date; 

(iv) Each Guarantor shall have entered into the Guarantor Consent and Reaffirmation attached as Exhibit B hereto (the
“Consent”) on the Fourth Amendment Effective Date; 
 (v) The Administrative Agent shall have received a
certificate, dated the Fourth Amendment Effective Date, executed by a Responsible Officer of the Borrower certifying and attaching copies of (i) the resolutions adopted by (x) the Borrower and Holdings and approving and authorizing the
execution, delivery and performance of this Fourth Amendment and (y) each Guarantor approving and authorizing the execution, delivery and performance of the Consent, and (ii) good standing certificates (or similar certificate) for the Borrower,
Holdings and each other Loan Party from the jurisdiction in which they are organized; 
 (vi) The Administrative Agent shall
have received a certificate dated the Fourth Amendment Effective Date, executed by a Responsible Officer of the Borrower certifying: 

(a) as to the satisfaction of the condition set forth in clause (vii) of this Section; 

(b) that each of the representations and warranties of the Loan Parties contained in Article 3 of the Credit Agreement
and the other Loan Documents are true and correct in all material respects on and as of the Fourth Amendment Effective Date; provided that to the extent that any representation and warranty specifically refers to a given date or period, they
are true and correct in all material respects as of such date or for such period; 
 (c) that the Credit Agreement, as
amended hereby, constitutes the Borrower’s and Holdings’ legal, valid and binding obligation, enforceable against the Borrower and Holdings in accordance with its terms, subject to the Legal Reservations; 

(d) that the aggregate principal amount of the August 2017 Incremental Term Loans incurred on the Fourth Amendment Effective
Date does not exceed the Incremental Cap; 
 (e) that the acknowledgments set forth in Section 8(g)
of the Fourth Amendment remain in full force and effect as of the Fourth Amendment Effective Date. 
 (vii) Prior to and
immediately after giving effect to the Transactions, no Event of Default exists; 
 (viii) The Administrative Agent shall
have received a customary written opinion of (i) Weil, Gotshal & Manges LLP, special counsel for Holdings, the Borrower and each other Loan Party dated the Fourth Amendment Effective Date and addressed to the Administrative Agent and
the August 2017 Incremental Term Loan Lender and (ii) local counsel to the Subsidiary Guarantors organized under the laws of Illinois, Indiana and Michigan dated the Fourth Amendment Effective Date and addressed to the Administrative Agent, the
August 2017 Incremental Term Loan Lender and the Lenders; 
 (ix) The Administrative Agent shall have received a solvency
certificate from the chief financial officer (or other officer with reasonably equivalent duties) of the Borrower (after giving pro forma effect to the incurrence of the August 2017 Incremental Term Loans) dated the Fourth Amendment Effective
Date substantially in the form of Exhibit P to the Credit Agreement (with appropriate modifications to reflect the incurrence of the August 2017 Incremental Term Loans on the Fourth Amendment Effective Date); and 

  
 6 













 (x) The Third Amendment shall be effective. 

SECTION 5. Loan Document. This Fourth Amendment shall constitute a Loan Document for all purposes of the Credit Agreement and the other
Loan Documents. 
 SECTION 6. Use of Proceeds. The Borrower hereby covenants and agrees that all proceeds of the August 2017
Incremental Term Loans under this Fourth Amendment will be used by the Borrower on the Fourth Amendment Effective Date (i) to pay fees, expenses and other costs associated with the Transactions and (ii) for general corporate purposes. 

SECTION 7. Representations and Warranties. To induce the other parties hereto to enter into this Fourth Amendment, the Borrower and
Holdings represent and warrant to each other party hereto that, as of the Fourth Amendment Effective Date, this Fourth Amendment has been duly authorized, executed and delivered by it, and this Fourth Amendment constitutes its legal, valid and
binding obligation, enforceable against it in accordance with its terms, subject to the Legal Reservations. 
 SECTION 8. Reference to
and Effect on the Credit Agreement and the other Loan Documents. 
 (a) On and after the Fourth Amendment Effective Date, (i) each
reference in the Credit Agreement to “this Agreement,” “hereunder,” “hereof” or words of like import referring to the Credit Agreement shall mean and be a reference to the Credit Agreement, as amended by this Fourth
Amendment; (ii) the August 2017 Incremental Term Loans shall constitute “Incremental Term Loans,” “Additional Term Loans”, “Initial Term Loans” (other than for purposes of the Recitals, Section 2.01(a),
Section 4.01(f) and the third sentence of Section 5.11 of the Credit Agreement) and “Term Loans”; (iii) each August 2017 Incremental Term Loan Commitment shall constitute an “Additional Term Loan
Commitment”, an “Initial Term Loan Commitment” (other than for purposes of Section 2.01(a) of the Credit Agreement) and a “Commitment”; (iv) the August 2017 Incremental Term Loan Lender shall constitute a
“Lender”, an “Initial Term Lender”, a “Secured Party” and an “Additional Term Lender”, in each case as defined in the Credit Agreement and (v) each reference to the Credit Agreement in any Loan Document
shall be deemed to be a reference to the Credit Agreement, as amended by this Fourth Amendment. 
 (b) The Credit Agreement and each of the
other Loan Documents, as specifically amended by this Fourth Amendment, are and shall continue to be in full force and effect and are hereby in all respects ratified and confirmed. Without limiting the generality of the foregoing, (i) the
Collateral Documents and all of the Collateral described therein shall continue to secure the payment of all Secured Obligations of the Loan Parties, as amended by this Fourth Amendment and (ii) neither the modification of the Credit Agreement
effected pursuant to this Fourth Amendment nor the execution, delivery, performance or effectiveness of this Fourth Amendment will impair the validity, effectiveness or priority of the Liens granted pursuant to any Loan Document and such Liens shall
continue unimpaired with the same priority to secure repayment of all Secured Obligations (including, without limitation, the August 2017 Incremental Term Loans), whether heretofore or hereafter incurred. 

