Document:

Change in Control Agreement

 Exhibit (10bbbb) 
 CHANGE IN CONTROL AGREEMENT 
 THIS AGREEMENT, dated April 10, 2007, between QUAKER CHEMICAL
LIMITED, whose registered office is 100 New Bridge Street, London, EC4V 6JA (the “Company”), and MARK A. HARRIS (the “Manager”), 
 WITNESSETH THAT 
 WHEREAS, the Board of Directors of the Company’s parent company, Quaker Chemical Corporation
(“Quaker Chemical”), has determined that it is in the best interests of Quaker Chemical and its shareholders that Quaker Chemical and its subsidiaries be able to attract, retain, and motivate highly qualified management personnel and, in
particular, that they be assured of continuity of management in the event of any actual or threatened change in control of Quaker Chemical; 
 WHEREAS, the Board of Directors of Quaker Chemical believes that the execution by Quaker Chemical and its subsidiaries of change in control agreements with certain management personnel, including the Manager, is an important factor in
achieving this desired end; 
 WHEREAS, the Board of Directors of the Company also believes that the execution of a change in control
agreement with the Manager is an important factor in achieving this desired end; 
 WHEREAS, the Manager is employed by the Company pursuant
to an employment agreement dated August 8, 2006 to be effective June 12, 2006 (the “Employment Agreement”); and 
 WHEREAS, the Company considers that certain restrictions on the activities of the Manager are required to protect its business interests in the event his employment terminates; 
 NOW, THEREFORE, IN CONSIDERATION of the mutual obligations and agreements contained herein and intending to be legally bound hereby, the Manager and the
Company agree as follows: 
  

	1.	Term of Agreement. 

 This Agreement shall
become effective on January 1, 2007 (the “Effective Date”), and shall continue in effect through December 31, 2007, provided, however, that the term of this Agreement shall automatically be extended for one additional year beyond
December 31, 2007 and successive one year periods thereafter, unless, not later than eighteen (18) months preceding the calendar year in which the term would otherwise automatically extend, the Company shall have given written notice to
the Manager of intention not to extend this Agreement for an additional year, in which event this Agreement shall continue in effect until December 31 of the calendar year immediately preceding the calendar year in which the term would have
otherwise automatically extended. Notwithstanding any such notice not to extend, if a Change in Control (as defined in Section 2) occurs during the original or extended term of this Agreement, this Agreement shall remain in effect after a
Change in Control until all obligations of the parties hereto under this Agreement shall have been satisfied. 

	2.	Change in Control. 

 As used in this
Agreement, a “Change in Control” of Quaker Chemical shall be deemed to have occurred if: 
 (a) Any person (a “Person”),
as such term is used in Sections 13(d) and 14(d) of the US Securities Exchange Act of 1934, as amended (the “Exchange Act”) (other than (i) Quaker Chemical and/or its wholly owned subsidiaries; (ii) any ESOP or other employee
benefit plan of Quaker Chemical and any trustee or other fiduciary in such capacity holding securities under such plan; (iii) any corporation owned, directly or indirectly, by the shareholders of Quaker Chemical in substantially the same
proportions as their ownership of stock of Quaker Chemical; or (iv) any other Person who, within the one year prior to the event which would otherwise be a Change in Control, is an executive officer of Quaker Chemical or any group of Persons of
which he voluntarily is a part), is or becomes the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of Quaker Chemical representing 30% or more of the combined voting power of
Quaker Chemical’s then outstanding securities or such lesser percentage of voting power, but not less than 15%, as determined by the members of the Board of Directors of Quaker Chemical who are independent directors (as defined in the New York
Stock Exchange, Inc. Listed Company Manual); provided, however, that a Change in Control shall not be deemed to have occurred under the provisions of this subsection (a) by reason of the beneficial ownership of voting securities by members of
the Benoliel family (as defined below) unless and until the beneficial ownership of all members of the Benoliel family (including any other individuals or entities who or which, together with any member or members of the Benoliel family, are deemed
under Sections 13(d) or 14(d) of the Exchange Act to constitute a single Person) exceeds 50% of the combined voting power of Quaker Chemical’s then outstanding securities; 
 (b) During any two-year period after the Effective Date, Directors of Quaker Chemical in office at the beginning of such period plus any new Director
(other than a Director designated by a Person who has entered into an agreement with Quaker Chemical to effect a transaction within the purview of subsections (a) or (c)) whose election by the Board of Directors of Quaker Chemical or whose
nomination for election by Quaker Chemical’s shareholders was approved by a vote of at least two-thirds of the Directors then still in office who either were Directors at the beginning of the period or whose election or nomination for election
was previously so approved shall cease for any reason to constitute at least a majority of the Board; 
 (c) The consummation of (i) any
consolidation or merger of Quaker Chemical in which Quaker Chemical is not the continuing or surviving corporation or pursuant to which Quaker Chemical’s voting common shares (the “Common Shares”) would be converted into cash,
securities, and/or other property, other than a merger of Quaker Chemical in which holders of Common Shares immediately prior to the merger have the same proportionate ownership of voting shares of the surviving corporation immediately after the
merger as they had in the Common Shares immediately before; or (ii) any sale, lease, exchange, or other transfer (in one transaction or a series of related transactions) of all or substantially all the assets or earning power of Quaker
Chemical; or 
  

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 (d) Quaker Chemical’s shareholders or Quaker Chemical’s Board of Directors shall approve the
liquidation or dissolution of Quaker Chemical. 
 As used in this Agreement, “members of the Benoliel family” shall mean Peter A.
Benoliel, his wife and children and their respective spouses and children, and all trusts created by or for the benefit of any of them. 
  

	3.	Entitlement to Change in Control Benefits; Certain Definitions. 

 The Manager shall be entitled to the benefits provided in this Agreement in the event the Manager’s employment with the Company or its affiliates is terminated under the circumstances described in (a) or
(b) below (a “Covered Termination”), provided the Manager executes and does not revoke a Release (as defined below), if any, provided by the Company. 
 (a) A Covered Termination shall have occurred within the meaning of this subsection (a) in the event the Manager’s employment with the Company or its affiliates is terminated within two (2) years
following a Change in Control by: 
 (i) The Company or its affiliates without Cause (as defined below); or 
 (ii) Resignation of the Manager for Good Reason (as defined below). 
 (b) A Covered Termination shall have occurred within the meaning of this subsection (b) in the event the Manager’s employment with the Company
or its affiliates is terminated by the Company or its affiliates without Cause within six months prior to a Change in Control and the Manager reasonably demonstrates after such Change in Control that such termination was at the request or suggestion
of any individual or entity who or which has taken steps reasonably calculated to effect such Change in Control. 
 The Manager shall have no
rights to any payments or benefits under this Agreement in the event the Manager’s employment with the Company and its affiliates is terminated (i) as a result of death or Disability (as defined below), or (ii) by the Company or its
affiliates for Cause. Except as provided in subsection (b), in the event the Manager’s employment is terminated for any reason prior to a Change in Control, the Manager shall have no rights to any payments or benefits under this Agreement and,
after any such termination, this Agreement shall be of no further force or effect. 
 “Cause” shall mean (i) the
Manager’s willful and material breach of the employment agreement, if any, between the Manager and the Company (after having received notice thereof and a reasonable opportunity to cure or correct), (ii) dishonesty, fraud, willful
malfeasance, gross negligence, or other gross misconduct, in each case relating to the performance of the Manager’s employment with the Company or its affiliates which is materially injurious to the Company, or (iii) conviction of or plea
of guilty to an indictable criminal offence, such Cause to be determined, in each case, by a resolution approved by at least two-thirds of the Directors of the Company after having afforded the Manager a reasonable opportunity to appear before the
Board of Directors of the Company and present his position. 
  

