Document:

Employment Agreement

 Exhibit 10.1 
 MAXWELL TECHNOLOGIES, INC. 
 9244 BALBOA
AVENUE 
 SAN DIEGO, CA 92123 
 MARCH 23, 2009 
 Mr. Kevin Royal 
 975 Willow Glen Way 
 San Jose, CA 95125 
 Dear Kevin: 
 Maxwell Technologies, Inc. (the
“Company”) is pleased to offer you employment on the following terms: 
 1. Position. Your title will be Senior Vice
President & Chief Financial Officer, Treasurer and Secretary of the Company and you will report directly to David J. Schramm, Chief Executive Officer. This is a full-time position. While you render services to the Company, you will not
engage in any other employment, consulting or other business activity (whether full-time or part-time) that would create a conflict of interest with the Company. By signing this letter agreement, you confirm to the Company that you have no
contractual commitments or other legal obligations that would prohibit you from performing your duties for the Company. 
 2. Salary.
The Company will pay you a starting salary at the rate of $275,000 per year, payable in accordance with the Company’s standard payroll schedule. This salary will be subject to adjustment pursuant to the Company’s employee compensation
policies in effect from time to time. 
 3. Bonus. You will be eligible to be considered for an incentive bonus for each fiscal year
of the Company. The bonus (if any) will be awarded based on objective or subjective criteria established by the CEO. Your target bonus will be equal to 50% of your annual base salary. The bonus for each fiscal year will be paid after the
Company’s books for that year have been closed and will be paid only if you are employed by the Company at the time of payment. The determinations of the CEO and the Board of Directors or its Compensation Committee with respect to your bonus
will be final and binding. 
 4. Employee Benefits. As an executive officer of the Company, you will be eligible to participate in a
number of Company-sponsored benefits. In addition, you will be entitled to paid vacation in accordance with the Company’s vacation policy, as in effect from time to time. 
 5. Stock Options. Subject to the approval of the Compensation Committee of the Company’s Board of Directors, you will be granted an option to
purchase 100,000 shares of the Company’s Common Stock. The exercise price per share will be equal to the closing price on the date when the option is granted. The option will be subject to the terms and conditions 

 Mr. Kevin Royal 
  Page

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 March 23, 2009 
  

 
applicable to options granted under the Company’s 2005 Omnibus Equity Incentive Plan (the “Plan”), as described in the Plan and the applicable
Stock Option Agreement. You will vest in 30% of the Option shares after 12 months of continuous service, an additional 30% of the Option shares after 24 months of continuous service, an additional 20% of the Option shares after 36 months of
continuous service, and the balance upon completion of 48 months of continuous service, as described in the applicable Stock Option Agreement. If the Company is subject to a Change of Control (as defined in the Plan) before your service with the
Company terminates, and if you are subject to an Involuntary Termination (as defined in Section 14) within 6 months after that Change of Control, then you will vest in all of the option shares. 
 6. Restricted Shares. Subject to the approval of the Compensation Committee of the Company’s Board of Directors, you will be granted a total
of 40,000 restricted shares of the Company’s Common Stock. The award will be subject to the terms and conditions of the Plan, as described in the Plan and the applicable Restricted Stock Agreements. 20,000 of the shares will vest based on
achievement of performance milestones established by the CEO, as described in the applicable Restricted Stock Agreement. Additionally, 20,000 of the restricted shares of the Company’s Common Stock will be vested on length of service and not
based on performance milestones. You will vest in 25% of the shares after 12 months of continuous service, and the balance will vest in equal annual installments over the next 36 months of continuous service, as described in the applicable
Restricted Stock Agreement. If the Company is subject to a Change of Control before your service with the Company terminates, and if you are subject to an Involuntary Termination within 6 months after that Change of Control, then you will vest in
all of the shares. 
 7. Relocation Allowance. To assist in your relocation Maxwell will provide you with a furnished
one-bedroom apartment in San Diego for a maximum of six months from your hire date. Further, we will reimburse you for normal moving expenses up to a maximum of $30,000 as defined in “Maxwell Technologies Executive Relocation Assistance
Guidelines”. 
 8. Severance Benefits. If the Company terminates your employment for any reason other than Cause and a Separation
(as such terms are defined in Section 14), occurs, then you will be entitled to the following benefits: 
 (a) The
Company will continue to pay your base salary for a period of six months after your Separation. Your base salary will be paid at the rate in effect at the time of your Separation and in accordance with the Company’s standard payroll procedures.
The salary continuation payments will commence within 30 days after the Release Deadline and, once they commence, will be retroactive to the date of your Separation. However, this Section 8 will not apply unless you (i) have returned all
Company property in your possession, (ii) have resigned as a member of the boards of directors of the Company and all of its subsidiaries, to the extent applicable, and (iii) have executed a general release of all claims that you may have
against the Company or persons affiliated with the Company. The release must be in the form prescribed by the Company, without alterations. You must execute and return the release on or before the date specified by the Company in the prescribed form
(the “Release Deadline”). The Release Deadline 

