Document:

Second Amendment to Credit Agreement, dated as of April 1, 2011

 Exhibit 10.1 
 SECOND AMENDMENT TO CREDIT AGREEMENT 
 THIS SECOND AMENDMENT TO
CREDIT AGREEMENT (this “Amendment”), dated as of April 1, 2011, is entered into by and among INFUSYSTEM HOLDINGS, INC., a Delaware corporation (“Holdings”), INFUSYSTEM, INC., a California corporation
(“InfuSystem”) and FIRST BIOMEDICAL, INC., a Kansas corporation (“FBI” and together with Holdings and InfuSystem, the “Borrowers” and each individually a “Borrower”), BANK OF
AMERICA, N.A. in its capacity as an Administrative Agent and as a Lender (“Agent”) and the other lenders party hereto (collectively, together with the Agent in its capacity as a Lender, the “Lenders”). 

WHEREAS, the Borrowers and the Agent and the Lenders are parties to that certain Credit Agreement dated as of June 15, 2010
as amended by that certain First Amendment to Credit Agreement dated as of January 27, 2011 (the “Existing Credit Agreement” and as such Existing Credit Agreement is amended by this Amendment, the “Amended Credit
Agreement”); 
 WHEREAS, Holdings has notified Agent that on February 16, 2011, it formed IFC LLC, a
Delaware limited liability company and wholly owned Subsidiary of Holdings (the “New Subsidiary”); 

WHEREAS, pursuant to Section 6.13 of the Existing Credit Agreement, the Borrowers are required to execute and deliver, and/or
cause any Subsidiary that is formed by any Borrower, to execute and deliver, as applicable, (a) a Guaranty pursuant to which such Subsidiary guarantees the Obligations of the Borrowers, (b) a pledge agreement pursuant to which all of the
Equity Interests of such Subsidiary are pledged as Collateral for the Obligations and (c) such other related stock certificates, stock powers, financing statements, opinions of counsel and other documents as the Agent may reasonably request,
all in form and substance reasonably satisfactory to the Agent; 
 WHEREAS, the Borrowers desire to comply with and
otherwise cause the New Subsidiary to deliver those agreements which may be required to be delivered by it pursuant to Section 6.13 of the Existing Credit Agreement and have otherwise requested that the Agent and the Lenders modify the Existing
Credit Agreement in certain respects; and 
 WHEREAS, the Agent and Lenders have agreed to amend the terms of the
Existing Credit Agreement on the terms and conditions set forth in this Amendment. 
 NOW, THEREFORE, in consideration of
the premises and mutual agreements herein contained, the parties hereto agree as follows. 

 SECTION 1 
 DEFINED TERMS 
 Capitalized terms used but not defined herein shall
have the meanings ascribed to such terms in the Existing Credit Agreement. 
 SECTION 2 

AMENDMENTS TO EXISTING CREDIT AGREEMENT 
 2.1 Additional Defined Term. Section 1.01 of the Existing Credit Agreement is hereby amended by adding the following defined term in proper alphabetical order: 

“IFC” means IFC LLC, a Delaware limited liability company and wholly owned Subsidiary of Holdings.

 2.2 Amendment to Capital Expenditure Limitation. Section 6.12(c) of the Existing Credit Agreement is
hereby amended by deleting the Section in its entirety and substituting the following therefor: 
 “(c)
Capital Expenditures. Not spend or incur obligations (including the total amount of any Capital Leases) to acquire fixed assets for more than the following amounts during the following times: 

 

					
	 Fiscal Year
	  	Maximum
Capital
Expenditures	 
	 Fiscal Year 2010
	  	$	6,700,000	  
	 Fiscal Year 2011
	  	$	10,500,000	  
	 Fiscal Year 2012
	  	$	8,100,000	  
	 Fiscal Year 2013 and each Fiscal Year thereafter
	  	$	8,800,000	  

 provided, however,
that Capital Expenditures during any Fiscal Year (other than 2011) shall not exceed fifty percent (50%) of the Consolidated EBITDA of Holdings and its Subsidiaries for such Fiscal Year (tested at the time of delivery of the annual financial
statements for such Fiscal Year pursuant to Section 6.01). Other than with respect to Fiscal Year 2010 (for which no Carry-Over Amount (as defined below) shall be permitted), if for any Fiscal Year the Capital Expenditures are less than the
applicable annual limit (the amount by which the Capital Expenditures in such year are less than such limit, the “Carry-Over Amount”), the limitation shall be increased for the Fiscal Year immediately following the Fiscal Year in
which such Carry-Over Amount arose (but not subsequent calendar years) by an amount equal to 50% of such Carry-Over Amount; provided, however, that the Carry-Over Amount shall be deemed to be the last dollars spent on Capital Expenditures in any
Fiscal Year and any Carry-Over Amount may not be carried over for more than one Fiscal Year.” 

  
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 Section 2.3 Amendment to Capital Lease Indebtedness Limitation.
Subsection (f) of Section 7.03 is hereby amended by deleting the subsection in its entirety and substituting the following therefor: 
 “(f) Indebtedness in respect of Capital Leases, Synthetic Lease Obligations and purchase money obligations for fixed or capital assets within the limitations set forth in Section 7.01(i);
provided, however, that: (1) the aggregate amount of all such Indebtedness attributable to the Borrowers and their Subsidiaries other than IFC (which shall include Indebtedness of the Borrowers and their Subsidiaries (other than
IFC) disclosed on Schedule 7.03 to the extent such amounts remain outstanding and constitute Capital Leases, Synthetic Lease Obligations or purchase money obligations for fixed or capital assets) at any one time outstanding shall not exceed
the following amounts during the following times: 
  

					
	 Fiscal Year
	  	Maximum
Aggregate
Amount	 
	 during Fiscal Year 2010
	  	$	4,000,000	  
	 during Fiscal Year 2011
	  	$	5,400,000	  
	 during Fiscal Year 2012
	  	$	6,800,000	  
	 During Fiscal Year 2013 and at all times thereafter
	  	$	8,000,000	  

 ; and (2) the
aggregate amount of all such Indebtedness attributable to IFC (which shall include Indebtedness of IFC disclosed on Schedule 7.03 to the extent such amounts remain outstanding and constitute Capital Leases, Synthetic Lease Obligations or
purchase money obligations for fixed or capital assets) at any one time outstanding shall not exceed $3,000,000 at any time during the term of this Agreement.” 
 SECTION 3 
 REPRESENTATIONS AND WARRANTIES 

Each Borrower hereby represents and warrants to the Agent and Lenders that: 

3.1 Due Authorization, etc. The execution and delivery by it of this Amendment and the performance by it of its obligations
under the Existing Credit Agreement are duly authorized by all necessary corporate action, do not require any filing or registration with or approval or consent of any governmental agency or authority, do not and will not conflict with, result in
any violation of or constitute any default under any provision of its certificate or articles of incorporation, as applicable, or by-laws or those of any of its Subsidiaries or any material agreement or other document binding upon or applicable to
it or any of its Subsidiaries (or any of their respective properties) or any material law or governmental regulation or court decree or order applicable to it or any of its Subsidiaries, and will not result in or require the creation or imposition
of any Lien in any of its properties or the properties of any of its Subsidiaries pursuant to the provisions of any agreement binding upon or applicable to it or any of its Subsidiaries. 

  
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 3.2 Validity. This Amendment has been duly executed and delivered by such
Borrower and, together with the Existing Credit Agreement, are the legal, valid and binding obligations of such Borrower, enforceable against such Borrower in accordance with their respective terms subject, as to enforcement only, to bankruptcy,
insolvency, reorganization, moratorium or similar laws affecting the enforceability of the rights of creditors generally. 

3.3 Representations and Warranties. The representations and warranties contained in Article V of the Existing Credit
Agreement are true and correct on the date of this Amendment in all material respects (except for those that are qualified by “materiality” or “Material Adverse Effect”, in which case such representations and warranties shall
have been true and correct in all respects), except to the extent (a) that such representations and warranties solely relate to an earlier date or (b) have been changed by circumstances permitted by the Existing Credit Agreement.

 SECTION 4 
 CONDITIONS PRECEDENT 
 The amendments to the Existing Credit
Agreement set forth in Section 2 of this Amendment shall become effective upon satisfaction of all of the following conditions precedent: 
 4.1 Receipt of Documents. Agent shall have received all of the following, each in form and substance satisfactory to Agent (collectively, the “Consent, Amendment and Joinder
Documents”): 
 (a) Amendment. A counterpart original of this Amendment duly executed by Borrowers. 

(b) Subsidiary Guaranty. A Subsidiary Guaranty duly executed by the New Subsidiary, substantially in the form of Exhibit A hereto.

 (c) Joinder to Security Agreement. A Joinder to Security Agreement duly executed by the New Subsidiary substantially in the
form of Exhibit B hereto. 

  
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 (d) Pledge Agreement. (i) A Joinder to Pledge Agreement executed by the New Subsidiary
substantially in the form of Exhibit C hereto and (ii) a Pledge Amendment executed by Holdings pledging all of the issued and outstanding Equity Interests of the New Subsidiary to the Agent, the form of which is attached as Schedule II to the
Pledge Agreement. 
 (e) Manager’s Certificate. A Manager’s Certificate for the New Subsidiary, in the form attached
hereto as Exhibit D and containing copies of (i) Organization Documents of the New Subsidiary; (ii) resolutions of the sole manager of the New Subsidiary approving and authorizing its execution, delivery and performance of the Consent,
Amendment and Joinder Documents to which it is party and the transactions contemplated thereby; each of which the New Subsidiary hereby certifies to be true and complete, and in full force and effect without modification, it being understood that
the Agent and each Lender may conclusively rely on each such document and certificate until formally advised by the Borrowers of any changes therein; and (iii) a good standing certificate in the state of incorporation of New Subsidiary, and in
each other state in which the New Subsidiary is required to be qualified to transact its business as of the date hereof. 
 (f)
Insurance. Evidence satisfactory to the Agent of the existence of insurance required to be maintained pursuant to Section 6.07 of the Amended Credit Agreement, together with evidence that the Agent has been named as a lender’s loss payee
and as an additional insured, as applicable, on all such insurance policies. 
 4.2 Other Conditions. No Event of
Default or Default shall have occurred and be continuing. 
 SECTION 5 

MISCELLANEOUS 
 5.1 Warranties and Absence of Defaults. In order to induce the Agent and Lenders to enter into this Amendment, Borrowers hereby warrant to the Agent and each Lender, as of the date of the
actual execution of this Amendment (a) no Event of Default or Default has occurred which is continuing as of such date and (b) the representations and warranties in Section 3 of this Amendment are true and correct. 

5.2 Documents Remain in Effect. Except as amended and modified by this Amendment, the Existing Credit Agreement and the
other documents executed pursuant to the Existing Credit Agreement remain in full force and effect and each Borrower hereby ratifies, adopts and confirms its representations, warranties, agreements and covenants contained in, and obligations and
liabilities under, the Existing Credit Agreement and the other documents executed pursuant to the Existing Credit Agreement. 

5.3 Reference to Loan Agreement. On and after the effective date of this Amendment, each reference in the Existing Credit
Agreement to “this Agreement,” “hereunder,” “hereof,” “herein” or words of like import, and each reference to the “Loan Agreement” in any Loan Documents, or other agreements, documents or other
instruments executed and delivered pursuant to the Existing Credit Agreement, shall mean and be a reference to the Amended Credit Agreement. 

  
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 5.4 Headings. Headings used in this Amendment are for convenience of reference
only, and shall not affect the construction of this Amendment. 
 5.5 Counterparts. This Amendment may be executed
in any number of counterparts, and by the parties hereto on the same or separate counterparts, and each such counterpart, when executed and delivered, shall be deemed to be an original, but all such counterparts shall together constitute but one and
the same Amendment. 
 5.6 Expenses. Borrowers agree, jointly and severally, to pay on demand all reasonable
out-of-pocket costs and expenses of Agent (including reasonable fees, charges and disbursements of Agent’s attorneys) in connection with the preparation, negotiation, execution, delivery and administration of this Amendment and all other
instruments or documents provided for herein or delivered or to be delivered hereunder or in connection herewith. In addition, Borrowers agree, jointly and severally, to pay, and save Agent and each Lender harmless from all liability for, any stamp
or other taxes which may be payable in connection with the execution or delivery of this Amendment, the borrowings under the Amended Credit Agreement, and the execution and delivery of any instruments or documents provided for herein or delivered or
to be delivered hereunder or in connection herewith, in each case to the same extent required under the Credit Agreement. All obligations provided in this Section 6.6 shall survive any termination of this Amendment or the Amended Credit
Agreement. 
 5.7 Governing Law. This Amendment shall be a contract made under and governed by the internal laws
of the State of Illinois. Wherever possible, each provision of this Amendment shall be interpreted in such manner as to be effective and valid under applicable laws, but if any provision of this Amendment shall be prohibited by or invalid under such
laws, such provisions shall be ineffective only to the extent of such prohibition or invalidity, without invalidating the remainder of such provision or the remaining provisions of this Amendment. 

5.8 Successors. This Amendment shall be binding upon Borrowers, Agent, each Lender and their respective successors and
assigns, and shall inure to the benefit of Borrowers, Agent, each Lender and the successors and assigns of the Agent and such Lender. 
 [signature page attached] 

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

									
	BORROWERS:
			
	INFUSYSTEM HOLDINGS, INC.	 		 	FIRST BIOMEDICAL, INC.
					
	By:	 	 /s/ James Froisland
	 		 	By:	 	 /s/ James Froisland

	Name:	 	James Froisland	 		 	Name:	 	James Froisland
	Title:	 	CFO	 		 	Title:	 	CFO
				
	INFUSYSTEM, INC.	 		 		 	
					
	By:	 	 /s/ James Froisland
	 		 		 	
	Name:	 	James Froisland	 		 		 	
	Title:	 	CFO	 		 		 	
				
	AGENTS AND LENDERS: 	 		 		 	
				
	BANK OF AMERICA, N.A., in its capacity as Administrative Agent, 	 		 		 	
					
	By:	 	 /s/ Rosanne Parsill
	 		 		 	
	Name:	 	Rosanne Parsill	 		 		 	
	Title:	 	Vice President	 		 		 	
				
	BANK OF AMERICA, N.A., in its capacity as a Lender 	 		 		 	
					
	By:	 	 /s/ Sophia Love
	 		 		 	
	Name:	 	Sophia Love	 		 		 	
	Title:	 	Senior Vice President	 		 		 	
				
	KEYBANK NATIONAL ASSOCIATION, in its capacity as a Lender	 		 		 	
					
	By:	 	 Thomas A. Crandell
	 		 		 	
	Name:	 	Thomas A. Crandell	 		 		 	
	Title:	 	Senior Vice President	 		 		 	

 Second Amendment to Credit Agreement 

 Exhibit A 

SUBSIDIARY GUARANTY 
 This SUBSIDIARY GUARANTY (this “Guaranty”), dated as of April 1, 2011 by and among the Guarantors identified as such on the signature page hereof or in any joinders to this
Guaranty at any time following the date of this Guaranty (each, a “Guarantor” and collectively, “Guarantors”), and BANK OF AMERICA, N.A. as the administrative agent (in such capacity, the “Administrative
Agent”) for itself and the Lenders. 
 WITNESSETH: 

WHEREAS, INFUSYSTEM HOLDINGS, INC., a Delaware corporation (“Holdings”), INFUSYSTEM, INC., a California
corporation (“InfuSystem”) and FIRST BIOMEDICAL, INC., a Kansas corporation (“FBI” and together with Holdings and InfuSystem, the “Borrowers” and each individually a “Borrower”),
the Persons signatory thereto from time to time as the Lenders, and the Administrative Agent are parties to that certain Credit Agreement dated as of June 15, 2010 as amended by (i) that certain First Amendment to Credit Agreement dated as
of January 27, 2011 and (ii) that certain Second Amendment to Credit Agreement dated as of the date hereof (as so amended, and as the same is further amended, restated, supplemented or otherwise modified from time to time, the
“Credit Agreement”), pursuant to which the Lenders have made, and continue to make available Loans, Letters of Credit and other financial accommodations for the benefit of the Borrowers; 

WHEREAS, the Borrowers and each Guarantor are engaged in related businesses and/or are contractually obligated to one another via
customer/supplier relationships and otherwise integrated to such an extent that the financial strength and flexibility of each Borrower and Guarantor has a direct impact on the success of each other Borrower and Guarantor; 

WHEREAS, each Guarantor will derive substantial direct and indirect benefit from the extensions of credit under the Credit
Agreement; and 
 WHEREAS, pursuant to Section 6.13 of the Credit Agreement and as a condition to the agreement of
the Administrative Agent and each Lender to continue to make available financial accommodations to the Borrowers under the Credit Agreement, each Guarantor is required to guarantee payment of the Obligations. 

 NOW, THEREFORE, in consideration of the premises and the covenants hereinafter
contained, and to induce the Lenders to provide the Loans and other financial accommodations under the Credit Agreement, it is agreed as follows: 
 AGREEMENT: 
  

	1.	DEFINITIONS. 

 (a)
Capitalized terms used herein shall have the meanings assigned to them in the Credit Agreement, unless otherwise defined herein. 
 (b) References to this “Guaranty” shall mean this Guaranty, including all amendments, modifications and supplements and any annexes, exhibits and schedules to any of the foregoing, and
shall refer to this Guaranty as the same may be in effect at the time such reference becomes operative. 
 (c) References to the
“Termination Date” shall mean the date on which (a) the payment in full in cash and performance of all Obligations, (b) the termination of all Commitments and (c) either (i) the cancellation and return to the
Administrative Agent of all Letters of Credit or (ii) the Cash Collateralization of all Letters of Credit in accordance with the Credit Agreement 
  

	2.	THE GUARANTY. 

 2.1
Guaranty of Guaranteed Obligations of the Borrowers. Each Guarantor hereby jointly and severally unconditionally guarantees to the Administrative Agent and the Lenders, and their respective successors, endorsees, transferees and assigns, the
prompt payment (whether at stated maturity, by acceleration or otherwise) and performance of the Obligations of the Borrowers (hereinafter the “Guaranteed Obligations”). The Guarantors agree that this Guaranty is a guaranty of
payment and performance and not of collection, and that their obligations under this Guaranty shall be primary, absolute and unconditional, irrespective of, and unaffected by: 
 (a) the genuineness, validity, regularity, enforceability or any future amendment of, or change in this Guaranty, any other Loan Document or any other agreement, document or instrument to which any
Borrower and/or any Guarantors are or may become a party; 
 (b) the absence of any action to enforce this Guaranty or any other
Loan Document or the waiver or consent by the Administrative Agent and/or the Lenders with respect to any of the provisions thereof; 
 (c) the existence, value or condition of, or failure to perfect its Lien against, any Collateral for the Guaranteed Obligations or any action, or the absence of any action, by the Administrative Agent in
respect thereof (including, without limitation, the release of any such security); 
 (d) the insolvency of any Borrower or any
other Guarantor; or 
 (e) any other action or circumstances which might otherwise constitute a legal or equitable discharge or
defense of a surety or guarantor, other than payment in full of the Guaranteed Obligations, it being agreed by each Guarantor that its obligations under this Guaranty shall not be discharged (subject, however, to any reinstatement provisions
contained herein) until the Termination Date. Each Guarantor shall be regarded, and shall be in the same position, as principal debtor with respect to the Guaranteed Obligations. Each Guarantor agrees that any notice or directive given at any time
to the Administrative Agent which is inconsistent with the waiver in the immediately preceding sentence shall be null and void and may be ignored by the Administrative Agent and the Lenders, and, in addition, may not be pleaded or introduced as
evidence in any litigation relating to this Guaranty for the reason that such pleading or introduction would be at variance with the written terms of this Guaranty, unless the Administrative Agent and the Lenders have specifically agreed otherwise
in writing. It is agreed among each Guarantor, the Administrative Agent and the Lenders that the foregoing waivers are of the essence of the transaction contemplated by the Loan Documents and that, but for this Guaranty and such waivers,
Administrative Agent and the Lenders would decline to continue to perform the transactions contemplated by the Credit Agreement. 

  
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 2.2 Demand by the Administrative Agent or the Lenders. In addition to the terms of
the Guaranty set forth in Section 2.1 hereof, and in no manner imposing any limitation on such terms, it is expressly understood and agreed that, if, at any time, the outstanding principal amount of the Guaranteed Obligations under the
Credit Agreement (including all accrued interest thereon) is declared to be immediately due and payable, then the Guarantors shall, without demand, pay to the holders of the Guaranteed Obligations the entire outstanding Guaranteed Obligations due
and owing to such holders. Payment by the Guarantors shall be made to the Administrative Agent in immediately available Federal funds to an account designated by the Administrative Agent or at the address set forth herein for the giving of notice to
the Administrative Agent or at any other address that may be specified in writing from time to time by the Administrative Agent, and shall be credited and applied to the Guaranteed Obligations. 

2.3 Enforcement of Guaranty. In no event shall the Administrative Agent have any obligation (although it is entitled, at its
option) to proceed against any Borrower or any Collateral pledged to secure Guaranteed Obligations before seeking satisfaction from any or all of the Guarantors, and the Administrative Agent may proceed, prior or subsequent to, or simultaneously
with, the enforcement of the Administrative Agent’s rights hereunder, to exercise any right or remedy which it may have against any Collateral, as a result of any Lien it may have as security for all or any portion of the Guaranteed
Obligations. 
 2.4 Waiver. In addition to the waivers contained in Section 2.1 hereof, the Guarantors waive,
and agree that they shall not at any time insist upon, plead or in any manner whatever claim or take the benefit or advantage of, any appraisal, valuation, stay, extension, marshaling of assets or redemption laws, or exemption, whether now or at any
time hereafter in force, which may delay, prevent or otherwise affect the performance by the Guarantors of their Guaranteed Obligations under, or the enforcement by the Administrative Agent or the Lenders of, this Guaranty. The Guarantors hereby
waive diligence, presentment and demand (whether for non-payment or protest or of acceptance, maturity, extension of time, change in nature or form of the Guaranteed Obligations, acceptance of further security, release of further security,
composition or agreement arrived at as to the amount of, or the terms of, the Guaranteed Obligations, notice of adverse change in any Borrower’s financial condition or any other fact which might increase the risk to the Guarantors) with respect
to any of the Guaranteed Obligations or all other demands whatsoever and waive the benefit of all provisions of law which are or might be in conflict with the terms of this Guaranty. The Guarantors represent, warrant and jointly and severally agree
that, as of the date of this Guaranty, their obligations under this Guaranty are not subject to any counterclaims, offsets or defenses of any kind against the Administrative Agent or the Lenders. The Guarantors further jointly and severally agree
that their obligations under this Guaranty shall not be subject to any counterclaims, offsets or defenses against the Administrative Agent or any Lender of any kind which may arise in the future, other than payment in full of the Guaranteed
Obligations. 

  
 3 

 2.5 Benefit of Guaranty. The provisions of this Guaranty are for the benefit of the
Administrative Agent and the Lenders and their respective successors, transferees, endorsees and assigns, and nothing herein contained shall impair, as between any Borrower and the Administrative Agent or the Lenders, the obligations of such
Borrower under the Loan Documents. In the event all or any part of the Guaranteed Obligations are transferred, indorsed or assigned by the Administrative Agent or any Lender to any Person or Persons, any reference to the “Administrative
Agent” or the “Lender” herein shall be deemed to refer equally to such Person or Persons. 
 2.6 Modification
of Guaranteed Obligations, Etc. Each Guarantor hereby acknowledges and agrees that the Administrative Agent and the Lenders may at any time or from time to time, with or without the consent of, or notice to, the Guarantors or any of them: change
or extend the manner, place or terms of payment of, or renew or alter all or any portion of, the Guaranteed Obligations; 

  
 4 

 (a) in accordance with Section 10.03 of the Credit Agreement, take any action under or
in respect of the Loan Documents in the exercise of any remedy, power or privilege contained therein or available to it at law, equity or otherwise, or waive or refrain from exercising any such remedies, powers or privileges; 

(b) in accordance with Section 10.01 of the Credit Agreement, amend or modify, in any manner whatsoever, the Loan Documents;

 (c) extend or waive the time for the Borrowers’ performance of, or compliance with, any term, covenant or agreement on
its part to be performed or observed under the Loan Documents, or waive such performance or compliance or consent to a failure of, or departure from, such performance or compliance; 

(d) subject to the terms of the Security Agreement, take and hold Collateral for the payment of the Guaranteed Obligations guaranteed
hereby or sell, exchange, release, dispose of, or otherwise deal with, any property pledged, mortgaged or conveyed, or in which the Administrative Agent or the Lenders have been granted a Lien, to secure any Obligations; 

(e) release anyone who may be liable in any manner for the payment of any amounts owed by the Guarantors or the Borrowers to the
Administrative Agent or any Lender; 
 (f) modify or terminate the terms of any intercreditor or subordination agreement, to the
extent permitted by the terms of such intercreditor or subordination agreement, pursuant to which claims of other creditors of any Guarantor or any Borrower are subordinated to the claims of the Administrative Agent and the Lenders; and/or

 (g) subject to the terms of the Credit Agreement, apply any sums by whomever paid or however realized to any amounts owing by
any Guarantor to the Administrative Agent or any Lender in such manner as the Administrative Agent or any Lender shall determine in its discretion; 
 and the Administrative Agent and the Lenders shall not incur any liability to the Guarantors as a result thereof, and no such action shall impair or release the Guaranteed Obligations of the Guarantors or
any of them under this Guaranty. 
 2.7 Reinstatement. This Guaranty shall remain in full force and effect and continue
to be effective should any petition be filed by or against any Borrower or any Guarantor for liquidation or reorganization, should such Borrower or Guarantor become insolvent or make an assignment for the benefit of creditors or should a receiver or
trustee be appointed for all or any significant part of such Borrower’s or such Guarantor’s assets, and shall continue to be effective or be reinstated, as the case may be, if at any time payment and performance of the Guaranteed
Obligations, or any part thereof, is, pursuant to applicable law, rescinded or reduced in amount, or must otherwise be restored or returned by the Administrative Agent or any Lender, whether as a “voidable preference”, “fraudulent
conveyance”, or otherwise, all as though such payment or performance had not been made. In the event that any payment, or any part thereof, is rescinded, reduced, restored or returned, the Guaranteed Obligations shall be reinstated and deemed
reduced only by such amount paid and not so rescinded, reduced, restored or returned. 

  
 5 

 2.8 Subordination of Subrogation, Etc. Notwithstanding anything to the contrary in
this Guaranty, or in any other Loan Document, each Guarantor hereby: expressly and irrevocably subordinates to the payment and performance in full of the Obligations, on behalf of itself and its successors and assigns (including any surety) until
the Termination Date, any and all rights at law or in equity to subrogation, reimbursement, exoneration, contribution, indemnification or set off and any and all defenses or other rights available to a surety, guarantor or accommodation co-obligor
against the principal; and acknowledges and agrees (i) that this subordination is intended to benefit the Administrative Agent and the Lenders and shall not limit or otherwise effect any Guarantor’s liability hereunder or the
enforceability of this Guaranty, and (ii) that the Administrative Agent, the Lenders and their respective successors and assigns are intended third party beneficiaries of the waivers and agreements set forth in this Section 2.8.

 2.9 Election of Remedies. If the Administrative Agent may, under applicable law, proceed to realize benefits under any
of the Loan Documents giving the Administrative Agent and the Lenders a Lien upon any Collateral owned by any Borrower, either by judicial foreclosure or by non-judicial sale or enforcement, the Administrative Agent may, at its sole option,
determine which of such remedies or rights it may pursue without affecting any of such rights and remedies under this Guaranty. If, in the exercise of any of its rights and remedies, the Administrative Agent shall forfeit any of its rights or
remedies, including its right to enter a deficiency judgment against any Borrower, whether because of any applicable laws pertaining to “election of remedies” or the like, the Guarantors hereby consent to such action by the Administrative
Agent and waive any claim based upon such action, even if such action by the Administrative Agent shall result in a full or partial loss of any rights of subrogation which the Guarantors might otherwise have had but for such action by the
Administrative Agent. Any election of remedies which results in the denial or impairment of the right of the Administrative Agent to seek a deficiency judgment against any Borrower shall not impair each Guarantor’s obligation to pay the full
amount of the Guaranteed Obligations. In the event the Administrative Agent shall bid at any foreclosure or trustee’s sale or at any private sale permitted by law or the Loan Documents, the Administrative Agent may bid all or less than the
amount of the Guaranteed Obligations and the amount of such bid need not be paid by the Administrative Agent but shall be credited against the Guaranteed Obligations. The amount of the successful bid at any such sale shall be conclusively deemed to
be the fair market value of the collateral and the difference between such bid amount and the remaining balance of the Guaranteed Obligations shall be conclusively deemed to be the amount of the Guaranteed Obligations guaranteed under this Guaranty,
notwithstanding that any present or future law or court decision or ruling may have the effect of reducing the amount of any deficiency claim to which the Administrative Agent and the Lenders might otherwise be entitled but for such bidding at any
such sale. 

  
 6 

	3.	REPRESENTATIONS AND WARRANTIES. 

 To induce the Lenders to continue make the Loans and incur L/C Obligations under the Credit Agreement, the Guarantors jointly and severally make the representations and warranties as to each Guarantor
contained in the Credit Agreement, each of which is incorporated herein by reference and all of which shall survive the execution and delivery of this Guaranty. 
  

	4.	FURTHER ASSURANCES. 

 Each
Guarantor agrees, upon the written request of the Administrative Agent or any Lender, to execute and deliver to the Administrative Agent or such Lender, from time to time, any additional instruments or documents reasonably considered necessary by
the Administrative Agent or such Lender to cause this Guaranty to be, become or remain valid and effective in accordance with its terms. 
  