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 “Code” shall mean the US Internal Revenue Code of 1986, as amended, together with any
applicable regulations thereunder. 
 “Disability” shall mean: (i) a physical or mental disability which, at least
twenty-six (26) weeks after its commencement, is determined to be total and permanent by a physician selected by the Company or its insurers and reasonably acceptable to the Manager or the Manager’s legal representative, or (ii) if
the Company then has in effect a long-term disability plan covering employees generally, including the Manager, the definition of covered total and permanent “disability” set forth in such plan. 
 “Good Reason” shall mean any of the following actions without the Manager’s consent, other than due to the Manager’s death or
Disability: (i) any reduction in the Manager’s base salary from that provided immediately before the Covered Termination or, if higher, immediately before the Change in Control; (ii) any reduction in the Manager’s bonus
opportunity (including cash and noncash incentives) or increase in the goals or standards required to accrue that opportunity, as compared to the opportunity and goals or standards in effect immediately before the Change in Control; (iii) a
material adverse change in the nature or scope of the Manager’s authorities, powers, functions, or duties from those in effect immediately before the Change in Control; (iv) a reduction in the Manager’s benefits from those provided
immediately before the Change in Control, disregarding any reduction under a plan or program covering employees generally that applies to all employees covered by the plan or program; or (v) the Manager being required to accept a primary
employment location which is more than twenty-five (25) miles from the location at which he primarily was employed during the ninety (90) day period prior to a Change in Control. 
 “Payment Date” shall mean (i) in the case of a Covered Termination described in Section 3(a), the last business day of the
second month following the month in which the Manager’s Separation from Service occurs, subject to Section 9, or (ii) in the case of a Covered Termination described in Section 3(b), (A) the last business day of the second
month following the month in which the Change in Control giving rise to such Covered Termination occurs, if the Change in Control is also a “change in control event” under Section 409A of the Code, or (B) the last business day of
the eighth month following the month in which the Manager’s Separation from Service occurs, if such Change in Control is not a “change in control event” under Section 409A of the Code. 
 “Release” shall mean a release in the form of a Compromise Agreement meeting the requirements of the UK Employment Rights Act 1996 and
any other relevant statutory provisions and otherwise in a form satisfactory to the Company which validly waives all contractual, statutory and other claims against the Company, Quaker Chemical, Quaker Chemical B.V. and all their affiliates with
respect to all matters arising out of the Manager’s employment by the Company and its affiliates, or the termination thereof, including but not limited to claims for unfair dismissal and unlawful discrimination, that the Company provides to the
Manager no later than (i) in the case of a Covered Termination described in Section 3(a), fourteen days after the date of the Manager’s 

  

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Covered Termination, or (ii) in the case of a Covered Termination described in Section 3(b), fourteen days after the date of the Change in Control
giving rise to such Covered Termination. Notwithstanding any provision of this Agreement to the contrary, if the Company provides a Release to the Manager, the Manager shall not be entitled to any payments or benefits under this Agreement unless the
Manager executes and does not revoke the Release, and an independent legal adviser instructed by the Manager certifies that they have advised the Manager on the terms and effect of the Release. 
 “Separation from Service” shall mean the Manager’s separation from service with the Company and its affiliates within the meaning
of US Prop. Treas. Reg. §1.409A-1(h) or any successor thereto. 
 “Specified Employee” shall mean the Manager if he is
a specified employee as defined in Section 409A of the Code as of the date of his Separation from Service. 
  

	4.	Severance Allowance. 

 (a) Amount of
Severance Allowance. In the event of a Covered Termination, the Company shall pay or cause to be paid to the Manager in cash a severance allowance (the “Severance Allowance”) equal to 1.5 times the sum of the amounts determined in
accordance with the following paragraphs (i) and (ii): 
  

	 	(i)	An amount equivalent to the highest annualized base salary which the Manager was entitled to receive from the Company and its affiliates at any time during his employment prior to
the Covered Termination; and 

  

	 	(ii)	An amount equal to the average of the aggregate annual amounts paid to the Manager under all applicable annual incentive compensation plans maintained by the Company and its
affiliates (other than compensation relating to relocation expense; the grant, exercise, or settlement of stock options or performance incentive units or the sale or other disposition of shares received upon exercise or settlement of such options)
during the three (3) calendar years prior to the year such Covered Termination occurs or, if higher, prior to the year such Change in Control occurs (provided, however, that (x) in determining the average amount paid under the annual
incentive plan during such period there shall be excluded any year in which no amounts were paid to the Manager under that plan; and (y) there shall be excluded from such calculation any amounts paid to the Manager under any such incentive
compensation plan as a result of the acceleration of such payments under such plan due to termination of the plan, a Change in Control, or a similar occurrence). 

 In no event shall any retention bonus or change in control or success fee be taken into account when determining the amount of the Severance Allowance hereunder. 
 (b) Payment of Severance Allowance. The Severance Allowance shall be paid to the Manager in a lump sum on the Payment Date. 
  

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	5.	Outplacement and Welfare Benefits. 

 (a)
Outplacement. Subject to Section 6, for a period of one year following a Covered Termination of the Manager (or the Change in Control resulting in a Covered Termination, if later), the Company shall make or cause to be made available to
the Manager, at its expense, outplacement counseling and other outplacement services comparable to those available for the Company’s senior managers prior to the Change in Control. 
 (b) Welfare Benefits. Subject to Section 6, for a period of 18 months following a Covered Termination of the Manager (or the Change in
Control resulting in a Covered Termination, if later), the Manager and the Manager’s dependents shall be entitled to participate in the Company’s death-in-service and medical insurance plans at the Company’s expense, in accordance
with and subject always to the terms of such plans at the time of such Covered Termination as if the Manager were still employed by the Company or its affiliates under this Agreement. If, however, death-in-service and medical insurance benefits are
not paid or provided under any such plan to the Manager or his dependents because the Manager is no longer an employee of the Company or its subsidiaries, the Company itself shall, to the extent necessary, pay or otherwise provide for such benefits
to the Manager and his dependents. 
  