 Mr. Kevin Royal 
  Page

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 March 23, 2009 
  

 
will in no event be later than 60 days after your Separation. If you fail to return the release on or before the Release Deadline, or if you revoke the
release, then you will not be entitled to the benefits described in this Section 8. 
 (b) It you elect to continue your
health insurance coverage under the Consolidated Omnibus Budget Reconciliation Act (“COBRA”) following the termination of your employment, then the company will reimburse you for the amount equivalent to the employer’s contribution
while you were employed for a maximum period of six months following the termination of your employment. 
 9. Proprietary Information and
Inventions Agreement. Like all Company employees, you will be required, as a condition of your employment with the Company, to sign the Company’s standard Proprietary Information and Inventions Agreement, a copy of which is attached hereto
as Exhibit A. 
 10. Employment Relationship. Employment with the Company is for no specific period of time. Your
employment with the Company will be “at will,” meaning that either you or the Company may terminate your employment at any time and for any reason, with or without cause. Any contrary representations that may have been made to you are
superseded by this letter agreement. This is the full and complete agreement between you and the Company on this term. Although your job duties, title, compensation and benefits, as well as the Company’s personnel policies and procedures, may
change from time to time, the “at will” nature of your employment may only be changed in an express written agreement signed by you and a duly authorized officer of the Company. 
 11. Tax Matters. 
 (a)
Withholding. All forms of compensation referred to in this letter agreement are subject to reduction to reflect applicable withholding and payroll taxes and other deductions required by law. 
 (b) Section 409A. For purposes of Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”), each salary
continuation payment under Section 8 is hereby designated as a separate payment. If the Company determines that you are a “specified employee” under Section 409A(a)(2)(B)(i) of the Code at the time of your Separation, then
(i) the salary continuation payments under Section 8, to the extent that they are subject to Section 409A of the Code, will commence during the seventh month after your Separation and (ii) the installments that otherwise would
have been paid during the first six months after your Separation will be paid in a lump sum when the salary continuation payments commence. 
 (c) Tax Advice. You are encouraged to obtain your own tax advice regarding your compensation from the Company. You agree that the Company does not have a duty to design its compensation policies in a manner that minimizes your tax
liabilities, and you will not make any claim against the Company or its Board of Directors related to tax liabilities arising from your compensation. 

 Mr. Kevin Royal 
  Page

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 March 23, 2009 
  

 12. Interpretation, Amendment and Enforcement. This letter agreement and Exhibit A
constitute the complete agreement between you and the Company, contain all of the terms of your employment with the Company and supersede any prior agreements, representations or understandings (whether written, oral or implied) between you and the
Company. This letter agreement may not be amended or modified, except by an express written agreement signed by both you and a duly authorized officer of the Company. The terms of this letter agreement and the resolution of any disputes as to the
meaning, effect, performance or validity of this letter agreement or arising out of, related to, or in any way connected with, this letter agreement, your employment with the Company or any other relationship between you and the Company (the
“Disputes”) will be governed by California law, excluding laws relating to conflicts or choice of law. You and the Company submit to the exclusive personal jurisdiction of the federal and state courts located in San Diego in connection
with any Dispute or any claim related to any Dispute. 
 13. Arbitration. Any controversy or claim arising out of this letter
agreement and any and all claims relating to your employment with the Company will be settled by final and binding arbitration. The arbitration will take place in San Diego or, at your option, the County in which you primarily worked when the
arbitrable dispute or claim first arose. The arbitration will be administered by the American Arbitration Association under its National Rules for the Resolution of Employment Disputes. Any award or finding will be confidential. You and the Company
agree to provide one another with reasonable access to documents and witnesses in connection with the resolution of the dispute. You and the Company will share the costs of arbitration equally, except that the Company will bear the cost of the
arbitrator’s fee and any other type of expense or cost that you would not be required to bear if you were to bring the dispute or claim in court. Each party will be responsible for its own attorneys’ fees, and the arbitrator may not award
attorneys’ fees unless a statute or contract at issue specifically authorizes such an award. This Section 13 does not apply to claims for workers’ compensation benefits or unemployment insurance benefits. Injunctive relief and other
provisional remedies will be available in accordance with Section 1281.8 of the California Code of Civil Procedure. 
 14.
Definitions. The following terms have the meaning set forth below wherever they are used in this letter agreement: 
 “Cause” means (a) your unauthorized use or disclosure of the Company’s confidential information or trade secrets, (b) your breach of any agreement between you and the Company, (c) your material failure
to comply with the Company’s written policies or rules, (d) your conviction of, or your plea of “guilty” or “no contest” to, a felony under the laws of the United States or any State, (e) your gross negligence or
willful misconduct, (f) your continuing failure to perform assigned duties after receiving written notification of the failure from the Company’s Board of Directors or (g) your failure to cooperate in good faith with a governmental or
internal investigation of the Company or its directors, officers or employees, if the Company has requested your cooperation. 
 “Involuntary Termination” means either (a) involuntary discharge by the Company for reasons other than Cause or (b) voluntary resignation following (i) a change in your position with the Company that
materially reduces your level of authority or responsibility, (ii) a reduction in your base salary by more than 10% or (iii) receipt of notice that your principal workplace will be relocated more than 50 miles. 