	5.	PAYMENTS FREE AND CLEAR OF TAXES. 

 (a) Payments Free of Taxes; Obligation to Withhold; Payments on Account of Taxes. (i) Any and all payments by the Guarantors to or on account of any obligation of the Guarantors
hereunder or under any other Loan Document shall to the extent permitted by applicable Laws be made free and clear of and without reduction or withholding for any Taxes. If, however, applicable Laws require any Guarantor or Agent to withhold or
deduct any Tax, such Tax shall be withheld or deducted in accordance with such Laws as determined by the Guarantors or Agent, as the case may be, upon the basis of the information and documentation to be delivered pursuant to subsection
(e) below. 
 (ii) If the Guarantors or Agent shall be required by the Code to withhold or deduct any Taxes,
including both United States Federal backup withholding and withholding taxes, from any payment, then (A) Agent shall withhold or make such deductions as are determined by Agent to be required based upon the information and documentation it has
received pursuant to subsection (e) below, (B) Agent shall timely pay the full amount withheld or deducted to the relevant Governmental Authority in accordance with the Code, and (C) to the extent that the withholding or deduction is
made on account of Indemnified Taxes or Other Taxes, the sum payable by the Guarantors shall be increased as necessary so that after any required withholding or the making of all required deductions (including deductions applicable to additional
sums payable under this Section), Agent, Lender or L/C Issuer, as the case may be, receives an amount equal to the sum it would have received had no such withholding or deduction been made. 

(b) Payment of Other Taxes by Guarantors. Without limiting the provisions of subsection (a) above, the Guarantors
shall timely pay any Other Taxes to the relevant Governmental Authority in accordance with applicable Laws. 
 (c) Tax
Indemnifications. (i) Without limiting the provisions of subsection (a) or (b) above, the Guarantors shall, and do hereby, jointly and severally indemnify Agent, each Lender and the L/C Issuer, and shall make payment in
respect thereof within 10 days after written demand therefor, for the full amount of any Indemnified Taxes or Other Taxes (including Indemnified Taxes or Other Taxes imposed or asserted on or attributable to amounts payable under this Section)
withheld or deducted by the Guarantors or Agent or paid by Agent, such Lender or the L/C Issuer, as the case may be, and any penalties, interest and reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified Taxes
or Other Taxes were correctly or legally imposed or asserted by the relevant Governmental Authority. The Guarantors shall also, and do hereby, jointly and severally indemnify Agent, and shall make payment in respect thereof within 10 days
after written demand therefor, for any amount which a Lender or the L/C Issuer for any reason fails to pay indefeasibly to Agent as required by clause (ii) of this subsection. A certificate as to the amount of any such payment or liability
delivered to the Guarantors by a Lender or the L/C Issuer (with a copy to Agent), or by Agent on its own behalf or on behalf of a Lender or the L/C Issuer, shall be conclusive absent manifest error. 

  
 7 

 (ii) Without limiting the provisions of subsection (a) or
(b) above, each Lender and the L/C Issuer shall, and does hereby, indemnify the Guarantors and Agent, and shall make payment in respect thereof within 10 days after written demand therefor, against any and all (A) Excluded Taxes with
respect to such Lender or the L/C Issuer, (B) Taxes incurred by or asserted against the Guarantors or Agent by any Governmental Authority as a result of the failure by such Lender or the L/C Issuer, as the case may be, to deliver, or as a
result of the inaccuracy, inadequacy or deficiency of, any documentation required to be delivered by such Lender or the L/C Issuer, as the case may be, to the Guarantors or Agent pursuant to subsection (e), and (C) with respect to Excluded
Taxes or Taxes described in subclauses (A) or (B) of this sentence, any and all related losses, claims, liabilities, penalties, interest and expenses (including the fees, charges and disbursements of any counsel for the Guarantors or
Agent). Each Lender and the L/C Issuer hereby authorizes Agent to set off and apply any and all amounts at any time owing to such Lender or the L/C Issuer, as the case may be, under this Guaranty or any other Loan Document against any amount
due to Agent under this clause (ii). The agreements in this clause (ii) shall survive the resignation and/or replacement of Agent, any assignment of rights by, or the replacement of, a Lender or the L/C Issuer, the termination of the
Aggregate Commitments and the repayment, satisfaction or discharge of all other Obligations. 
 (d) Evidence of
Payments. Upon request by the Guarantors or Agent, as the case may be, after any payment of Taxes by the Guarantors or by Agent to a Governmental Authority as provided in this Section 5, the Guarantors shall deliver to Agent or
Agent shall deliver to Guarantors, as the case may be, the original or a certified copy of a receipt issued by such Governmental Authority evidencing such payment, a copy of any return required by Laws to report such payment or other evidence of
such payment reasonably satisfactory to the Guarantors or Agent, as the case may be. 
 (e) Status of
Lenders. (i) Each Lender shall deliver to the Guarantors and to Agent, at the time or times prescribed by applicable Laws or when reasonably requested by the Guarantors or Agent, such properly completed and executed documentation
prescribed by applicable Laws or by the taxing authorities of any jurisdiction and such other reasonably requested information as will permit the Guarantors or Agent, as the case may be, to determine (A) whether or not payments made hereunder
or under any other Loan Document are subject to Taxes, (B) if applicable, the required rate of withholding or deduction, and (C) such Lender’s entitlement to any available exemption from, or reduction of, applicable Taxes in respect
of all payments to be made to such Lender by the Guarantors pursuant to this Guaranty or any Loan Document or to otherwise to establish such Lender’s status for withholding tax purposes in the applicable jurisdiction. 

  
 8 

 (ii) Without limiting the generality of the foregoing, if a
Guarantor is resident for tax purposes in the United States, 
 (A) any Lender that is a “United
States person” within the meaning of Section 7701(a)(30) of the Code shall deliver to such Guarantor and Agent executed originals of Internal Revenue Service Form W-9 or such other documentation or information prescribed by applicable Laws
or reasonably requested by such Guarantor or Agent as will enable such Guarantor or Agent, as the case may be, to determine whether or not such Lender is subject to backup withholding or information reporting requirements; and 

(B) each Foreign Lender that is entitled under the Code or any applicable treaty to an exemption from or reduction of
withholding tax with respect to payments hereunder or under any other Loan Document shall deliver to such Guarantor and Agent (in such number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender
becomes a Lender under the Credit Agreement (and from time to time thereafter upon the request of such Guarantor or Agent, but only if such Foreign Lender is legally entitled to do so), whichever of the following is applicable: 

(I) executed originals of Internal Revenue Service Form W-8BEN claiming eligibility for benefits of an income tax
treaty to which the United States is a party, 
 (II) executed originals of Internal Revenue Service Form
W-8ECI, 
 (III) executed originals of Internal Revenue Service Form W-8IMY and all required supporting
documentation, 
 (IV) in the case of a Foreign Lender claiming the benefits of the exemption for portfolio
interest under section 881(c) of the Code, (x) a certificate to the effect that such Foreign Lender is not (A) a “bank” within the meaning of section 881(c)(3)(A) of the Code, (B) a “10 percent shareholder” of a
Guarantor within the meaning of section 881(c)(3)(B) of the Code, or (C) a “controlled foreign corporation” described in section 881(c)(3)(C) of the Code and (y) executed originals of Internal Revenue Service Form W-8BEN, or

  
 9 

 (V) executed originals of any other form prescribed by applicable Laws
as a basis for claiming exemption from or a reduction in United States Federal withholding tax together with such supplementary documentation as may be prescribed by applicable Laws to permit the such Guarantor or the Administrative Agent to
determine the withholding or deduction required to be made. 
 (iii) Each Lender shall promptly
(A) notify the Guarantors and Agent of any change in circumstances which would modify or render invalid any claimed exemption or reduction, and (B) take such steps as shall not be materially disadvantageous to it, in the reasonable
judgment of such Lender, and as may be reasonably necessary (including the re-designation of its Lending Office) to avoid any requirement of applicable Laws of any jurisdiction that the Guarantors or Agent make any withholding or deduction for taxes
from amounts payable to such Lender. 
 (f) Treatment of Certain Refunds. Unless required by applicable Laws,
at no time shall Agent have any obligation to file for or otherwise pursue on behalf of a Lender or the L/C Issuer, or have any obligation to pay to any Lender or the L/C Issuer, any refund of Taxes withheld or deducted from funds paid for the
account of such Lender or the L/C Issuer, as the case may be. If Agent, any Lender or the L/C Issuer determines, in its sole discretion, that it has received a refund of any Taxes or Other Taxes as to which it has been indemnified by a
Guarantor or with respect to which a Guarantor has paid additional amounts pursuant to this Section, it shall pay to such Guarantor an amount equal to such refund (but only to the extent of indemnity payments made, or additional amounts
paid, by such Guarantor under this Section with respect to the Taxes or Other Taxes giving rise to such refund), net of all out-of-pocket expenses incurred by Agent, such Lender or the L/C Issuer, as the case may be, and without interest (other than
any interest paid by the relevant Governmental Authority with respect to such refund), provided that the Guarantors, upon the request of Agent, such Lender or the L/C Issuer, agree, jointly and severally, to repay the amount paid over to the
Guarantors (plus any penalties, interest or other charges imposed by the relevant Governmental Authority) to Agent, such Lender or the L/C Issuer in the event Agent, such Lender or the L/C Issuer is required to repay such refund to such Governmental
Authority. This subsection shall not be construed to require Agent, any Lender or the L/C Issuer to make available its tax returns (or any other information relating to its taxes that it deems confidential) to any Guarantor, any Loan Party or
any other Person. 

  
 10 

	6.	OTHER TERMS. 

 6.1
Entire Agreement. This Guaranty, together with the other Loan Documents, constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all prior agreements relating to a guaranty of the loans
and advances under the Loan Documents and/or the Guaranteed Obligations. 
 6.2 Headings. The headings in this Guaranty
are for convenience of reference only and are not part of the substance of this Guaranty. 
 6.3 Severability. Whenever
possible, each provision of this Guaranty shall be interpreted in such a manner to be effective and valid under applicable law, but if any provision of this Guaranty shall be prohibited by or invalid under applicable law, such provision shall be
ineffective to the extent of such prohibition or invalidity, without invalidating the remainder of such provision or the remaining provisions of this Guaranty. 
 6.4 Notices. Whenever it is provided herein that any notice, demand, request, consent, approval, declaration or other communication shall or may be given to or served upon any of the parties by any
other party, or whenever any of the parties desires to give or serve upon another any such communication with respect to this Guaranty, each such notice, demand, request, consent, approval, declaration or other communication shall be in such form,
delivered in the manner, and shall be effective, as is set forth in Section 10.02 of the Credit Agreement; provided, however, that notices to the Guarantors shall be delivered to the following address: 

 

			
	c/o InfuSystem Holdings, Inc.,
	31700 Research Park Drive
	Madison Heights, MI 48071
	Attention:	  	__________________________
	Telephone:	  	_________________________
	Telecopier:	  	_________________________
	Electronic Mail:	  	_______@_____

  
 11 

 6.5 Successors and Assigns. This Guaranty and all obligations of the Guarantors
hereunder shall be binding upon the successors and assigns of each Guarantor (including a debtor-in-possession on behalf of such Guarantor) and shall, together with the rights and remedies of the Administrative Agent, for itself and for the benefit
of the Lenders, hereunder, inure to the benefit of the Administrative Agent and the Lenders, all future holders of any instrument evidencing any of the Obligations and their respective successors and assigns. No sales of participations, other sales,
assignments, transfers or other dispositions of any agreement governing or instrument evidencing the Obligations or any portion thereof or interest therein shall in any manner affect the rights of the Administrative Agent and the Lenders hereunder.
The Guarantors may not assign, sell, hypothecate or otherwise transfer any interest in or obligation under this Guaranty. 
 6.6
No Waiver; Cumulative Remedies; Amendments. Neither the Administrative Agent nor any Lender shall by any act, delay, omission or otherwise be deemed to have waived any of its rights or remedies hereunder, and no waiver shall be valid unless
in writing, signed by the Administrative Agent and then only to the extent therein set forth. A waiver by the Administrative Agent, for itself and the ratable benefit of the Lenders, of any right or remedy hereunder on any one occasion shall not be
construed as a bar to any right or remedy which the Administrative Agent would otherwise have had on any future occasion. No failure to exercise nor any delay in exercising on the part of the Administrative Agent or any Lender, any right, power or
privilege hereunder, shall operate as a waiver thereof, nor shall any single or partial exercise of any right, power or privilege hereunder preclude any other or future exercise thereof or the exercise of any other right, power or privilege. The
rights and remedies hereunder provided are cumulative and may be exercised singly or concurrently, and are not exclusive of any rights and remedies provided by law. None of the terms or provisions of this Guaranty may be waived, altered, modified,
supplemented or amended except by an instrument in writing, duly executed by the Administrative Agent and the Guarantors. 
 6.7
Termination. This Guaranty is a continuing guaranty and shall remain in full force and effect until the Termination Date subject, however, to any reinstatement provisions contained herein. Following the Termination Date, the Administrative
Agent shall deliver to the Guarantors such documents as the Guarantors may reasonably request to evidence such termination. 

6.8 Counterparts. This Guaranty may be executed in any number of counterparts, each of which shall collectively and separately
constitute one and the same agreement. 

  
 12 

 6.9 Governing Law; Consent to Jurisdiction and Venue. EXCEPT AS OTHERWISE
EXPRESSLY PROVIDED IN ANY OF THE LOAN DOCUMENTS, THIS GUARANTY AND THE OBLIGATIONS ARISING HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF ILLINOIS. EACH GUARANTOR AND AGENT IRREVOCABLY AND
UNCONDITIONALLY SUBMITS, FOR ITSELF AND ITS PROPERTY, TO THE NONEXCLUSIVE JURISDICTION OF THE COURTS OF THE STATE OF ILLINOIS SITTING IN COOK COUNTY AND OF THE UNITED STATES DISTRICT COURT OF THE NORTHERN DISTRICT OF ILLINOIS, AND ANY APPELLATE
COURT FROM ANY THEREOF, IN ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS GUARANTY OR ANY OTHER LOAN DOCUMENT, OR FOR RECOGNITION OR ENFORCEMENT OF ANY JUDGMENT, AND EACH GUARANTOR AND AGENT IRREVOCABLY AND UNCONDITIONALLY AGREES THAT
ALL CLAIMS IN RESPECT OF ANY SUCH ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH ILLINOIS STATE COURT OR, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN SUCH FEDERAL COURT. EACH GUARANTOR AND AGENT AGREES THAT A FINAL JUDGMENT IN
ANY SUCH ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER JURISDICTIONS BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER PROVIDED BY LAW. EACH GUARANTOR IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, ANY OBJECTION
WHICH IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF THE VENUE OF ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM THAT ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM. EACH OF THE PARTIES HERETO
IRREVOCABLY CONSENTS TO SERVICE OF PROCESS IN THE MANNER PROVIDED FOR NOTICES IN SECTION 7.4. NOTHING IN THIS AGREEMENT WILL AFFECT THE RIGHT OF ANY PARTY TO THIS AGREEMENT TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW.

 6.10 Waiver of Jury Trial. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL
BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THE LOAN DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED THEREBY AND TO THE FULLEST EXTENT PERMITTED BY LAW WAIVES ANY RIGHTS THAT IT MAY HAVE TO CLAIM OR RECEIVE CONSEQUENTIAL OR SPECIAL
DAMAGES IN CONNECTION WITH ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THE LOAN DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED THEREBY. 
 6.11 Limitation on Guaranteed Obligations. Notwithstanding any provision herein contained to the contrary, each Guarantor’s liability hereunder shall be limited to an amount not to exceed as
of any date of determination the greater of: 
 (a) the net amount of all Loans and other extensions of credit (including
Letters of Credit) advanced under the Credit Agreement and directly or indirectly re-loaned or otherwise transferred to, or incurred for the benefit of, such Guarantor, plus interest accrued thereon in accordance with the Credit Agreement; or

 (b) the amount which could be claimed by the Administrative Agent and the Lenders from such Guarantor under this Guaranty
without rendering such claim voidable or avoidable under Section 548 of Chapter 11 of the Bankruptcy Code or under any applicable state Uniform Fraudulent Transfer Act, Uniform Fraudulent Conveyance Act or similar statute or common law or any
other Debtor Relief Law after taking into account, among other things, such Guarantor’s right of contribution and indemnification from each other Guarantor under Section 6.12. 

  
 13 

 6.12 Contribution with Respect to Guaranteed Obligations. 

(a) To the extent that any Guarantor shall make a payment under this Guaranty of all or any of the Guaranteed Obligations (a
“Guarantor Payment”) which, taking into account all other Guarantor Payments then previously or concurrently made by the other Guarantors, exceeds the amount which such Guarantor would otherwise have paid if each Guarantor had paid
the aggregate Guaranteed Obligations satisfied by such Guarantor Payment in the same proportion that such Guarantor’s “Allocable Amount” (as defined below) (in effect immediately prior to such Guarantor Payment) bore to the aggregate
Allocable Amounts of all of the Guarantors in effect immediately prior to the making of such Guarantor Payment, then, following indefeasible payment in full in cash of the Obligations and termination of the Commitments, such Guarantor shall
be entitled to receive contribution and indemnification payments from, and be reimbursed by, each of the other Guarantors for the amount of such excess, pro rata based upon their respective Allocable Amounts in effect immediately prior
to such Guarantor Payment. 
 (b) As of any date of determination, the “Allocable Amount” of any Guarantor
shall be equal to the maximum amount of the claim which could then be recovered from such Guarantor under this Guaranty without rendering such claim voidable or avoidable under Section 548 of Chapter 11 of the Bankruptcy Code or under any
applicable state Uniform Fraudulent Transfer Act, Uniform Fraudulent Conveyance Act or similar statute or common law or any other Debtor Relief Law. 
 (c) This Section 6.12 is intended only to define the relative rights of the Guarantors and nothing set forth in this Section 6.12 is intended to or shall impair the obligations of
the Guarantors, jointly and severally, to pay any amounts as and when the same shall become due and payable in accordance with the terms of this Guaranty. 
 (d) The rights of the parties under this Section 6.12 shall be exercisable upon the full and indefeasible payment of the Guaranteed Obligations and the termination of the Credit Agreement and
the other Loan Documents. 
 (e) The parties hereto acknowledge that the rights of contribution and indemnification hereunder
shall constitute assets of any Guarantor to which such contribution and indemnification is owing. 
  

	7.	SECURITY. 

 To secure
payment of each Guarantor’s obligations under this Guaranty, concurrently with the execution of this Guaranty, such Guarantor has joined the (i) the Security Agreement, as a “Grantor” and (ii) the Pledge Agreement, as a
“Pledgor”, pursuant to which each Guarantor has granted to the Administrative Agent for the benefit of the Lenders a security interest in substantially all of its personal property and pledged all of the Equity Interests of each of its
Subsidiaries to the Administrative Agent for the benefit of the Lenders. 

  
 14 

	8.	CREDIT AGREEMENT. 

 Each Guarantor agrees
to perform, comply with and be bound by the covenants contained in Article VI (other than Sections 6.01, 6.02 and 6.03) and Article VII of the Credit Agreement (which provisions are incorporated herein by reference) as if each
Guarantor were a Loan Party signatory to the Credit Agreement. 
 [Remainder of page left intentionally blank; signature page
follows] 

  
 15 

 IN WITNESS WHEREOF, the parties hereto have executed and delivered this Subsidiary
Guaranty as of the date first above written. 
  

			
	GUARANTORS:
	
	IFC LLC
		
	By:	 	  

	Name:	 	Sean McDevitt
	Title:	 	Sole Manager
	
	ADMINISTRATIVE AGENT:
	
	BANK OF AMERICA, N.A., as Administrative Agent
		
	By:	 	  

	Name:	 	  

	Title:	 	  

 Exhibit B 

JOINDER TO SECURITY AGREEMENT 
 The undersigned, IFC LLC, a Delaware limited liability company (“IFC”), as of this 1st day of April, 2011 hereby joins in the execution of that certain Security Agreement dated as of June 15, 2010 (as
amended, supplemented, restated or otherwise modified from time to time, the “Security Agreement”) previously executed and delivered by InfuSystem Holdings, Inc., a Delaware corporation, InfuSystem, Inc., a California corporation,
First Biomedical, Inc., a Kansas corporation and each other Person that becomes a Pledgor thereunder after the date and pursuant to the terms thereof, in favor of Bank of America, N.A., as the Administrative Agent (the “Administrative
Agent”) for all Secured Parties. By executing this joinder (this “Joinder”), the undersigned hereby agrees that it is a “Grantor” under the Security Agreement and agrees to be bound by all of the terms and
provisions of the Security Agreement. All capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Security Agreement. In furtherance of the foregoing, IFC agrees as follows: 

1. Joinder to Security Agreement. IFC is hereby joined in, and hereby agrees that it is, and for all purposes after the date
hereof shall be a “Grantor” party to the Security Agreement as if IFC were an original signatory thereto in the same manner and capacity as a “Grantor” thereunder. The term “Grantor” as used in the Security Agreement
shall be deemed to include IFC. IFC acknowledges the Administrative Agent’s security interest in the Collateral and agrees that the Administrative Agent’s Liens on such Collateral granted under the Security Agreement are not released or
impaired in any way as a result of the execution of this Joinder to Security Agreement (this “Joinder”). 

Additionally, IFC acknowledges that, by its execution of this Joinder, it has assigned and transferred to the Administrative Agent, and
has granted to the Administrative Agent, for the benefit of the Secured Parties, a continuing security interest in all of its Collateral, as collateral security for the prompt and complete payment and performance when due (whether at the stated
maturity, by acceleration or otherwise) of each and all of the Secured Obligations. For the avoidance of doubt, IFC agrees and acknowledge that the following property of IFC shall be deemed to be “Collateral” under the Security Agreement
as of the date of this Joinder: (a) all of the personal property now owned or at any time hereafter acquired by IFC or in which IFC now has or at any time in the future may acquire any right, title or interest, including all of IFC’s
Accounts, Chattel Paper, Commercial Tort Claims, Deposit Accounts, Documents, Equipment, Fixtures, General Intangibles, Goods, Instruments, Intellectual Property, Inventory, Investment Property, Leases, Letter-of-Credit Rights, Money, Supporting
Obligations and Identified Claims, (b) all books and records pertaining to any of the foregoing, (c) all Proceeds and products of any of the foregoing, and (d) all collateral security and guaranties given by any Person with respect to
any of the foregoing. Notwithstanding anything to the contrary contained herein, the “Collateral” pledged by IFC shall not include (a) any asset to the extent that a grant of a security interest therein is validly prohibited by or not
possible under any applicable Laws or is validly prohibited by, or constitutes a breach or default under or results in the termination of or gives rise to any right of acceleration, modification or cancellation under any contract, license,
agreement, instrument or other document evidencing or giving rise to IFC’s right to use such asset, or would result in the forfeiture of IFC’s rights in the asset, but only, in each case, to the extent, and for so long as, such prohibition
is not removed, terminated or rendered unenforceable or otherwise deemed ineffective by the UCC (including Sections 9-406, 9-407, 9-408 or 9-409 thereof) or any other applicable Law, or (b) Equity Interests representing more than 65% of the
voting stock of any direct or indirect Subsidiary of IFC that is a first-tier CFC; provided, however, that any proceeds, substitutions or replacements of any property included in subclauses (a) and (b) above shall not be excluded (unless
such proceeds, substitutions or replacements would itself constitute property excluded under subclause (a) or (b)). 

 2. Representations and Warranties. IFC hereby represents and warrants to the Bank
that, except as disclosed on Schedule 2 hereto, each of the representations and/or warranties contained in the Security Agreement applicable to IFC are true and correct as it pertains to IFC, except to the extent that such representations and
warranties (a) solely relate to an earlier date or (b) have been changed by circumstances permitted by the Credit Agreement, as amended, or by this Joinder. Attached hereto as Attachment I are Schedules 1 through 7 to the Security
Agreement, updated to reflect IFC as a “Grantor” under the Security Agreement. IFC and each of the existing Grantors agrees that this Joinder and the schedules and attachments hereto may be attached to the Security Agreement and shall be
and become a part of the Security Agreement. 
 3. No Additional Amendments. Except as amended pursuant to this Joinder,
the Security Agreement shall remain unchanged and in full force and effect in accordance with each of their respective terms. 

4. Governing Law. This Joinder and the rights and obligations set forth herein shall be governed by and shall be construed and
enforced in accordance with the internal laws of the State of Illinois, without regard to conflicts of law principles. 

[signature page attached] 

 IN WITNESS WHEREOF, the parties hereto have caused this Joinder to be executed as of the
first date written above. 
  

			
	IFC:
	
	IFC LLC
		
	By:	 	  

	Name:	 	Sean McDevitt
	Title:	 	Sole Manager
	
	ACCEPTED AND AGREED TO:
	
	Administrative Agent:
	
	BANK OF AMERICA, N.A., as Administrative Agent
		
	By:	 	  

	Name:	 	  

	Title:	 	  

	
	ACCEPTANCE BY EXISTING GRANTORS:
	
	INFUSYSTEM HOLDINGS, INC.
		
	By:	 	  

	Name:	 	James Froisland
	Title:	 	CFO
	
	FIRST BIOMEDICAL, INC.
		
	By:	 	  

	Name:	 	James Froisland
	Title:	 	CFO
	
	INFUSYSTEM, INC.
		
	By:	 	  

	Name:	 	James Froisland
	Title:	 	CFO

  
 Joinder Agreement

 Schedule 2 
 None. 

 Attachment I 
 [see attached] 

 SCHEDULE 1 
 INVESTMENT PROPERTY 
  

	A.	PLEDGED EQUITY 

  

													
	 Grantor (owner of
 Record of such
 Pledged
Equity)
	  	 Issuer
	  	 Pledged Equity Description
	  	Percentage
of Issuer	 	 	Certificate
(Indicate
No.)	 
	 InfuSystem Holdings, Inc.
	  	InfuSystem, Inc.	  	100 shares, par value $0.01	  	 	100	% 	 	 	1	  
	 InfuSystem Holdings, Inc.
	  	First Biomedical, Inc.	  	20,000 shares Class A, par value $0.02	  	 	20	% 	 	 	28	  
	 InfuSystem Holdings, Inc.
	  	First Biomedical, Inc.	  	80,000 shares Class B, par value $0.02	  	 	80	% 	 	 	29	  
	 InfuSystem Holdings, Inc.
	  	IFC LLC	  	outstanding membership interests	  	 	100	% 	 	 	N/A	  

  

	B.	PLEDGED NOTES 

  

					
	 Grantor (owner of
 Record of such
 Pledged
Notes)
	  	Issuer	  	Pledged Notes
Description
	N/A	  	N/A	  	N/A

  

	C.	OTHER INVESTMENT PROPERTY 

  

			
	 Grantor
	  	Investment Property Description
	N/A	  	N/A

 SCHEDULE 2 
 FILINGS AND PERFECTION 
  

					
	 GRANTOR
	  	FILING REQUIREMENT
OR OTHER
ACTION	  	FILING OFFICE
	 InfuSystem Holdings, Inc.
	  	UCC-1	  	DE
	 InfuSystem, Inc.
	  	UCC-1	  	CA
	 First Biomedical, Inc.
	  	UCC-1	  	KS
	 IFC LLC
	  	UCC-1	  	DE

 SCHEDULE 3 
 GRANTOR INFORMATION 
  

							
	 GRANTOR

(exact legal name)
	 	 STATE OF

ORGANIZATION
	 	 FEDERAL

EMPLOYER

IDENTIFICATION
 NUMBER
	 	 CHIEF EXECUTIVE

OFFICE

	InfuSystem Holdings, Inc.	 	DE	 	20-3341405	 	 31700 Research Park Drive

Madison Heights, MI 48071

				
	InfuSystem, Inc.	 	CA	 	94-3295573	 	 31700 Research Park Drive

Madison Heights, MI 48071

				
	First Biomedical, Inc.	 	KS	 	48-1201738	 	 878 N. Jan-Mar Ct.
 Olathe, KS
66061

				
	IFC LLC	 	DE	 	27-5125544	 	 31700 Research Park Drive

Madison Heights, MI 48071

 SCHEDULE 4 
 A. COLLATERAL LOCATIONS 
  

							
	 GRANTOR
	 	 COLLATERAL
	 	 COLLATERAL

LOCATION

OR PLACE OF BUSINESS
(INCLUDING CHIEF
 EXECUTIVE OFFICE)
	 	 OWNER/LESSOR

(IF LEASED)

	InfuSystem Holdings, Inc.	 	Equipment, inventory, books and records, general office	 	 31700 Research Park Drive

Madison Heights, MI 48071
	 	 Liberty Property Limited Partnership
 Contact: Donna Wagner
 Phone: 610-648-1747
 500 Chesterfield Parkway
 Malvern, PA 19355

				
		 	General office	 	 400 Madison Ave., Suite 11A

New York, NY 10017
	 	N/A
				
	InfuSystem, Inc.	 	Equipment, inventory, books and records, general office	 	 31700 Research Park Drive

Madison Heights, MI 48071
	 	 Liberty Property Limited Partnership
 Contact: Donna Wagner
 Phone: 610-648-1747
 500 Chesterfield Parkway
 Malvern, PA 19355

				
		 	General office	 	 469 Main Street, Suite 4

Bennington, VT 05201
	 	 Nancy and Kristopher Woltman

Contact: Nancy Woltman
 Phone:
802-442-8859
 530 Main Street

Bennington, VT 05201

							
	 GRANTOR
	 	 COLLATERAL
	 	 COLLATERAL

LOCATION

OR PLACE OF BUSINESS
(INCLUDING CHIEF
 EXECUTIVE OFFICE)
	 	 OWNER/LESSOR

(IF LEASED)

	First Biomedical, Inc.	 	Equipment, inventory, books and records, general office	 	 878 N. Jan-Mar Ct.
 Olathe, KS
66061
	 	 Jan-Mar LLC
 Contact: Tom
Creal
 Phone: 913-269-4242
 878 N.
Jan-Mar Ct.
 Olathe, KS 66061

				
		 	Equipment, inventory, books and records, general office	 	 882 Jan Mar Ct.
 Olathe, KS
66061
	 	 CW Investment Group, LLC

Contact: Tom Creal
 Phone:
913-269-4242
 882 Jan Mar Ct.
 Olathe,
KS 66061

				
		 	Equipment, inventory	 	 12015 Mora Dr., Unit 6
 Santa
Fe Springs, CA 90670
	 	 Legacy Partners II Santa Fe Springs, LLC
 Contact: Mary Reyes
 Phone: 562-946-4370
 12016 Telegraph Road, Suite 203
 Santa Fe Springs, CA 90670

				
		 	Equipment, inventory	 	 3835 Old Waverly Cove #102

Memphis, TN 38125
	 	 Contact: Yong Dushlek
 Phone:
901-569-4246
 3835 Old Waverly Cove #102

Memphis, TN 38125

				
		 	Equipment, inventory	 	 First Biomedical Canada
 5250
Satellite Drive, Unit 12
 Mississauga, Ontario
 L4W5G5
	 	 Marble Point Properties Inc.