	6.	Effect of Other Employment. 

 In the event
the Manager becomes employed (as defined below) during the period with respect to which benefits are continuing pursuant to Section 5: (a) the Manager shall notify the Company not later than the day such employment commences; and
(b) the benefits provided for in Section 5 shall terminate as of the date such employment commences. For the purposes of this Section 6, the Manager shall be deemed to have become “employed” by another entity or person only
if the Manager becomes essentially a full-time employee of a person or an entity (not more than 30% of which is owned by the Manager and/or members of his family); and the Manager’s “family” shall mean his parents, his siblings and
their spouses, his children and their spouses, and the Manager’s spouse and her parents and siblings. Nothing herein shall relieve the Company of its obligations for compensation or benefits accrued up to the time of termination provided for
herein. 
  

	7.	Other Payments and Benefits. 

 On the Payment
Date, the Company shall pay or cause to be paid to the Manager the aggregate of: 
 (a) the Manager’s earned but unpaid base salary
through the Covered Termination at the rate in effect on the date of the Covered Termination, or if higher, at the rate in effect at any time during the 90-day period preceding the Change in Control; 
 (b) any unpaid bonus or annual incentive payable to the Manager in respect of the calendar year ending prior to the Covered Termination; 
 (c) any and all unpaid bonuses and annual incentive awards for the calendar year in which the Covered Termination occurs which would have been payable
had (i) the Covered Termination not occurred in such calendar year, and (ii) the target level of performance been achieved for the calendar year; and 
  

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 (d) the pro rata portion of any and all awards under the Company’s long term incentive plan for the
performance period(s) in which the Covered Termination occurs, said pro rata portion to be calculated on the fractional portion (the numerator of said fraction being the number of days between the first day of the applicable performance period and
the date of the Covered Termination, and the denominator of which is the total number of days in the applicable performance period) of the amount of the award which would have been payable had (i) the Covered Termination not occurred, and
(ii) the target level of performance been achieved for the applicable performance period. 
 It shall be a condition of receipt of the Severance
Allowance that the Manager waives in a Release all rights to payment for or in lieu of notice, damages for loss of notice and to any redundancy payment, whether such rights arise under contract, statute or otherwise, and to the severance payment
described in clause 6.1 of his Employment Agreement. The Manager shall be entitled to receive any other payments or benefits that the Manager is entitled to pursuant to the express terms of any compensation or benefit plan or arrangement of the
Company or any of its affiliates; provided that: (x) the Severance Allowance (i) shall be in lieu of notice and any severance payments to which the Manager might otherwise be entitled under the terms of any severance pay plan, policy, or
arrangement maintained by the Company or any of its affiliates or the employment agreement, if any, between the Manager and the Company or any of its affiliates, and (ii) shall be credited against any severance payments to which the Manager may
be entitled by statute, including but not limited to payments for minimum notice, and statutory redundancy payments and any other payments or compensation arising in connection with the termination of his employment; (y) any annual incentive
described in subsection (b) or (c) shall decrease (but not below zero) the amount of the annual incentive payable under Quaker Chemical’s annual incentive plan (currently the 2001 Global Annual Incentive Plan) with respect to the same
calendar year; and (z) any amount described in subsection (d) shall decrease (but not below zero) the amount of the analogous performance award payable under Quaker Chemical’s long term incentive plan(s) (currently the 2001 and 2006
Long-Term Performance Incentive Plans) with respect to the same performance period(s). 
  

	8.	Death After Covered Termination. 

 In the
event the Manager dies after a Covered Termination occurs, (a) any payments due to the Manager under Section 4 and the first sentence of Section 7 and not paid prior to the Manager’s death shall be made to the person or persons
who may be designated by the Manager in writing or, in the event he fails to so designate, to the Manager’s personal representatives, and (b) the Manager’s dependents shall be eligible for the welfare benefits described in
Section 5(b). Payments pursuant to subsection (a) shall be made on the later of (i) the date payment would have been made to the Manager without regard to Section 9, or (ii) the date of the Manager’s death. 

 

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	9.	Specified Employee. 

 Notwithstanding any
provision of this Agreement to the contrary, if the Manager is a Specified Employee, any payment or benefit under this Agreement that constitutes deferred compensation subject to Section 409A of the Code and for which the payment event is
Separation from Service shall be not be made or provided before the date that is six months after the date of Manager’s Separation from Service. Any payment or benefit that is delayed pursuant to this Section 9 shall be made or provided on
the first business day of the seventh month following the month in which Manager’s Separation from Service occurs. The provisions of this Section 9 shall apply only to the extent required to avoid Manager’s incurrence of any
additional tax or interest under Section 409A of the Code. 
  

	10.	Confidentiality and Noncompetition. 

 In
consideration of this Change in Control Agreement, the Manager agrees to be bound by the Confidentiality and Noncompetition provisions contained in Addendum 1 to this Agreement. The Manager further agrees that Addendum 1 to this Agreement supersedes
and replaces Addendum 1 to the Manager’s Employment Agreement dated 12 June 2006. 
  

	11.	Set-Off Mitigation. 

 The Manager agrees that
it shall be a term of the Release that he shall repay to the Company on demand and in full the Severance Allowance in the event that the Manager brings any claims or proceedings, whether statutory, contractual or otherwise, relating to his
employment with the Company or its affiliates, or its termination, against the Company, any affiliate, its or their employees, officers or shareholders, whether in an Employment Tribunal, a County Court, a High Court or otherwise. The Manager agrees
that this sum shall be recoverable as a debt, together with all costs, including legal costs, reasonably incurred by the Company or its affiliates in recovering the sum and/or in relation to any claims or proceedings so brought by the Manager.
Notwithstanding this, in no event shall the Manager be obligated to seek other employment or take any other action by way of mitigation of the amounts payable to the Manager under any of the provisions of this Agreement. 
  

	12.	Limitation on Payment Obligation. 

 (a) For
purposes of this Section 12, all terms capitalized but not otherwise defined herein shall have the meanings as set forth in Section 280G of the Code. In addition: 
  

	 	(i)	the term “Parachute Payment” shall mean a payment described in Section 280G(b)(2)(A) or Section 280G(b)(2)(B) of the Code (including, but not limited to, any
stock option rights, stock grants, and other cash and noncash compensation amounts that are treated as payments under either such section) and not excluded under Section 280G(b)(4)(A) or Section 280G(b)(6) of the Code;

  

	 	(ii)	the term “Reasonable Compensation” shall mean reasonable compensation for prior personal services as defined in Section 280G(b)(4)(B) of the Code and subject to the
requirement that any such reasonable compensation must be established by clear and convincing evidence; and 

  

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	 	(iii)	the portion of the “Base Amount” and the amount of “Reasonable Compensation” allocable to any “Parachute Payment” shall be determined in accordance
with Section 280G(b)(3) and (4) of the Code. 