 Mr. Kevin Royal 
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 March 23, 2009 
  

 “Separation” means a “separation from service,” as defined in the
regulations under Section 409A of the Code. 
 * * * * * 
 We hope that you will accept our offer to join the Company. You may indicate your agreement with these terms and accept this offer by signing and dating both the enclosed duplicate original of this letter agreement
and the enclosed Proprietary Information and Inventions Agreement and returning them to me. This offer, if not accepted, will expire at the close of business on April 10, 2009. As required by law, your employment with the Company is contingent
upon your providing legal proof of your identity and authorization to work in the United States. We anticipate your employment to start within forty-five days after acceptance. 
  

			
	Maxwell Technologies, Inc.
		
	By:	 	 /s/ David J. Schramm

		 	David J. Schramm
	Title:	 	Chief Executive Officer

  

	
	I have read and accept this employment offer:
	
	 /s/ Kevin Royal

	Signature of Kevin RoyalRenewal Letter Agreement, dated as of May 4, 2009

 Exhibit 10.1 
 Sirona Holdings Luxco S.C.A. 
 Société en commandite par actions

 Registered office: 
 412F, route d’Esch 
 L-1030 Luxembourg 
 R.C.S. B 109399 
 4 May 2009 
 Sirona Dental Services GmbH 
 Fabrikstrasse 31 
 64625 Bensheim 
 Germany 
  

			
	Re:	 	Renewal of that certain Advisory Services Agreement made and entered into as of 1 October 2005.

 Reference is made to that certain Advisory Services Agreement (as amended, the “Services
Agreement”) made and entered into as of 1 October 2005 by and between Sirona Dental Services GmbH, a corporation organized under the laws of Germany (the “Company”) and Sirona Holdings Luxco S.C.A., a
société en commandite par actions organized under the laws of the Grand Duchy of Luxembourg (“Advisor”) by which Advisor provides the Company certain services as set forth in the Services Agreement. A fully
executed copy of the Services Agreement is attached hereto as Exhibit A. 
 The Company and Advisor desire to renew the term of the
Services Agreement for a one year period beginning on 1 October 2008 and for each one year period thereafter. The Company and Advisor hereby agree that, effective as of 1 October 2008, the Services Agreement is renewed for a term of one
year from such date and that such term will automatically, without the need for further action by the parties, renew thereafter for successive one year renewal terms; provided that either party may terminate the Services Agreement as of the end of
any one year renewal term by providing written notice to the other party no less than sixty (60) days before the end of such one year renewal term of such party’s desire to terminate the Services Agreement effective as of the end of such
renewal term. The Services Agreement is in full force and effect and with the same effect as if the renewal evidenced hereby had been entered into prior to 1 October 2008. 
 In addition, the Company desires to assign all of its interest in and to the Services Agreement to Sirona Dental Systems, Inc., a Delaware corporation
(“Sirona Inc.”), effective as of the date hereof, all in accordance with the terms and conditions set forth in that certain Assignment and Assumption Agreement (the “Assignment and Assumption Agreement”) by and
among the Company, Advisor and Sirona Inc., dated as of the date hereof, and Advisor agrees to such assignment and assumption. A fully executed copy of the Assignment and Assumption Agreement is attached hereto as Exhibit B. The parties
acknowledge that as of 1 October 2008, Sirona Inc. has been the beneficiary of the services provided under the Services Agreement. 

 IN WITNESS WHEREOF, the parties hereto have executed this letter agreement as of the date first
written above. 
  

			
	SIRONA HOLDINGS LUXCO S.C.A.
	BY SIRONA HOLDINGS S.A. ITS SOLE MANAGER
		
	By:	 	 /s/ Nicholas W. Alexos

	Name:	 	Nicholas W. Alexos
	Its:	 	“A” Director
		
	By:	 	 /s/ Michel E. Raffoul

	Name:	 	Michel E. Raffoul
	Its:	 	“B” Director

  

			
	SIRONA DENTAL SERVICES GMBH
		
	By:	 	 /s/ Tom Redlich

	Name:	 	Tom Redlich
	Its:	 	General Counsel Europe / Asia Pacific

 ACKNOWLEDGED 
 as of this 4th day of May 2009: 
  

			
	SIRONA DENTAL SYSTEMS, INC.
		