Contact: Marta DiFabio
 Phone:
905-670-6666
 1415 Bonhill Rd, Unit 1

Mississauga, Ontario L4W5G5

							
	 GRANTOR
	 	 COLLATERAL
	 	 COLLATERAL

LOCATION

OR PLACE OF BUSINESS
(INCLUDING CHIEF
 EXECUTIVE OFFICE)
	 	 OWNER/LESSOR

(IF LEASED)

	IFC LLC	 	Books and records, general office	 	 31700 Research Park Drive

Madison Heights, MI 48071
	 	 Liberty Property Limited Partnership
 Contact: Donna Wagner
 Phone: 610-648-1747
 500 Chesterfield Parkway
 Malvern, PA 19355

				
		 	Books and records, general office	 	 878 N. Jan-Mar Ct.
 Olathe, KS
66061
	 	 Jan-Mar LLC
 Contact: Tom
Creal
 Phone: 913-269-4242
 878 N.
Jan-Mar Ct.
 Olathe, KS 66061

 B. COLLATERAL IN POSSESSION OF LESSOR, 

BAILEE, CONSIGNEE OR WAREHOUSEMAN 
  

							
	 GRANTOR
	 	 COLLATERAL
	 	 COLLATERAL

LOCATION
	 	 LESSOR/BAILEE/

CONSIGNEE/

WAREHOUSEMAN

	First Biomedical, Inc.	 	Equipment, inventory	 	 309 Laurelwood Road
 Santa
Clara, CA 95054
	 	 Priority Dispatch Services

Contact: Larry Stewart
 Phone:
866-420-2477
 39737 Paseo Padre Parkway, Suite D
 Fremont, CA 94538

				
		 	Equipment, inventory	 	 1055
19th Street

Denver, CO 80202
	 	 Skyfreight
 Contact: Shannon
Olson
 Phone: 303-295-6600
 1055 19th
Street (Attn: 20th Street Entrance)
 PO Box 13016
 Denver, CO 80202

				
		 	Equipment, inventory	 	 17505 William Circle
 Omaha, NE
68130
	 	 Nordstrom
 Contact: Laura
Sherwood
 Phone: 402-515-5583
 17505
William Circle
 Omaha, NE 68130

 SCHEDULE 5 
 INTELLECTUAL PROPERTY 
 Patents and Patent Licenses 

 

									
	 Grantor
	 	 Patent

Number
	 	 Patent Application

Number
	 	 Date

Patent

Issued
	 	 Date

Patent

Applied

	N/A	 	N/A	 	N/A	 	N/A	 	N/A

 Trademarks and Trademark Licenses

  

							
	 Grantor
	  	 Trademark
	  	Trademark Number	 
	 InfuSystem, Inc.
	  	Ambulatory Infusion Made Easy	  	 	3,719,471	  
	 InfuSystem, Inc.
	  	InfuSelect	  	 	3,709,777	  
	 InfuSystem, Inc.
	  	InfuRecover	  	 	3,709,775	  
	 InfuSystem, Inc.
	  	InfuSupport	  	 	3,709,774	  
	 InfuSystem, Inc.
	  	InfuAssist	  	 	3,709,778	  
	 InfuSystem, Inc.
	  	InfuEase	  	 	3,709,779	  
	 InfuSystem, Inc.
	  	InfuAdvantage	  	 	3,702,766	  
	 InfuSystem, Inc.
	  	InfuSystem	  	 	3,624,007	  
	 InfuSystem, Inc.
	  	InfuSystem	  	 	3,620,528	  

 Copyrights 

 

									
	 Grantor
	 	 Copyright

Title
	 	 Copyright

Application
	 	 Copyright

Registration

Number
	 	 Copyright

Application

Number

	N/A	 	N/A	 	N/A	 	N/A	 	N/A

 SCHEDULE 6 
 DEPOSITORY AND OTHER DEPOSIT ACCOUNTS 
  

							
	 CREDIT PARTY
	 	 DEPOSITORY BANK
	 	 TYPE OF ACCOUNT
	 	 ACCT. NO.

	InfuSystem	 	Fifth Third Bank	 	Checking	 	
				
	InfuSystem	 	Fifth Third Bank	 	Checking (payroll)	 	
				
	FBI	 	UMB Bank, N.A.	 	Checking	 	
				
	FBI	 	First National Bank of Olathe	 	Checking	 	
				
	FBI	 	First National Bank of Olathe	 	Credit Card	 	

 SCHEDULE 7 
 COMMERCIAL TORT CLAIMS 
 None. 

 Exhibit C 

JOINDER TO PLEDGE AGREEMENT 
 The undersigned, IFC LLC, a Delaware limited liability company (“IFC”), as of this 1st day of April, 2011 hereby joins in the execution of that certain Pledge Agreement dated as of June 15, 2010 (as
amended, supplemented, restated or otherwise modified from time to time, the “Pledge Agreement”) previously executed and delivered by InfuSystem Holdings, Inc., a Delaware corporation, InfuSystem, Inc., a California corporation,
First Biomedical, Inc., a Kansas corporation and each other Person that becomes a Pledgor thereunder after the date and pursuant to the terms thereof, in favor of Bank of America, N.A., as the Administrative Agent (the “Administrative
Agent”) for all Secured Parties. By executing this joinder (this “Joinder”), the undersigned hereby agrees that it is a “Pledgor” under the Pledge Agreement and agrees to be bound by all of the terms and
provisions of the Pledge Agreement. All capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Pledge Agreement. In furtherance of the foregoing, IFC agrees as follows: 

1. Joinder to Pledge Agreement. IFC is hereby joined in, and hereby agrees that it is, and for all purposes after the date hereof
shall be a “Pledgor” party to the Pledge Agreement as if IFC were an original signatory thereto in the same manner and capacity as a “Pledgor” thereunder. The term “Pledgor” as used in the Pledge Agreement shall be
deemed to include IFC. IFC acknowledges the Administrative Agent’s security interest in the Pledged Collateral and agrees that the Administrative Agent’s Liens on such Pledged Collateral granted under the Pledge Agreement are not released
or impaired in any way as a result of the execution of this Joinder to Pledge Agreement (this “Joinder”). 

Additionally, IFC acknowledges that, by its execution of this Joinder, it has pledged to the Administrative Agent, and otherwise granted
to the Administrative Agent, for the benefit of the Secured Parties, a first priority security interest in all of the following, as security for the Secured Liabilities, which shall be included as Pledged Collateral under the Pledge Agreement:

 (a) those Equity Interests listed on Schedule I hereto and, if applicable, the certificates
representing such shares, and all dividends, distributions, cash, instruments and other property or proceeds from time to time received, receivable or otherwise distributed in respect of or in exchange for any or all of such shares of the
undersigned; and 
 (b) such portion, as determined by Administrative Agent as provided in Section 6(d) of
the Pledge Agreement, of any additional Equity Interests of any Subsidiary from time to time acquired by any Pledgor in any manner (which Equity Interests shall be deemed to be part of the Pledged Interests or Pledged Shares, as applicable, and
otherwise Pledged Collateral hereunder), and the certificates representing such Equity Interests, if any, and all dividends, distributions, cash, instruments and other property or proceeds from time to time received, receivable or otherwise
distributed in respect of or in exchange for any or all of such shares or interests. Notwithstanding anything to the contrary contained herein, the Pledged Collateral shall not include Pledged Shares representing more than 65% of the voting stock of
any direct or indirect Subsidiary of any Pledgor that is a CFC 

 The undersigned and each existing Pledgor further agrees that this Joinder may be attached
to the Pledge Agreement and that the shares and/or membership interests listed on Schedule I hereto shall be and become a part of the Pledged Collateral referred to in said Pledge Agreement and shall secure all Secured Liabilities referred to
in said Pledge Agreement. 
 2. Representations and Warranties. IFC hereby represents and warrants to the Administrative
Agent and each Lender that, each of the representations and/or warranties contained in the Pledge Agreement applicable to IFC are true and correct as it pertains to IFC, except to the extent that such representations and warranties (a) solely
relate to an earlier date or (b) have been changed by circumstances permitted by the Credit Agreement or the Pledge Agreement, as amended. 
 3. No Additional Amendments. Except as amended pursuant to this Joinder, the Pledge Agreement shall remain unchanged and in full force and effect in accordance with each of its terms. 

4. Governing Law. This Joinder and the rights and obligations set forth herein shall be governed by and shall be construed and
enforced in accordance with the internal laws of the State of Illinois, without regard to conflicts of law principles. 

[signature page attached] 

 IN WITNESS WHEREOF, the undersigned has executed this Joinder dated as of the first
date written above. 
  

			
	IFC:
	
	IFC LLC
		
	By:	 	  

	Name:	 	Sean McDevitt
	Title:	 	Sole Manager
	
	ACCEPTED AND AGREED TO:
	
	Administrative Agent:
	
	BANK OF AMERICA, N.A., as Administrative Agent
		
	By:	 	  

	Name:	 	  

	Title:	 	  

	
	ACCEPTANCE BY EXISTING PLEDGORS:
	
	INFUSYSTEM HOLDINGS, INC.
		
	By:	 	  

	Name:	 	            James Froisland
	Title:	 	            CFO
	
	FIRST BIOMEDICAL, INC.
		
	By:	 	  

	Name:	 	            James Froisland
	Title:	 	            CFO
	
	INFUSYSTEM, INC.
		
	By:	 	  

	Name:	 	            James Froisland
	Title:	 	            CFO

  
 Joinder Agreement

 SCHEDULE I 
 TO 
 THE JOINDER TO PLEDGE AGREEMENT 

PLEDGED SHARES/INTERESTS 
 None.

  

 Exhibit D 

EXECUTION VERSION 
 CERTIFICATE OF THE MANAGER 
 OF IFC LLC 

April 1, 2011 

In connection with the Second Amendment to Credit Agreement (the “Amendment Agreement”; capitalized terms used but not
otherwise defined herein shall have the meanings assigned to such terms in the Amendment Agreement) dated as of the date hereof, to the Credit Agreement dated as of June 15, 2010 (as amended as of the date hereof, the “Credit
Agreement”), by and among (i) InfuSystem Holdings, Inc., InfuSystem, Inc. and First Biomedical, Inc., as borrowers, (ii) Bank of America, N.A., as Administrative Agent (the “Agent”), and (iii) the other
Lenders party thereto (as defined therein), the undersigned, the Manager of IFC LLC, a Delaware limited liability company (hereinafter referred to as the “Company”), has knowledge of the matters contained in this Certificate and
hereby certifies, pursuant to Section 4.1(e) of the Amendment Agreement, that: 
  

	 	1.	The Certificate of Formation attached to this Certificate as “Exhibit A” and Limited Liability Company Agreement of the Company attached to this
Certificate as “Exhibit B” are true and correct copies of the current Certificate of Formation and the Limited Liability Company Agreement of the Company, have not been altered, modified or amended and are in full force and effect.

  

	 	2.	Attached to this Certificate as Exhibit “C” is a true and complete copy of the Company’s certificate of good standing issued by the Secretary of
State of the State of Delaware. Since the date thereof, no event has occurred which has affected the good standing of the Company. 

  

	 	3.	Attached to this Certificate as Exhibit “D” is a true and complete copy of the resolutions adopted by the Company pursuant to a written consent of the
Board of Managers of the Company dated as of the date hereof (the “Written Consent”) authorizing the execution, delivery and performance of the Consent, Amendment and Joinder Documents and approving any such other documents and
instruments as required by the Agent pursuant to the terms of the Credit Agreement (hereinafter collectively referred to as the “Amendment Documents”). Said Written Consent has not been altered, amended, repealed or rescinded, and
is now in full force and effect. 

  

	 	4.	Each of the officers shown below is a duly elected or appointed, qualified and acting officer of the Company holding the office indicated below, is authorized by the
relevant excerpt from the Written Consent to execute and deliver the Amendment Documents and all related agreements, documents and instruments on behalf of the Company, and the signature set forth opposite each officer’s name is such
officer’s genuine signature. 

  

	 	5.	The undersigned is the duly elected, qualified and acting Sole Manager of the Company. 

					
	 Name
	  	 Title
	 	 Signature

	Sean McDevitt	  	Manager and Chief Executive Officer	 	

			
	James Froisland	  	Chief Financial Officer, Treasurer and Secretary	 	

 IN WITNESS WHEREOF, the undersigned has executed and delivered this Certificate as of the
date first written above. 
  

	
	
 

	Sean McDevitt
	Manager and Chief Executive Officer

The undersigned, Chief Financial Officer, Treasurer and Secretary, does hereby certify as of the date first written above that Sean
McDevitt is the duly elected, qualified and acting Sole Manager and Chief Executive Officer of IFC LLC, and the signature appearing above is his genuine signature. 

 

	
	

	
James Froisland
 Chief Financial Officer, Treasurer and
Secretary

 [Signature Page to Manager’s Certificate of IFC LLCJ 

 EXHIBIT “A” 

CERTIFICATE OF FORMATION 

[See attached.] 

							
		 	 Delaware
	  	PAGE 1	  	
		 	The First State	  		  	

 I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED
IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF FORMATION OF “IFC LLC”, FILED IN THIS OFFICE ON THE SIXTEENTH DAY OF FEBRUARY, A.D. 2011, AT 5:47 O’CLOCK P.M. 

 

					
		 	

	 	
 

		 	 	Jeffrey W. Bullock, Secretary of State
	4941540 8100	 	 	AUTHENTICATION: 8566391
	  
 110169784
	 		 	  
 DATE: 02-16-11

	 You may verify this certificate online
 at corp.delaware,gov/authver.shtml
	 		 	

 
	
	State of Delaware
	Secretary of State
	Division of Corporations
	Delivered 06:00 PM 02/16/2011
	FILED 05:47 PM 02/16/2011
	SRV 110169784 - 4941540 FILE

 CERTIFICATE OF FORMATION 
 OF 

IFC LLC 
 This
Certificate of Formation of IFC LLC (the “Company”) is being executed and filed by the undersigned authorized person for the purpose of forming a limited liability company under the Delaware Limited Liability Company Act (6 Del. Code
§ 18101 et seq.). 
  

	 	1.	The name of the Delaware limited liability company formed hereby is IFC LLC. 

 

	 	2.	The address of the registered office of the Company in the State of Delaware is 1209 Orange Street, Wilmington, Delaware 19801. The name of the registered agent of the
Company for the service of process at such address is The Corporation Trust Company. 

 IN WITNESS WHEREOF,
undersigned has executed this Certificate of Formation on February 16th, 2011. 
  

	
	
 

	Sean McDevitt
	Authorized Person

 EXHIBIT “B” 

LIMITED LIABILITY COMPANY AGREEMENT 
 [See attached.] 

 LIMITED LIABILITY COMPANY AGREEMENT 

OF 
 IFC LLC

 a Delaware limited liability company 
 This LIMITED LIABILITY COMPANY AGREEMENT OF IFC LLC (this “Agreement”), dated as of February 18, 2011, is adopted, executed and agreed to by the Member (as defined below).

 1. Formation. IFC LLC (the “Company”) has been formed as a Delaware limited liability company
under and pursuant to the Delaware Limited Liability Company Act (the “Act”). 
 2. Term. The Company
shall have perpetual existence. 
 3. Purposes. The purposes of the Company are to carry on any lawful business,
purpose or activity for which limited liability companies may be formed under the Act. 
 4. Member. InfuSystem
Moldings, Inc. (the “Member”) shall be the sole initial member of the Company. 
 5. Registered
Office and Registered Agent. The address of the Company’s initial registered office in Delaware is 1209 Orange Street, Wilmington, DE 19801, and the name of the Company’s initial registered agent at such address is The Corporation
Trust Company. Another registered agent or registered office may be designated at any time by the Member. 
 6.
Contributions. The Member has made an initial contribution to the capital of the Company in the amount of $1.00 in exchange for a 100% membership interest in the Company. Without creating any rights in favor of any third party, the Member
may, from time to time, make additional contributions of cash or property to the capital of the Company, but shall have no obligation to do so. 
 7. Distributions. The Member shall be entitled (a) to receive all distributions (including, without limitation, liquidating distributions) made by the Company, and (b) to enjoy all
other rights, benefits and interests of ownership of the Company. 
 8. Board of Managers. The business and
affairs of the Company shall be managed by or under the direction of the Board of one or more Managers designated by the Member. The Member may determine at any time in its sole and absolute discretion the number of Managers on the Board of Managers
(the “Board”). The authorized number of Managers may be increased or decreased by the Member at any time in its sole and absolute discretion, upon notice to all Managers. The initial number of Managers shall be one (1), The initial
Manager designated by the Member is Sean McDevitt (the “Manager”). Each Manager elected, designated or appointed by the Member shall hold office until a successor is elected and qualified or until such Manager’s earlier death,
resignation, expulsion or removal. Managers need not be a member of the Company. 

 9. Meeting of the Managers. The Managers may hold meetings, both regular and
special, within or outside the State of Delaware. Regular meetings of the Managers may be held without notice at such time and at such place as shall from time to time be determined by the Managers. Special meetings of the Managers may be called by
the Member on not less than one day’s notice to each Manager by telephone, facsimile, mail, telegram or any other means of communication, and special meetings shall be called by the Member in like manner and with like notice upon the written
request of any one or more of the Managers. 
 10. Quorum; Acts of the Board. At all meetings of the Board, a
majority of the Managers shall constitute a quorum for the transaction of business and, except as otherwise provided in any other provision of this Agreement, the act of a majority of the Managers present at any meeting at which there is a quorum
shall be the act of the Board. If there are only two Managers on the Board, then the presence of both Managers shall be required for a quorum to be present and any act of the Board will be deemed approved only if approved by both Managers. If a
quorum shall not be present at any meeting of the Board, the Managers present at such meeting may adjourn the meeting from time to time, without notice other than announcement at the meeting, until a quorum shall be present. Any action required or
permitted to be taken at any meeting of the Board or of any committee thereof may be taken without a meeting and without prior notice if all Managers or members of the committee, as the case may be, consent thereto in writing, and the writing or
writings are filed with the minutes of proceedings of the Board or committee, as the case may be. 
 11. Committees of
Managers. The Board may, by resolution passed by a majority of the Managers, designate one or more committees, each committee to consist of one or more of the Managers. The Board may designate one or more Managers as alternate members of any
committee, who may replace any absent or disqualified member at any meeting of the committee. In the absence or disqualification of a member of a committee, the member or members thereof present at any meeting and not disqualified from voting,
whether or not such members constitute a quorum, may unanimously appoint another Manager to act at the meeting in the place of any such absent or disqualified member. Any such committee, to the extent provided in the resolution of the Board, shall
have and may exercise all the powers and authority of the Board in the management of the business and affairs of the Company. Such committee or committees shall have such name or names as may be determined from time to time by resolution adopted by
the Board. Each committee shall keep regular minutes of its meetings and report the same to the Board when required. 

12. General Powers. The Board shall have the power to do any and all acts necessary, convenient or incidental to or for the
furtherance of the purposes described herein, including all powers, statutory or otherwise (including, without limitation, the power and authority, pursuant to Section 18-407 of the Act, to delegate to one or more authorized agents or other
persons the rights and powers of the Board to manage and control the business and affairs of the Company). The Board and any such authorized agents shall have the authority to bind the Company. 

  
 2 

 13. Telephonic Communications. The Managers, or any committee designated by
the Managers, may participate in meetings of the Managers, or any committee, by means of telephone conference or similar communications equipment that allows all persons participating in the meeting to hear each other, and such participation in a
meeting shall constitute presence in person at the meeting. If all the participants are participating by telephone conference or similar communications equipment, the meeting shall be deemed to be held at the principal place of business of the
Company. 
 14. Compensation of Managers; Expenses. The Board shall have the authority to fix the compensation of
Managers. The Managers may be paid their expenses, if any, of attendance at meetings of the Board, which may be a fixed sum for attendance at each meeting of the Board or a stated salary as Manager. No such payment shall preclude any Manager from
serving the Company in any other capacity and receiving compensation therefor. Members of special or standing committees may be allowed like compensation for attending committee meetings. Notwithstanding the foregoing, Managers will receive no
compensation for these services as such, and the expenses of each Manager shall be the responsibility of the Member. 

15. Removal of Managers. Unless otherwise restricted by law, any Manager or the entire Board may be removed or expelled,
with or without cause, at any time by the Member, and any vacancy caused by any such removal or expulsion may be filled by action of the Member. 
 16. Managers as Agents. To the extent of their powers set forth in this Agreement, the Managers are agents of the Company for the purpose of the Company’s business, and the actions of
the Managers taken in accordance with such powers set forth in this Agreement shall bind the Company. 
 17.
Managers’ Standard of Care. The Managers shall discharge their duties to the Company in good faith and with that degree of care that an ordinarily prudent person in a similar position would use under similar circumstances. In discharging
their duties, the Managers shall be fully protected in relying in good faith upon the Company’s records and upon such information, opinions, reports, or statements by any person as to matters the Managers reasonably believe are within such
other person’s professional or expert competence and who has been selected with reasonable care by or on behalf of the Company, including information, opinions, reports or statements as to the value and amount of the assets, liabilities,
profits, or losses of the Company or any other facts pertinent to the existence and amount of assets. The Managers shall not be required to devote full time to the management of the Company’s business, but only so much time as shall be
necessary or appropriate for the proper management of such business. 
 18. Officers. The Board may appoint such
officers of the Company as the Board deems appropriate. The initial offices are the offices of Chief Executive Officer, President, Chief Financial Officer, Treasurer and Secretary. The initial Chief Executive Officer shall be Sean McDevitt. The
initial Chief Financial Officer, Treasurer and Secretary shall be James Froisland. Each Officer appointed by the Board shall hold office until a successor is appointed or until such officer’s earlier death, resignation, expulsion or removal by
the Board. 

  
 3 

 19. Chief Executive Officer. The Chief Executive Officer shall be in charge of
the general affairs and activities of the Company. In the case that any office identified below is vacant, the Chief Executive Officer may exercise the power of that office. The Chief Executive Officer also shall have the duties and
responsibilities, and exercise all functions, as the Board may determine. 
 20. President The President shall,
subject to the control of the Board, have general supervision of the business of the Company and shall see that all orders and resolutions of the Board are carried into effect. He or she shall execute all bonds, mortgages, contracts and other
instruments of the Company requiring a seal, under the seal of the Company, except where required or permitted by law to be otherwise signed and executed and except that the other officers of the Company may sign and execute documents. The President
shall also perform such other duties and may exercise such other powers as from time to time may be assigned to him or her by the Board. 
 21. Chief Financial Officer. The Chief Financial Officer shall have the duties and responsibilities, and exercise all functions, as the Board may determine. 

22. Treasurer. The Treasurer shall have the custody of the Company’s funds and securities and shall keep full and
accurate accounts of receipts and disbursements in books belonging to the Company and shall deposit all moneys and other valuable effects in the name and to the credit of the Company in such depositories as may be designated by the Board. The
Treasurer shall disburse the funds of the Company as may be ordered by the Board, taking proper vouchers for such disbursements, and shall render to the Chief Executive Officer and the Board, at its regular meeting, or when the Board so requires, an
account of all his or her transactions as Treasurer and of the financial condition of the Company. If required by the Board, the Treasurer shall give the Company a bond in such sum and with such surety or sureties as shall be satisfactory to the
Board for the faithful performance of the duties of his or her office and for the restoration to the Company, in case of his or her death, resignation, retirement or removal from office, of all books, papers, vouchers, money and other property of
whatever kind in his or her possession or under his or her control belonging to the Company. 
 23. Secretary. The
Secretary shall attend all meetings of the Board and record all the proceedings thereat in a book or books to be kept for that purpose; the Secretary shall also perform like duties for the standing committees when required. The Secretary shall give,
or cause to be given, notice of all meetings and special meetings of the Board, and shall perform such other duties as may be prescribed by the Board or Chief Executive Officer, under whose supervision he or she shall be. If the Secretary shall be
unable or shall refuse to cause to be given notice of all meetings and special meetings of the Board, then either the Board or the Chief Executive Officer may choose another officer to cause such notice to be given. The Secretary shall have custody
of the seal of the Company and the Secretary shall have authority to affix the same to any instrument requiring it and when so affixed, it may be attested by the signature of the Secretary. The Board may give general authority to any other officer
to affix the seal of the Company and to attest the affixing by his or her signature. The Secretary shall see that all hooks, reports, statements, certificates and other documents and records required by law to be kept or filed are properly kept or
filed, as the case may be. 

  
 4 

 24. Other Officers. Such other officers as the Board may choose shall perform
such duties and have such powers as from time to time may be assigned to them by the Board. The Board may delegate to any other officer of the Company the power to choose such other officers and to prescribe their respective duties and powers.

 25. Dissolution. The Company shall dissolve and its affairs shall be wound up at such time, if any, as the
Member may elect. No other event will cause the Company to dissolve. 
 26. Governing Law. THIS AGREEMENT IS
GOVERNED BY AND SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE (EXCLUDING ITS CONFLICT-OF-LAWS RULES). 

27. Amendments. This Agreement may be modified, altered, supplemented or amended at any time by a written agreement
executed and delivered by the Member. 
 [Signature Page to Follow]. 

 IN WITNESS WHEREOF, the undersigned, being the Member of the Company, has caused this
Limited Liability Company Agreement to be effective as of the 18th day of February, 2011. 
  

					
	INFUSYSTEM HOLDINGS, INC.
			
		 	 By:
	 	
 

  
 6 

 CERTIFICATE OF GOOD STANDING 
 [See attached.] 

							
		 	 Delaware
	  	PAGE 1	  	
		 	The First State	  		  	

  
 I, JEFFREY W. BULLOCK,
SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY “IFC LLC” IS DULY FORMED UNDER THE LAWS OF THE STATE OF DELAWARE AND IS IN GOOD STANDING AND HAS A LEGAL EXISTENCE SO FAR AS THE RECORDS OF THIS OFFICE SHOW, AS OF THE
TWENTY-SECOND DAY OF MARCH, A.D. 2011. 
 AND I DO HEREBY FURTHER CERTIFY THAT THE ANNUAL TAXES HAVE NOT BEEN ASSESSED TO
DATE. 
  

							
		  	
 

	  		  	
 

		  	  		  	Jeffrey W. Bullock, Secretary of State.
	4941540 8300	  	  		  	 AUTHENTICTION: 8638662

	  
 110324091
	  	  		  	  
 DATE: 03-22-11

	 You may verify this certificate online

at corp.delaware.grov/authver.shtml
	  		  		  	

 WRITTEN CONSENT OF THE BOARD OF MANAGERS OF THE COMPANY 

[See attached.] 