 (b) Notwithstanding any other provision of this Agreement, each
Parachute Payment to be made to or for the benefit of the Manager, whether pursuant to this Agreement or otherwise, with respect to a Change in Control shall be reduced if and to the extent necessary so that the aggregate Present Value of all such
Parachute Payments shall be at least one dollar ($1.00) less than the greater of (i) three times the Manager’s Base Amount and (ii) the aggregate Reasonable Compensation allocable to such Parachute Payments. Unless otherwise agreed by
the Manager and the Company, any reduction in Parachute Payments caused by reason of this subsection (b) shall be made proportionately with respect to each such Parachute Payment. 
 This subsection (b) shall be interpreted and applied to limit the amounts otherwise payable to the Manager under this Agreement or otherwise only to
the extent required to avoid any material risk of the imposition of excise taxes on the Manager under Section 4999 of the Code or the disallowance of a deduction to the Company under Section 280G(a) of the Code. In the making of any such
interpretation and application, the Manager shall be presumed to be a disqualified individual for purposes of applying the limitations set forth in this subsection (b) without regard to whether or not the Manager meets the definition of
disqualified individual set forth in Section 280G(c) of the Code. In the event that the Manager and the Company are unable to agree as to the application of this subsection (b), the Company’s independent auditors shall select independent
tax counsel to determine the amount of such limits. Such selection of tax counsel shall be subject to the Manager’s consent, provided that the Manager shall not unreasonably withhold his consent. The determination of such tax counsel under this
Section 12 shall be final and binding upon the Manager and the Company. 
 (c) Notwithstanding any other provision of this Agreement, no
payment shall be made hereunder to or for the benefit of the Manager if and to the extent that such payments are determined to be illegal. 
  

	13.	Notices. 

 Any notices, requests, demands,
and other communications provided for by this Agreement shall be sufficient if in writing, and if hand delivered or if sent by registered or certified mail, if to the Manager, at the last address he had filed in writing with the Company or if to the
Company, at its principal executive offices. Notices, requests, etc. shall be effective when actually received by the addressee or at such address. 
  

	14.	Withholding. 

 Notwithstanding any provision
of this Agreement to the contrary, the Company may, to the extent required by law, withhold applicable income tax and National Insurance contributions from any payments due to the Manager hereunder or under the Release. 
  

	15.	Assignment and Benefit. 

 (a) This Agreement
is personal to the Manager and shall not be assignable by the Manager, by operation of law, or otherwise without the prior written consent of the Company otherwise than by will or the laws of descent and distribution. This Agreement shall inure to
the benefit of and be enforceable by the Manager’s heirs and legal representatives. 
  

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 (b) This Agreement shall inure to the benefit of and be binding upon the Company and its successors and
assigns, including, without limitation, any affiliate of the Company to which the Company may assign any of its rights hereunder; provided, however, that no assignment of this Agreement by the Company, by operation of law, or otherwise shall relieve
it of its obligations hereunder except an assignment of this Agreement to, and its assumption by, a successor pursuant to subsection (c). 
 (c) The Company shall require any successor (whether direct or indirect, by purchase, merger, consolidation, operation of law, or otherwise) to all or substantially all of the business and/or assets of the Company to assume expressly and
agree to perform this Agreement in the same manner and to the same extent that the Company would be required to perform it if no such succession had taken place, but, irrespective of any such assignment or assumption, this Agreement shall inure to
the benefit of and be binding upon such a successor. As used in this Agreement, “Company” shall mean the Company as hereinbefore defined and any successor to its business and/or assets as aforesaid. 
  

	16.	Governing Law. 

 This Agreement is governed
by English Law and the parties hereby submit to the exclusive jurisdiction of the English Courts. 
  

	17.	Entire Agreement; Amendment. 

 (a) This
Agreement supersedes the Change in Control Agreement entered into between the Manager and Quaker Chemical on January 1, 2001, which agreement shall be null and void as of the earliest of the Effective Date, the day and year first above written,
or the date set forth in such agreement. 
 (b) Except for the Employment Agreement and the change in control provisions set forth in Quaker
Chemical’s annual incentive plan and long term incentive plans, this Agreement represents the entire agreement and understanding of the parties with respect to the subject matter hereof. The Manager understands and acknowledges that Quaker
Chemical’s severance plan, annual incentive plan and long term incentive plans are hereby amended with respect to the Manager to avoid duplication of benefits, as provided in Section 7. The Manager further acknowledges that the Employment
Agreement has been amended by this Change in Control Agreement to the extent set out herein, and that in the event of any inconsistency between the Employment Agreement and this Change in Control Agreement, the terms of the Change in Control
Agreement shall prevail. 
 (c) The Company reserves the right to unilaterally amend this Agreement without the consent of the Manager to the
extent the Compensation/Management Development Committee of Quaker Chemical’s Board of Directors (in its sole discretion) determines is necessary or appropriate to avoid the additional tax under Section 409A(a)(1)(B) of the Code;
otherwise, this Agreement may not be altered or amended except by an agreement in writing executed by the Company and the Manager. 
  

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	18.	No Waiver. 

 The failure to insist upon
strict compliance with any provision of this Agreement by any party shall not be deemed to be a waiver of any future noncompliance with such provision or of noncompliance with any other provision. 
  

	19.	Severability. 

 In the event that any
provision or portion of this Agreement shall be determined to be invalid or unenforceable for any reason, the remaining provisions of this Agreement shall be unaffected thereby and shall remain in full force and effect. 
  

	20.	Indemnification. 

 The Company shall defend
and hold the Manager harmless to the fullest extent permitted by applicable law in connection with any claim, action, suit, investigation or proceeding arising out of or relating to performance by the Manager of services for, or action of the
Manager as a director, officer or employee of the Company or any parent, subsidiary or affiliate of the Company, or of any other person or enterprise at the Company’s request. Expenses incurred by the Manager in defending such a claim, action,
suit or investigation or criminal proceeding shall be paid by the Company in advance of the final disposition thereof upon the receipt by the Company of an undertaking by or on behalf of the Manager to repay said amount unless it shall ultimately be
determined that the Manager is entitled to be indemnified hereunder; provided, however, that this shall not apply to a nonderivative action commenced by the Company or Quaker Chemical against the Manager. 
  

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 IN WITNESS WHEREOF, the Manager has hereunto set his hand and the Company has caused these presents to be
executed in its name and on its behalf and attested by its Secretary or Assistant Secretary, all as of the day and year first above written. 
  

					
	MANAGER
	
	 /s/ Mark A. Harris

	Mark A. Harris
	
	QUAKER CHEMICAL LIMITED
		
	By:	 	 /s/ Ed ten Duis

		 	Ed ten Duis
	Title:	 	Managing Director

  

	
	ATTEST:
	
	 /s/ Mike Flower

	Mike Flower

  

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 ADDENDUM 1 
 DECLARATION OF SECRECY AND NON-COMPETITION 
 (a) Confidential Information. The Manager
acknowledges that information concerning the method and conduct of the Company’s, Quaker Chemical’s and any of their direct and indirect affiliates (collectively, “Quaker”)’ business, including, without limitation, strategic
and marketing plans, budgets, corporate practices and procedures, financial statements, customer and supplier information, formulae, formulation information, application technology, manufacturing information, and laboratory test methods and all of
Quaker’s manuals, documents, notes, letters, records, and computer programs are Quaker’s trade secrets (“Trade Secrets) and are the sole and exclusive property of Quaker. The Manager agrees that at no time during or following his
employment with the Company or any affiliate will he use, divulge, or pass on, directly or through any other individual or entity, any Trade Secrets. Upon termination of the Manager’s employment with the Company and its affiliates, or at any
other time upon the Company’s request, and regardless of the reason for the termination of the Manager’s employment hereunder, the Manager agrees to forthwith surrender to the Company any and all materials in his possession or control
which constitute or contains any Trade Secrets. The term “Trade Secrets” as used herein does not include information that is in the public domain through no fault of the Manager. 
 (b) Non-competition. The Manager agrees that during his employment and for a period of one (1) year thereafter, regardless of the reason for
the termination of the Manager’s employment, he will not within the Prohibited Area: 
  