	By:	 	 /s/ Jonathan Friedman

	Name:	 	Jonathan Friedman
	Its:	 	General Counsel and Secretary

 EXHIBIT A 
 ADVISORY SERVICES AGREEMENT 
 This Advisory Services Agreement (this
“Agreement”) is made and entered into as of 1 October 2005 by and between Blitz F04-506 GmbH (to be known as: Sirona Dental Services GmbH), a corporation organized under the laws of Germany (the “Company”), and
Sirona Holdings Luxco S.C.A., a société en commandite par actions organized under the laws of the Grand Duchy of Luxembourg (the “Advisor”). 
 This Agreement records a prior verbal agreement of the parties hereto and shall become effective on 1 October 2005 (the “Effective
Date”). 
 WHEREAS, funds represented by MDP IV Offshore GP, LP (the “Sponsor”) have made an investment in the
Advisor and have entered into a securityholders agreement with the Advisor and other securityholders dated as of 30 June 2005, as may be amended from time to time (the “Securityholders Agreement”); 
 WHEREAS, representatives of the Sponsor sit on the board of managers of the Advisor and these and other individuals to whom the Company has access have
expertise in the areas of strategy, investment, monitoring and other matters relating to the Company and its business; 
 WHEREAS, the
Advisor is willing to render certain services to the Company, its Subsidiaries and Affiliates (each a “Beneficiary Affiliate” and, together, the “Beneficiary Affiliates”); 
 WHEREAS, the Company desires to retain the Advisor, and the Advisor desires to be retained, to provide the services described herein to the Company and
to each of its Beneficiary Affiliates; 
 NOW, THEREFORE, in consideration of the premises and mutual covenants contained herein and other
good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties to this Agreement hereby agree as follows: 
 1. Appointment. The Company hereby engages the Advisor to provide the services described in Section 3 hereof for the term of this Agreement on the terms and subject to the conditions of this
Agreement. 
 2. Term. This Agreement shall be in effect for an initial term commencing on the Effective Date and ending on the third
anniversary of the Effective Date. The initial term may be extended thereafter on a year to year basis upon agreement of the parties. Notwithstanding the above, this Agreement may be terminated unilaterally by one party following a willful material
breach of this Agreement by the counterparty which is not cured within thirty (30) days of receipt of a written notice from the party requiring cure. The Company’s obligations pursuant to Section 4 and Section 7
hereof shall survive any termination of this Agreement. 

 3. Services. The Advisor and the Company or its Beneficiary Affiliates shall agree upon the
Advisory Services to be performed. Such services may include, without limitation, advice, analysis and assistance in the following areas: 
 (a) the structure, terms, conditions and other provisions, distribution and timing of debt offerings by the Company and its Beneficiary Affiliates and advice regarding relationships with lenders and bankers; 
 (b) financing sources and options; 
 (c)
business development; and 
 (d) other services for the Company and its Beneficiary Affiliates upon which the Company and the Advisor agree,

 (all of the foregoing collectively, the “Advisory Services”). 
 Legal and accountancy services will not be provided by the Advisor. The Advisory Services provided shall be evidenced by documentation recording details of the performance of the Advisory Services to be agreed upon
between the Company and the Advisor or its Beneficiary Affiliates, such documentation to include by way of example: details of the date, time, location, type of service and individual performing the Advisory Services. 
 4. Advisory Fees. 
 (a)
Payment. Annually on the first Business Day after 1 October during the term of this Agreement, the Company shall pay to the Advisor (or, at the Advisor’s request, its designee(s)), in cash or other immediately available funds by
wire transfer to accounts designated by the Advisor, an aggregate amount equal to three hundred twenty-five thousand euro (€325,000) (the “Advisory Fees”) (including out-of-pocket expenses incurred by the Advisor Group in
rendering the Advisory Services), plus VAT in each case where it is applicable, with all such Advisory Fees and VAT being in respect of the preceding accounting period. For the avoidance of doubt, the first such payment shall be made on the first
Business Day after 1 October 2006, for the Advisory Services rendered from the Effective Date to 30 September 2006. Upon termination of this Agreement, the Company shall pay the Advisor a pro-rata Advisory Fee (based upon the annual fee)
with respect to the time elapsed since the end of the previous accounting period, along with any other Accrued Advisory Fees (as defined below), plus VAT if applicable, incurred in connection with Advisory Services rendered but not yet paid for.

 (b) Non-Payment. To the extent the Company is prohibited from paying any portion of the Advisory Fees pursuant to the terms of the
Credit Agreements or any other agreement or indenture governing indebtedness of the Company or any member of the Sirona Group, the non-payment of such portion shall not constitute a default and such portion shall be paid to the Advisor immediately
upon such date as such payment is no longer prohibited pursuant to such agreement or indenture, to the extent permitted by such agreement or indenture (the “Accrued Advisory Fees”). 
  