 EXECUTION VERSION 

IFC LLC 

UNANIMOUS WRITTEN CONSENT OF THE BOARD OF MANAGERS 
 April 1, 2011 
 The undersigned, being the managers (the
“Board”) of IFC LLC, a Delaware limited liability company (the “Company”), in accordance with the limited liability company agreement of the Company, by written consent in lieu of a meeting, as evidenced by the
signatures set forth below, hereby adopt the following resolutions and agree that adoption of such resolutions shall be valid and binding with the same force and effect as though such resolutions had been adopted at a meeting of the Board duly
noticed, called and held in accordance with law, with a full quorum present and acting throughout, and directs that this document be delivered to the Company for inclusion in the minutes and filing with the official records of the Company:

 WHEREAS, the Company is wholly owned by InfuSystem Holdings, Inc.; 

WHEREAS, the Board has deemed it advisable and in the Company’s best interest that the Company takes such
actions as hereinafter set forth in these resolutions; 
 WHEREAS, InfuSystem Holdings, Inc. has entered
into that certain Credit Agreement dated as of June 15, 2010 and amended as of the date hereof (the “Credit Agreement”; capitalized terms used but not otherwise defined herein shall have the meanings assigned to such terms in
the Credit Agreement) by and among (i) InfuSystem Holdings, Inc., InfuSystem, Inc., and First Biomedical, Inc. (the “Borrowers”), (ii) Bank of America, N.A., as Administrative Agent (the “Agent”), and
(iii) the Lenders (as defined therein) from time to time party thereto; 
 WHEREAS, in connection
with the Credit Agreement, InfuSystem Holdings, Inc. has entered into (i) that certain Security Agreement dated as of June 15, 2010 by and among InfuSystem Holdings, Inc., InfuSystem, Inc., and First Biomedical, Inc., as grantors and the
Agent (the “Security Agreement”) and (ii) that certain Pledge Agreement dated as of June 15, 2010 by and among InfuSystem Holdings, Inc., InfuSystem, Inc., and First Biomedical, Inc., as pledgors, and the Agent;

 WHEREAS, in connection with the Credit Agreement, the Lenders and the other Secured Parties (as defined
in the Security Agreement) require that the Company enter into (i) that certain Subsidiary Guaranty dated as of the date hereof (the “Subsidiary Guaranty”), by and between the Company and the Agent, pursuant to which the
Company will guaranty all Obligations (as defined in the Credit Agreement) of the Borrowers; (ii) that certain Joinder to Security Agreement dated as of the date hereof (the “Joinder to Security Agreement”), by and between the
Company, the Borrowers and the Agent; and (iii) that certain Joinder to Pledge Agreement dated as of the date hereof (the “Joinder to Pledge Agreement” and, together with the Subsidiary Guaranty and the Joinder to Security
Agreement, the “Security Documents”), by and between the Company and the Agent, pursuant to which it is proposed, among other things, that the Company (along with each of the other Borrowers and Guarantors) pledges substantially all
of its assets; 

 WHEREAS, it is in the best interest of the Company to guarantee the
Obligations of the other Loan Parties and to grant such security interest and pledge such assets; and 
 WHEREAS,
the Board has determined that the transactions contemplated by the Credit Agreement, the Security Documents and the other Loan Documents to which the Company is a party are in the best interest of the Company and to authorize the officers of the
Company to take any and all such actions as they may deem appropriate to effect the transactions; 
 NOW, THEREFORE, IT IS
HEREBY: 
 RESOLVED, that the Company is hereby authorized and directed to perform all obligations of the Company
pursuant to the Loan Documents to which it is a party; and it is 
 FURTHER RESOLVED, that any of the chief
executive officer (CEO), the chief financial officer (CFO), the president, the vice president, the secretary or the treasurer or any other officer of the Company (each an “Officer” and collectively the “Officers”)
is authorized and directed on behalf and in the name of the Company to (i) execute and deliver the Security Documents, the other Loan Documents to which the Company is a party, and all other documents associated or contemplated by the Loan
Documents, providing for, among other things, the making by the Agent, any Lender or Lenders to the Borrowers of loans or other extensions of credit upon the terms and conditions set forth in the Credit Agreement, and for the payment by the Company,
the other Guarantors or the Borrowers of interest, fees, costs and expenses as provided therein, in such forms as may be acceptable to such Officers, such Officers’ execution and delivery to be conclusive evidence that the same have been
authorized hereby, (ii) guaranty the full and prompt payment of all of the obligations of the Borrowers under the Credit Agreement and the other Loan Documents related thereto, and (iii) sell, transfer, lease, assign, hypothecate, set
over, grant security interests in, mortgage or pledge any or all of the assets and properties of the Company, real, personal, or mixed, tangible or intangible, now owned or hereafter acquired as security or otherwise pursuant to the Credit
Agreement, Security Documents and the other Loan Documents to which the Company is a party; and it is 
 FURTHER
RESOLVED, that the Officers of the Company are, and each of the Officers acting alone is, hereby authorized and empowered, in the name and on behalf of the Company, to (i) approve any changes or modifications in the forms of the Security
Documents and the other Loan Documents heretofore approved, (ii) make such payments, execute, deliver and perform or cause to be executed, delivered and performed all such further agreements, amendments, supplements, extensions, certificates
and other documents and instruments, all in forms approved by them in their sole discretion, such Officers’ execution of any such document to be conclusive evidence of their approval thereof and (iii) take or cause to be taken all such
further actions as they or any of them may deem necessary or advisable to consummate the transactions contemplated by the Credit Agreement, the Security Documents and the other Loan Documents; and it is 

 FURTHER RESOLVED, that any Officer of the Company is hereby authorized and
directed, on behalf and in the name of the Company, to cause the transactions contemplated by these resolutions to be consummated and performed in the manner provided therein and from time to time to do, or cause to be done, all such other acts or
things, and to execute and deliver all such agreements, instruments, certificates and other documents as such Officer acting shall deem in his or her sole discretion desirable to carry out the purposes and intents of any of the foregoing
resolutions; and it is 
 FURTHER RESOLVED, that the authority given hereunder shall be deemed retroactive, and
any and all acts relating to the subject matter of the foregoing resolutions by an officer of the Company prior to the passage of these resolutions are hereby ratified and approved; and it is 

FURTHER RESOLVED, that the signing by an Officer of the Company of any of the documents or instruments referred to in, or
contemplated by, the foregoing resolutions or the taking by him or her of any actions to carry out the foregoing shall conclusively establish the Board’s approval of the form of any such documents or instruments signed by him or her and of the
actions referred to therein or contemplated thereby and also the Board’s determination that such documents, instruments and actions are necessary, desirable or appropriate; and it is 

FURTHER RESOLVED, that any acts of an Officer of the Company, and any person or persons designated and authorized to act
by the Board on behalf of the Company, which acts would have been authorized by the foregoing resolutions except that such acts were taken prior to the adoption of such resolutions, are hereby severally ratified, confirmed, approved and adopted as
the acts of the Company; and it is 
 FURTHER RESOLVED, that this Written Consent of the Board may be executed
and delivered by facsimile or electronic photocopy (e.g., “.pdf’) and upon such delivery the facsimile or .pdf signature will be deemed to have the same effect as if the original signature had been delivered. 

(The remainder of this page is intentionally left blank) 

 IN WITNESS WHEREOF, the undersigned has executed this Unanimous Written Consent of the Board
of Managers as of the date first set forth above. 
  

			
	 By:
	 	Sean McDevitt

 [Signature Page to
Unanimous Written Consent of the Board of Managers of IFC LLCJArrangement Agreement

 Exhibit 10.1 
 PARAMETRIC TECHNOLOGY CORPORATION 
 AND 

PTC NS ULC 

AND 

MKS INC. 
  

 
 ARRANGEMENT
AGREEMENT 
  
  

April 6, 2011 
  

 
 Form 8-K Exhibit Notice: 

This Agreement is included as an exhibit to the Form 8-K to provide information regarding its terms. Except for its status as the
contractual document between the parties with respect to the share purchase described herein, it is not intended to provide factual information about the parties. The representations and warranties contained in this Agreement were made only for
purposes of this agreement and as of specific dates, were solely for the benefit of the parties hereto, and may be subject to limitations agreed by the contracting parties, including being qualified by disclosures between the parties. These
representations and warranties may have been made for the purposes of allocating contractual risk between the parties to the agreement instead of establishing these matters as facts, and may be subject to standards of materiality applicable to the
contracting parties that differ from those applicable to investors. They should be viewed by investors in this context. 

Schedule C, Voting Support Agreement is omitted and is filed in its entirety as executed as Exhibit 10.2 to this Form 8-K.

 TABLE OF CONTENTS 

 

							
	 	  	Page	 
		
	ARTICLE 1 INTERPRETATION	  	 	1	  
	 1.1      Definitions
	  	 	1	  
	 1.2      Interpretation Not Affected by Headings
	  	 	17	  
	 1.3      Number and Gender
	  	 	17	  
	 1.4      Date for Any Action
	  	 	17	  
	 1.5      Currency
	  	 	17	  
	 1.6      Accounting Matters
	  	 	17	  
	 1.7      Knowledge
	  	 	17	  
	 1.8      Disclosure Letter
	  	 	18	  
	 1.9      Schedules
	  	 	18	  
		
	 ARTICLE 2 THE ARRANGEMENT
	  	 	18	  
	 2.1      Arrangement
	  	 	18	  
	 2.2      Interim Order
	  	 	18	  
	 2.3      MKS Meeting
	  	 	19	  
	 2.4      MKS Circular
	  	 	19	  
	 2.5      Preparation of Filings
	  	 	21	  
	 2.6      Final Order
	  	 	21	  
	 2.7      Court Proceedings
	  	 	21	  
	 2.8      Articles of Arrangement and Effective Date
	  	 	22	  
	 2.9      Treatment of MKS Options and MKS RSUs
	  	 	22	  
	 2.10    Payment of Consideration
	  	 	24	  
	 2.11    Announcement and Shareholder Communications
	  	 	24	  
	 2.12    Withholding Taxes
	  	 	25	  
	 2.13    List of Shareholders
	  	 	25	  
	 2.14    PTC Guarantee
	  	 	25	  
		
	 ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF MKS
	  	 	26	  
	 3.1      Representations and Warranties
	  	 	26	  
	 3.2      Survival of Representations and Warranties
	  	 	50	  
		
	 ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF PTC
	  	 	50	  
	 4.1      Representations and Warranties
	  	 	50	  
	 4.2      Survival of Representations and Warranties
	  	 	53	  
		
	 ARTICLE 5 COVENANTS
	  	 	53	  
	 5.1      Covenants of MKS Regarding the Conduct of
Business
	  	 	53	  
	 5.2      Covenants of MKS Relating to the Arrangement
	  	 	57	  
	 5.3      Covenants of PTC Relating to the Arrangement
	  	 	58	  
	 5.4      Mutual Covenants
	  	 	59	  
	 5.5      Pre-Acquisition Reorganization
	  	 	61	  
	 5.6      Cash Deposit
	  	 	63	  

 TABLE OF CONTENTS 

(continued) 
  

					
	 	  	Page	 
		
	 ARTICLE 6 CONDITIONS
	  	 	63	  
	 6.1      Mutual Conditions Precedent
	  	 	63	  
	 6.2      Additional Conditions Precedent to the Obligations of PTC
	  	 	63	  
	 6.3      Additional Conditions Precedent to the Obligations of MKS
	  	 	65	  
	 6.4      Satisfaction of Conditions
	  	 	65	  
		
	 ARTICLE 7 ADDITIONAL AGREEMENTS
	  	 	65	  
	 7.1      MKS Non-Solicitation
	  	 	65	  
	 7.2      Access to Information; Confidentiality
	  	 	71	  
	 7.3      Notices of Certain Events
	  	 	71	  
	 7.4      Insurance and Indemnification
	  	 	72	  
		
	 ARTICLE 8 TERM, TERMINATION, AMENDMENT AND WAIVER
	  	 	73	  
	 8.1      Term
	  	 	73	  
	 8.2      Termination
	  	 	73	  
	 8.3      Expenses and Termination Payments
	  	 	75	  
	 8.4      Amendment
	  	 	77	  
	 8.5      Waiver
	  	 	78	  
		
	 ARTICLE 9 GENERAL PROVISIONS
	  	 	78	  
	 9.1      Privacy
	  	 	78	  
	 9.2      Notices
	  	 	79	  
	 9.3      Governing Law
	  	 	80	  
	 9.4      Appointment of Agent for Service
	  	 	80	  
	 9.5      Time of Essence
	  	 	80	  
	 9.6      Entire Agreement, Binding Effect and Assignment
	  	 	80	  
	 9.7      No Liability
	  	 	81	  
	 9.8      Severability
	  	 	81	  
	 9.9      Rules of Construction
	  	 	81	  
	 9.10    Counterparts, Execution
	  	 	81	  
		
	 SCHEDULE A – PLAN OF ARRANGEMENT
	  			
	 SCHEDULE B – ARRANGEMENT RESOLUTION
	  			
	 SCHEDULE C – VOTING SUPPORT AGREEMENT
	  			

 ARRANGEMENT AGREEMENT 

THIS ARRANGEMENT AGREEMENT dated April 6, 2011, 
 BETWEEN: 
 PARAMETRIC TECHNOLOGY CORPORATION, a corporation existing
under the laws of The Commonwealth of Massachusetts (“PTC”) 
 - and - 

PTC NS ULC, an unlimited liability company existing under the laws of Nova Scotia (“Acquireco”) 

- and - 
 MKS
INC., a corporation existing under the laws of Ontario (“MKS”) 
 RECITALS: 

 

	A.	PTC wishes to indirectly acquire, through Acquireco, all of the MKS Common Shares. 

 

	B.	The Parties intend to carry out the transactions contemplated in this Agreement by way of an arrangement under the provisions of the OBCA. 

 

	C.	The MKS Board has determined, after receiving financial and legal advice and following the receipt and review of a unanimous recommendation from the MKS Special
Committee, that the Arrangement is fair to MKS Common Shareholders and that it is in the best interests of MKS to enter into this Agreement providing for the Arrangement, and the MKS Board has unanimously resolved to recommend that the MKS Common
Shareholders vote their MKS Common Shares in favour of the Arrangement, all subject to the terms and the conditions contained in this Agreement. 

  

	D.	PTC has entered into the Voting Support Agreement with the Supporting Common Shareholders, pursuant to which, among other things, such MKS Common Shareholders have
agreed, subject to the terms and conditions thereof, to vote the MKS Common Shares held by them in favour of the Arrangement. 

 THIS AGREEMENT WITNESSES THAT in consideration of the covenants and agreements herein contained and other good and valuable consideration (the receipt and sufficiency of which are hereby
acknowledged), the Parties hereto covenant and agree as follows: 
 ARTICLE 1 

INTERPRETATION 
  

	1.1	Definitions 

 In this
Agreement, unless the context otherwise requires: 

 “1933 Act” means the United States Securities Act of 1933, as
amended; 
 “1934 Act” means the United States Securities Exchange Act of 1934, as amended; 

“Acquisition Proposal” means, other than the transactions contemplated by this Agreement and other than any transaction
involving only MKS and/or one or more of its wholly-owned Subsidiaries, any offer, communication, public announcement, or proposal, expression of interest or inquiry (conditional or unconditional) from any Person or group of Persons, whether or not
in writing and whether or not delivered to the shareholders of MKS, after the date hereof relating to: (a) any acquisition or purchase, direct or indirect, through one or more related transactions, of: (i) the assets of MKS and/or one or
more of the MKS Subsidiaries that, individually or in the aggregate, constitute 20% or more of the consolidated assets of MKS and the MKS Subsidiaries, taken as a whole, or which contribute 20% or more of the consolidated revenue of MKS and the MKS
Subsidiaries, taken as a whole, or (ii) 20% or more of any voting or equity securities of MKS or any one or more of the MKS Subsidiaries that, individually or in the aggregate, contribute 20% or more of the consolidated revenues or constitute
20% or more of the consolidated assets of MKS and the MKS Subsidiaries, taken as a whole; (b) any take-over bid, tender offer or exchange offer that, if consummated, would result in such Person or group of Persons beneficially owning 20% or
more of any class of voting or equity securities of MKS; or (c) a plan of arrangement, merger, amalgamation, consolidation, share exchange, business combination, reorganization, recapitalization, liquidation, dissolution or other similar
transaction involving MKS and/or any MKS Subsidiary whose assets or revenues, individually or in the aggregate, constitute 20% or more of the consolidated assets or revenues, as applicable, of MKS and the MKS Subsidiaries, taken as a whole;

 “affiliate” has the meaning ascribed thereto in the National Instrument 45-106 – Prospectus and
Registration Exemptions; 
 “Aggregate Consideration Amount” means that cash amount equal to the product of
$26.20 multiplied by the number of MKS Common Shares that are issued and outstanding immediately prior to the Effective Time; 

“Agreement” means this arrangement agreement, including all schedules annexed hereto, together with the MKS Disclosure
Letter, as the same may be amended, supplemented or otherwise modified from time to time in accordance with the terms hereof; 

“Application Software” has the meaning ascribed thereto in Subsection 3.1(m)(iv); 

“Arrangement” means the arrangement involving, among others, PTC, Acquireco and MKS under Section 182 of the OBCA on
the terms and subject to the conditions set out in the Plan of Arrangement, subject to any amendments or 

  
 - 2 -

 
variations thereto made in accordance with Section 8.4 hereof or Section 6.1 of the Plan of Arrangement or made at the direction of the Court in the Final Order; 

“Arrangement Resolution” means the special resolution of the MKS Common Shareholders approving the Plan of Arrangement
which is to be considered at the MKS Meeting and shall be substantially in the form and content of Schedule “B” hereto, and any amendments or variations thereto made in accordance with the provisions of this Agreement or made at the
direction of the Court in the Interim Order; 
 “Articles of Arrangement” means the articles of arrangement of
MKS to be filed with the Director in compliance with the OBCA in connection with the Arrangement after the Final Order is made, which shall be in form and content satisfactory to MKS and PTC, each acting reasonably; 

“Authorization” means any authorization, order, permit, approval, grant, licence, registration, consent, right,
notification, condition, franchise, privilege, certificate, judgment, writ, injunction, award, determination, direction, decision, decree, bylaw, rule or regulation, in each case having the force of Law, and includes any Environmental Permit;

 “Available Cash” has the meaning ascribed thereto in Subsection 4.1(e); 

“Bundeskartellamt” means the German Federal Cartel Office appointed under the German Competition Act; 

“business day” means any day, other than a Saturday, a Sunday or a statutory or civic holiday in Toronto, Ontario or
Boston, Massachusetts; 
 “Computer Systems” means all computer hardware, peripheral equipment, software and
firmware, technology infrastructure and other computer systems and services that are used by MKS to receive, store, process or transmit data; 
 “Confidentiality Agreement” means the confidentiality agreement dated November 29, 2010, as amended on March 7, 2011, between MKS and PTC; 

“Confirmation Commitment Letter” has the meaning ascribed thereto in Subsection 4.1(e); 

“Consideration” means the cash consideration to be received by the MKS Common Shareholders pursuant to the Plan of
Arrangement as consideration for each MKS Common Share outstanding immediately prior to the Effective Time, consisting of $26.20 cash per MKS Common Share; 
 “Contract” means any contract, agreement, license, franchise, lease, arrangement, commitment, joint venture, partnership or other right or obligation (written or oral) to which MKS or any
MKS Subsidiary is a party or by which MKS or any MKS Subsidiary is bound or to which any of their respective properties or assets is subject; 

  
 - 3 -

 “Court” means the Ontario Superior Court of Justice (Commercial List);

 “Credit Facilities” has the meaning ascribed thereto in Subsection 4.1(e); 

“Currency Exchange Rate” means the daily noon rate of exchange on the Effective Date for United States dollars expressed
in Canadian dollars as reported by the Bank of Canada or, in the event such daily noon rate of exchange is not available, such rate of exchange on such date for United States dollars expressed in Canadian dollars as may be deemed by PTC to be
appropriate for such purpose; 
 “Debt Financing” has the meaning ascribed thereto in Subsection 4.1(e);

 “Depositary” means any trust company, bank or financial institution agreed to in writing among the Parties
for the purpose of, among other things, distributing the Consideration to MKS Common Shareholders and such amount of cash to holders of MKS Options and MKS RSUs as they are entitled to under the Arrangement, each in accordance with the Plan of
Arrangement; 
 “Director” means the Director appointed under Section 278 of the OBCA acting under the
OBCA; 
 “Dissent Rights” means the rights of dissent granted to registered MKS Common Shareholders in respect
of the Arrangement described in Article 4 of the Plan of Arrangement; 
 “Effective Date” means the date the
Arrangement becomes effective under the OBCA; 
 “Effective Time” has the meaning ascribed thereto in the Plan
of Arrangement; 
 “Environmental Laws” means all Laws imposing obligations, responsibilities, liabilities or
standards of conduct for or relating to: (a) the regulation or control of pollution, contamination, activities, materials, substances or wastes in connection with or for the protection of human health or safety, the environment or natural
resources (including climate, air, surface water, groundwater, wetlands, land surface, subsurface strata, wildlife, aquatic species and vegetation); or (b) the use, generation, disposal, Release, threatened Release, treatment, processing,
recycling, handling, transport, distribution, destruction, transfer, import, export or sale of or exposure to Hazardous Substances; 
 “Environmental Permits” means all Permits or program participation requirements with or from any Governmental Entity under any Environmental Laws; 

“ERISA” means the United States Employee Retirement Income Security Act of 1974, as amended; 

“ERISA Affiliate” means (i) any corporation included with MKS in a controlled group of corporations within the
meaning of Section 414(b) of the IRC; (ii) any trade or business (whether or not incorporated) that is under common control with 

  
 - 4 -

 
MKS within the meaning of Section 414(c) of the IRC; (iii) any member of an affiliated service group of which MKS is a member within the meaning of Section 414(m) of the IRC; or
(iv) any other person or entity treated as aggregated with MKS under Section 414(o) of the IRC; 
 “Exchange
Ratio” has the meaning ascribed thereto in the Plan of Arrangement; 
 “Excluded MKS Subsidiaries”
means, collectively, Mortice Kern Systems International SRL and MKS Software ApS; 
 “Final Order” means the
final order of the Court pursuant to Section 182(5)(f) of the OBCA, in a form acceptable to MKS and PTC, each acting reasonably, approving the Arrangement, as such order may be amended by the Court (with the consent of both MKS and PTC, each
acting reasonably) at any time prior to the Effective Date or, if appealed, then, unless such appeal is withdrawn, the final order of the Court on appeal approving the Arrangement or affirming or amending the order of the Court approving the
Arrangement in a form acceptable to MKS and PTC each acting reasonably; 
 “GAAP” means accounting principles
generally accepted in Canada applicable to public companies at the relevant time; 
 “German Competition Act”
means The Act Against Restraints of Competition of July 27, 1957 (Gesetz gegen Wettbewerbsbeschränkungen), as amended from time to time; 
 “German Competition Act Approval” means, in each case in respect of the Arrangement, that (a) the Bundeskartellamt shall have provided clearance, or (b) the applicable waiting
period under the German Competition Act shall have expired; 
 “Governmental Entity” means: (a) any
multinational, federal, provincial, territorial, state, regional, municipal, local or other government, governmental or public department, central bank, court, tribunal, arbitral body, commission, board, bureau, agency or entity, domestic or
foreign; (b) any stock exchange, including the TSX and NASDAQ; (c) any subdivision, agent, commission, board or authority of any of the foregoing; or (d) any quasi-governmental or private body, including any tribunal, commission,
regulatory agency or self-regulatory organization, in each case exercising any regulatory, expropriation or taxing authority under or for the account of any of the foregoing; 
 “Hazardous Substance” means any pollutant, contaminant, waste or chemical or any toxic, radioactive, ignitable, corrosive, reactive or otherwise hazardous or deleterious substance, waste
or material, including hydrogen sulphide, arsenic, cadmium, copper, lead or lead-containing materials, mercury, petroleum, radioactive materials, polychlorinated biphenyls, asbestos, pesticides, mould and urea-formaldehyde insulation, and any other
material, substance, pollutant or contaminant regulated or defined pursuant to, or that could result in liability under, any Environmental Law; 

  
 - 5 -

 “IFRS” means International Financial Reporting Standards; 

“including” means including without limitation, and “include” and “includes” have a
corresponding meaning; 
 “Intellectual Property Rights” means: (a) all Canadian, United States,
international and foreign patents and applications therefor and all reissues, divisions, divisionals, renewals, extensions, provisionals, continuations and continuations-in-part thereof, and all patents, applications, documents and filings claiming
priority to or serving as a basis for priority thereof (“Patents”); (b) all inventions (whether or not patentable), invention disclosures, improvements, trade secrets, proprietary information, business methods, technical data
and know how; (c) all copyrights, copyright registrations and applications therefor, and all other rights corresponding thereto throughout the world (“Copyrights”); (d) all industrial designs and any registrations and
applications therefor throughout the world; (e) all trade names, service names, logos, common law trademarks and service marks, trademark and service mark registrations and applications therefor throughout the world
(“Trademarks”); (f) all moral rights of authors, however denominated, throughout the world; (g) all Web addresses, domain names and numbers, uniform resource locators and other names and locators associated with the
Internet (“Domain Names”); and (h) any similar or equivalent rights to any of the foregoing anywhere in the world; 
 “Interim Order” means the interim order of the Court contemplated by Section 2.2 of this Agreement and made pursuant to Section 182(5) of the OBCA, in a form acceptable to MKS
and PTC, each acting reasonably, providing for, among other things, the calling and holding of the MKS Meeting, as the same may be amended by the Court with the consent of MKS and PTC, each acting reasonably; 

“IRC” means the United States Internal Revenue Code of 1986, as amended; 

“IRS” means the Internal Revenue Service of the United States; 

“Law” or “Laws” means all laws (including statutory or common law or other law), by-laws, statutes,
rules, regulations, principles of law and equity, orders, rulings, ordinances, judgements, injunctions, determinations, awards, decrees or other requirements, whether domestic or foreign, and the terms and conditions of any Permit of or from any
Governmental Entity in each case having the force of law and the term “applicable” with respect to such Laws and in a context that refers to a Party, means such Laws as are applicable to such Party and/or its Subsidiaries or their
business, undertaking, property or securities and emanate from a Person having jurisdiction over the Party and/or its Subsidiaries or its or their business, undertaking, property or securities; 

“Liens” means any hypothecs, mortgages, pledges, assignments, liens, charges, security interests, encumbrances and
adverse rights or claims, or encumbrances of any kind, whether contingent or absolute, and any agreement, option, right or privilege (whether by Law, contract or otherwise) capable of becoming any of the foregoing; 

  
 - 6 -

 “Mailing Deadline” means April 26, 2011 or such later date as may be
agreed to in writing by the Parties or adjusted in accordance with Subsection 2.4(b); 
 “Malware” has the
meaning ascribed thereto in Subsection 3.1(l)(x); 
 “Material Contracts” means any Contract: (a) that if
terminated or modified or if it ceased to be in effect, would have a MKS Material Adverse Effect; (b) under which MKS or any MKS Subsidiary has directly or indirectly guaranteed any liabilities or obligations of a third party (other than
endorsements for collection or the liabilities or obligations of a MKS Subsidiary in the ordinary course of business); (c) relating to indebtedness for borrowed money, whether incurred, assumed, committed, guaranteed or secured by any asset;
(d) providing for the establishment, investment in, organization or formation of any joint ventures or general or limited partnerships; (e) under which MKS or any MKS Subsidiary is obligated to make payments in excess of $250,000 or
expects to receive payments in excess of $500,000 over the remaining term of the Contract; (f) that limits or restricts MKS or any MKS Subsidiary in any material respect from engaging in any line of business or from carrying on business in any
geographic area or that creates an exclusive dealing arrangement or right of first offer or refusal in respect of any asset or Intellectual Property Right of MKS or any MKS Subsidiary; (g) that is a collective bargaining agreement, a labour
union contract or any other memorandum of understanding or other agreement with a union representing the employees of MKS or any MKS Subsidiary; (h) with a Governmental Entity; (i) that is listed in Schedule 3.1(n)(iii) to the MKS
Disclosure Letter; (j) that contains any Most Favoured Customer Provision which would entitle a customer to a refund or price adjustment of $1,000,000 or more; (k) that provides for an unlimited number of licenses to any MKS Owned IP for a
non-renewable period not exceeding 12 months; (l) that provides for ownership by any third party of Intellectual Property Rights created or developed by or on behalf of MKS or any MKS Subsidiary; (m) that provides for an exclusive license
to any MKS Owned IP; (n) that commits MKS or any MKS Subsidiary to develop or deliver future features or functionality of the Software Products other than in the performance of maintenance or support obligations thereunder; or (o) that
requires the consent of the other party to the Contract to a change in the voting control (in one or more transactions and in any form of transaction) of MKS, where the failure to obtain such consent would result in a MKS Material Adverse Effect;

 “material change” has the meaning ascribed thereto in the Securities Act; 

“Meeting Deadline” means June 6, 2011 or such later date as may be agreed to in writing by the Parties or adjusted
pursuant to Subsection 2.4(b); 
 “MI 61-101” means Multilateral Instrument 61-101 – “Protection of
Minority Security Holders in Special Transactions”; 
 “misrepresentation” has the meaning ascribed
thereto in the Securities Act; 

  
 - 7 -

 “MKS 1995 Stock Option Plan” means the MKS Inc. Second Amended and Restated
1995 Stock Option Plan instituted on December 18, 1995, as amended and restated on September 25, 2007; 
 “MKS
2000 Stock Option Plan” means the MKS Inc. Third Amended and Restated 2000 Stock Option Plan instituted on July 31, 2000, as amended and restated on June 1, 2009; 

“MKS Benefit Plans” means any pension or retirement income plans or other employee compensation or benefit plans (but
excluding the payment of regular salary and wages), agreements, policies, programs, arrangements or practices, whether written or oral, funded or unfunded, insured or uninsured, registered or unregistered, including any “employee pension
benefit plan” (as defined in Section 3(2) of ERISA) and any “employee welfare benefit plan” (as defined in Section 3(1) of ERISA), which are maintained by or binding upon MKS or any MKS Subsidiary (including any ERISA
Affiliate) or for which MKS or any MKS Subsidiary (or ERISA Affiliate) has or is expected to have any liability or contingent liability, or pursuant to which payments are being made, or benefits are being provided to, or an entitlement to payments
or benefits exists with respect to, any of the employees or former employees, directors, officers, or independent contractors of MKS or any MKS Subsidiary (or ERISA Affiliate); 
 “MKS Board” means the board of directors of MKS as the same is constituted from time to time; 
 “MKS Cash” means the consolidated cash of MKS as at February 28, 2011; 
 “MKS Change in Recommendation” means (a) any withdrawal, modification or qualification (or a public proposal to withdraw, modify or qualify) in any manner adverse to PTC and/or the
consummation of the Arrangement, the recommendation of the MKS Board or any committee thereof, that the MKS Common Shareholders vote in favour of the Arrangement Resolution, or (b) any approval, acceptance or recommendation by the MKS Board of,
or public proposal by the MKS Board to approve, accept or recommend, or publicly taking a neutral position with respect to, any Acquisition Proposal other than the Arrangement (provided that publicly taking a neutral position or no position with
respect to an Acquisition Proposal until the fifth business day after receipt of an Acquisition Proposal shall not and shall be deemed not to be a MKS Change in Recommendation); 

“MKS Circular” means the notice of the MKS Meeting and accompanying management information circular, including all
schedules, appendices and exhibits thereto and enclosures therewith, to be sent to the MKS Common Shareholders in connection with the MKS Meeting, as amended, supplemented or otherwise modified from time to time; 

“MKS Common Shareholder Approval” has the meaning ascribed thereto in Subsection 2.2(c); 

  
 - 8 -

 “MKS Common Shareholders” means the registered and beneficial holders of
the MKS Common Shares; 
 “MKS Common Shares” means the common shares in the authorized capital of MKS;

 “MKS Data Room Information” means the information included in the electronic data room established and
maintained by MKS at https://services.intralinks.com, access to which has been provided to PTC, as at the second day immediately preceding the date of this Agreement, a copy of the index of which is attached to the MKS Disclosure Letter; 

“MKS Disclosure Letter” means the disclosure letter executed by MKS and delivered to PTC immediately prior to the
execution of this Agreement; 
 “MKS Employee Confidentiality/IP Agreement” means the current form of
confidentiality and invention assignment agreement for employees of MKS, a copy of which has been made available to PTC; 

“MKS Employee Share Purchase Plan” means the MKS Inc. Amended and Restated Employee Share Purchase Plan
instituted as of September 25, 2007; 
 “MKS Expense Payment” has the meaning ascribed
thereto in Subsection 8.3(b); 
 “MKS In-Licenses” has the meaning ascribed thereto in Subsection 3.1(l)(i)(B);

 “MKS IP” means all Intellectual Property Rights that are used or held for use by MKS or any of the MKS
Subsidiaries; 
 “MKS Leased Personal Property” has the meaning ascribed thereto in Subsection 3.1(k);

 “MKS Leased Real Property” has the meaning ascribed thereto in Subsection 3.1(j)(ii); 

“MKS Licensed Intellectual Property Rights” has the meaning ascribed thereto in Subsection 3.1(l)(i)(B); 

“MKS Licenses” has the meaning ascribed thereto in Subsection 3.1(l)(i)(C); 