	 	(i)	directly or indirectly, together or separately or with any third party, whether as an individual proprietor, partner, stockholder, officer, director, joint venturer, investor, or in
any other capacity whatsoever actively engage in business or assist anyone or any firm in business as a manufacturer, seller, or distributor of specialty chemical products or chemical management services which are the same, like, similar to, or
which compete with the products and services offered by the Company, Quaker Chemical or any of their affiliates during the twelve months immediately preceding the date on which his employment terminates, PROVIDED ALWAYS that the provisions of this
paragraph shall apply only in respect of those products or services with which the Manager was either personally concerned or for which he was responsible while employed by the Company during the twelve months immediately preceding the date on which
his employment terminates; 

  

	 	(ii)	recruit or solicit any Employee of the Company, Quaker Chemical or any of their affiliates, or otherwise induce any Employee to leave the employ of the Company, Quaker Chemical or
any of their affiliates, in order to become an employee or be otherwise engaged by his or any firm, corporation, business or other entity with which he is or may become associated; or 

  

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	 	(iii)	solicit, directly or indirectly, for himself or as agent or employee of any person, partnership, corporation, or other entity (other than for the Company), any Customer or Supplier
of the Company with the intent of actively engaging in business which would cause competitive harm to the Company, Quaker Chemical or any of their affiliates. 

 In this clause (b), the following terms have the following meanings: 
  

	 	(iv)	“Customer” means any person, firm, company or other organisation whatsoever to whom the Company, Quaker Chemical or any of their affiliates has supplied goods or services
and (a) with whom the Manager had personal contact or dealings on behalf of the Company, Quaker Chemical or any of their affiliates during the twelve months immediately preceding the date on which his employment terminates, or (b) for whom
he was in a client management capacity directly responsible during the twelve months immediately preceding the date on which his employment terminates; 

  

	 	(v)	“Employee” means any person who was employed by the Company, Quaker Chemical or any of their affiliates for at least three months prior to and on the date on which the
Manager’s employment terminates and with whom the Manager had material contact or dealings in performing his duties of employment and (a) who had material contact with customers or suppliers of the Company, Quaker Chemical or any of their
affiliates in performing his or her duties of employment with the Company, Quaker Chemical or any of their affiliates; and / or (b) who was a member of the management team of the Company, Quaker Chemical or any of their affiliates; and / or
(c) who was a member of the research and development team of the Company, Quaker Chemical or any of their affiliates; 

  

	 	(vi)	“Prohibited Area” means (a) the United Kingdom, and (b) any other country in the world where, on the date on which the Manager’s employment terminates, the
Company, Quaker Chemical or any of their affiliates develop, sell, supply, manufacture or research their products or services, or where the Company, Quaker Chemical or any of their affiliates intend within three months following the date on which
the Manager’s employment terminates to develop, sell, supply, manufacture or research their products or services and in respect of which the Manager has been responsible (whether alone or jointly with others), concerned or active on behalf of
the Company, Quaker Chemical or any of their affiliates during any part of the twelve months immediately preceding the date on which his employment terminates; and 

  

	 	(vii)	 “Supplier” means any person, company, business entity or other organisation whatsoever who (a) has supplied goods or services to the Company, Quaker
Chemical or any of their affiliates during any part of the twelve months immediately preceding the date on which the Manager’s employment terminates; or (b) has agreed prior to the date 

  

 - 14 - 

	 	 
on which his employment terminates to supply goods or services to the Company, Quaker Chemicals or any of their affiliates to commence at any time in the
twelve months following the date on which his employment terminates; or (c) as at the date on which his employment terminates, supplies goods or services to the Company, Quaker Chemical or any of their affiliates under an exclusive contract or
arrangement between that supplier and the Company, Quaker Chemical or any of their affiliates. 

 (c) Remedies. The
Manager agrees and recognizes that in the event of a breach or threatened breach of the provisions of the restrictive covenants contained in this Addendum 1, the Company, Quaker Chemical or any of their affiliates shall be entitled to seek equitable
remedies, including injunctive relief in any court of applicable jurisdiction. The Company, Quaker Chemical or any of their affiliates may also seek monetary damages. Furthermore, if a court determines that the Manager has breached any of the
provisions of this Addendum 1, the Company’s obligations to pay amounts and continue the benefits under this Agreement to the Manager (and his dependents) shall immediately terminate. 
 (d) Affiliates. In relation to its affiliates (including but not limited to Quaker Chemical), the Company contracts as trustee and agent for the
benefit of each such affiliate. The Manager agrees that, if required to do so by the Company, he will enter into covenants in the same terms as those set out in paragraphs (b) (i) to (iii) hereof directly with all or any of such
affiliates, mutatis mutandis. If the Manager fails, within 7 days of receiving such a request from the Company, to sign the necessary documents to give effect to the foregoing, the Company shall be entitled, and is hereby irrevocably and
unconditionally authorised by the Manager, to execute all such documents as are required to give effect to the foregoing, on the Manager’s behalf. 
  