(c) The execution, delivery and effectiveness of this Fourth Amendment shall not, except as expressly provided herein, operate as a waiver of
any right, power or remedy of any Lender or the Administrative Agent under any of the Loan Documents, nor constitute a waiver of any provision of any of the Loan Documents. This Fourth Amendment shall for all purposes constitute a Loan Document.

 (d) This Fourth Amendment shall not constitute a novation of the Credit Agreement or any other Loan Document. 

  
 7 













 (e) This Fourth Amendment and the other Loan Documents constitute the entire agreement among
the parties hereto with respect to the subject matter hereof and thereof and supersede all other prior agreements and understandings, both written and verbal, among the parties hereto with respect to the subject matter hereof. 

(f) This Fourth Amendment may not be amended, modified or waived except pursuant to a writing signed by each of the parties hereto. 

(g) The Borrower hereby expressly acknowledges the terms of this Fourth Amendment and reaffirms, as of the date hereof and as of the Fourth
Amendment Effective Date, (i) the covenants, pledges, grants of Liens and agreements or other commitments contained in each Loan Document to which it is a party, including, in each case, such covenants, pledges, grants of Liens and agreements
or other commitments as in effect immediately after giving effect to this Fourth Amendment and the transactions contemplated hereby, (ii) its grant of Liens on the Collateral to secure the Secured Obligations (including, without limitation, the
Secured Obligations with respect to the August 2017 Incremental Term Loans) pursuant to the Collateral Documents, and (iii) that (A) each Loan Document to which it is a party shall continue to be in full force and effect and (B) all
guarantees, pledges, grants of Liens, covenants, agreements and other commitments by such Loan Party under the Loan Documents shall continue to be in full force and effect and shall accrue to the benefit of the Secured Parties and shall not be
affected, impaired or discharged hereby or by the transactions contemplated in this Fourth Amendment. 
 SECTION 9. Execution in
Counterparts. This Fourth Amendment may be executed in one or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Delivery by facsimile or electronic transmission
of an executed counterpart of a signature page to this Fourth Amendment shall be effective as delivery of an original executed counterpart of this Fourth Amendment. 

SECTION 10. Governing Law; Jurisdiction; Waiver of Jury Trial; etc.. Sections 9.10 (Governing Law; Jurisdiction; Consent to Service
of Process) and 9.11 (Waiver of Jury Trial) of the Credit Agreement are hereby incorporated by reference into this Fourth Amendment and shall apply to this Fourth Amendment, mutatis mutandis. 

SECTION 11. Headings. Section headings herein are included for convenience of reference only and shall not affect the interpretation of
this Fourth Amendment. 
 [The remainder of this page is intentionally left blank.] 

  
 8 













 IN WITNESS WHEREOF, the parties hereto have caused this Fourth Amendment to be duly executed
by their respective officers thereunto duly authorized, as of the date first above written. 
  

			
	ATI HOLDINGS ACQUISITION, INC.
		
	By:	 	 /s/ Robert Mckenzie

	Name:	 	Robert Mckenzie
	Title:	 	General Counsel
	
	WILCO INTERMEDIATE HOLDINGS, INC.
		