“MKS Material Adverse Effect” means any one or more changes, effects, events, occurrences or states of fact, either
individually or in the aggregate, that (i) is, or would reasonably be expected to be, material and adverse to the properties and other assets, liabilities, business, operations, results of operations, capital, property, obligations
(whether absolute, accrued, conditional or otherwise) or financial condition of MKS and the MKS Subsidiaries taken as a whole, or (ii) will, or would reasonably be expected to, prevent or materially impair the ability of the Parties to
consummate the transactions contemplated hereby before 11:59 p.m. (Toronto time) on the Outside Date, in each case other than any change, effect, event, occurrence or state of fact relating to or arising in connection with:

  
 - 9 -

 
(a) any change, development, occurrence or event affecting the software industry in general, to the extent that it does not disproportionately affect MKS and the MKS Subsidiaries, taken as a
whole, in relation to other companies in the software industry, (b) the economy in general, or financial, currency or capital markets in general, in Canada, the United States, the United Kingdom, Germany, Japan or Singapore or elsewhere in the
world, to the extent that, other than in the case of Japan, they do not disproportionately affect MKS and the MKS Subsidiaries, taken as a whole, in relation to other companies in the industry in which MKS primarily operates, and in the case of
Japan, they do not disproportionately affect MKS and the MKS Subsidiaries, taken as a whole, in relation to other companies operating in Japan, (c) changes in Law (including any change in the interpretation or enforcement thereof) or in GAAP or
in accounting standards including the impact thereof on financial statements as at or for a period ending on a date prior to or after the date of this Agreement, (d) a change in the market price or trading volume of the MKS Common Shares,
provided that, without limiting the applicability of paragraphs (a) through (c) and (e) through (i), the causes underlying such failure may be taken into account in determining whether a “MKS Material Adverse Effect” has
occurred, (e) the announcement or pendency of this Agreement or the anticipated consummation of the Arrangement, or the completion of the transactions contemplated by this Agreement, including the impact thereof on relationships (contractual or
otherwise) with employees, customers, suppliers, distributors or partners, or the taking of any action or omission of any action that is required pursuant to this Agreement or undertaken pursuant to the written request of another Party, (f) any
act of war, sabotage or terrorism, or any escalation or worsening of any such act of war, sabotage or terrorism threatened or underway as of the date of this Agreement to the extent that it does not disproportionately affect MKS and the MKS
Subsidiaries, taken as a whole, in relation to other companies in the industry in which MKS primarily operates, (g) any natural disaster, including earthquakes, hurricanes, tornados, tsunamis or any nuclear accident to the extent that it does
not disproportionately affect MKS and the MKS Subsidiaries, taken as a whole, in relation to other companies in the industry in which MKS primarily operates, or (h) the earthquake, tsunami or nuclear incidents occurring in Japan in 2011, or
(i) the failure to meet internal projections or publicly announced revenue or earnings projections or any estimates of analysts, provided that in each case, without limiting the applicability of paragraphs (a) through (h), the causes
underlying such failure may be taken into account in determining whether a “MKS Material Adverse Effect” has occurred; provided, however, that references in this Agreement to dollar amounts are not intended to be and shall not be deemed to
be illustrative or interpretative for purposes of determining whether a “MKS Material Adverse Effect” has occurred; 

“MKS Meeting” means the special meeting of MKS Common Shareholders, including any adjournment or postponement thereof, to
be called and held in accordance with the Interim Order to consider the Arrangement Resolution and for any other purpose as may be set out in the MKS Circular (as agreed to with the prior written consent of PTC, such consent not to be unreasonably
withheld or delayed); 

  
 - 10 -

 “MKS Leased Personal Property” has the meaning ascribed thereto in
Section 3.1(k); 
 “MKS Options” means the outstanding options to purchase MKS Common Shares granted under
the MKS Stock Option Plans or listed in Schedule 3.1(g)(ii) of the MKS Disclosure Letter; 
 “MKS Out-Licenses”
has the meaning ascribed thereto in Subsection 3.1(l)(i)(C); 
 “MKS Owned IP” means all Intellectual Property
Rights owned by or filed in the name of MKS or any of the MKS Subsidiaries; 
 “MKS Owned Personal Property” has
the meaning ascribed thereto in Subsection 3.1(k); 
 “MKS Preferred Shares” means the Preferred Shares, Series
A in the authorized share capital of MKS; 
 “MKS Public Documents” means all forms, reports, schedules,
statements and other documents filed by MKS since May 1, 2008 with all applicable Governmental Entities pursuant to applicable Securities Laws; 
 “MKS RSU” means each outstanding restricted share unit granted under the MKS RSU Plan; 
 “MKS RSU Plan” means the MKS Inc. Restricted Share Unit Plan instituted on September 16, 2010; 
 “MKS Shareholder Rights Plan” means the Shareholder Rights Plan Agreement dated June 23, 2008 between MKS and CIBC Mellon Trust Company, as rights agent, as approved by the MKS
Common Shareholders on August 28, 2008, as amended from time to time; 
 “MKS Shares” means, collectively,
the MKS Common Shares and the MKS Preferred Shares; 
 “MKS Source Code” means all source code that is part of
the MKS Owned IP; 
 “MKS Special Committee” means the special committee of the MKS Board formed for the purpose
of reviewing various strategic alternatives available to MKS; 
 “MKS Stock Option Plans” means the MKS 1995
Stock Option Plan and the MKS 2000 Stock Option Plan; 
 “MKS Subsidiary” means each of the Subsidiaries of MKS
other than the Excluded MKS Subsidiaries; 

  
 - 11 -

 “MKS Termination Payment” has the meaning ascribed thereto in Subsection
8.3(b); 
 “MKS Termination Payment Event” has the meaning ascribed thereto in Subsection 8.3(c);

 “MKS Transfer Agent” means CIBC Mellon Trust Company, in its capacity as registrar and transfer agent for the
MKS Common Shares; 
 “Most Favoured Customer Provision” means a provision in a Contract that would customarily
be referred to as a “most favoured customer,” “most favoured nation,” or “most favoured pricing” provision, including any provision wherein MKS or any MKS Subsidiary: (a) warrants that MKS or any MKS Subsidiary is
not selling or licensing (or has not sold or licensed) products and/or services to any other customer or group of customers at prices or on other terms better than the pricing or terms being offered to the customer under such Contract, or
(b) covenants that, if MKS or a MKS Subsidiary enters into a Contract with any other customer providing such other customer with more favourable pricing or other terms than the terms under such Contract, the pricing or other terms under such
Contract will be made equivalent to or more favourable than such other customer’s more favourable Contract; 

“NASDAQ” means The NASDAQ Stock Market; 
 “OBCA” means the Business Corporations Act (Ontario) and the regulations made thereunder, as now in effect and as they may be promulgated or amended from time to time; 

“Obligations” has the meaning ascribed thereto in Subsection 2.14(a); 

“Open Source Materials” means all software that is distributed as “free software”, “open source
software” or under a similar licensing or distribution model, including, but not limited to, the GNU General Public License (GPL), GNU Lesser General Public License (LGPL), Mozilla Public License (MPL), the Artistic License (e.g., PERL), the
Netscape Public License, the Sun Community Source License (SCSL), the Sun Industry Standards License (SISL), or any other license described by the Open Source Initiative as set forth on www.opensource.org; 

“ordinary course of business”, or any similar reference, means, with respect to an action taken by a Person, that such
action is consistent with the past practices of such Person and is taken in the ordinary course of the normal day-to-day business and operations of such Person; 
 “Outside Date” means July 6, 2011, or such later date as may be agreed to in writing by the Parties; 
 “Parties” means MKS, PTC and Acquireco, and “Party” means any one of them; 

  
 - 12 -

 “Permit” means any license, permit, certificate, consent, order, grant,
approval, agreement, classification, restriction, registration or other Authorization of, from or required by any Governmental Entity; 
 “Permitted Encumbrances” means: (a) the reservations, limitations, provisos and conditions expressed in any original grant from the Crown and any statutory exceptions to title;
(b) inchoate or statutory Liens of contractors, subcontractors, mechanics, workers, suppliers, materialmen, warehousemen, carriers and others arising in the ordinary course of business in respect of the construction, maintenance, repair, or
operation or storage of real or immovable, or personal or movable property; (c) easements, servitudes, restrictions, restrictive covenants, party wall agreements, rights of way, licenses, permits and other similar rights in real or immovable
property (including easements, servitudes, rights of way and agreements for sewers, drains, gas and water mains or electric light and power or telephone, telecommunications or cable conduits, poles, wires and cables) that in each case do not
materially impact the use of such property as it is being used at the date hereof; (d) Liens for Taxes, rates, assessments or governmental charges or levies which relate to obligations not yet due and delinquent or that are being contested in
good faith by appropriate proceedings; (e) zoning and building by-laws and ordinances, regulations made by public authorities and other restrictions affecting or controlling the use, marketability or development of real or immovable property
that in each case do not materially impact the use of such property as it is being used at the date hereof; (f) agreements with any municipal, provincial or federal governments or authorities and any public utilities or private suppliers of
services, including subdivision agreements, development agreements, site control agreements, engineering, grading or landscaping agreements and similar agreements that in each case do not materially impact the use of such property as it is being
used at the date hereof; and (g) such other imperfections or irregularities of title or Liens as do not materially affect the use of the properties or assets subject thereto or affected thereby or otherwise materially impair business operations
at such properties; 
 “Person” includes an individual, partnership, association, body corporate, trustee,
executor, administrator, legal representative, government (including any Governmental Entity) or any other entity, whether or not having legal status; 
 “Plan of Arrangement” means the plan of arrangement of MKS, substantially in the form of Schedule “A” hereto, and any amendments or variations thereto made in accordance with
Section 8.4 hereof or Section 6.1 of the Plan of Arrangement or upon the direction of the Court in the Final Order with the consent of MKS and PTC, each acting reasonably; 

“Pre-Acquisition Reorganization” has the meaning ascribed thereto in Subsection 5.5(a); 

“Proposed Agreement” has the meaning ascribed thereto in Subsection 7.1(e)(I); 

“PTC Shares” means the shares of common stock, par value US$0.01 per share, of PTC; 

  
 - 13 -

 “Registered Intellectual Property” means all the following Intellectual
Property Rights owned or purported to be owned by MKS and any of the MKS Subsidiaries: (i) patents, including continuations, divisionals, continuations-in-part, or reissues of patent applications and patents issuing thereon,
(ii) registered trademarks, service marks, trade names, service names, brand names, trade dress rights, and logos, (iii) all registrations for Internet domain names, (iv) registered copyrights, and (v) all applications for
registration of the foregoing. 
 “Regulatory Approvals” means those sanctions, rulings, consents, orders,
exemptions, permits, clearances, declarations, filings and other approvals (including the waiver, expiry or lapse, without objection, of a prescribed time under a statute or regulation that states that a transaction may be implemented if a
prescribed time lapses or expires following the giving of notice without an objection being made) of Governmental Entities required to consummate the Arrangement, including German Competition Act Approval; 

“Release” means any release, spill, emission, leaking, pumping, pouring, emitting, emptying, escape, injection, deposit,
disposal, discharge, dispersal, dumping, leaching or migration of any Hazardous Substance in the indoor or outdoor environment, including the movement of Hazardous Substance through or in the air, soil, surface water, ground water or property;

 “Replacement Option” has the meaning ascribed thereto in Subsection 2.9(c); 

“Restricted Period” means a due diligence review period not to exceed five business days from the date MKS first provides
a Person (or any affiliate thereof or person acting jointly or in concert (as defined in the Securities Act) with such Person, or any employee, officer, director, agent or representative of such Person, affiliate or joint actor) making its first
Acquisition Proposal, with any access to any information regarding MKS or any MKS Subsidiaries in accordance with Subsection 7.1(d); 
 “SEC” means the United States Securities and Exchange Commission; 

“Securities Act” means the Securities Act (Ontario) and the rules, regulations and published policies made
thereunder, as now in effect and as they may be promulgated or amended from time to time; 
 “Securities Laws”
means the Securities Act, together with all other applicable provincial and territorial securities Laws, rules and regulations and published policies thereunder, as now in effect and as they may be promulgated or amended from time to time and
applicable U.S. Securities Laws; 
 “SEDAR” means the System for Electronic Document Analysis and Retrieval;

 “Software Products” means all software applications or solutions that MKS or any of the MKS Subsidiaries
currently markets, sells, licenses or supports (regardless whether provided as a hosted or licensed solution); 

  
 - 14 -

 “Subsidiary” has the meaning ascribed thereto in National Instrument 45-106
– Prospectus and Registration Exemptions; 
 “Superior Proposal” means an unsolicited bona
fide Acquisition Proposal made by a third party to MKS or its shareholders in writing after the date hereof: (i) to purchase or otherwise acquire, directly or indirectly, by means of a merger, take-over bid, amalgamation, plan of
arrangement, business combination, consolidation, recapitalization, liquidation, winding-up or similar transaction, all of the MKS Common Shares or all or substantially all of the assets of MKS and any of the MKS Subsidiaries; (ii) in respect
of which the MKS Board determines in its good faith judgment (after consultation with its external legal counsel and financial advisors) is reasonably capable of completion without undue delay, taking into account all legal, financial, regulatory
and other aspects of such Acquisition Proposal and the Person making such Acquisition Proposal; (iii) that is not subject to a due diligence and/or access condition; (iv) that did not result from a breach of Section 7.1 by MKS or its
representatives; (v) is made available to all MKS Common Shareholders, as the case may be, on the same terms and conditions; (vi) in respect of which the MKS Board determines in its good faith judgment (after consultation with its external
legal counsel and financial advisors) (A) is not subject to any financing condition and in respect of which any required financing to complete such Acquisition Proposal has been demonstrated to be available or is reasonably likely to be
obtained; (B) that failure to recommend such Acquisition Proposal to its shareholders would be inconsistent with its fiduciary duties under applicable Law; and (C) would, taking into account all of the terms and conditions of such
Acquisition Proposal, if consummated in accordance with its terms (but not assuming away any risk of non-completion), result in a transaction more favourable to its shareholders from a financial point of view than the Arrangement (after giving
effect to any changes to the terms and conditions of the Arrangement proposed by PTC in response to such Acquisition Proposal pursuant to Subsection 7.1(e)); 
 “Supporting Common Shareholders” means the holders of MKS Common Shares who have executed and delivered the Voting Support Agreement and who together hold 2,541,134 MKS Common Shares,
555,657 MKS Options and 16,954 MKS RSUs; 
 “Tangible Personal Property” means all machinery, equipment, tools,
furniture, office equipment, computer hardware, supplies, spare parts, vehicles and other items of tangible personal property of every kind owned or leased by MKS or a MKS Subsidiary or used in their respective businesses (wherever located and
whether or not carried on the books of MKS or a MKS Subsidiary), together with (i) all replacements thereof, additions and alterations thereto, and substitutions therefor, made between the date hereof and the Effective Time and (ii) any
express or implied warranty by the manufacturers or sellers or lessors of any item or component part thereof and all maintenance records and other documents relating thereto; 

  
 - 15 -

 “Tax Act” means the Income Tax Act (Canada) and the regulations made
thereunder, as now in effect and as they may be promulgated or amended from time to time; 
 “Taxes” includes
any taxes, duties, fees, premiums, assessments, imposts, levies, expansion fees and other charges of any kind whatsoever imposed by any Governmental Entity, including all interest, penalties, fines, additions to tax or other additional amounts
imposed by any Governmental Entity in respect thereof, and including those levied on, or measured by, or referred to as, income, gross receipts, profits, windfall, royalty, capital, transfer, land transfer, sales, goods and services, harmonized
sales, use, value-added, excise, stamp, withholding, business, franchising, property, development, occupancy, employer health, payroll, employment, health, social services, education and social security taxes, all surtaxes, all customs duties and
import and export taxes, countervail and anti-dumping, all licence, franchise and registration fees and all employment insurance, health insurance and pension plan premiums or contributions imposed by any Governmental Entity, and any transferee
liability in respect of any of the foregoing; 
 “Tax Returns” includes all returns, reports, declarations,
elections, designations, notices, filings, forms, statements and other documents (whether in tangible, electronic or other form) and including any amendments, schedules, attachments, supplements, appendices and exhibits thereto, made, prepared,
filed or required by a Governmental Entity to be made, prepared or filed by Law in respect of Taxes; 
 “Transaction
Personal Information” has the meaning ascribed thereto in Section 9.1; 
 “TSX” means the Toronto Stock
Exchange; 
 “Unvested MKS Option” means each MKS Option which, pursuant to its terms and the terms of the MKS
Stock Option Plan pursuant to which such MKS Option was granted, has not vested at the date of this Agreement and will not vest prior to the Effective Time; 
 “U.S. Securities Laws” means the 1933 Act, the 1934 Act and the rules and regulations thereunder and any applicable state blue sky laws; 

“Vested MKS Option” means each MKS Option which, pursuant to its terms and the terms of the MKS Stock Option Plan
pursuant to which such MKS Option was granted, has vested at the date of this Agreement or will vest before the Effective Time; and 
 “Voting Support Agreement” means the voting support agreement substantially in the form attached as Schedule “C” hereto dated the date hereof (including all amendments thereto)
between PTC, Acquireco and the Supporting Common Shareholders setting forth the terms and conditions upon which the Supporting Common Shareholders have agreed, among other things, and subject to the terms

  
 - 16 -

 
thereof, to vote their MKS Common Shares in favour of the Arrangement Resolution. 
  

	1.2	Interpretation Not Affected by Headings 

 The division of this Agreement into Articles, Sections, subsections and paragraphs and the insertion of headings are for convenience of reference only and shall not affect in any way the meaning or
interpretation of this Agreement. Unless the contrary intention appears, references in this Agreement to an Article, Section, subsection, paragraph or Schedule by number or letter or both refer to the Article, Section, subsection, paragraph or
Schedule, respectively, bearing that designation in this Agreement. 
  

	1.3	Number and Gender 

 In
this Agreement, unless the contrary intention appears, words importing the singular include the plural and vice versa, and words importing gender include all genders. 
  

	1.4	Date for Any Action 

 If
the date on which any action is required to be taken hereunder by a Party is not a business day, such action shall be required to be taken on the next succeeding day which is a business day. 

 

	1.5	Currency 

 Unless
otherwise stated, all references in this Agreement to sums of money are expressed in lawful money of Canada and “$” refers to Canadian dollars. 
  

	1.6	Accounting Matters 

Unless otherwise stated, all accounting terms used in this Agreement in respect of MKS shall have the meanings attributable thereto under
GAAP and all determinations of an accounting nature in respect of MKS required to be made shall be made in a manner consistent with GAAP consistently applied. 
  

	1.7	Knowledge 

  

	 	(a)	In this Agreement, references to “the knowledge of MKS” means the actual knowledge, in their capacity as officers of MKS and not in their personal capacity,
of Philip Deck, Michael Harris, Doug Sawatzky, Larry Wasylishyn, Andrew Wertkin, Megan Hall, John Cull, David Jones, and Charlie Janes after making reasonable enquiries regarding the relevant matter, as applicable, with Thomas Bosanko, Thomas
Hornek, Robert Mackin and Arnold Ozols. 

  

	 	(b)	In this Agreement, references to “the knowledge of PTC” means the actual knowledge, in their capacity as officers of PTC and not in their personal capacity,
of James Heppelmann, Iain Michel, Martha Durcan, Jeffrey Glidden and Aaron von Staats. 

  
 - 17 -

	1.8	Disclosure Letter 

 The
inclusion of any item in the MKS Disclosure Letter shall not be construed as an admission by MKS of the materiality of such item. 
  

	1.9	Schedules 

 The following
Schedules are annexed to this Agreement and are incorporated by reference into this Agreement and form a part hereof: 

Schedule A    -    Plan of Arrangement 

Schedule B    -    Arrangement Resolution 

Schedule C    -    Voting Support Agreement 

ARTICLE 2 

THE ARRANGEMENT 
  

	2.1	Arrangement 

 MKS and PTC
agree that the Arrangement will be implemented in accordance with and subject to the terms and conditions contained in this Agreement and the Plan of Arrangement. 
  

	2.2	Interim Order 

 As soon as
reasonably practicable following the execution of this Agreement, and in any event in sufficient time to hold the MKS Meeting in accordance with Section 2.3, MKS shall apply to the Court in a manner acceptable to PTC, acting reasonably,
pursuant to Section 182 of the OBCA and, in cooperation with PTC, prepare, file and diligently pursue an application for the Interim Order, the terms of which are reasonably acceptable to PTC, which shall provide, among other things:

  

	 	(a)	for the class of Persons to whom notice is to be provided in respect of the Arrangement and the MKS Meeting and for the manner in which such notice is to be provided;

  

	 	(b)	for confirmation of the record date for the MKS Meeting referred to in Subsection 2.3(a); 

 

	 	(c)	 that the requisite approval for the Arrangement Resolution shall be (i) at least 662/3% of the votes cast on the Arrangement Resolution by the MKS Common Shareholders present in person or represented by proxy
at the MKS Meeting and voting as a single class and (ii) such other approval as is required by MI 61-101 (the “MKS Common Shareholder Approval”); 

 

	 	(d)	that, in all other respects, the terms, conditions and restrictions of the MKS constating documents, including quorum requirements and other matters, shall apply in
respect of the MKS Meeting; 

  
 - 18 -

	 	(e)	for the grant of Dissent Rights to the MKS Common Shareholders who are registered MKS Common Shareholders; 

 

	 	(f)	for the notice requirements with respect to the presentation of the application to the Court for the Final Order; and 

 

	 	(g)	that the MKS Meeting may be adjourned or postponed from time to time by the MKS Board subject to the terms of this Agreement without the need for additional approval of
the Court. 

  

	2.3	MKS Meeting 

  

	 	(a)	Provided that this Agreement has not been terminated in accordance with its terms, MKS agrees to convene and conduct the MKS Meeting in accordance with the Interim
Order, MKS’s articles of incorporation, by-laws and applicable Law as soon as reasonably practicable, and in any event on or before the Meeting Deadline. MKS agrees that it shall, in consultation with PTC, fix and publish a record date for the
purposes of determining the MKS Common Shareholders entitled to receive notice of and vote at the MKS Meeting in accordance with the Interim Order. 

  

	 	(b)	Subject to Subsection 7.1(k), provided that this Agreement has not been terminated in accordance with its terms, except to the extent required by a Governmental Entity
or by applicable Law or as required for quorum purposes or otherwise permitted under this Agreement, MKS shall not adjourn, postpone or cancel (or propose or permit the adjournment postponement or cancellation of) the MKS Meeting without PTC’s
prior written consent. 

  

	 	(c)	MKS will instruct the MKS Transfer Agent to advise PTC as PTC may reasonably request, and at least on a daily basis on each of the last 10 business days prior to the
date of the MKS Meeting, as to the aggregate tally of the proxies received by MKS in respect of the Arrangement Resolution. 

  

	 	(d)	MKS will consult with PTC in fixing the date of the MKS Meeting and allow PTC’s representatives and legal counsel to attend and speak at the MKS Meeting.

  

	2.4	MKS Circular 

  

	 	(a)	 As promptly as reasonably practicable following execution of this Agreement with a targeted date of April 19, 2011, and in any event prior to the
close of business on the Mailing Deadline, MKS shall (i) prepare the MKS Circular together with any other documents required by applicable Laws, (ii) file the MKS Circular in all jurisdictions where the same is required to be filed, and
(iii) mail the MKS Circular as required under applicable Laws and by the Interim Order. On the date of mailing thereof, the MKS Circular shall comply in all material respects with all applicable Laws and the Interim Order, and shall not contain
any misrepresentation (other than a misrepresentation made in reliance on any information in respect of PTC and Acquireco provided to MKS pursuant to Section 2.4(f)), and shall contain sufficient detail to permit the MKS Common

  
 - 19 -

	 	 
Shareholders to form a reasoned judgement concerning the matters to be placed before them at the MKS Meeting. 

 

	 	(b)	In the event that MKS provides a notice to PTC regarding an Acquisition Proposal pursuant to Subsection 7.1(c) prior to the mailing of the MKS Circular then, if
requested by PTC, the Mailing Deadline will be extended until the date that is five business days following the earlier of (i) written notification from MKS to PTC that the MKS Board has determined that the Acquisition Proposal is not, and is
not reasonably expected to result in, a Superior Proposal, and (ii) the date on which MKS and PTC enter into an amended agreement pursuant to Subsection 7.1(f) which results in the Acquisition Proposal in question not being a Superior Proposal.
In the event that the Mailing Deadline is so extended, the Meeting Deadline and the Outside Date shall be extended by the same number of days as the Mailing Deadline has been extended. 

 

	 	(c)	MKS shall (i) solicit from MKS Common Shareholders proxies in favour of the approval of the Arrangement Resolution, including, if so requested by PTC, using the
services of soliciting dealers or proxy solicitation services and permitting PTC to otherwise assist MKS in such solicitation, provided that if there has been a MKS Change in Recommendation, MKS shall not be required to continue to solicit proxies
but, unless this Agreement has been terminated in accordance with its terms, shall continue to hold the MKS Meeting in accordance with Section 2.3, (ii) subject to Section 7.1, include in the MKS Circular the unanimous recommendation
of the MKS Board that the holders of MKS Common Shares vote their MKS Common Shares in favour of the Arrangement Resolution, and (iii) include in the MKS Circular a statement that each director and executive officer of MKS intends to vote all
of such Person’s MKS Common Shares (including any MKS Common Shares issued upon the exercise of any MKS Options or MKS RSUs) in favour of the Arrangement Resolution, subject to the other terms of this Agreement and the Voting Support Agreement.

  

	 	(d)	MKS shall ensure that the MKS Circular provides notice of, and advises MKS Common Shareholders of their right to attend, the Court hearing of MKS’s application for
the Final Order. 

  

	 	(e)	PTC shall promptly provide MKS with all information required with respect to PTC and Acquireco and their respective businesses as is required pursuant to applicable Law
to be included in the MKS Circular and such information shall not contain any misrepresentation. PTC and its legal counsel shall be given a reasonable opportunity to review and comment on the MKS Circular prior to the MKS Circular being printed and
filed with any Governmental Entity and MKS shall give reasonable consideration to any reasonable comments made by PTC and its legal counsel, provided that all information relating solely to PTC included in the MKS Circular shall be in form and
content satisfactory to PTC, acting reasonably. MKS shall provide PTC with final copies of the MKS Circular prior to mailing the MKS Circular to the MKS Common Shareholders. 

 

	 	(f)	 Each of PTC and MKS shall promptly notify the other if, at any time before the Effective Time, it becomes aware that the MKS Circular contains a

  
 - 20 -

	 	 
misrepresentation or becomes aware that the MKS Circular otherwise requires an amendment or supplement. In such event, MKS shall provide PTC and its legal counsel with a reasonable opportunity to
review and comment on such amendment or supplement to the MKS Circular prior to its mailing as required or appropriate. MKS shall promptly mail or otherwise publicly disseminate any amendment or supplement to the MKS Circular to the MKS Common
Shareholders and, if required by the Court or applicable Laws, file the same with any Governmental Entity and as otherwise required. 

  

	2.5	Preparation of Filings 

PTC and MKS shall co-operate and use their reasonable commercial efforts in good faith to take, or cause to be taken, all reasonable
actions, including the preparation of any applications for Regulatory Approvals and other orders, registrations, consents, filings, rulings, exemptions, no-action letters, circulars and approvals required in connection with this Agreement and the
Arrangement and the preparation of any required documents, in each case as reasonably necessary to discharge their respective obligations under this Agreement, the Arrangement and the Plan of Arrangement, and to complete any of the transactions
contemplated by this Agreement, including their obligations under applicable Laws. 
  

	2.6	Final Order 

 If
(a) the Interim Order is obtained; and (b) the Arrangement Resolution is passed at the MKS Meeting by the MKS Common Shareholders as provided for in the Interim Order and as required by applicable Law, subject to the terms of this
Agreement, MKS shall diligently pursue and take all steps necessary or desirable to have the hearing before the Court of the application for the Final Order pursuant to Section 182(5)(f) of the OBCA held as soon as reasonably practicable and,
in any event, within three business days following the approval of the Arrangement Resolution at the MKS Meeting. 
  

	2.7	Court Proceedings 

Subject to the terms of this Agreement, PTC will cooperate with and assist MKS in seeking the Interim Order and the Final Order. MKS will
provide legal counsel to PTC with reasonable opportunity to review and comment upon drafts of all material to be filed with the Court in connection with the Arrangement and will give reasonable consideration to all such comments. Subject to
applicable Law, MKS will not file any material with the Court in connection with the Arrangement or serve any such material, and will not agree to modify or amend materials so filed or served, except as contemplated by this Section 2.7 or with
PTC’s prior written consent, such consent not to be unreasonably withheld, conditioned or delayed; provided that nothing herein shall require PTC to agree or consent to any increase in Consideration or other modification or amendment to such
filed or served materials that expands or increases PTC’s obligations set forth in any such filed or served materials or under this Agreement or the Plan of Arrangement. MKS shall also provide to PTC’s legal counsel on a timely basis
copies of any notice of appearance or other Court documents served on MKS in respect of the application for the Interim Order or the Final Order or any appeal therefrom and of any notice, whether written or oral, received by MKS indicating any
intention to oppose the granting of the Interim Order or the Final Order or to appeal the Interim Order or the Final Order. MKS will ensure that all materials filed with the Court in connection with the

  
 - 21 -

 
Arrangement are consistent in all material respects with the terms of this Agreement and the Plan of Arrangement. In addition, MKS will not object to legal counsel to PTC making such submissions
on the hearing of the motion for the Interim Order and the application for the Final Order as such counsel considers appropriate, provided that MKS is advised of the nature of any submissions on a timely basis prior to the hearing and such
submissions are consistent with this Agreement and the Plan of Arrangement. MKS will also oppose any proposal from any party that the Interim Order or Final Order contain any provision inconsistent with this Agreement and, if at any time after the
issuance of the Final Order and prior to the Effective Date, MKS is required by the terms of the Final Order or by Law to return to Court with respect to the Final Order, it shall do so after notice to, and in consultation and cooperation with, PTC.