 - 15 -Amendment No. 2 to Fourth Amended And Restated Credit Agreement

 EXHIBIT 4.1 
 AMENDMENT NO. 2 TO FOURTH AMENDED AND RESTATED CREDIT 
 AGREEMENT AND AMENDMENT TO SECURITY
AGREEMENT 
 THIS AMENDMENT NO. 2 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT AND AMENDMENT TO SECURITY AGREEMENT (the
“Amendment Agreement”), is made and effective as of January 8, 2007 among RADIATION THERAPY SERVICES, INC., a Florida corporation (the “Borrower”), each SUBSIDIARY GUARANTOR party to a Subsidiary Guaranty
pursuant to the terms of the Credit Agreement (as defined below), BANK OF AMERICA, N.A., as Administrative Agent (the “Administrative Agent”), and the Lenders party hereto. Unless the context otherwise requires, capitalized terms
used but not defined herein have the meanings ascribed thereto in the Credit Agreement. 
 W I T N E S S E T H: 
 WHEREAS, the Borrower, the Administrative Agent and the Lenders have entered into that certain Fourth Amended and Restated Credit Agreement dated
as of December 16, 2005, as amended by that certain Amendment No. 1 to Fourth Amended and Restated Credit Agreement, Limited Waiver and Consent dated as of November 14, 2006 (as so amended and as hereby amended and as may be modified,
supplemented, amended or amended and restated from time to time, the “Credit Agreement”), whereby the Lenders have made available to the Borrower a term loan B facility and a revolving credit facility with a letter of credit subfacility
and a swing line subfacility; and 
 WHEREAS, the Borrower has notified the
Administrative Agent that on January 3, 2007 (the “Acquisition Date”), 21st Century Oncology of
Pennsylvania, Inc. (“21CPA”) acquired 67.5% of the membership interests of Gettysburg Radiation, LLC (“GRLLC”), an entity developing a radiation therapy treatment center in Gettysburg, Pennsylvania (the “Gettysburg
Acquisition”); and 
 WHEREAS, the Borrower has further notified the Administrative Agent that (i) as of the Acquisition
Date, GRLLC had outstanding Indebtedness of approximately $3,100,000 pursuant to two promissory notes to Commerce Bank, N.A. (the “Commerce Bank Indebtedness”), which Indebtedness was incurred to finance the acquisition and installation of
certain medical equipment (the “Medical Equipment”) and was secured by all of the assets of GRLLC, (ii) since the Acquisition Date, 21CPA has purchased all of the Medical Equipment and certain other fixed assets of GRLLC for a
purchase price of $3,100,000, which amount was used by GRLLC to repay and terminate the Commerce Bank Indebtedness, (iii) 21CPA has provided and intends to further provide GRLLC with working capital financing in an aggregate amount not
to exceed $1,000,000; and 
 WHEREAS, the definition of “Excluded Subsidiary” in the Credit Agreement provides that an
Excluded Subsidiary shall have no Indebtedness other than Permitted Excluded Subsidiary Loans, which is defined to mean Indebtedness owing by an Excluded Subsidiary to the Borrower in a principal amount not exceeding $500,000 per Excluded Subsidiary
and $3,000,000 in the aggregate; and 

 WHEREAS, Section 11.2(v) of the Credit Agreement allows for certain purchase money
Indebtedness of the Borrower and its Subsidiaries (including Excluded Subsidiaries), which unintentionally conflicts with the Indebtedness limitations associated with Excluded Subsidiaries set forth in the definition of “Excluded
Subsidiary”; and 
 WHEREAS, the Borrower has delivered to the Administrative Agent a certificate designating GRLLC as an
Excluded Subsidiary pursuant to the Credit Agreement; and 
 WHEREAS, the Borrower has requested that the Lenders and the
Administrative Agent (i) amend the definition of Excluded Subsidiary to eliminate the ambiguity and clearly provide that Excluded Subsidiaries may have purchase money Indebtedness within the limitations of Section 11.2(v) and
(ii) amend the definition of Permitted Excluded Subsidiary Loan as set forth herein; and 
 WHEREAS, the Borrower has further
requested that (i) the deadline for receipt of certain of the Mortgages and Mortgage Property Support Documents with respect to certain properties located in Michigan be extended until June 30, 2007 and (ii) Sections 9.10 and 9.11 of
the Credit Agreement be amended to increase the threshold for when a Mortgage may be required and, in the case of Section 9.10, to provide the Borrower with more time for certain of the delivery requirements set forth therein; 
 WHEREAS, the Borrower has notified the Administrative Agent that certain of its recently acquired Subsidiaries have Deposit Accounts (such term as
used herein to have the meaning set forth in the Security Agreement), with collected balances greater than $100,000, which are not currently subject to a Qualifying Control Agreement (such term as used herein to have the meaning set forth in the
Security Agreement) but which are held by a Lender, and the Borrower has requested that the requirement for a Qualifying Control Agreements be eliminated with respect to Deposit Accounts that are held by a Lender; 
 WHEREAS, the Administrative Agent and the Lenders signatory hereto are willing so to effect such amendments, in each case as set forth below
pursuant to the terms and conditions contained in this Agreement; 
 NOW, THEREFORE, in consideration of the premises and further
valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties hereto agree as follows: 
 1. Credit
Agreement. The term “Credit Agreement” as used herein and in the Credit Documents (as defined in the Credit Agreement) shall mean the Credit Agreement as hereby amended and modified. 
 2. Amendments. Subject to the conditions set forth herein, the Credit Agreement and the Security Agreement are hereby amended as follows:

  

 2 

 (a) Section 1.2 of the Credit Agreement is hereby amended to amend and restate in
its entirety the definition of “Excluded Subsidiary” and to change the defined term “Permitted Excluded Subsidiary Loan” to “Permitted Excluded Subsidiary Loans” and to amend and restate the definition of such defined
term, to read as follows: 
 “Excluded Subsidiary” shall mean any Subsidiary of the Borrower or one of its
Subsidiaries existing as of the Effective Date or thereafter created or acquired in connection with a transaction permitted under Section 11.5(vii) which is not a Subsidiary Guarantor and which is designated by an Authorized Officer of
the Borrower as an Excluded Subsidiary in a certificate delivered to the Administrative Agent in the form attached hereto as Exhibit H and which Subsidiary (i) shall have no Indebtedness other than (x) Permitted Excluded Subsidiary
Loans and (y) purchase money Indebtedness permitted by Section 11.2(v), and (ii) shall not guaranty or otherwise directly or indirectly provide credit support for any Indebtedness of the Borrower or any Subsidiary Guarantor.

 “Permitted Excluded Subsidiary Loans” shall mean loans from the Borrower or any Subsidiary to an Excluded
Subsidiary, in an aggregate principal amount not to exceed $1,000,000 per Excluded Subsidiary, and not to exceed $10,000,000 principal outstanding for all Excluded Subsidiaries, (A) which are secured by the Excluded Subsidiary granting to the
Borrower or the lending Subsidiary a Lien on its tangible and intangible assets, including, if the Borrower or such lending Subsidiary elects, real property, and which Lien (i) constitutes a first priority perfected security interest on such
assets, and (ii) has been pledged to the Administrative Agent for the benefit of the Lenders, and (B) for which documentation evidencing (i) and (ii) above shall have been delivered to the Administrative Agent in form and
substance acceptable to the Administrative Agent in its reasonable discretion. 
 (b) Section 9.10 of the Credit
Agreement is hereby amended and restated in its entirety to read as follows: 
 9.10 Creation or Acquisition of
Subsidiaries. Subject to the provisions of Section 11.5, the Borrower may from time to time create or acquire new Subsidiaries (including Excluded Subsidiaries) in connection with Permitted Acquisitions or otherwise, and the
Subsidiaries of the Borrower may create or acquire new Subsidiaries, provided that: 
 (a) Concurrently with (and in
any event within thirty (30) Business Days thereafter in the case of clauses (i) and (ii) below and ninety (90) Business Days in the case of clause (iii) below) the creation or direct or indirect acquisition by the Borrower
thereof, each such new Subsidiary that is not designated as an Excluded Subsidiary will execute and deliver 

  