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 (c) Recharge of Fees. The Advisor acknowledges that the Company may recharge to one or more of its
Beneficiary Affiliates such proportion of the Advisory Fees (and related expenses) as relates to the benefit (if any) provided to such Person by the relevant Advisory Services and the Advisor shall, if requested, provide the Company and such
Beneficiary Affiliates with such evidence as they may reasonably request of such services provided. The Company, regardless of whether or not it recharges any part of the Advisory Fees any of its Beneficiary Affiliates, shall be liable for the full
amount of such Advisory Fees. 
 5. Personnel. The Advisor shall be free to secure the services of such persons as it deems
appropriate to the furnishing of the services required hereunder; provided, however, that no minimum number of hours is required to be devoted by any individual on a weekly, monthly, annual or other basis. The Company acknowledges, on behalf
of itself and its Beneficiary Affiliates, that the Advisor’s services (and those of any relevant individual) are not exclusive to the Company and its Beneficiary Affiliates and that the Advisor may render similar services to other persons and
entities. 
 6. Liability. Neither the Advisor, nor any Person with whom the Advisor subcontracts for the purposes of fulfilling its
obligations hereunder, nor their respective Affiliates, partners (both general and limited), members (both managing and otherwise), employees, agents and representatives (collectively, the “Advisor Group”) shall be liable to any of
the Company or its Beneficial Affiliates for any loss, liability, damage or expense (collectively, “Loss”) arising out of or in connection with the performance of services contemplated by this Agreement, except to the extent that
such Losses arise out of, relate to, or result directly or indirectly from the gross negligence or willful misconduct of one or more members of the Advisor Group. The Advisor makes no representations or warranties, express or implied, in respect of
the services to be provided by the Advisor Group. Except as the Advisor may otherwise agree in writing after the date hereof: (a) each member of the Advisor Group shall have the right to, and shall have no duty (contractual or otherwise) not
to, directly or indirectly (i) engage in the same or similar business activities or lines of business as the Company and its Beneficiary Affiliates or (ii) do business with any client or customer of the Company and its Beneficiary
Affiliates; (b) no member of the Advisor Group shall be liable to the Company and its Beneficiary Affiliates for breach of any duty (contractual or otherwise) by reason of any such activities or of such member’s participation therein; and
(c) in the event that any member of the Advisor Group acquires knowledge of a potential transaction or matter that may be a corporate opportunity for any of the Company and its Beneficiary Affiliates, on the one hand, and an Advisor, on the
other hand, or any other Person, no member of the Advisor Group shall have any duty (contractual or otherwise) to communicate or present such corporate opportunity to the Company and its Beneficiary Affiliates, and, notwithstanding any provision of
this Agreement to the contrary, no member of the Advisor Group shall be liable to the Company and its Beneficiary Affiliates for breach of any duty (contractual or otherwise) by reason of the fact that any member of the Advisor Group directly or
indirectly pursues or acquires such opportunity for itself, directs such opportunity to another Person, or does not present such opportunity to the Company and its Beneficiary Affiliates. Subject to the above, no member of the Advisor Group shall be
liable to any of the Company or its Beneficiary Affiliates for any indirect, special, incidental or consequential damages, including lost profits or savings, whether or not such damages are foreseeable, or in respect of any liabilities relating to
any third party claims (whether based in contract, tort or otherwise) other than for the Claims (as defined in Section 7 below) relating to the services which may be provided by the Advisor hereunder. 
  

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 7. Indemnity. The Company and its Beneficiary Affiliates shall jointly and severally defend,
indemnify and hold harmless each member of the Advisor Group from and against any and all Losses arising from any claim by any Person with respect, or in any way related, to this Agreement (including attorneys’ fees) (collectively,
“Claims”) resulting from any act or omission of any member of the Advisor Group, except to the extent that such Losses arise out of, relate to, or result directly or indirectly from the gross negligence or willful misconduct of one
or more members of the Advisor Group. The Company and its Beneficiary Affiliates shall jointly and severally defend at their own cost and expense any and all suits or actions (just or unjust) which may be brought against any of the Company or its
Beneficiary Affiliates and any member of the Advisor Group or in which any member of the Advisor Group may be impleaded with others upon any Claims, or upon any matter, directly or indirectly, related to or arising out of this Agreement or the
performance hereof by the Advisor Group. 
 8. Severability. Whenever possible, each provision of this Agreement shall be interpreted
in such manner as to be effective and valid under applicable law, but if any provision of this Agreement is held to be invalid, illegal, or unenforceable in any respect under applicable law or rule in any jurisdiction, such invalidity, illegality,
or unenforceability shall not effect the validity, legality, or enforceability of any other provision of this Agreement in such jurisdiction or affect the validity, legality, or enforceability of any provision in any other jurisdiction. Instead,
this Agreement shall be reformed, construed and enforced in such jurisdiction as if such invalid, illegal, or unenforceable provision had never been contained herein. 
 9. Notices. All notices, demands or other communications to be given or delivered under or by reason of the provisions of this Agreement shall be in writing and shall be deemed to have been given (a) when
delivered personally to the recipient, (b) when telecopied to the recipient (with hard copy sent to the recipient by internationally reputable overnight courier service (charges prepaid) that same day) if telecopied before 5:00 p.m., local time
in the jurisdiction of recipient on a Business Day, and otherwise on the next Business Day, or (c) two (2) Business Days after being sent to the recipient by internationally reputable overnight courier service (charges prepaid). Such
notices, demands and other communications shall be sent to the parties hereto at the addresses set forth below. 
 To the Company:

 Blitz F04-506 GmbH 
 (to be
known as: Sirona Dental Services GmbH) 
 Fabrikstrasse 31 
 64625 Bensheim Germany 
 Attention: Simone Blank 
  

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 To the Advisor: 
 Sirona Holdings Luxco S.C.A. 
 10, rue Henri M. Schnadt 
 L-2530 Luxembourg 
 Attention: Alain Peigneux

 with a copy, which shall not constitute notice, to: 
 Kirkland & Ellis LLP 
 200 East Randolph Drive 
 Chicago 
 Illinois 60601-6636 
 United States of America 
 Telephone: +1 312
861 2000 
 Facsimile: +1 312 861 2200 
 Attention: Sanford E. Perl 
 10. Certain Definitions. For purposes of this Agreement: 
 (a) “Accrued Advisory Fees” has the meaning set forth in Section 4; 
 (b) “Advisor” has the meaning set forth in the preamble; 
 (c) “Advisor Group” has the meaning set forth in Section 6; 
 (d)
“Advisory Fee” and “Advisory Fees” have the meaning set forth in Section 4; 
 (e)
“Advisory Services” has the meaning set forth in Section 4; 
 (f) “Affiliate” of any
particular Person means any other Person controlling, controlled by or under common control with such particular Person, where “control” means the possession, directly or indirectly, of the power to direct the management and policies of a
Person whether through the ownership of voting securities, contract, or otherwise; 
  

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 (g) “Agreement” has the meaning set forth in the preamble; 
 (h) “Beneficiary Affiliate” and “Beneficiary Affiliates” have the meanings set forth in the preamble; 
 (i) “Business Day” means any day from Monday to Friday (inclusive) other than public bank holidays during normal working hours in New
York, New York, United States of America, London, England or Frankfurt, Germany; 
 (j) “Claims” has the meaning set forth
in Section 7; 
 (k) “Company” has the meaning set forth in the preamble; 
 (l) “Control” shall mean in respect of a Person, the power directly or indirectly to manage or govern such Person, or to appoint the
managing and governing bodies of such Person, or a majority of the members thereof if they decide collectively, whether through the ownership of voting securities, by contract or otherwise (in such respect, a limited partnership shall be deemed to
be Controlled by its general partner); 
 (m) “Credit Agreements” means, collectively, those senior and/or mezzanine credit
finance agreements (and related intercreditor agreements) entered into by certain members of the Sirona Group on 29 April 2005, as amended and restated, and as the same may be amended or novated or refinanced from time to time; 
 (n) “Effective Date” has the meaning set forth in the preamble; 
 (o) “LCIA” has the meaning set forth in Section 19; 
 (p) “Loss” has the meaning set forth in Section 6; 
 (q) “Person” means an individual, a partnership, a corporation, a limited liability company, an association, a joint stock company, a
trust, a joint venture, an unincorporated organization and a governmental entity or any department, agency or political subdivision thereof. 
 (r) “Rules” has the meaning set forth in Section 19; 
 (s) “Sirona Group” means the
Company and its Subsidiaries from time to time; 
 (t) “Subsidiary” or “Subsidiaries” means, with respect
to any Person, any or all other Person(s) of which a majority of the total voting power of shares or other equity interests entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees
thereof is at the time owned or Controlled, directly or indirectly, by such Person or one or more of its other Subsidiaries or a combination thereof. For purposes 

  

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hereof, a Person or Persons shall be deemed to have a majority ownership interest in a limited liability company, partnership, association or other business
entity if such Person or Persons shall be allocated a majority of limited liability company, partnership, association or other business entity gains or losses or Control such entity; 
 (u) “Term” has the meaning set forth in Section 2; and 
 (v) “VAT” means any value added, sales, turnover, consumption or similar tax of any jurisdiction. 
 11. Accuracy of Information. The Company shall furnish to the Advisor (or the relevant member of the Advisor Group) such information as the
Company believes reasonably appropriate to their advisory and consulting services hereunder (all such information so furnished, the “Information”). The Advisor recognizes and confirms that any such Person (a) will use and rely
primarily on the Information and on information available from generally recognized public sources in performing the Advisory Services contemplated by this Agreement without having independently verified the same, (b) does not assume
responsibility for the accuracy or completeness of the Information and such other information and (c) is entitled to rely upon the Information without independent verification. 
 12. Assignment. No party may assign any obligations hereunder to any other entity without the prior written consent of the other parties (which
consent shall not be unreasonably withheld); provided that the Advisor may, without the consent of the Company, assign any of its rights and obligations under this Agreement to any of its Affiliates or to any of its affiliated investment
funds, whereupon, in each case, the assignor nevertheless shall remain liable for the performance of its obligations hereunder. 
 13.
Amendment and Waiver. Except as otherwise provided herein, no modification, amendment, or waiver of any provision of this Agreement shall be effective against any party hereto unless such modification, amendment, or waiver has been approved
in writing by such party. No course of dealing or the failure of any party to enforce any of the provisions of this Agreement shall in any way operate as a waiver of such provisions and shall not affect the right of such party thereafter to enforce
each and every provision of this Agreement in accordance with its terms. 
 14. Successors. This Agreement and all the obligations and
benefits hereunder shall bind and inure to the benefit of and be enforceable by the parties hereto and the respective successors and assigns of each of them. 
 15. Counterparts. This Agreement may be executed in multiple counterparts, each of which shall be an original and all of which taken together shall constitute one and the same agreement. 
 16. Remedies. Any person having rights under any provision of this Agreement shall be entitled to enforce their rights under this Agreement
specifically, to recover damages by reason of any breach of any provision of this Agreement and to exercise all other rights existing in their favor. 
  