  

	2.8	Articles of Arrangement and Effective Date 

 The Articles of Arrangement shall implement the Plan of Arrangement. On the second (2nd) business day after the satisfaction or, where not prohibited, the waiver of the conditions (excluding conditions
that, by their terms, cannot be satisfied until the Effective Date, but subject to the satisfaction or, where not prohibited, the waiver of those conditions as of the Effective Date) set forth in Article 6, unless another time or date is agreed to
in writing by the Parties, the Articles of Arrangement shall be filed by MKS with the Director. From and after the Effective Time, the Plan of Arrangement will have all of the effects provided by applicable Law, including the OBCA. The closing of
the Arrangement will take place at the offices of Osler, Hoskin & Harcourt LLP, 100 King Street West, 1 First Canadian Place, Suite 6100, Toronto, Ontario at 8:00 a.m. (Toronto time) on the Effective Date, or at such other time and place as
may be agreed to by the Parties. 
  

	2.9	Treatment of MKS Options and MKS RSUs 

  

	 	(a)	In accordance with the Plan of Arrangement, at the time specified therein, each unexercised Vested MKS Option, without any further action on behalf of any holder of
such Vested MKS Option and without any payment except as provided in the Plan of Arrangement, and subject to (for greater certainty) applicable withholdings in accordance with Section 2.12, shall be transferred by the holder thereof to MKS in
consideration for a cash payment by MKS equal to the product obtained by multiplying the number of MKS Shares underlying such Vested MKS Option by the amount by which the Consideration per MKS Share exceeds (i) the exercise price of such Vested
MKS Option for Vested MKS Options denominated in Canadian dollars and (ii) the exercise price of such Vested MKS Options multiplied by the Currency Exchange Rate for Vested MKS Options denominated in U.S. dollars. Each unexercised Vested MKS
Option issued and outstanding immediately prior to the Effective Time shall thereafter be immediately cancelled. 

  

	 	(b)	 In accordance with the Plan of Arrangement, notwithstanding any contingent vesting provisions to which a MKS RSU might otherwise have been subject, and
without any further action on behalf of any holder of such MKS RSU and without any payment except as provided in the Plan of Arrangement, at the time specified in the Plan of Arrangement, each outstanding, unvested MKS RSU shall accelerate in
accordance with the terms of the MKS RSU Plan and MKS shall, subject to (for greater certainty) applicable withholdings in accordance with Section 2.12, cause the trustee of the trust under the MKS RSU Plan to deliver to

  
 - 22 -

	 	 
each holder of such an outstanding MKS RSU one MKS Common Share from the trust under the MKS RSU Plan in settlement of each such MKS RSU. 

 

	 	(c)	In accordance with the Plan of Arrangement, at the time specified therein, each Unvested MKS Option, without any further action on behalf of any holder of such Unvested
MKS Option, shall be exchanged for an option (a “Replacement Option”) to purchase from PTC the number of PTC Shares (rounded down to the nearest whole number of such shares) equal to the product obtained by multiplying (i) the
Exchange Ratio by (ii) the number of MKS Shares subject to such Unvested MKS Option immediately prior to the Effective Time, and each holder of such exchanged Unvested MKS Option shall immediately become a holder of a Replacement Option
covering the number of PTC Shares to which such holder is entitled as a result of the exchange, and each such exchanged Unvested MKS Option shall be immediately cancelled. Each such Replacement Option shall provide for an exercise price per PTC
Share (rounded up to the nearest whole cent) in United States dollars equal to (A) in respect of Unvested MKS Options denominated in Canadian dollars: (i) the quotient obtained by dividing (x) the exercise price per MKS Common Share
of such Unvested MKS Option immediately prior to the Effective Time by (y) the Exchange Ratio, divided by (ii) the Currency Exchange Rate; and (B) in respect of Unvested MKS Options denominated in U.S. dollars: the quotient obtained
by dividing (x) the exercise price per MKS Common Share of such Unvested MKS Option immediately prior to the Effective Time by (y) the Exchange Ratio, and, except as otherwise set out in the Plan of Arrangement, each Replacement Option
shall be governed by the terms and conditions of the applicable MKS Stock Option Plan and any stock option agreement pursuant to which such MKS Option was granted (including, but not limited to, the term to expiry, conditions to and manner of
exercising and vesting schedule), with any adjustments deemed to be made thereto as are necessary to ensure consistency with the provisions of the Plan of Arrangement. 

Notwithstanding the above provisions of this Subsection 2.9(c), 

 

	 	(i)	 with respect to any Unvested MKS Option, if the PTC board of directors determines in good faith that the excess of the aggregate fair market value of
the PTC Shares subject to the Replacement Option immediately after the issuance of the Replacement Option over the aggregate option exercise price for such PTC Shares pursuant to the Replacement Option (such excess, referred to as the
“Post-Exchange Option Value”) would otherwise exceed the excess of the aggregate fair market value of the MKS Shares subject to such MKS Option immediately before the issuance of the Replacement Option over the aggregate option
exercise price for such MKS Shares pursuant to such MKS Option (such excess, referred to as the “Pre-Exchange Option Value”), the previous provisions in this Subsection 2.9(c) shall be modified, but only to the extent necessary and
in a manner that does not otherwise adversely affect the holder of the Replacement Option, so that the Post-Exchange Option Value does not exceed the Pre-Exchange Option Value and provided that the
Post-

  
 - 23 -

	 	 
Exchange Option Value will not be less than the Pre-Exchange Option Value; and 

  

	 	(ii)	with respect only to an Unvested MKS Option that is held by a resident of the United States, the exercise price and the number of PTC Shares subject to a Replacement
Option shall be determined in a manner consistent with the requirements of Section 409A of the IRC; provided, further, that in the case of any such Unvested MKS Option which was an incentive stock option (as defined in Section 422 of the
IRC) immediately prior to the Effective Time, the exercise price, the number of PTC Shares and the terms and conditions of the Replacement Option shall be determined in a manner consistent with the requirements of Section 424(a) of the IRC.

  

	 	(d)	MKS shall take all necessary actions to provide the holders of MKS Options and MKS RSUs with any applicable notice required by the MKS Stock Option Plans and/or the MKS
RSU Plan. As soon as practicable after the Effective Time, PTC shall deliver or cause to be delivered to the holders of Replacement Options appropriate written notice setting forth such holders’ rights pursuant to such Replacement Options,
including the number of PTC Shares subject to such Replacement Option, and the exercise price per share of such Replacement Option and all other material terms and conditions of the award. 

 

	 	(e)	Prior to the Effective Time, the MKS Board shall take all necessary action required by, and in accordance with, the MKS Stock Option Plans and the MKS RSU Plan in order
to give effect to Subsections 2.9(a), 2.9(b), 2.9(c) and 2.9(d). 

  

	 	(f)	MKS shall not accelerate the vesting of any Unvested MKS Options. 

  

	 	(g)	PTC, Acquireco and MKS each acknowledge and agree that MKS will forego any deduction under the Tax Act with respect to the cash payment to be made by MKS to holders of
Vested MKS Options as described in Section 2.9(a) of this Agreement and pursuant to the Plan of Arrangement. To effect the foregoing, the Parties will cause MKS to timely comply with the requirements described in subsection 110(1.1) of the Tax
Act including, delivering written notice of such election to each such holder in accordance with the requirements set out in the Tax Act. 

  

	2.10	Payment of Consideration 

PTC will, following receipt by MKS of the Final Order and not less than one business day prior to the filing by MKS of the Articles of
Arrangement, cause Acquireco to deposit the Aggregate Consideration Amount in immediately available funds in escrow with the Depositary. 
  

	2.11	Announcement and Shareholder Communications 

 Subject to applicable Securities Laws, PTC and MKS shall each publicly announce the transactions contemplated hereby promptly following the execution of this Agreement by PTC and MKS, the text and timing
of each Party’s announcement to be approved 

  
 - 24 -

 
by the other Party in advance, acting reasonably. PTC and MKS agree to co-operate in the preparation of presentations, if any, to MKS Common Shareholders regarding the transactions contemplated
by this Agreement, and no Party shall (a) issue any press release or otherwise make public announcements with respect to this Agreement or the Plan of Arrangement without the consent of the other Party (which consent shall not be unreasonably
withheld or delayed) or (b) make any filing with any Governmental Entity with respect thereto without prior consultation with the other Party; provided, however, that the foregoing shall be subject to each Party’s overriding obligation to
make any disclosure or filing required under applicable Laws or stock exchange rules as long as the Party making such disclosure uses all commercially reasonable efforts to give prior oral or written notice to the other Party and reasonable
opportunity to review or comment on the disclosure or filing (other than with respect to confidential information contained in any such disclosure or filing), and if such prior notice is not possible, to give such notice promptly and, in any event
within two hours, if commercially practicable, following the making of such disclosure or filing. To the extent possible, MKS shall provide prior notice to PTC of any material public disclosure that it proposes to make regarding its business or
operations, together with a draft copy of such disclosure. To the extent possible, PTC and its legal counsel shall be given a reasonable opportunity to review and comment on such information prior to such information being disseminated publicly or
filed with any Governmental Entity and reasonable consideration shall be given to any comments made by PTC and its counsel. 
  

	2.12	Withholding Taxes 

 PTC,
MKS and the Depositary shall be entitled to deduct and withhold from any consideration payable or otherwise deliverable to any Person hereunder and from all dividends, interest or other amounts payable to any former MKS Common Shareholder such
amounts as PTC, MKS or the Depositary are required to deduct and withhold therefrom under any provision of applicable Laws in respect of Taxes. To the extent that such amounts are so deducted, withheld and remitted, such amounts shall be treated for
all purposes under this Agreement as having been paid to the Person to whom such amounts would otherwise have been paid. 
  

	2.13	List of Shareholders 

 At
the reasonable request of PTC from time to time, MKS shall provide or cause the MKS Transfer Agent to provide PTC with a list (in both written and electronic form) of the registered MKS Common Shareholders, together with their addresses and
respective holdings of MKS Common Shares, with a list of the names and addresses and holdings of all Persons having rights issued by MKS to acquire MKS Common Shares (including holders of MKS Options and MKS RSUs) and a list of non-objecting
beneficial owners of MKS Common Shares, together with their addresses and respective holdings of MKS Common Shares. MKS shall from time to time cause the MKS Transfer Agent to furnish PTC with such additional information, including updated or
additional lists of MKS Common Shareholders and lists of holdings and other assistance as PTC may reasonably request. 
  

	2.14	PTC Guarantee 

  

	 	(a)	 PTC shall cause Acquireco to perform, and hereby unconditionally and irrevocably guarantees the due and punctual performance by Acquireco of, each and
every covenant and obligation of Acquireco under this Agreement and the 

  
 - 25 -

	 	 
Arrangement, including the amount of any judgment or award made against Acquireco for the benefit of MKS (the “Obligations”). 

 

	 	(b)	If any Obligation is not duly performed by Acquireco and is not performed under this Section 2.14 by PTC for any reason whatsoever, PTC will, as a separate and
distinct obligation, indemnify and save harmless MKS from and against all losses resulting from the failure of Acquireco to perform such Obligation. If any Obligation is not duly performed by Acquireco and is not performed by PTC under this
Section 2.14 or MKS is not indemnified under the immediately preceding sentence, in each case, for any reason whatsoever, such Obligation will, as a separate and distinct obligation, be performed by PTC as primary obligor.

  

	 	(c)	The liability of PTC under this Section 2.14 will be for the full amount of the Obligations without apportionment, limitation or restriction of any kind, will be
continuing, absolute and unconditional and will not be affected by any applicable Law, or any other act, delay, abstention or omission to act of any kind by Acquireco or any other Person, that might constitute a legal or equitable defence to or a
discharge, limitation or reduction of PTC’s Obligations hereunder. 

  

	 	(d)	The liability of PTC under this Section 2.14 will not be released, discharged, limited or in any way affected by anything done, suffered, permitted or omitted to
be done by MKS in connection with any duties or liabilities of Acquireco to MKS. 

  

	 	(e)	MKS will not be bound or obligated to exhaust its recourse against Acquireco or other Persons or take any other action before being entitled to demand payment from PTC
under this Section 2.14. 

  

	 	(f)	In any claim by MKS against PTC under this Section 2.14, PTC may not claim or assert any set-off, counterclaim, claim or other right that either PTC or Acquireco
may have against MKS, any MKS Subsidiaries or any directors, employees or officers thereof. 

 ARTICLE 3

 REPRESENTATIONS AND WARRANTIES OF MKS 

 

	3.1	Representations and Warranties 

 MKS hereby represents and warrants to PTC, and acknowledges that PTC is relying upon such representations and warranties in connection with the entering into of this Agreement that: 

 

	 	(a)	 Organization and Qualification. MKS is duly incorporated, validly existing and in good standing under the OBCA and has the requisite corporate
power and authority to own its assets and conduct its business as now owned and conducted. MKS is duly qualified to carry on business and is in good standing (except in any jurisdiction that does not recognize that concept) in each jurisdiction in
which the character of its properties or the nature of its activities makes such qualification necessary, except where the failure to be so qualified or in good standing would

  
 - 26 -

	 	 
not, individually or in the aggregate, have a MKS Material Adverse Effect. True and complete copies of the constating documents of MKS as at July 27, 2009 have been delivered or made
available to PTC, and except as contemplated by this Agreement, MKS has not taken any action to amend or supersede such documents. MKS has obtained and is in compliance with all material Permits required to own, lease and operate its properties and
assets and to carry on its business as now conducted, except where the failure to obtain, or be in compliance in all material respects with, any such Permit would not have a MKS Material Adverse Effect. 

 

	 	(b)	Authority Relative to this Agreement. MKS has the requisite corporate power and authority to enter into this Agreement and to perform its obligations hereunder.
The execution and delivery of this Agreement by MKS and the consummation by MKS of the transactions contemplated by this Agreement (including the Arrangement pursuant to the Plan of Arrangement but excluding the MKS Circular and related documents)
have been duly authorized by the MKS Board and no other corporate proceedings on the part of MKS are necessary to authorize this Agreement or the consummation of the transactions contemplated by this Agreement (including the Arrangement pursuant to
the Plan of Arrangement) other than MKS Common Shareholder Approval. The MKS Board has determined unanimously, after receiving financial and legal advice and following the receipt and review of a unanimous recommendation from the MKS Special
Committee, that the Plan of Arrangement is fair to the MKS Common Shareholders and it is in the best interests of MKS to enter into this Agreement providing for the Arrangement and has resolved unanimously to recommend that the MKS Common
Shareholders vote in favour of the Arrangement Resolution. As of the date hereof, each of the directors and executive officers of MKS has advised that he or she intends to vote all MKS Common Shares held by him or her, or over which he or she
exercises control, directly or indirectly (including any MKS Common Shares issued upon the exercise of any MKS Options) in favour of the Arrangement Resolution. This Agreement has been duly executed and delivered by MKS and constitutes a valid and
binding obligation of MKS, enforceable against MKS in accordance with its terms, except as the enforcement thereof may be limited by bankruptcy, insolvency and other applicable Laws affecting the enforcement of creditors’ rights generally and
subject to the qualification that equitable remedies may be granted only in the discretion of a court of competent jurisdiction. 

  

	 	(c)	Fairness Opinion. The MKS Board has received the oral opinion (to be followed by a written opinion) of Mooreland Partners LLC to the effect that, as of the date
of such opinion, subject to the assumptions and limitations set out therein, the Consideration to be received by MKS Common Shareholders pursuant to the Arrangement is fair, from a financial point of view to the MKS Common Shareholders.

  

	 	(d)	 No Conflict; Required Filings and Consent. The execution and delivery by MKS of this Agreement and the performance by it of its obligations
hereunder (including the completion of the Arrangement pursuant to the Plan of 

  
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Arrangement) will not violate, conflict with or result in a breach of any provision of the constating documents of MKS or those of any of the MKS Subsidiaries and will not: (a) violate,
conflict with or result in a breach, termination or cancellation of (with or without notice or lapse of time or both): (i) any Contract, indenture, deed of trust, mortgage, bond, instrument, Authorization or Permit to which MKS or any of the
MKS Subsidiaries is a party or by which MKS or any of the MKS Subsidiaries is bound; or (ii) subject to the government filings and other matters set forth in this Subsection 3.1(d), any Law applicable to MKS or any of the MKS Subsidiaries;
(b) require any notice or give rise to any right of termination, or the acceleration of any indebtedness, under any such Contract, indenture, Authorization, deed of trust, mortgage, bond, instrument or Permit; or (c) give rise to any
rights of first refusal or rights of first offer, trigger any change in control or influence provisions or payments (including severance, unemployment compensation, golden parachute, change of control, retention, bonus or otherwise) or any
restriction or limitation under any such Contract, indenture, Authorization, deed of trust, mortgage, bond, instrument or Permit, or result in the imposition of any Lien upon any of MKS’s assets or the assets of any of the MKS Subsidiaries,
other than any such violation, conflict, breach, termination, cancellation, notice, right, acceleration, trigger, restriction, limitation or imposition that would not, individually or in the aggregate, have a MKS Material Adverse Effect. Other than
the Interim Order, the Final Order, the filing of the Articles of Arrangement, compliance with applicable Securities Laws and the rules and policies of the TSX, and the Regulatory Approvals (including the German Competition Act Approval), no
Authorization of, or filing with, any Governmental Entity is necessary on the part of MKS for the performance by MKS of its obligations hereunder (including the completion of the Arrangement pursuant to the Plan of Arrangement) or for the completion
of the Arrangement not to cause or result in any loss of any material rights or assets or any material interest therein held by MKS or any of the MKS Subsidiaries in any material properties or assets, except for such Authorizations, and filings as
to which the failure to obtain or make would not, individually or in the aggregate, prevent or delay consummation of the Arrangement. 

  

	 	(e)	 Subsidiaries. MKS does not have Subsidiaries or any interests in any Person, other than those listed on Schedule 3.1(e) to the MKS
Disclosure Letter. Schedule 3.1(e) to the MKS Disclosure Letter sets forth the following information with respect to each MKS Subsidiary: (i) its name; (ii) as of the date hereof, the number, type and principal amount, as applicable,
of its outstanding equity securities and a list of registered holders thereof; and (iii) its jurisdiction of organization or governance. Each MKS Subsidiary is duly organized and is validly existing under the Laws of its jurisdiction of
incorporation or organization, has the requisite corporate power and authority to own its assets and conduct its business as now owned and conducted by it and is duly qualified to carry on business in each jurisdiction in which the character of its
properties or the nature of its activities makes such qualification necessary, except where the failure to be so qualified would not have a MKS Material Adverse Effect. Each MKS Subsidiary has all material Permits required to own, lease and operate
its property and assets and to carry on its business as now conducted. Except as disclosed on 

  
 - 28 -

	 	 
Schedule 3.1(e) of the MKS Disclosure Letter, MKS beneficially owns, directly or indirectly, all of the issued and outstanding securities of each of the MKS Subsidiaries. All of the
outstanding shares in the capital of each of the MKS Subsidiaries that is a corporation are or were: (a) validly issued, fully-paid and non-assessable and all such shares are owned free and clear of all Liens; (b) issued in compliance with
all applicable Securities Laws; and (c) are free of any other restrictions including any restriction on the right to vote, sell or otherwise dispose of such shares. Neither of the Excluded MKS Subsidiaries (i) carries on any business or
(ii) has any material assets or liabilities. 

  

	 	(f)	Compliance with Laws. 

  

	 	(i)	Except as disclosed in Schedule 3.1(f)(i) of the MKS Disclosure Letter, the operations of MKS and the MKS Subsidiaries have been and are now conducted in compliance
with all applicable Laws of each jurisdiction, the Laws of which have been or are now applicable to the respective operations of MKS or of any of the MKS Subsidiaries and none of MKS or any of the MKS Subsidiaries has received any notice of and has
not been threatened with, and to the knowledge of MKS are not under investigation for, any alleged violation of any such applicable Laws, other than non-compliance or violations which, individually or in the aggregate, would not have a MKS Material
Adverse Effect. 

  

	 	(ii)	None of MKS or any of the MKS Subsidiaries is in conflict with, or in default (including cross defaults) under or in violation of: (a) its articles or by-laws or
equivalent organizational documents; or (b) any Contract or any Permit, except for failures which, individually or in the aggregate, would not have a MKS Material Adverse Effect. 

 

	 	(iii)	There is no judgment, injunction, order or decree binding upon MKS or any MKS Subsidiary that has or could have the effect of prohibiting, restricting or impairing any
business or business practices of MKS or any MKS Subsidiary, except for any prohibition, restriction or impairment which, individually or in the aggregate, would not have a MKS Material Adverse Effect. 

 

	 	(g)	Capitalization and Listing. 

  

	 	(i)	 The authorized share capital of MKS consists of an unlimited number of MKS Common Shares and an unlimited number of MKS Preferred Shares. As at the
date of this Agreement there are: (A) 10,389,180 MKS Common Shares validly issued and outstanding as fully-paid and non-assessable shares of MKS; (B) outstanding MKS Options providing for the issuance of 1,139,828 MKS Common Shares upon
the exercise thereof; and (c) outstanding MKS RSUs providing for the delivery of 60,458 MKS Common Shares. Except for the MKS Options and MKS RSUs referred to in this Subsection 3.1(g)(i) and the MKS Shareholder Rights Plan, (x) there
are no options, warrants, conversion privileges, calls or other rights, shareholder rights plans, agreements, arrangements, commitments, 

  
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or obligations of MKS or any MKS Subsidiary to issue or sell any shares of MKS or of any MKS Subsidiary or securities or obligations of any kind convertible into, exchangeable for or otherwise
carrying the right or obligation to acquire any shares of MKS or any MKS Subsidiary, and there are no outstanding stock appreciation rights, phantom equity or similar rights, agreements, arrangements or commitments of MKS or any MKS Subsidiary based
upon the book value, income or any other attribute of MKS or any MKS Subsidiary, and (y) no Person is entitled to any pre-emptive or other similar right granted by MKS or any MKS Subsidiary with respect to the capital of MKS or any MKS
Subsidiary. The MKS Common Shares are listed on the TSX, and are not listed or quoted on any market other than the TSX. All securities of MKS (including the MKS Common Shares, the MKS Options and the MKS RSUs and all other options, rights or other
convertible or exchangeable securities) have been issued in compliance in all material respects with all applicable Securities Laws and, to the extent applicable, the rules and regulations of the TSX and, in the case of MKS Options and MKS RSUs, at
fair market value in accordance with the applicable MKS Stock Option Plan or MKS RSU Plan. 

  

	 	(ii)	Schedule 3.1(g)(ii) to the MKS Disclosure Letter sets forth, as of the date hereof, the number of outstanding options and RSUs, the exercise price (in the case of
the MKS Options), expiration date and all other material terms of the MKS Options and MKS RSUs. All outstanding MKS Options and MKS RSUs are held by current employees or directors of MKS or a MKS Subsidiary. All MKS Common Shares that may be issued
pursuant to the exercise of outstanding MKS Options or in respect of MKS RSUs will, when issued in accordance with the terms of the MKS Options or in respect of MKS RSUs, be duly authorized, validly issued, fully-paid and non-assessable and are not
and will not be subject to or issued in violation of, any pre-emptive rights. 

  

	 	(iii)	There are no outstanding contractual obligations of MKS or any MKS Subsidiary to repurchase, redeem or otherwise acquire any MKS Common Shares or any shares of any MKS
Subsidiary. No MKS Subsidiary owns any MKS Shares. 

  

	 	(h)	Shareholder and Similar Agreements. MKS is not party to any shareholder, pooling, voting trust or other similar agreement relating to the issued and outstanding
shares in the capital of MKS or any MKS Subsidiary. 

  

	 	(i)	 Reports. MKS has timely filed, and shall timely file between the date of this Agreement and the Effective Date, with all applicable Governmental
Entities true and complete copies of the MKS Public Documents that MKS is required to file therewith under applicable Securities Laws. MKS Public Documents at the time filed: (a) did not, or shall not, as applicable, contain any
misrepresentation, and (b) complied, or will comply, as applicable, in all material respects with the requirements of applicable Securities Laws in effect at the time of filing. MKS has not filed any confidential material change report with any
Governmental 

  
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Entity which at the date hereof remains confidential. MKS has timely filed with the applicable Governmental Entities all material forms, reports, schedules, certifications, statements and other
documents required to be filed by MKS with the applicable Governmental Entities since May 1, 2008. 

  

	 	(j)	Real Properties/Environmental Matters. 

  

	 	(i)	Neither MKS nor any of the MKS Subsidiaries owns any real or immovable property. 

 

	 	(ii)	With respect to the real or immovable property leased, subleased or occupied by MKS or one of the MKS Subsidiaries as of the date hereof (the “MKS Leased Real
Property”), MKS has made available to PTC true and complete copies of the leases (as amended, if applicable) in respect of the MKS Leased Real Property and there are no Liens, except Permitted Encumbrances, on the leasehold, subleasehold or
occupancy rights of MKS or any MKS Subsidiary with respect to any MKS Leased Real Property. To the knowledge of MKS, (A) all MKS Leased Real Property has received all approvals of the applicable Governmental Entities (including Permits)
required to be obtained by MKS in connection with the operation thereof and have been operated and maintained in accordance with applicable Laws, except where the failure to obtain any such approval or Permit would not have a MKS Material Adverse
Effect; and (B) all MKS Leased Real Property are supplied with utilities and all other services necessary for the operation, in all material respects, of the business of MKS and each MKS Subsidiary as currently conducted and as currently
proposed to be conducted and for the operation of said facilities. 

  

	 	(iii)	 No written notice, claim, order, complaint or penalty has been received by MKS or any MKS Subsidiary since May 1, 2006 alleging that MKS or any of
the MKS Subsidiaries are in violation of, or have any liability or potential liability under, any Environmental Law or Environmental Permit, and there are no proceedings pending or, to the knowledge of MKS, threatened against MKS or any of the MKS
Subsidiaries alleging a violation of, or any liability or potential liability under, any Environmental Law or Environmental Permit. MKS and the MKS Subsidiaries hold and have, since May 1, 2006, held all Environmental Permits necessary for
their operations to comply with all Environmental Laws in all material respects. Since May 1, 2006, neither MKS nor any of the MKS Subsidiaries has caused any Release of a Hazardous Substance on, at, from or under any real or immovable property
currently or formerly owned, operated or occupied by MKS or the MKS Subsidiaries that is reasonably likely to form the basis of any claim against MKS or any of the MKS Subsidiaries. Neither MKS nor any of the MKS Subsidiaries has, either expressly
or by operation of Law, assumed responsibility for or agreed to indemnify or hold harmless any Person for any liability or obligation arising under Environmental Law that is reasonably likely to form the basis of any claim against MKS or any of the
MKS Subsidiaries. Neither the execution of this Agreement nor consummation of the 

  
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transactions contemplated by this Agreement shall require any notification to any Governmental Entity or the undertaking of any investigations or remedial actions pursuant to Environmental Law.
MKS has made available to PTC true and complete copies all material environmental reports, investigations, studies, audits and other environmental documents relating to MKS, its subsidiaries, their respective operations or any real or immovable
property currently or formerly owned, operated or occupied by MKS or any of the MKS Subsidiaries. 

  

	 	(k)	Assets. The material Tangible Personal Property, in the aggregate, is in good condition, repair and proper working order, having regard to its use and age, and,
together with the MKS Leased Real Property, the MKS Leased Personal Property, the MKS Owned Personal Property, the MKS Owned IP and the MKS Licenses, is sufficient to operate the businesses of MKS and each MKS Subsidiary as currently operated in the
ordinary course of business. MKS and each MKS Subsidiary has good title to its respective items of material Tangible Personal Property that are not subject to a lease (the “MKS Owned Personal Property”) free and clear of any Liens
other than Permitted Encumbrances. There are no Liens, other than Permitted Encumbrances, on the leasehold or subleasehold of MKS or any MKS Subsidiary to any personal or movable property leased or subleased by MKS or any of the MKS Subsidiaries
(the “MKS Leased Personal Property”). 

  

	 	(l)	Intellectual Property. 

  

	 	(i)	Schedule 3.1(l)(i) to the MKS Disclosure Letter contains a list, that is complete and accurate in all material respects as of the date hereof, of:

  

	 	(A)	the following MKS Owned IP: (A) all registered Domain Names, (B) all registered Trademarks; (C) all Patents; and (D) all registered Copyrights, in
each case listing, as applicable, (1) the name of the applicant/registrant of record, (2) the jurisdiction of the application/registration and (3) the application and/or registration number; 

 

	 	(B)	 all Intellectual Property Rights licensed to MKS or any MKS Subsidiary, including for purposes of clarity embodiments of Intellectual Property Rights,
such as software, (“MKS Licensed Intellectual Property Rights”) specifying whether such MKS Licensed Intellectual Property Rights are exclusive or non-exclusive to MKS and any MKS Subsidiary and identifying all related license,
royalty, or similar agreements or arrangements related to such license of Intellectual Property Rights to which MKS or any MKS Subsidiary is a party (“MKS In-Licenses”), except that the following MKS Licensed Intellectual Property
Rights and related MKS In-Licenses need not be listed in Schedule 3.1(l)(i) to the MKS Disclosure Letter (though they remain MKS Licensed Intellectual Property Rights and MKS In-Licenses hereunder): (A) non-exclusive licenses to any third party
software 

  
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product that are commercially available for license to the general public by the licensor and used only internally by MKS or the MKS Subsidiaries (and not as part of or incorporated into or
distributed with a Software Product), (B) Open Source Materials and (C) licenses that do not have ongoing royalty obligations or in respect of which future royalty obligations have been incurred but not paid; 

 

	 	(C)	all material licenses, royalty or other similar agreements to which MKS or any MKS Subsidiary is a party and pursuant to which MKS or any MKS Subsidiary has granted any
third party the right or authority to use, license the use of, distribute or exercise any other rights with respect to any Software Products or any Intellectual Property Rights (“MKS Out-Licenses” and, collectively with MKS
In-Licenses, the “MKS Licenses”); provided, however, that non-exclusive, non-transferable end-user licenses to object code versions of Software Products need not be listed in Schedule 3.1(l)(i) to the MKS Disclosure Letter (though
they remain MKS Out-Licenses hereunder). For each MKS Out-License listed in Schedule 3.1(l)(i) that grants any right or authority to distribute, integrate or bundle any Software Product or software developed or licensed exclusively by MKS,
Schedule 3.1(l)(i) to the MKS Disclosure Letter shall also accurately and completely, in all material respects identify any exclusive territory or field that applies to such MKS Out-License; and 

 

	 	(D)	all currently supported versions of Software Products. 