	By:	 	 /s/ Robert Mckenzie

	Name:	 	Robert Mckenzie
	Title:	 	General Counsel



  

[ATI – Fourth Amendment] 













 
			
	BARCLAYS BANK PLC, as Administrative Agent and August 2017 Incremental Term Loan Lender
		
	By:	 	 /s/ Vanessa A. kurbatskiy

	Name:	 	Vanessa A. kurbatskiy
	Title:	 	Vice President



  

[ATI – Fourth Amendment] 













 EXHIBIT A 

ADDITIONAL TERM COMMITMENTS 
  

					
	August 2017 Incremental Term Loan	  	Additional Term	 
	
Lender               
                                     
	  	Commitments	 
	 Barclays Bank PLC
	  	$	10,000,000	 













 EXHIBIT B 

GUARANTOR CONSENT AND REAFFIRMATION 

August 16, 2017 
 Reference
is made to (a) the First Lien Credit Agreement dated as of May 10, 2016 (as amended, restated, amended and restated, modified or supplemented from time to time through the date hereof, the “Credit Agreement”), by and among
ATI Holdings Acquisition, Inc., a Delaware corporation (the “Borrower”), Wilco Intermediate Holdings, Inc., a Delaware corporation (“Holdings”), Barclays Bank PLC (“Barclays”) as administrative
agent (in such capacity, including any permitted successor thereto, the “Administrative Agent”) and as collateral agent (in such capacity, including any permitted successor thereto, the “Collateral Agent”) under the
Loan Documents (as defined therein), and each of the other banks and financial institutions party thereto from time to time (collectively, the “Lenders” and individually, a “Lender”) and (b) the Fourth
Amendment to First Lien Credit Agreement, dated as of the date hereof, among Holdings, the Borrower, the Administrative Agent and the August 2017 Incremental Term Loan Lender (as defined therein) party thereto (the “Fourth
Amendment”). Capitalized terms used but not otherwise defined in this Guarantor Consent and Reaffirmation (this “Consent”) are used with the meanings attributed thereto in the Credit Agreement or the Fourth Amendment, as
applicable. 
 Each Guarantor party hereto hereby consents to the terms and conditions of the Fourth Amendment, including the incurrence by
the Borrower of the August 2017 Incremental Term Loans contemplated thereby, and agrees that each reference to the Credit Agreement in the Loan Documents shall, on and after the Fourth Amendment Effective Date, be deemed to be a reference to the
Credit Agreement as amended by the Fourth Amendment. 
 Each Guarantor hereby acknowledges and agrees that, after giving effect to the
Fourth Amendment, all of its respective obligations, guarantees, pledges, grants of Liens, liabilities and other agreements or commitments under the Loan Documents to which it is a party, as such obligations, guarantees, pledges, grants of Liens,
liabilities and other agreements or commitments have been amended by the Fourth Amendment, are reaffirmed, and remain in full force and effect. 

After giving effect to the Fourth Amendment, each Guarantor reaffirms (i) its guarantee of the Secured Obligations (including, without
limitation, the August 2017 Incremental Term Loans) and (ii) each Lien granted by it to the Collateral Agent for the benefit of the Secured Parties under each of the Loan Documents to which it is a party, which Liens shall continue in full
force and effect during the term of the Credit Agreement as amended by the Fourth Amendment, and shall continue to secure the Secured Obligations (including, without limitation, the August 2017 Incremental Term Loans), in each case, on and subject
to the terms and conditions set forth in the Credit Agreement, as amended by the Fourth Amendment, and the other Loan Documents. 
 Each
Guarantor hereby acknowledges and agrees that neither the modification of the Credit Agreement effected pursuant to this Fourth Amendment nor the execution, delivery, performance or effectiveness of this Fourth Amendment or the execution and
delivery of this Guarantor Consent and Reaffirmation impairs the validity, effectiveness or priority of the Liens granted pursuant to any Loan Document and such Liens continue unimpaired with the same priority to secure repayment of all Secured
Obligations, whether heretofore or hereafter incurred. 
 Each Guarantor hereby acknowledges and agrees that (A) each Loan Document to
which it is a party shall continue to be in full force and effect and (B) all guarantees, pledges, grants of Liens, covenants, agreements and other commitments by such Loan Party under the Loan Documents shall continue to be in full force and
effect and shall accrue to the benefit of the Secured Parties and shall not be affected, impaired or discharged hereby or by the transactions contemplated in the Fourth Amendment. 












 Nothing in this Consent shall create or otherwise give rise to any right to consent on the
part of the Guarantors to the extent not required by the express terms of the Loan Documents. 
 This Consent is a Loan Document and shall
be governed by, and construed and interpreted in accordance with, the law of the State of New York. 
 This Consent may be executed in
counterparts, and all such counterparts taken together shall be deemed to constitute one and the same instrument. Delivery by facsimile or electronic transmission of an executed counterpart of a signature page to this Consent shall be effective as
delivery of an original executed counterpart of this Consent. 












 IN WITNESS WHEREOF, the parties hereto have duly executed this Consent as of the date first
set forth above. 
  

			
	[GUARANTORS]
		
	By:	 	              

	Name:	 	
	Title:	 	


 [Signature Page to Fourth Amendment Guarantor Consent and Reaffirmation] 













			
	Acknowledged and agreed to as of the date set forth above:
	
	BARCLAYS BANK PLC, as the Administrative
	Agent
		
	By:	 	          

	Name:	 	
	Title:	 	

 [Signature Page to Fourth Amendment Guarantor Consent and Reaffirmation]