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 17. Entire Agreement. Except as otherwise expressly set forth herein, this Agreement embodies the
complete agreement and understanding among the parties hereto with respect to the subject matter hereof and supersedes and preempts any prior understandings, agreements or representations by or among the parties, written or oral, which may have
related to the subject matter hereof in any way. 
 18. Governing Law. All issues concerning this Agreement shall be governed by and
construed in accordance with the laws of the Grand Duchy of Luxembourg, without giving effect to any choice of law or conflict of law provision or rule (whether of Luxembourg or any other jurisdiction) that would cause the application of the law of
any jurisdiction other than Luxembourg. 
 19. Dispute Resolution. Any controversy or claim arising out of or relating to this
Agreement, including any question regarding its existence, validity or termination, shall be referred to and finally resolved by arbitration in accordance with the Rules (the “Rules”) of the LCIA International Arbitration
(“LCIA”), which Rules are deemed to be incorporated by reference into this clause, except as expressly modified by this Section 19. 
  

	 	(a)	There shall be one (1) arbitrator. The selection of the arbitrator shall be by agreement between the parties. If, however, the parties are unable to agree on the selection of
the arbitrator within thirty (30) days after the commencement of the arbitration, then the selection of the arbitrator shall be made by the LCIA. 

  

	 	(b)	The place of the arbitration shall be London, England. 

  

	 	(c)	The language of the arbitration shall be English. 

  

	 	(d)	The arbitrator shall have the authority to award all forms of relief determined to be just and equitable; provided that the arbitrator shall have no authority to award
punitive or exemplary damages, or any other monetary damages not measured by the prevailing party’s actual damages. 

  

	 	(e)	Any arbitral award rendered pursuant to this provision shall be final and binding on the parties and may be enforced in any court of competent jurisdiction.

 Before an arbitration pursuant to this provision has been convened, any party may seek from any court of competent jurisdiction interim or
provisional relief. Such interim or provisional relief may subsequently be vacated, continued or modified by the arbitrator on the application of any party. 
 20. Business Days. If any time period for giving notice or taking action hereunder expires on a day other than a Business Day, the time period shall automatically be extended to the Business Day immediately
following such day. 
 21. Descriptive Headings. The descriptive headings of this Agreement are inserted for convenience only and do
not constitute a part of this Agreement. 
  

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 22. No Strict Construction. The language used in this Agreement shall be deemed to be the language
chosen by the parties hereto to express their mutual intent, and no rule of strict construction shall be applied against any party. 
 *     *     *     *     * 
  

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 IN WITNESS WHEREOF, the parties hereto have executed this Advisory Services Agreement as of the date
first written above. 
  

			
	SIRONA HOLDINGS LUXCO S.C.A.
		
	By:	 	 /s/ Nicholas W. Alexos

		 	“A” Director
		
	By:	 	 /s/ Catherine Koch

		 	“B” Director

  

			
	BLITZ F04-506 GMBH
		
	By:	 	 /s/ Jost Fischer /s/ Simone Blank

 EXHIBIT B 
 ASSIGNMENT AND ASSUMPTION AGREEMENT 
 THIS ASSIGNMENT AND ASSUMPTION AGREEMENT (this
“Agreement”) is made as of May 4, 2009, by and among Sirona Holdings Luxco S.C.A., a société en commandite par actions organized under the laws of the Grand Duchy of Luxembourg (“Advisor”),
Sirona Dental Systems, Inc., a Delaware corporation (“Sirona Inc.”) and Sirona Dental Services GmbH, a corporation organized under the laws of Germany (“Sirona GmbH”). Terms used herein and not otherwise defined
shall have the meanings given to them in the Services Agreement (as defined below). 
 RECITALS: 
 WHEREAS, Sirona GmbH and Advisor are parties to that certain Advisory Services Agreement (as amended and modified, the “Services Agreement”), dated as
of October 1, 2005, by which Advisor provides Sirona GmbH certain services on the terms and conditions set forth in the Services Agreement; 
 WHEREAS,
Sirona GmbH and Advisor renewed the Services Agreement for a term of one year beginning as of October 1, 2008; 
 WHEREAS, Sirona GmbH desires to assign
all of its right, title and interest in and to the Services Agreement to Sirona Inc. and Sirona Inc. desires to accept the same from Sirona GmbH; and 
 WHEREAS, Advisor desires to continue to provide to Sirona Inc. those services provided to Sirona GmbH under the Services Agreement on the terms and conditions set forth therein. 
 NOW THEREFORE, in consideration of the mutual covenants and promises set forth in this Agreement and other good and valuable consideration, the receipt, sufficiency and adequacy of which are hereby expressly
acknowledged, the parties hereto agree as follows: 
 1. Assignment and Assumption. Sirona GmbH hereby assigns, transfers, conveys and
delivers unto Sirona Inc. all of its right, title and interest in and to the Services Agreement and Sirona Inc. hereby accepts the aforesaid assignment and assumes all of Sirona GmbH’s obligations and liabilities under the Services Agreement.
Advisor hereby agrees to such assignment and assumption. From and after the date hereof, the Services Agreement shall be solely between Sirona Inc. and Advisor and Sirona GmbH shall not have any rights or obligations under the Services Agreement and
shall no longer be a party thereto. 