 3 

 
to the Administrative Agent (i) a joinder to the Subsidiary Guaranty, pursuant to which such new Subsidiary shall become a party thereto and shall
guarantee the payment in full of the Obligations of the Borrower under this Agreement and the other Credit Documents, (ii) a joinder to the Security Agreement, pursuant to which such new Subsidiary shall become a party thereto and shall, grant
to the Administrative Agent a first priority Lien upon and security interest in its accounts receivable, inventory, equipment, general intangibles and other personal property as Collateral for its obligations under the Subsidiary Guaranty, subject
only to Permitted Liens and (iii) a Mortgage with respect to any real property owned by such Subsidiary (or a landlord lien waiver with respect to any real property leased by such Subsidiary), together with all Mortgaged Property Support
Documents; provided, however, that in the event any real property owned by such Subsidiary has an appraised or book value of $1,000,000 or less, a Mortgage shall only be required upon the request of the Administrative Agent or the
Required Lenders; 
 (b) Concurrently with (and in any event within thirty (30) Business Days thereafter) the creation or
acquisition of any new Subsidiary (including any Excluded Subsidiary) all or a portion of the Capital Stock of which is directly owned by the Borrower, the Borrower will execute and deliver to the Administrative Agent an amendment or supplement to
the Security Agreement pursuant to which all of the Capital Stock of such new Subsidiary owned by the Borrower shall be pledged to the Administrative Agent, together with the certificates evidencing such Capital Stock and undated stock powers duly
executed in blank; and concurrently with (and in any event within thirty (30) Business Days thereafter) the creation or acquisition of any new Subsidiary all or a portion of the Capital Stock of which is directly owned by another Subsidiary
(the “Parent Subsidiary”), the Parent Subsidiary will execute and deliver to the Administrative Agent an appropriate joinder, amendment or supplement to the Security Agreement pursuant to which all of the Capital Stock of such new
Subsidiary owned by such Parent Subsidiary shall be pledged to the Administrative Agent, together with the certificates evidencing such Capital Stock and undated stock powers duly executed in blank; and 
 (c) As promptly as reasonably possible, the Borrower and its Subsidiaries (including all Excluded Subsidiaries) will deliver any such
other documents, certificates and opinions, and opinions of local counsel in the jurisdiction of organization of each such new Subsidiary (including an Excluded Subsidiary), in form and substance reasonably satisfactory to the Administrative Agent,
as the Administrative Agent may reasonably request in connection therewith and will take such other action as the Administrative Agent may reasonably request to create in favor of the Administrative Agent a perfected security interest in the
Collateral being pledged pursuant to the documents described above. 
  

 4 

 (c) Section 9.11 of the Credit Agreement is hereby amended and restated in its entirety to read as
follows: 
 9.11 Additional Security. The Borrower will, and will cause each of its Subsidiaries to grant to the Administrative Agent
from time to time security interests, mortgages and other Liens in and upon such assets and properties of the Borrower or such Subsidiary as are not covered by the Security Documents executed and delivered before or on the Effective Date or pursuant
to Section 9.10 (including, without limitation, Liens on assets acquired by the Borrower or a Subsidiary in connection with any Permitted Acquisition) provided, however, that in the event any real property owned by the
Borrower or such Subsidiary has an appraised or book value of $1,000,000 or less, a Mortgage shall only be required upon the request of the Administrative Agent or the Required Lenders. Such security interests, mortgages and Liens shall be granted
pursuant to documentation in form and substance reasonably satisfactory to the Administrative Agent and shall constitute valid and perfected security interests and Liens subject to no Liens other than Permitted Liens. Without limitation of the
foregoing, in connection with the grant of any mortgage or deed of trust with respect to any interest in real property, the Borrower will, and will cause each applicable Subsidiary to, at the Borrower’s expense, prepare, obtain and deliver to
the Administrative Agent all Mortgaged Property Support Documents within 90 days after the date of acquisition by the Borrower or any Subsidiary of the real property for which a Mortgage is required under this Section. 
 (d) Section 4.19(ii) of the Security Agreement is hereby amended by restating the first sentence thereof in its entirety to read as
follows: 
 (ii) Except with the express prior written consent of the Administrative Agent in each instance, all Deposit
Accounts in which collected balances or deposits in excess of $100,000 are or may at any time be credited or maintained shall be maintained at all times with either (X) depositary institutions as to which the Administrative Agent shall
have received a Qualifying Control Agreement or (Y) a Lender; provided however, that following the occurrence of an Event of Default, each Pledgor shall provide the Administrative Agent with a Qualifying Control Agreement with respect to any
Deposit Account for which the Administrative Agent has made a request, within thirty (30) days of such request. Without limiting the generality of the foregoing, no Pledgor shall cause, suffer or permit (x) any deposit in excess of
$100,000 to be evidenced by a certificate of deposit unless such certificate of deposit is a negotiable instrument and immediately upon receipt thereof such certificate shall have been delivered to the Administrative Agent, together with a
duly executed undated assignment in blank affixed thereto, or (y) any Deposit Account not listed on Annex H attached hereto to be opened or maintained except in each case upon giving not less than thirty (30) days’ prior
written notice to the 

  

 5 

 
Administrative Agent and taking or causing to be taken at such Pledgor’s expense all such Perfection Action, including the delivery of such Perfection
Documents, as may be reasonably requested by the Administrative Agent to perfect or protect, or maintain the perfection and priority of, the Lien of the Administrative Agent for the benefit of the Secured Parties in Collateral contemplated
hereunder. 
 3. Extension for Michigan Mortgages and Mortgage Property Support Documents. Notwithstanding the provisions contained in
the Credit Agreement, the parties hereto agree that the deadline for receipt of the Mortgages and Mortgage Property Support Documents with respect to certain properties located in Michigan be extended until June 30, 2007. 
 4. Representations, Warranties and Covenants. The Borrower hereby represents, warrants and covenants that: 
 (a) The representations and warranties made by the Borrower in Article VIII of the Credit Agreement are true on and as of the date hereof,
except to the extent that such representations and warranties expressly relate to an earlier date; 
 (b) There has been no
Material Adverse Change in the condition, financial or otherwise, of the Borrower since the date of the most recent financial reports of the Borrower delivered pursuant to Section 9.1 of the Credit Agreement; 
 (c) The business and properties of the Borrower are not and have not been adversely affected in any substantial way as the result of any
fire, explosion, earthquake, accident, strike, lockout, combination of workers, flood, embargo, riot, activities of armed forces, war or acts of God or the public enemy, or cancellation or loss of any major contracts; 
 (d) No Default or Event of Default, other than those addressed herein, has occurred and is continuing immediately prior to the
effectiveness of this Amendment Agreement and no Default or Event of Default is continuing immediately after the effectiveness of this Amendment Agreement. 
 5. Conditions. This Amendment Agreement shall become effective upon the Borrower delivering to the Administrative Agent the following: 
 (a) a counterpart of this Amendment Agreement duly executed by the Administrative Agent, such Lenders as are necessary to constitute the
Required Lenders, the Borrower and the Subsidiary Guarantors; 
  