  

	 	(ii)	 Consistent with past practice and with the subsisting intellectual property filing and prosecution policies of MKS and the MKS Subsidiaries, MKS and
the MKS Subsidiaries have taken all actions commercially necessary to maintain the Registered Intellectual Property, including payment of applicable maintenance, renewal or annuity fees, filing of applicable statements of use, timely or duly
extended response to office actions and, to the knowledge of MKS, disclosure of any information required by Law and all assignments (and licenses where required) of the Registered Intellectual Property have been duly recorded with the appropriate
Governmental Entities (or, with respect to Domain Names, the appropriate domain name registrar), where necessary to maintain the validity or subsistence of same. Schedule 3.1(l)(ii) to the MKS Disclosure Letter includes, as of the date of this
Agreement, a list, that is complete and accurate in all material respects, of all material actions that must be taken within 90 days of the date hereof with any Governmental Entities (and domain name registrars as applicable) to maintain the
registration of any Registered Intellectual Property. To the knowledge of MKS, all Registered Intellectual Property that is material to the businesses of MKS 

  
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and the MKS Subsidiaries as currently conducted is subsisting, valid and enforceable. 

  

	 	(iii)	To the knowledge of MKS, the conduct of the business of MKS and the MKS Subsidiaries as presently conducted and as previously conducted does not and did not infringe,
violate, or misappropriate any Intellectual Property Rights of any third party. In the four years preceding the date of this Agreement, neither MKS nor any MKS Subsidiary has received any written notice or other written communication of any claim
asserting that MKS or any of the MKS Subsidiaries, the conduct of their respective businesses, or any Software Product infringes, violates or misappropriates the Intellectual Property Rights of any third party. To the knowledge of MKS, there is no
existing and material infringement or misappropriation of the MKS Owned IP or competing claim by any third party regarding the right to use or ownership of the MKS Owned IP. MKS and the MKS Subsidiaries are not subject to any order of any
Governmental Entity that restricts or impairs the use of MKS IP in any manner as currently used in the conduct of the businesses of MKS and the MKS Subsidiaries. 

 

	 	(iv)	MKS or the MKS Subsidiaries possess rights to the MKS Licensed Intellectual Property Rights as are sufficient for the operation of their respective businesses as
currently conducted. Except for the MKS Licenses, there are no material outstanding rights, options (whether or not currently exercisable), licenses or agreements of any kind relating to the MKS Licensed Intellectual Property Rights. Except under
the MKS Licenses neither MKS nor any MKS Subsidiary is obligated to pay any royalties or other monetary compensation to any third party in respect of its ownership, use or license of the MKS Licensed Intellectual Property Rights, or distribution or
sale of any Software Products. There has been no material breach or violation by MKS or any MKS Subsidiary of any MKS License. The validity and ownership of the MKS Owned IP has not been and is not being questioned or challenged in any litigation or
administrative proceeding and, to the knowledge of MKS, is not the subject of any threatened or proposed litigation or claim. Nothing in this Subsection 3.1((l)(iv) shall be construed as a representation or warranty as to the non-infringement of
third party Intellectual Property Rights (which subject matter is addressed in Subsection 3.1(l)(iii)). 

  

	 	(v)	 The execution and delivery of this Agreement by MKS and the consummation of the transactions contemplated hereby will not, in any material respect,
impair the rights of MKS to use, practice, operate under, license, sublicense, dispose of, or bring suit for infringement of any of the MKS Owned IP or any MKS Licensed Intellectual Property Rights under the terms of the applicable MKS In-Licenses
to substantially the same extent, and under substantially similar terms and conditions as MKS and the MKS Subsidiaries were subject to immediately prior to the date hereof that MKS and each MKS Subsidiary would have been able to had the transactions
contemplated by this Agreement not occurred, and without 

  
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the payment of any material additional royalties or other material monetary consideration other than ongoing fees, royalties or payments that MKS or any MKS Subsidiary would otherwise have been
required to pay; provided, however, that the representations contained in this Subsection 3.1(l)(v) shall not be deemed to extend to any impairment or license restriction imposed by PTC or its affiliates with regard to intellectual property rights
owned, controlled or exploited by PTC or its affiliates. 

  

	 	(vi)	Other than Open Source Materials, Schedule 3.1(l)(vi) to the MKS Disclosure Letter lists any software (regardless whether in object or source code form or whether only
forming part of a software application or only part of a function or procedure in a software application) that, (i) has been incorporated or embedded into, or distributed with a currently supported version of a Software Product, and
(ii) was not developed by employees or contractors of MKS or any MKS Subsidiary in the course of their employment or engagement for MKS or any MKS Subsidiary. MKS and the MKS Subsidiaries have a complete copy of the source code and all related
computer files for the Software Products owned by MKS or any MKS Subsidiary necessary to allow a competent computer programmer to compile object code versions of such Software Products. 

 

	 	(vii)	Other than in respect of field deliverables or extensions, neither MKS nor any MKS Subsidiary has disclosed the source code for those components of the Software
Products that are owned by MKS or any of the MKS Subsidiaries to any Person (other than to employees or contractors in the ordinary course of business and subject to commercially appropriate confidentiality restrictions, and to PTC or its
consultants pursuant to the Confidentiality Agreement), except to escrow agents and except pursuant to the agreements listed in Schedule 3.1(l)(vii) to the MKS Disclosure Letter, and MKS and the MKS Subsidiaries have taken commercially reasonable
measures to prevent disclosure of such source code. 

  

	 	(viii)	 Schedule 3.1(l)(viii) to the MKS Disclosure Letter lists all Open Source Materials that as of the date hereof MKS or any MKS Subsidiary has
incorporated or embedded into or distributed with any currently supported versions of a Software Product or from which any such Software Product or any portion thereof has been derived, specifying for each such Open Source Material module:
(i) under what open source license or licenses such module has been licensed to MKS or any MKS Subsidiary, and (ii) whether it has been distributed with or as a part of any such currently supported versions of a Software Product. All such
Open Source Materials incorporated into and/or distributed with a currently supported version of a Software Product have been (A) properly labeled and identified in all material respects in substantial accordance with, and to the extent
required, by the terms of its license listed in Schedule 3.1(l)(viii) to the MKS Disclosure Letter and (B) distributed in such a manner so as to both substantially comply in all material respects with the terms of its license listed in Schedule
3.1(l)(viii) to the MKS Disclosure Letter and not 

  
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materially cause the remainder of the said currently supported versions of a Software Product with which or into which it is distributed to be deemed a work based on such Open Source Material or
to otherwise fall under the scope of the terms of such license in any material respect. 

  

	 	(ix)	The Software Products conform substantially and in all material respects to the written documentation and specifications therefor, except for those deficiencies and
defects each requiring not more than 1,000 person hours to be remediated by MKS or a MKS Subsidiary during the ordinary course of business. As of the date of this Agreement, to the knowledge of MKS there is no deficiency or defect in respect of the
Software Products requiring more than 100 person hours to be remediated by MKS or a MKS Subsidiary. 

  

	 	(x)	MKS has used industry standard measures that are intended to avoid the inclusion or introduction into the Software Products of “viruses”, “worms”,
“trojan horses”, “time bombs”, “back doors”, and other infections or harmful routines designed to disrupt, disable, harm, distort or otherwise impede in any manner the legitimate operation of such software
(collectively, “Malware”). To the knowledge of MKS, the Software Products are free of all Malware. 

  

	 	(xi)	To the knowledge of MKS, no Person has gained unauthorized access to any IT Asset or data stored thereon (including any customer or employee data).

  

	 	(xii)	 MKS and each MKS Subsidiary has taken commercially reasonable steps to establish and preserve the ownership of the MKS Owned IP and the Software
Products owned by MKS or by any MKS Subsidiary, including the protection of trade secrets and other confidential information according to prevailing industry practices. All employees of MKS or any MKS Subsidiary who are or were involved in, or who
have contributed to, the creation or development of any MKS Owned IP or Software Products or have otherwise had access to confidential or proprietary information of MKS or any MKS Subsidiary have executed and delivered to MKS or such MKS Subsidiary
a confidentiality agreement in writing, containing commercially appropriate restrictions on disclosure and use. A copy of the form of MKS Employee Confidentiality/IP Agreement is included in Schedule 3.1(l)(xii) to the MKS Disclosure Letter. To the
knowledge of MKS, all of such confidentiality agreements are in full force and effect, except where they have expired by their applicable terms. To the knowledge of MKS, there has been no violation of the confidentiality of any material trade
secrets or proprietary information comprising material MKS Owned IP. All material MKS Owned IP, all MKS Owned IP that is subject to an out license agreement currently in effect, and all currently supported versions of Software Products owned by MKS
or by any MKS Subsidiary, were developed, designed, or programmed solely by employees or contractors of MKS or of any of the MKS Subsidiaries (the “Developers”) during and within the scope of their employment or

  
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engagement. All such Developers have duly executed and delivered to MKS or to the applicable MKS Subsidiary, on or before the date of commencement of their respective employment with or
engagement by MKS or by any MKS Subsidiary, an assignment in writing, without additional consideration (other than in the form of inventor awards or other similar recognition), of all Intellectual Property Rights that are both (i) conceived or
reduced to practice during the course of their employment or engagement with MKS or any MKS Subsidiary and (ii) related to the said Software Products and MKS Owned IP. Such assignment also provides that such Developers have waived all of their
moral rights in such Intellectual Property Rights. To the knowledge of MKS, there is no material breach of any of the MKS Employee/IP Confidentiality Agreements. 

 

	 	(xiii)	To the knowledge of MKS, in each case in which MKS or any of the MKS Subsidiaries has acquired ownership of any registered Trademarks, registered Copyrights or Patents
included in the MKS Owned IP from another Person, MKS or its appropriate MKS Subsidiary has taken reasonable steps to record or to have recorded such acquisition with the Canadian Intellectual Property Office, the U.S. Patent and Trademark Office,
the U.S. Copyright Office, or their respective equivalents in the applicable jurisdictions, where such recordal is necessary to maintain the validity or subsistence of such MKS IP. To the knowledge of MKS, no Person other than MKS or a MKS
Subsidiary is using any Trademarks that are part of MKS Owned IP in Canada without a licence. 

  

	 	(xiv)	Except as set forth in Schedule 3.1(l)(xiv) to the MKS Disclosure Letter, neither MKS nor any of the MKS Subsidiaries has granted to any other Person any exclusive
license or other exclusive rights under any MKS IP that is still in effect. A copy of each MKS License listed in Schedule 3.1(l)(i) to the MKS Disclosure Letter, which Schedule is complete and accurate in all material respects, has been made
available to PTC. To the knowledge of MKS, all MKS Licenses are binding, and are in full force and effect, in each case in all material respects. 

  

	 	(xv)	MKS and the MKS Subsidiaries own all right, title and interest in the MKS Owned IP that is material to the businesses of MKS and the MKS Subsidiaries, free and clear of
all Liens other than (A) encumbrances, restrictions or other obligations arising under any of the MKS Licenses and (B) non-exclusive licenses granted by MKS and the MKS Subsidiaries in the ordinary course of business.

  

	 	(xvi)	To the knowledge of MKS, there is no unauthorized use, infringement or misappropriation of any MKS Owned IP by a third party. Except as relates to the MKS Out-Licenses,
neither MKS nor any MKS Subsidiary has agreed with any third party not to sue or otherwise enforce any legal rights with respect to any of the MKS Owned IP. 

  
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	 	(xvii)	Assuming that the consents disclosed in Schedule 3.1(l)(xvii) to the MKS Disclosure Letter have been obtained, the execution and delivery of this Agreement and the
consummation of the Arrangement will not result in any right of termination or cancellation under any MKS In-Licenses or any loss of rights in or to any MKS IP that, in each case, would be material to the businesses of MKS and the MKS Subsidiaries
as currently conducted. 

  

	 	(xviii)	Assuming that the consents disclosed in Schedule 3.1(l)(xviii) of the MKS Disclosure Letter have been obtained, the execution and delivery of this Agreement and the
consummation of the Arrangement will not result in, after consummation of the Arrangement, PTC or any of its Subsidiaries being required, under the terms of any agreement to which MKS or any of the MKS Subsidiaries is a party, to grant any third
party any license or other rights in or to any of MKS’s or any of the MKS Subsidiaries’ Intellectual Property Rights. 

  

	 	(xix)	To the knowledge of MKS, no condition has occurred that would be sufficient to entitle the beneficiary under any source code escrow arrangement to require release of
any MKS Source Code. To the knowledge of MKS and assuming that the consents disclosed in Schedule 3.1(l)(xix) to the MKS Disclosure Letter have been obtained, the consummation of the Arrangement will not constitute a condition sufficient to entitle
the beneficiary under any source code escrow arrangement to require release, in whole or in part, of any MKS Source Code for any currently supported version of a Software Product. 

 

	 	(xx)	Except as disclosed in Schedule 3.1(1)(xx) to the MKS Disclosure Letter, MKS has neither sought, applied for nor received any support, funding, resources or assistance
from any Governmental Entity in connection with the MKS Owned IP that would encumber, restrict or otherwise impair the use of such Intellectual Property. MKS has not entered into any agreement or understanding with Technology Partnerships Canada.

  

	 	(xxi)	Except as set forth in Schedule 3.1(l)(xxi) to the MKS Disclosure Letter, neither MKS nor any of the MKS Subsidiaries has entered into any Material Contract described
in clause (n) of the definition of “Material Contracts” that is still in effect. A copy of each such Material Contract listed in Schedule 3.1(l)(xxi) to the MKS Disclosure Letter has been made available to PTC.

  

	 	(xxii)	MKS and the MKS Subsidiaries’ collection and dissemination of personal customer information in connection with their respective businesses has been conducted in
all material respects in accordance with applicable privacy policies published or otherwise adopted by MKS and the MKS Subsidiaries and any applicable Laws. 

  
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	 	(m)	Computer Systems. 

  

	 	(i)	The Computer Systems adequately meet the data processing and other computing needs of the operations of MKS as presently conducted. The Computer Systems function,
operate, process and compute substantially in accordance with all applicable and material Laws, industry standards and trade practices. 

  

	 	(ii)	MKS has measures in place, at least consistent with current industry standards and practices, that are intended to ensure that the Computer Systems contain appropriate
virus protection and that are measures intended to safeguard against the unauthorized use, copying, disclosure, modification, theft or destruction of and access to, system programs and data files comprised by the Computer Systems. MKS has and
maintains all applicable accounts, passwords, encryption algorithms and programs or other access keys required by MKS and its employees to access the system programs and data files comprised by the Computer Systems. The data processing and data
storage facilities used by MKS in connection with the operation of the business are reasonably protected in respect of known security breaches, at least in a manner consistent with current industry standards and practices. 

 

	 	(iii)	MKS has and maintains back-up systems and disaster recovery and business continuity plans at least consistent with industry standards and practices, and that are
intended to reasonably address the continuing availability of the functionality provided by the Computer Systems in the event of any malfunction of, or other form of disaster affecting, the Computer Systems. 

 

	 	(iv)	MKS is, or at the Effective Date will be, (a) in possession of the object code and available user manuals for all third-party in-licensed software (other than
off-the-shelf application software) which is used in the business and which is material to the business of MKS and the MKS Subsidiaries as currently conducted (the “Application Software”); and (b) either in the possession of,
or a beneficiary under a source code escrow agreement or has or will have other conditional rights of access to, the source code and all available documentation required for effective use of the Application Software. To the knowledge of MKS, MKS has
made available to PTC, copies of any source code escrow agreements relating to the Application Software, which copies are complete and accurate in all material respects. 

 

	 	(n)	Customers; Resellers; Warranties. 

  

	 	(i)	Schedule 3.1(n)(i) to the MKS Disclosure Letter sets forth the largest 40 customers of MKS and the MKS Subsidiaries based on MKS’s consolidated revenues for each
of (A) the fiscal year ended April 30, 2010; and (B) the period from May 1, 2010 to January 31, 2011 (the “Key Customers”). 

  
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	 	(ii)	Schedule 3.1(n)(ii) to the MKS Disclosure Letter sets forth, as of March 31, 2011, each current reseller, distributor or other channel partner of the Software
Product of MKS and the MKS Subsidiaries from which MKS or any MKS Subsidiary has generated revenue since May 1, 2009. 

  

	 	(iii)	As of March 31, 2011, no direct reseller, distributor or other channel partner of the products of MKS and the MKS Subsidiaries held in inventory any products of
MKS or the MKS Subsidiaries having an aggregate list price of $50,000 or more. Except as disclosed in Schedule 3.1(n)(iii) to the MKS Disclosure Letter, no reseller, distributor or other channel partner of the Software Products accounted for more
than 5% of MKS’s consolidated revenues in the fiscal year ended April 30, 2010. 

  

	 	(iv)	No commercially released Software Product developed, sold (whether directly or indirectly, including through any reseller, channel partner or distributor), licensed,
leased, or delivered by MKS or any MKS Subsidiary is subject to any guarantee, warranty, or other indemnity other than a guarantee, warranty or other indemnity provided in the ordinary course of business. All products and services manufactured, sold
(whether directly or indirectly, including through any reseller, channel partner or distributor), licensed, leased, provided and/or delivered by MKS or any MKS Subsidiary have been in conformity in all material respects with all applicable
contractual commitments and expressed and implied warranties, and no warranty claims exist for the repair or replacement thereof or otherwise. 

  

	 	(v)	As at March 31, 2011, no customer had purchased a site license to any MKS Integrity Software Product which otherwise would be licensed on a named or concurrent
basis. 

  

	 	(vi)	Schedule 3.1(n)(vi) of the MKS Disclosure Letter sets forth a list of all open services engagements of MKS and the MKS Subsidiaries as of February 28, 2011, which
engagements would generate revenues over $5,000 for the remaining term of the engagement. 

  

	 	(o)	Financial Statements. 

  

	 	(i)	 The audited consolidated financial statements and the unaudited consolidated interim financial statements of MKS contained in the MKS Public Documents,
including any notes thereto have been, and all financial statements of MKS which are publicly disseminated by MKS in respect of any subsequent periods prior to the Effective Date will be, prepared in accordance with GAAP applied consistent during
the periods involved (except as may be indicated in the notes thereto) and all applicable Laws and present fairly or shall present fairly, in all material respects, the consolidated financial position of MKS and the MKS Subsidiaries as of the
respective dates thereof and their consolidated results of operations and cash flows for the respective periods covered thereby (except as may 

  
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be indicated expressly in the notes thereto and, in the case of the unaudited consolidated interim financial statements, subject to normal year-end adjustments and the absence of notes). Except
as disclosed in the MKS Public Documents, there are no outstanding loans made by MKS or any MKS Subsidiary to any executive officer or director of MKS. Except as set forth in the MKS Public Documents, neither MKS nor any MKS Subsidiary has any
documents creating any material off-balance sheet arrangements. Neither MKS nor any MKS Subsidiary is a party to, or has any commitment to become a party to, any joint venture, partnership agreement or any similar contract (including any contract
relating to any transaction, arrangement or relationship between or among MKS or any MKS Subsidiary, on the one hand, and any unconsolidated affiliate, including any structured finance, special purpose or limited purpose entity or Person, on the
other hand) where the purpose or effect of such arrangement is to avoid disclosure of any material transaction involving MKS or any of the MKS Subsidiaries in MKS’s financial statements. MKS is not aware of any year-end adjustments in respect
of the fiscal year ended April 30, 2011 that are expected to be material under GAAP. 

  

	 	(ii)	The chief executive officer of MKS and the chief financial officer of MKS each has made all certifications required by National Instrument 52-109 –
Certification of Disclosure in Issuers’ Annual and Interim Filing, as applicable, with respect to the MKS Public Documents, and the statements contained in such certifications were accurate as of the respective dates they were made.

  

	 	(iii)	Since May 1, 2010 to the date of this Agreement, neither MKS nor any MKS Subsidiary nor, to the knowledge of MKS, any director, officer, employee, auditor,
accountant or representative of MKS or any MKS Subsidiary has received or otherwise had or obtained knowledge of any complaint, allegation, assertion, or claim, whether written or oral, regarding the accounting practices, procedures, methodologies
or methods of MKS or any MKS Subsidiary or their respective internal accounting controls, including any complaint, allegation, assertion, or claim that MKS or any MKS Subsidiary has engaged in questionable accounting or auditing practices, which has
not been resolved to the satisfaction of the audit committee of the MKS Board. 

  

	 	(p)	Undisclosed Liabilities. Neither MKS nor any MKS Subsidiary has any material liabilities or obligations of any nature, whether or not accrued, contingent or
otherwise, except for: (a) liabilities and obligations that are specifically presented on the unaudited balance sheet of MKS as of January 31, 2011 (the “MKS Balance Sheet”) or disclosed in the notes thereto;
(b) liabilities and obligations incurred in the ordinary course of business since January 31, 2011; (c) liabilities or obligations incurred by MKS or one or more of its Subsidiaries in connection with the transactions contemplated by
this Agreement; or (d) liabilities and obligations listed in Schedule 3.1(p) to the MKS Disclosure Letter. 

  

	 	(q)	Employment Matters. 

  
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	 	(i)	MKS has made available to PTC as part of the MKS Data Room Information a complete and accurate list, as of March 31, 2011, of all MKS and MKS Subsidiary employees
by IDs, titles, service dates and material terms of employment, including current wages, salaries or hourly rate of pay, benefits, on target commissions and bonus (whether monetary or otherwise) or other material compensation paid since May 1,
2009 (including the date of payment if paid since February 1, 2011) or payable to each such employee and the date upon which each such term of employment became effective if it became effective in the 12 month period prior to March 31,
2011. 

  

	 	(ii)	Other than as disclosed in MKS’s management information circular dated June 17, 2010 or in Schedule 3.1(q)(ii) to the MKS Disclosure Letter, neither MKS
nor any MKS Subsidiary has entered into any written or oral agreement or understanding providing for (i) severance or termination or change of control payments to any director, officer or employee in connection with the termination of their
position or their employment as a direct result of a change in control of MKS and no director, officer or employee can terminate their employment and receive such payments on a change of control of MKS or any MKS Subsidiary, or (ii) a retention
or completion payment to any director, officer or employee that would be payable upon a change of control of MKS or any MKS Subsidiary. Except for those employment agreements listed in Schedule 3.1(q)(ii) to the MKS Disclosure Letter, there are no
employment agreements with any employee of MKS or any MKS Subsidiary which are not terminable on the giving of reasonable notice in accordance with applicable Law. To the knowledge of MKS, no executive employed by MKS or any MKS Subsidiary has any
plans to terminate his or her employment. 

  

	 	(iii)	Neither MKS nor any MKS Subsidiary (i) is a party to, voluntarily or by operation of Law, any collective bargaining agreement, or (ii) is subject to any
application for certification or, to the knowledge of MKS, threatened or apparent union-organizing campaigns for employees and there are no outstanding or, to the knowledge of MKS, threatened unfair labour practices, complaints or applications
brought by any union against MKS or any MKS Subsidiary. 

  

	 	(iv)	Neither MKS nor any MKS Subsidiary is subject to any claim for wrongful dismissal, constructive dismissal or any other contractual or tort claim, actual or, to the
knowledge of MKS, threatened, or any litigation actual, or to the knowledge of MKS, threatened, relating to employment or termination of employment of employees or independent contractors. 

  
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	 	(r)	Absence of Certain Changes or Events. Since April 30, 2010: 

  

	 	(i)	MKS and the MKS Subsidiaries have conducted their respective businesses only in the ordinary course of business, except for the transactions contemplated by this
Agreement or as set forth in Schedule 3.1(r)(i) to the MKS Disclosure Letter; 

  

	 	(ii)	there has been no MKS Material Adverse Effect; 

  

	 	(iii)	there has not been any change in the accounting practices used by MKS and the MKS Subsidiaries, except as disclosed in the MKS Public Documents or as required by GAAP
or United States generally accepted accounting principles or as required by applicable Law; and 

  

	 	(iv)	there has not been any redemption, repurchase or other acquisition of MKS Shares by MKS or, except as disclosed in Schedule 3.1(r)(iv) to the MKS Disclosure Letter or
in the MKS Public Documents, any declaration, setting aside or payment of any dividend or other distribution (whether in cash, shares or property) with respect to the MKS Shares. 

 

	 	(s)	Litigation. Except as disclosed in Schedule 3.1(t)(iii) to the MKS Disclosure Letter, there is no claim, action, suit, proceeding, investigation or arbitration
pending or, to the knowledge of MKS, threatened against or relating to MKS or any of the MKS Subsidiaries, the business of MKS or any of the MKS Subsidiaries or affecting any of their properties, assets, or businesses before or by any Governmental
Entity. To the knowledge of MKS, there are no events or circumstances which would reasonably be expected to give rise to any such claim, action, suit, proceeding, investigation or arbitration (collectively, “Legal Actions”), which
Legal Actions, if resolved in accordance with the plaintiff’s demands, would, individually or in the aggregate, have a MKS Material Adverse Effect. Neither MKS nor any of the MKS Subsidiaries is subject to any outstanding order, writ,
injunction or decree which has had or would have a MKS Material Adverse Effect or which would prevent or delay consummation of the transactions contemplated by this Agreement. 

 

	 	(t)	Taxes 

  

	 	(i)	Each of MKS and the MKS Subsidiaries has duly and in a timely manner filed all material Tax Returns required to be filed by it with the appropriate Governmental Entity,
and such Tax Returns are accurate and complete in all material respects. 

  

	 	(ii)	Each of MKS and the MKS Subsidiaries has duly and timely withheld all Taxes and other amounts required by Law to be withheld by it (including Taxes and other amounts
required to be withheld by it in respect of any amount paid or credited or deemed to be paid or credited by it to or for the benefit of any Person) and has duly and timely remitted to the appropriate Governmental Entity such Taxes or other amounts
required by Law to be remitted by it. 

  
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	 	(iii)	Except as disclosed in Schedule 3.1(t)(iii) to the MKS Disclosure Letter, as at the date of this Agreement there are no proceedings, investigations, audits or claims
now pending or threatened against MKS or any of the MKS Subsidiaries in respect of any Taxes and there are no matters under discussion, audit or appeal with any Governmental Entity relating to Taxes. 

 

	 	(iv)	Each of MKS and the MKS Subsidiaries paid and will continue until the Effective Date to pay all material Taxes, including any amount due on or before the Effective
Date, including instalments or prepayments of Taxes, which are required to have been paid to any Governmental Entity pursuant to applicable Law. 

  

	 	(v)	To the knowledge of MKS, there has not been an acquisition of control (within the meaning of the Tax Act) of MKS at any time subsequent to May 1, 2007.

  

	 	(u)	Books and Records. The corporate records and minute books of MKS and the MKS Subsidiaries have been maintained in accordance with all applicable Laws in all
material respects, and the minute books of MKS and the MKS Subsidiaries as provided to PTC are complete and accurate in all material respects. The financial books and records and accounts of MKS and the MKS Subsidiaries in all material respects:
(i) have been maintained in accordance with good business practices and in accordance with United States generally accepted accounting principles, on a basis consistent with prior years; (ii) are stated in reasonable detail and, in the
case of the MKS Subsidiaries, during the period of time when owned by MKS, accurately and fairly reflect in all material respects the material transactions and dispositions of assets of MKS and the MKS Subsidiaries; and (iii) in the case of the
MKS Subsidiaries, during the period of time when owned by MKS, accurately and fairly reflect the basis for MKS’s consolidated financial statements. 

  

	 	(v)	Insurance. 

  

	 	(i)	MKS and the MKS Subsidiaries maintain insurance policies covering the operations and assets of MKS and the MKS Subsidiaries, such policies having terms and providing
insurance coverages comparable to those that are customarily carried and insured against by owners of comparable businesses, properties and assets. All premiums payable prior to the date hereof under such policies of insurance have been paid. To the
knowledge of MKS, each of such policies is in full force and effect on the date of this Agreement. MKS has made available to PTC a complete and accurate copy of each such policy. 

 

	 	(ii)	Each of MKS and the MKS Subsidiaries maintains a sufficient level of insurance to comply with (A) each of its material Permits (if applicable), and (B) the
terms and conditions of each Material Contract. 

  

	 	(iii)	 No written (or to the knowledge of MKS other) notice of cancellation or 

  
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termination has been received by MKS or any MKS Subsidiaries with respect to any such policy. 

  

	 	(iv)	There is no material claim pending under any insurance policy that has been denied, rejected, questioned or disputed by any insurer or as to which any insurer has made
any reservation of rights or refused to cover all or any portion of such claims. All claims covered by any of the insurance policies have been properly reported to and accepted by the applicable insurer. 

 

	 	(w)	Non-Arm’s Length Transactions. Except for employment or employment compensation agreements entered into in the ordinary course of business or as disclosed
in the MKS Public Documents or in Schedule 3.1(w) to the MKS Disclosure Letter, there are no current contracts, commitments, agreements, arrangements or other transactions (including relating to indebtedness by MKS or any of the MKS
Subsidiaries) between MKS or any of the MKS Subsidiaries on the one hand, and any (i) officer or director of MKS or any MKS Subsidiary, (ii) any holder of record or, to the knowledge of MKS, beneficial owner of five percent or more of the
voting securities of MKS, or (iii) any affiliate or associate of any officer, director or beneficial owner, on the other hand. 

  

	 	(x)	Benefit Plans  

  

	 	(i)	Schedule 3.1(x)(i) to the MKS Disclosure Letter contains a true and complete list of all current MKS Benefit Plans. Complete copies of all current MKS Benefit
Plans including, but not limited to, any trust instruments, insurance contracts and all amendments thereto have been made available or provided to PTC. 

  

	 	(ii)	Except as disclosed in Schedule 3.1(x)(ii) to the MKS Disclosure Letter for the provision of termination or severance pay or benefits pursuant to the terms of any MKS
Benefit Plan or any individual employment agreement or offer letter, MKS and the MKS Subsidiaries have no liability for retiree life, health, medical or other welfare benefits to former employees or beneficiaries or dependents thereof, except for
continuation of health coverage to the extent required under Section 4980B of the IRC or Section 601 eq seq. of ERISA (“COBRA”) or other applicable Laws and there has been no communication to employees by MKS or any MKS
Subsidiary which could reasonably be interpreted to promise or guarantee such employees retiree health or life insurance or other retiree death benefits on a permanent basis. 