 2. Amendment; Full Force and Effect. The parties hereto agree that the Services Agreement is
amended such that the term the “Company” shall mean Sirona Inc. and its permitted successors and assigns. The Services Agreement, as modified by this Agreement, remains in full force and effect. 
 3. Miscellaneous. 
 (a) Binding
Agreement; Assignment. This Agreement and all of the provisions hereof shall be binding upon and inure to the benefit of the parties hereto and their respective successors and permitted assigns. 
 (b) Severability. Whenever possible, each provision of this Agreement shall be interpreted in such manner as to be effective and valid under
applicable law, but if any provision of this Agreement is held to be prohibited by or invalid under applicable law, such provision shall be ineffective only to the extent of such prohibition or invalidity, without invalidating the remainder of such
provisions or the remaining provisions of this Agreement. 
 (c) Construction. The language used in this Agreement shall be deemed to
be the language chosen by the parties to express their mutual intent, and no rule of strict construction shall be applied against any Person. Any reference to any federal, state, local or foreign statute or law shall be deemed also to refer to all
rules and regulations promulgated thereunder, unless the context otherwise requires. The word “including” shall mean “including without limitation”. 
 (d) Captions. The captions used in this Agreement are for convenience of reference only and do not constitute a part of this Agreement and shall not be deemed to limit, characterize or in any way affect any
provision of this Agreement, and all provisions of this Agreement shall be enforced and construed as if no caption had been used in this Agreement. 
 (e) Entire Agreement. This Agreement, together with the Services Agreement as amended and modified hereby contain the entire agreement between the parties and supersedes any prior understandings, agreements or representations by or
between the parties, written or oral, which may have related to the subject matter hereof in any way. In the event any conflict between the terms and provisions of this Agreement and the terms and provisions of the Services Agreement, the terms and
provisions of this Agreement shall govern. 
 (f) Counterparts. This Agreement may be executed in multiple counterparts, each of which
shall be deemed an original but all of which taken together shall constitute one and the same instrument. 
 (g) Governing Law. All
questions concerning the construction, validity and interpretation of this Agreement shall be governed by and construed in accordance with the domestic laws of the State of Delaware, without giving effect to any choice of law or conflict of law
provision (whether of the State of Delaware or any other jurisdiction) that would cause the application of the laws of any jurisdiction other than the State of Delaware. 
 (h) Delivery by Facsimile. This Agreement, and any amendments hereto, to the extent signed and delivered by means of a facsimile machine, shall be treated in all manner 

  

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and respects as an original agreement and shall be considered to have the same binding legal effects as if it were the original signed version thereof
delivered in person. At the request of any party hereto, each other party hereto shall re-execute original forms thereof and deliver them to all other parties. No party hereto shall raise the use of a facsimile machine to deliver a signature or the
fact that any signature was transmitted or communicated through the use of a facsimile machine as a defense to the formation of an agreement and each such party forever waives any such defense. 
 [Signature page follows] 
  

 - 15 - 

 IN WITNESS WHEREOF, the parties hereto have caused this Assignment and Assumption Agreement to be duly
and properly executed as of the date and year first above written. 
  

			
	SIRONA HOLDINGS LUXCO S.C.A.
	BY SIRONA HOLDINGS S.A. ITS SOLE MANAGER
		
	By:	 	 /s/ Nicholas W. Alexos

	Name:	 	Nicholas W. Alexos
	Its:	 	“A” Director
		
	By:	 	 /s/ Michel E. Raffoul

	Name:	 	Michel E. Raffoul
	Its:	 	“B” Director
	
	SIRONA DENTAL SYSTEMS, INC.
		
	By:	 	 /s/ Jonathan Friedman

	Name:	 	Jonathan Friedman
	Its:	 	General Counsel and Secretary
	
	SIRONA DENTAL SERVICES GMBH
		
	By:	 	 /s/ Tom Redlich

	Name:	 	Tom Redlich
	Its:	 	General Counsel Europe / Asia Pacific

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