 6 

 (b) all fees and expenses payable by the Borrower by reason of this Amendment Agreement;
and 
 (c) such other documentation, instruments, consents and agreements as the Administrative Agent shall reasonably
request. 
 6. Full Force and Effect of Agreement. Except as hereby specifically amended, modified or supplemented, the Credit
Agreement and all of the other Credit Documents are hereby confirmed and ratified in all respects and shall remain in full force and effect according to their respective terms. 
 7. Counterparts. This Amendment Agreement may be executed in any number of counterparts and all the counterparts taken together shall be
deemed to constitute one and the same instrument. Delivery of an executed counterpart of a signature page of this Amendment Agreement by telecopy or electronic delivery (including by .pdf) shall be effective as delivery of a manually executed
counterpart of this Amendment Agreement. 
 8. Documentation. All instruments and documents incident to the consummation of the
transactions contemplated hereby shall be satisfactory in form and substance to the Administrative Agent and its counsel; the Administrative Agent shall have received copies of all additional agreements, instruments and documents which it may
reasonably request in connection therewith, such documents, when appropriate, to be certified by appropriate corporate or governmental authorities; and all proceedings of the Borrower relating to the matters provided for herein shall be satisfactory
to the Administrative Agent and its counsel. 
 9. Entire Agreement. This Amendment Agreement sets forth the entire understanding and
agreement of the parties hereto in relation to the subject matter hereof and supersedes any prior negotiations and agreements among the parties relative to such subject matter. None of the terms or conditions of this Amendment Agreement may be
changed, modified, waived or canceled orally or otherwise, except as provided in the Credit Agreement. 
 10. Ratification. Except as
hereby specifically amended, modified or supplemented, the Credit Agreement and all of the other Credit Documents are hereby confirmed and ratified in all respects and shall remain in full force and effect according to their respective terms.

 11. Consent of the Subsidiary Guarantors. Each Subsidiary Guarantor hereby consents, acknowledges and agrees to the amendments set
forth herein and hereby confirms, reaffirms and ratifies in all respects the Subsidiary Guaranty to which such Subsidiary Guarantor is a party (including without limitation the continuation of such Subsidiary Guarantor’s payment and performance
obligations thereunder upon and after the effectiveness of this Amendment Agreement and the amendments contemplated hereby) and the enforceability of the Subsidiary Guaranty against such Subsidiary Guarantor in accordance with its terms. 

 

 7 

 [Remainder of page intentionally left blank.] 
  

 8 

 IN WITNESS WHEREOF, the parties hereto have caused this Amendment Agreement to be duly executed by their
duly authorized officers, and effective as of the day and year first above written. 
  

			
	BORROWER:
	
	RADIATION THERAPY SERVICES, INC.
		
	By:	 	 /s/ David M. Koeninger

	Name:	 	David M. Koeninger
	Title:	 	Executive Vice President – Chief Financial Officer
	
	GUARANTORS:
	
	 21ST CENTURY ONCOLOGY, INC.

	 21ST CENTURY ONCOLOGY OF NEW JERSEY, INC.

	 21ST CENTURY ONCOLOGY OF ALABAMA, INC.

	 NEW YORK RADIATION THERAPY MANAGEMENT SERVICES, INCORPORATED

	 NEVADA RADIATION THERAPY MANAGEMENT SERVICES, INC.

	 FINANCIAL SERVICES OF SOUTHWEST FLORIDA, LLC.

	 RADIATION THERAPY SCHOOL FOR RADIATION THERAPY TECHNOLOGY, INC.

	 MARYLAND RADIATION THERAPY MANAGEMENT SERVICES, INC.

	 NORTH CAROLINA RADIATION THERAPY MANAGEMENT SERVICES, INC.

	 21ST CENTURY ONCOLOGY OF HARFORD COUNTY, MARYLAND LLC

	 21ST CENTURY ONCOLOGY OF PENNSYLVANIA, INC.

	 NEW ENGLAND RADIATION THERAPY MANAGEMENT SERVICES, INC.

	 ARIZONA RADIATION THERAPY MANAGEMENT SERVICES, INC.

		
	By:	 	 /s/ David M. Koeninger

	Name:	 	David M. Koeninger
	Title:	 	Vice President

 AMENDMENT NO. 2 TO FOURTH AMENDED AND RESTATED 
 CREDIT AGREEMENT, CONSENT AND LIMITED WAIVER 

			
	 MICHIGAN RADIATION THERAPY MANAGEMENT SERVICES, INC.

	 21ST CENTURY ONCOLOGY OF PRINCE GEORGES COUNTY, MARYLAND, LLC

	 21ST CENTURY ONCOLOGY MANAGEMENT SERVICES, INC.

	 AMERICAN CONSOLIDATED TECHNOLOGIES LLC

	 PHOENIX MANAGEMENT COMPANY, LLC

	 21ST CENTURY ONCOLOGY OF JACKSONVILLE INC.

	 CALIFORNIA RADIATION THERAPY MANAGEMENT SERVICES, INC.

		
	By:	 	 /s/ David M. Koeninger

	Name:	 	David M. Koeninger
	Title:	 	Vice President
	
	21ST CENTURY ONCOLOGY OF KENTUCKY, LLC
		
	By:	 	 /s/ David M. Koeninger

	Name:	 	David M. Koeninger
	Title:	 	Chief Financial Officer

 AMENDMENT NO. 2 TO FOURTH AMENDED AND RESTATED 
 CREDIT AGREEMENT, CONSENT AND LIMITED WAIVER 

			
	BANK OF AMERICA, N.A., as Administrative Agent
		
	By:	 	 /s/ Anne M. Zeschke

	Name:	 	Anne M. Zeschke
	Title:	 	Assistant Vice President
	
	BANK OF AMERICA, N.A., as a Lender, as Swingline Lender and as Issuing Bank
		
	By:	 	 /s/ Alexander L. Rody

	Name:	 	Alexander L. Rody
	Title:	 	Senior Vice President
	
	FIFTH THIRD BANK
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	SUNTRUST BANK
		
	By:	 	 /s/ Mark D. Mattson

	Name:	 	Mark D. Mattson
	Title:	 	Managing Director
	
	WACHOVIA BANK, NATIONAL ASSOCIATION
		
	By:	 	 /s/ Kirk Tesch

	Name:	 	Kirk Tesch
	Title:	 	Vice President
	
	REGIONS BANK
		
	By:	 	  

	Name:	 	
	Title:	 	

 AMENDMENT NO. 2 TO FOURTH AMENDED AND RESTATED 
 CREDIT AGREEMENT, CONSENT AND LIMITED WAIVER 

			
	NATIONAL CITY BANK OF KENTUCKY
		
	By:	 	 /s/ Deroy Scott

	Name:	 	Deroy Scott
	Title:	 	Senior Vice President
	
	CAROLINA FIRST BANK
		
	By:	 	 /s/ Kevin M. Short

	Name:	 	Kevin M. Short
	Title:	 	Senior Vice President
	
	THE INTERNATIONAL BANK OF MIAMI, N.A.
		
	By:	 	 /s/ Panayiotis Ch. Zotos

	Name:	 	Panayiotis Ch. Zotos
	Title:	 	Senior Vice President
	
	LASALLE BANK, NATIONAL ASSOCIATION
		
	By:	 	 /s/ Whitney M. Black

	Name:	 	Whitney M. Black
	Title:	 	Vice President

 AMENDMENT NO. 2 TO FOURTH AMENDED AND RESTATED 
 CREDIT AGREEMENT, CONSENT AND LIMITED WAIVER

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