 

	 	(iii)	No MKS Benefit Plan is a “registered pension plan” as such term is defined in the Tax Act. 

 

	 	(iv)	 Each MKS Benefit Plan has been operated, established, registered, amended, funded, administered and invested in all material respects in accordance
with applicable Laws and its terms and any contributions required to be made under each MKS Benefit Plan, as of the date hereof, 

  
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have been timely made and all obligations in respect of each MKS Benefit Plan have been properly accrued and reflected in accordance with the requirements of GAAP or United States generally
accepted accounting principles in all material respects in the audited consolidated financial statements for MKS as at and for the fiscal year ended on April 30, 2010, including the notes thereto and in the unaudited consolidated financial
statements for MKS as at and for the period ended January 31, 2011, including the notes thereto. Neither MKS nor any MKS Subsidiary has received, in the last six years, any notice questioning or challenging such compliance, and MKS has no
knowledge of any such notice beyond the last six years. There is no investigation or claim (other than routine claims for payment of benefits) pending or, to the knowledge of MKS, threatened involving any MKS Benefit Plan or their assets for which
MKS or any MKS Subsidiary may have any material liability, and no facts exist which would reasonably be expected to give rise to any such investigation or claim (other than routine claims for payment of benefits). 

 

	 	(v)	There has been no amendment to, announcement by MKS or any of the MKS Subsidiaries relating to, or change in employee participation or coverage under, any MKS Benefit
Plan which would increase materially the expense of maintaining such plan to MKS or any MKS Subsidiary above the level of the expense incurred therefor for the most recent fiscal year. Except as provided in Section 2.9 or as disclosed in the
MKS Public Documents or Schedule 3.1(q)(ii) to the MKS Disclosure Letter, neither the execution of this Agreement, nor the consummation of the Arrangement will (i) entitle any employees of MKS or any MKS Subsidiary to severance pay or any
increase in severance pay upon any termination of employment after the date hereof, (ii) accelerate the time of payment or vesting or result in any payment or funding (through a grantor trust or otherwise) of compensation or benefits under,
increase the amount payable or result in any other material obligation pursuant to, any of the MKS Benefit Plans, or (iii) limit or restrict the right of MKS or, after the consummation of the Arrangement, PTC to merge, amend or terminate any of
the MKS Benefit Plans. 

  

	 	(vi)	There are no entities other than MKS or any MKS Subsidiary participating in any MKS Benefit Plan. 

 

	 	(vii)	All data necessary to administer each MKS Benefit Plan is in the possession of MKS or the MKS Subsidiaries or their agents and is in a form which is sufficient for the
proper administration of the MKS Benefit Plans in accordance with their terms and all Laws and such data is complete and correct in material respects. 

  

	 	(viii)	None of the MKS Benefit Plans, or any insurance contract relating thereto, require or permit a retroactive increase in premiums or payments, or require additional
premiums or payments on termination of the MKS Benefit Plans or any insurance contact relating thereto. 

  
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	 	(ix)	There is no entity (other than MKS and the MKS Subsidiaries) that together with MKS would be treated as a single-employer within the meaning of Section 414(b),
(c), (m) or (o) of the IRC or Section 4001(b) of ERISA. 

  

	 	(x)	Each MKS Benefit Plan which is intended to be qualified under Section 401(a) of the IRC either has received a favorable determination letter from the IRS or is
entitled to rely upon a favorable opinion letter from the IRS and, to the knowledge of MKS, there are no circumstances that will or could reasonably be expected to result in revocation of any such favorable determination letter or opinion letter.

  

	 	(xi)	No MKS Benefit Plan is or has been subject to Title IV of ERISA, Section 412 of the IRC or Section 302 or ERISA. 

 

	 	(xii)	No fiduciary of a MKS Benefit Plan has engaged in a transaction with respect to any MKS Benefit Plan that, assuming the taxable period of such transaction expired as of
the date hereof, could subject MKS to a material tax or penalty imposed by either Section 4975 of the IRC or Section 502(1) of ERISA or a material violation of Section 406 of ERISA. 

 

	 	(xiii)	Neither MKS nor any MKS Subsidiary or ERISA Affiliate has ever maintained, sponsored, contributed to, been required to contribute to, or incurred any liability under
any: (i) multi-employer plan as defined in Section 3(37) or Section 4001(a)(3) of ERISA, (ii) multiple employer plan as defined in Section 413(c) of the IRC, or any plan that has two or more contributing sponsors at least
two of whom are not under common control, within the meaning of Section 4063(a) of ERISA, (iii) welfare benefit fund within the meaning of Section 419(e) of the IRC, or (iv) voluntary employees’ beneficiary association,
within the meaning of Section 501(c)(9) of the IRC. 

  

	 	(xiv)	Neither MKS nor any MKS Subsidiary is a party to any contract or agreement, plan, or arrangement, including, without limitation, the consummation of the transactions or
other events contemplated by this Agreement, concerning any person that, individually or collectively with other similar agreements, and taking into account any transactions or payments contemplated by this Agreement, could reasonably be expected to
give rise to the payment of any amount that would not be deductible by MKS or any MKS Subsidiary by reason of Section 280G of the IRC. Neither MKS nor any MKS Subsidiary has any obligation to make any reimbursement or other payment to any such
person with respect to any Tax imposed under Section 4999 of the IRC. 

  

	 	(xv)	Neither MKS nor any MKS Subsidiary or any ERISA Affiliate has any “leased employees” within the meaning of Section 414(n) of the IRC or any independent
contractors or other individuals who provide employee type services but who are not recognized by MKS or any MKS Subsidiary as employees of MKS or such MKS Subsidiary. 

  
 - 47 -

	 	(xvi)	All MKS Benefit Plans that are “nonqualified deferred compensation plans” within the meaning of Section 409A(d)(1) of the IRC comply with the IRC section
409A and the guidance issued thereunder, in form and in operation. 

  

	 	(y)	Restrictions on Business Activities. There is no judgement, injunction, order or decree binding upon MKS or any MKS Subsidiary that has or would reasonably be
expected to have the effect of prohibiting, restricting or materially impairing any business practice of MKS or any MKS Subsidiary, any acquisition of property by MKS or any MKS Subsidiary or the conduct of business by MKS or any MKS Subsidiary as
currently conducted. 

  

	 	(z)	Material Contracts. The MKS Data Room Information includes each of the Material Contracts described in clauses (d) and (f) of the definition of
Material Contract. MKS and the MKS Subsidiaries have performed in all material respects all respective obligations required to be performed by them to date under the Material Contracts. Neither MKS nor any of the MKS Subsidiaries is in breach or
default under any Material Contract to which it is a party or bound, nor, to the knowledge of MKS, is there any condition that with the passage of time or the giving of notice or both would result in such a breach or default, other than breaches or
defaults which would not, individually or in the aggregate, have a MKS Material Adverse Effect. To the knowledge of MKS, there has been no, and MKS has not received, written notice of, any breach or default under (nor, to the knowledge of MKS, does
there exist any condition which with the passage of time or the giving of notice or both would result in such a breach or default under) or any threat to terminate any such Material Contract by any other party thereto. All Material Contracts are
legal, valid and binding and in full force and effect and are enforceable by MKS (or a MKS Subsidiary, as the case may be) in accordance with their respective terms (subject to bankruptcy, insolvency and other applicable Laws affecting
creditors’ rights generally, and to general principles of equity). 

  

	 	(aa)	Relationships with Suppliers. MKS has not received any written (or to the knowledge of MKS other) notice that any supplier intends to cancel, terminate or
otherwise modify or not renew its agreement, contract, arrangement or its supply relationship with MKS or any MKS Subsidiary, and, to the knowledge of MKS, no such action has been threatened, which, in either case, individually or in the aggregate,
would have a MKS Material Adverse Effect. 

  

	 	(bb)	Brokers. Except for the fees to be paid to Mooreland Partners LLC pursuant to its engagement letter with MKS, a true and complete copy of which has been made
available to PTC, none of MKS, any MKS Subsidiary, or any of their respective officers, directors or employees has employed any broker or finder or incurred any liability for any brokerage fees, commissions or finder’s fees in connection with
the transactions contemplated by this Agreement. 

  

	 	(cc)	 Reporting Issuer Status. MKS is a “reporting issuer” and not on the list of reporting issuers in default under applicable Securities
Laws in each of the provinces of Canada in which such concept exists and is not in default of any 

  
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material requirements of any Securities Laws. To the knowledge of MKS, no delisting, suspension of trading in or cease trading order with respect to any securities of MKS or any prohibition on
the sale of any securities of MKS and, to the knowledge of MKS, no inquiry or investigation (formal or informal) of any Governmental Entity, is pending, in effect or ongoing or threatened. 

 

	 	(dd)	Shareholder Rights Plan. Other than the MKS Shareholder Rights Plan MKS does not have in place, and the MKS Common Shareholders have not adopted or approved, any
shareholder rights plan or a similar plan giving rights to acquire additional MKS Common Shares upon execution or performance of the obligations under this Agreement. 

 

	 	(ee)	Corrupt Practices Legislation. Neither MKS, the MKS Subsidiaries and affiliates, nor any of their respective officers, directors or employees acting on behalf of
MKS or any MKS Subsidiary or affiliate has taken, committed to take or been alleged to have taken any action which would cause MKS or any MKS Subsidiary or affiliate to be in violation of the Corruption of Foreign Public Officials Act
(Canada) (and the regulations promulgated thereunder) or any applicable Law of similar effect of any other jurisdiction (including the Foreign Corrupt Practices Act of the United States) and, to the knowledge of MKS, no such action has been
taken by any of its agents, representatives or other Persons acting on behalf of MKS or any MKS Subsidiary or affiliate. 

  

	 	(ff)	United States Securities Laws. The MKS Common Shares are held of record (within the meaning of Rule 12g5-1 under the 1934 Act) by fewer than 500 persons; or the
MKS Common Shares are held by fewer than 300 holders resident in the United States (calculated as required by Rule 12g3-2(a)); or MKS has complied with the requirements of Rule 12g3-2(b) under the 1934 Act. 

 

	 	(gg)	Voting Requirements. The affirmative votes at the MKS Meeting or any adjournment or postponement thereof of (i) at least two-thirds of the votes cast on the
Arrangement Resolution by the MKS Common Shareholders present in person or represented by proxy at the MKS Meeting, voting as a single class, and (ii) such other approval as is required by MI 61-101, are the only votes of the MKS Common
Shareholders necessary to approve or adopt the Arrangement or to consummate the Arrangement. 

  

	 	(hh)	No Collateral Benefit. Except as disclosed in Schedule 3.1(hh) to the MKS Disclosure Letter, to the knowledge of MKS and assuming the accuracy of PTC’s
representation and warranty in Section 4.1(h), no related party of MKS (within the meaning of MI 61-101) will receive a “collateral benefit” (within the meaning of such instrument) as a consequence of the Arrangement. Except as
disclosed in Schedule 3.1(hh) to the MKS Disclosure Letter, no minority approval (within the meaning of such instrument and assuming that no related party of MKS will receive a collateral benefit as a consequence of the Arrangement and assuming the
accuracy of PTC’s representation and warranty in Section 4.1(h)) and no formal valuation (within the meaning of such instrument) is required under such instrument in connection with the Arrangement. 

  
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	 	(ii)	Confidentiality and Standstill Agreements. MKS has made available to PTC true and complete copies, except for information which would identify any counterparty
thereto, of (i) any agreement which is still in force and effect pursuant to which it has agreed to provide to any Person other than PTC access to information in respect of MKS and/or any of the MKS Subsidiaries in the context of any direct or
indirect acquisition or purchase of MKS (through any form of share or asset purchase) and such Person has agreed to keep the information confidential and (ii) any agreement which is still in force and effect containing a “standstill”
provision in respect of the acquisition of MKS Common Shares or the acquisition by MKS of the shares of another Person, other than, in each case, the Confidentiality Agreement. 

 

	 	(jj)	Indemnity Claims. To the knowledge of MKS, there is no claim, action, proceeding or investigation pending or threatened against or relating to any director or
officer of MKS or any MKS Subsidiary in respect of which the director or officer could be entitled to claim an indemnity from MKS, either pursuant to the by-laws of MKS or any such MKS Subsidiary or otherwise, before or by any Governmental Entity or
other third party nor to the knowledge of MKS are there any events or circumstances which would reasonably be expected to give rise to any such claim, action, proceeding or investigation. 

 

	 	(kk)	Cash. As of the date hereof, (A) the MKS Cash set forth in Schedule 3.1(kk)(A) of the MKS Disclosure Schedule is accurate; and (B) the MKS Cash
forecast set forth in Schedule 3.1(kk)(B) of the MKS Disclosure Letter has been prepared using assumptions that reflect MKS’s management’s intended course, as at March 28, 2011, for the periods covered, given the judgement of
MKS’s management as to the most probable set of economic conditions, provided that nothing in this Section 3.1(kk)(B) shall be construed as a representation or warranty that (i) such assumptions will prove to be accurate, or
(ii) actual results for the forecast period will not vary from such MKS Cash forecast or that such variations will not be material. 

  

	3.2	Survival of Representations and Warranties 

 The representations and warranties of MKS contained in this Agreement shall not survive the completion of the Arrangement and shall expire and be terminated on the earlier of the Effective Time and the
date on which this Agreement is terminated in accordance with its terms. 
 ARTICLE 4 

REPRESENTATIONS AND WARRANTIES OF PTC AND ACQUIRECO 

 

	4.1	Representations and Warranties 

 Each of PTC and Acquireco hereby represents and warrants to MKS as follows, and acknowledges that MKS is relying upon such representations and warranties in connection with the entering into of this
Agreement: 

  
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	 	(a)	Organization and Qualification. PTC is duly incorporated and validly existing under the laws of The Commonwealth of Massachusetts and has full corporate power
and authority to own its assets and conduct its business as now owned and conducted. Acquireco is duly incorporated as an unlimited liability company under the laws of Nova Scotia and has full corporate power and authority to own its assets and
conduct its business as now owned and conducted. Each of PTC and Acquireco has full power and authority to own its respective assets and conduct its respective business as now owned and conducted. 

 

	 	(b)	Authority Relative to this Agreement. Each of PTC and Acquireco has the requisite power and authority to enter into this Agreement and to perform its respective
obligations hereunder. The execution and delivery of this Agreement by each of PTC and Acquireco and the consummation by each of PTC and Acquireco of the transactions contemplated by this Agreement have been duly authorized by each of PTC and
Acquireco and no other proceedings on the part of either PTC or Acquireco are necessary to authorize this Agreement. This Agreement has been duly executed and delivered by each of PTC and Acquireco and constitutes a valid and binding obligation of
each of PTC and Acquireco, enforceable by MKS against PTC and Acquireco in accordance with its terms, except as the enforcement thereof may be limited by bankruptcy, insolvency and other applicable Laws affecting the enforcement of creditors’
rights generally and subject to the qualification that equitable remedies may be granted only in the discretion of a court of competent jurisdiction. 

  

	 	(c)	No Conflict. The execution and delivery by PTC and Acquireco of this Agreement and the performance by each of PTC and Acquireco of its respective obligations
hereunder and the completion of the Arrangement will not violate, conflict with or result in a breach of any provision of the respective constating documents of PTC or Acquireco and will not: (a) violate, conflict with or result in a breach of:
(i) any agreement, contract, indenture, deed of trust, mortgage, bond, instrument, Authorization, licence or permit to which PTC or Acquireco is a party or by which PTC or Acquireco is bound where such event would materially impact the ability
of PTC or Acquireco to complete the Arrangement, including the Credit Facilities; or (ii) subject to the government filings and other matters set forth in Subsection 4.1(d) below, any Law to which PTC or Acquireco is subject or by which PTC or
Acquireco is bound; (b) give rise to any right of termination, or the acceleration of any indebtedness, under any such agreement, contract, indenture, Authorization, deed of trust, mortgage, bond, instrument, licence or permit of PTC or
Acquireco where such event would materially impair the ability of PTC or Acquireco to complete the Arrangement. 

  

	 	(d)	 Governmental Authorization. The execution, delivery and performance by PTC and Acquireco of this Agreement and the consummation by PTC and
Acquireco of the Arrangement require no consent, approval or authorization of or any action by or in respect of, or filing, recording, registering or publication with, or notification to any Governmental Entity other than (i) any approvals
required by the Interim Order; (ii) the Final Order; (iii) filings with the Director under the OBCA; (iv) the Regulatory Approvals (including the German Competition Act

  
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Approval); (v) compliance with any applicable Securities Laws and rules and policies of the NASDAQ; (v) filings under U.S. state Securities Laws; and (vi) any actions or filings
the absence of which would not be reasonably expected to have, individually or in the aggregate, prevent materially impede or materially delay the ability of PTC or Acquireco to consummate the Transactions or perform any of its respective
obligations hereunder. 

  

	 	(e)	Financing. PTC has delivered to MKS a copy of an executed confirmation of commitment letter (the “Confirmation Commitment Letter”), dated as of
the date hereof, from JPMorgan Chase Bank, N.A. (the “Lenders”) addressed to PTC. Pursuant to the Confirmation Commitment Letter and subject to the terms and conditions contained therein, the Lenders have confirmed the availability
under PTC’s existing credit facilities (the “Credit Facilities”) of not less than U.S.$300 million in aggregate principal amount of debt financing to PTC on or before the Effective Date (the “Debt Financing”)
for the purpose of funding, through Acquireco, all amounts payable by PTC or Acquireco pursuant to the Arrangement. The obligations to fund the commitments described in the Confirmation Commitment Letter are not subject to any condition other than
those set forth therein. PTC has no knowledge of any fact or occurrence that has or would reasonably be expected to (i) make any of the assumptions or statements set forth in the Confirmation Commitment Letter inaccurate, (ii) cause the
Confirmation Commitment Letter to be ineffective or the Debt Financing to not be available, or (iii) cause any of the conditions set forth in the Confirmation Commitment Letter not to be satisfied. The Credit Facilities are in full force and
effect and PTC is not in default thereunder and no event has occurred, including the execution, delivery and performance by PTC of this Agreement or the consummation of the transactions contemplated hereby, which, with notice or lapse of time or
both, would constitute a default thereunder. Subject to the terms and conditions of the Confirmation Commitment Letter, the funds contemplated to be received pursuant to the Debt Financing, together with available funds and cash equivalents that PTC
has on hand, holds or has available to it (collectively, the “Available Cash”), are sufficient to provide that PTC will, at the Effective Time, have sufficient funds to pay the aggregate Consideration under the Arrangement and to
make all other payments required to be made or caused to be made by PTC or Acquireco pursuant to the Arrangement in accordance with the terms of this Agreement. 

 

	 	(f)	Acquireco. Acquireco is and will, at all times up to the Effective Time, be an indirect, wholly-owned Subsidiary of PTC. 

 

	 	(g)	 Litigation. There is no claim, action, suit, proceeding, investigation or arbitration pending or, to the knowledge of PTC, threatened against
PTC or any of its Subsidiaries, including, for greater certainty, Acquireco, which, if adversely determined, would materially impair the ability of PTC or Acquireco to complete the Arrangement or impede or materially delay the completion of the
Arrangement nor, to the knowledge of PTC, are there any events or circumstances which could reasonably be expected to give rise to any such claim, action, suit, proceeding, investigation or arbitration. Neither PTC nor any of its Subsidiaries,

  
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including, for greater certainty, Acquireco, is subject to any outstanding order, writ, injunction or decree which would materially impair the ability of PTC or Acquireco to complete the
Arrangement or impede or materially delay the completion of the Arrangement. 

  

	 	(h)	MKS Securities. None of PTC, Acquireco or any of their respective affiliates or any “joint actor” (as defined in MI 61-101) thereof beneficially owns
or exercises control or direction over any securities of MKS. None of PTC, Acquireco or any of their respective affiliates or any “joint actor” has any agreement, commitment or understanding with any “related party” of MKS that
would constitute a “collateral benefit” under MI 61-101. 

  

	4.2	Survival of Representations and Warranties 

 The representations and warranties of PTC contained in this Agreement shall not survive the completion of the Arrangement and shall expire and be terminated on the earlier of the Effective Time and the
date on which this Agreement is terminated in accordance with its terms. 
 ARTICLE 5 

COVENANTS 
  

	5.1	Covenants of MKS Regarding the Conduct of Business 

 MKS covenants and agrees that, during the period from the date of this Agreement until the earlier of the Effective Time and the time that this Agreement is terminated in accordance with its terms, unless
PTC shall otherwise agree in writing, such consent not to be unreasonably withheld, conditioned or delayed, or as otherwise expressly contemplated or permitted by this Agreement or set forth in Schedule 5.1 of the MKS Disclosure Letter: 

 

	 	(a)	MKS shall, and shall cause each of the MKS Subsidiaries to, conduct its and their respective businesses only in, not take any action except in, and maintain their
respective facilities in, the ordinary course of business and to use commercially reasonable efforts to preserve intact, in all material respects, its and their present business organization and goodwill, to preserve intact MKS and its properties
and assets, including all MKS IP, to keep available the services of its officers and employees as a group and to maintain satisfactory relationships consistent with past practice with suppliers, tenants, employees, Governmental Entities and others
having business relationships with them; 

  

	 	(b)	without limiting the generality of Subsection 5.1(a), MKS shall not, directly or indirectly, and shall cause each of the MKS Subsidiaries not to:

  

	 	(i)	 issue, sell, grant, award, pledge, dispose of, encumber or agree to issue, sell, grant, award, pledge, dispose of or encumber any MKS Shares, any MKS
Options, any MKS RSUs or any warrants, calls, conversion privileges or rights of any kind to acquire any MKS Shares or other securities or any shares of the MKS Subsidiaries (including, for greater

  
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certainty, MKS Options and MKS RSUs) other than pursuant to the exercise of existing MKS Options and vesting of MKS RSUs; 

 

	 	(ii)	except in the ordinary course of business, sell, pledge, lease, dispose of, mortgage, encumber or agree to sell, pledge, dispose of, mortgage, encumber or otherwise
transfer any of the properties or assets of MKS or any interest in any of its properties or any of its other assets; 

  

	 	(iii)	amend or propose to amend the articles, by-laws or other constating documents or the terms of any securities of MKS or any MKS Subsidiary; 

 

	 	(iv)	enter into, or, waive, release, grant, transfer, exercise, modify or amend any existing contractual rights under, any Material Contract, other than entering into any
Material Contract of the nature described in clause (e) of the definition of Material Contract for the purposes of generating revenue; 

  

	 	(v)	split, combine or reclassify any outstanding MKS Common Shares or the securities of any MKS Subsidiary; 

 

	 	(vi)	redeem, purchase or offer to purchase any MKS Common Shares or other securities of MKS or any shares or other securities of the MKS Subsidiaries;

  

	 	(vii)	other than the dividend for the quarter ended January 31, 2011 payable on April 14, 2011 to MKS Common Shareholders of record on March 31, 2011 at the
rate of US$0.20 per MKS Common Share declare, set aside or pay any dividend or other distribution (whether in cash, securities or property or any combination thereof) in respect of any MKS Common Shares except, in the case of any of MKS’s
wholly-owned Subsidiaries, for dividends payable to MKS; 

  

	 	(viii)	reorganize, amalgamate or merge MKS or any MKS Subsidiary with any other Person, other than MKS or a MKS Subsidiary; 

 

	 	(ix)	reduce the stated capital of the shares of MKS; 

  

	 	(x)	(A) purchase any property or assets of any other Person exceeding $250,000 other than in the ordinary course of business and capital expenditures permitted pursuant to
Section 5.1(e)(i), (B) acquire or agree to acquire by merger, amalgamation, acquisition of shares or assets or otherwise, any Person, or (C) make any investment either by purchase of shares or securities, contributions of capital
(other than to wholly-owned Subsidiaries) or property transfer in or to any other Person; 

  

	 	(xi)	incur, create, assume or otherwise become liable for any indebtedness for borrowed money or issue any debt securities, or guarantee, endorse or otherwise as an
accommodation become responsible for, the obligations of any other Person or make any loans or advances; 

  
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	 	(xii)	adopt a plan of liquidation or resolutions providing for the liquidation or dissolution of MKS or any MKS Subsidiary; 

 

	 	(xiii)	pay, discharge, settle, satisfy, compromise, waive, assign or release any claims, liabilities or obligations other than the payment, discharge or satisfaction of
liabilities reflected or reserved against in MKS’s financial statements or incurred in the ordinary course of business; 

  

	 	(xiv)	waive, release, grant, transfer, exercise, modify or amend in any material respect, (i) any material existing contractual rights in respect of any properties or
assets, or (ii) any material Authorization, in each case other than in the ordinary course of business; 

  

	 	(xv)	take any action or fail to take any action which action or failure to act would result in the material loss, expiration or surrender of, or the loss of any material
benefit under, or cause any Governmental Entities to institute proceedings for the suspension, revocation or limitation of rights under, any material Permits necessary to conduct its businesses as now conducted; or fail to prosecute with
commercially reasonable due diligence any pending applications to any Governmental Entities; 

  

	 	(xvi)	accelerate accounts receivable, incur business expenses other than in the ordinary course of business or delay the payment of business expenses, in each case other than
in the ordinary course of business; or 

  

	 	(xvii)	(A) increase the benefits payable or to become payable; (B) enter into or modify any employment, termination, severance, change of control, retention, completion
or similar agreements or arrangements; or (C) grant any bonuses, salary increases, severance, termination, retention or completion pay, in each case other than to or with (y) any employee of MKS or any MKS Subsidiary in the ordinary course
of business consistent with MKS’s current human resources practices, as required by applicable Law, pursuant to Contracts entered into as of the date of this Agreement, or pursuant to MKS’s existing bonus program in the ordinary course of
business consistent with MKS’s current human resources practices and (z) officers and directors of MKS or any MKS Subsidiary as required by applicable Law or pursuant to Contracts entered into as of the date of this Agreement.

  

	 	(c)	except as contemplated or permitted by this Agreement, MKS shall not, and shall cause each of the MKS Subsidiaries not to, establish, adopt, enter into, amend or waive
any performance or vesting criteria or accelerate vesting, exercisability or funding under any bonus, profit sharing, thrift, incentive, compensation, stock option, restricted stock, pension, retirement, deferred compensation, savings, welfare,
employment, termination, severance or other employee benefit plan, agreement, trust, fund, policy or arrangement for the benefit or welfare of any directors, officers, current or former employees of MKS or the MKS Subsidiaries;

  
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	 	(d)	MKS shall use its reasonable commercial efforts to cause its current insurance (or re-insurance) policies not to be cancelled or terminated or any of the coverage
thereunder to lapse, unless simultaneously with such termination, cancellation or lapse, replacement policies underwritten by insurance and re-insurance companies of nationally recognized standing providing coverage equal to or greater than the
coverage under the cancelled, terminated or lapsed policies for substantially similar premiums are in full force and effect; 

  

	 	(e)	MKS shall: 

  

	 	(i)	except as set forth in Schedule 5.1(e)(i) to the MKS Disclosure Letter, not incur any capital expenditures or enter into any agreement obligating MKS or any MKS
Subsidiary to provide for future capital expenditures, in each case in excess of $250,000 in the aggregate; and 

  

	 	(ii)	not make any change in its methods of accounting, except as required by GAAP or United States generally accepted accounting principles or as required due to its
transition to IFRS or applicable Law; 

  

	 	(f)	MKS shall and shall cause each of the MKS Subsidiaries to: 

  

	 	(i)	duly and timely file all Tax Returns required to be filed by it on or after the date hereof and before the Effective Date and all such Tax Returns will be true,
complete and correct in all material respects; 

  

	 	(ii)	timely withhold, collect, remit and pay all Taxes which are to be withheld, collected, remitted or paid by it to the extent due and payable; 

 

	 	(iii)	not make or rescind any material express or deemed election relating to Taxes; 

 

	 	(iv)	not consent to any extension or waiver of any limitation period with respect to Taxes; 

 

	 	(v)	not amend any Tax Return or change any of its methods of reporting income, deductions or accounting for income Tax purposes from those employed in the preparation of
its income Tax Return for the taxation year ended April 30, 2006 and each subsequent taxation year, except as may be required by applicable Laws; and 

  

	 	(vi)	not knowingly undertake any reorganization of MKS or any MKS Subsidiary or enter into any transaction or series of transactions that would have the effect of preventing
PTC from obtaining the benefit of a “tax cost bump” pursuant to paragraphs 88(1)(c) and 88(1)(d) of the Tax Act in respect of non-depreciable capital property directly owned by MKS at the Effective Time, and for the purposes of this clause
(vi) the following shall be excepted (A) transactions or activities undertaken in the ordinary course of business consistent with prior practice and (B) transactions contemplated by this Agreement or completed at the request of PTC.

  
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	 	(g)	MKS shall not initiate any material discussions, negotiations or filings with any Governmental Entity with respect to the Arrangement or the transactions contemplated
by this Agreement without the prior consent of PTC, such consent not to be unreasonably withheld, delayed or conditioned, and further agrees to provide PTC with prompt (and in any event within one business day) notice of any material communication
(whether oral or written) from a Governmental Entity, including a copy of any written communication; and 

  

	 	(h)	MKS shall not authorize or propose, or enter into or modify any contract, agreement, commitment or arrangement, to do any of the matters prohibited by the other
Subsections of this Section 5.1. 

  

	5.2	Covenants of MKS Relating to the Arrangement 

 During the period from the date of this Agreement until the earlier of the Effective Time and the time that this Agreement is terminated in accordance with its terms, MKS shall, and shall cause the MKS
Subsidiaries to, perform all obligations required to be performed by MKS or any MKS Subsidiary under this Agreement, co-operate with PTC in connection therewith, and do all such other acts and things within its power as may be necessary or desirable
in order to consummate and make effective the transactions contemplated in this Agreement and, without limiting the generality of the foregoing or the obligations in Section 2.5 of this Agreement, MKS shall and, where applicable, shall cause
the MKS Subsidiaries to: 
  

	 	(a)	use commercially reasonable efforts to obtain the requisite approval of the MKS Common Shareholders to the Arrangement Resolution at the MKS Meeting in accordance with
Section 2.3(a), including participating in presentations to MKS Common Shareholders and submitting the Arrangement Resolution for approval by the MKS Common Shareholders at the MKS Meeting, except to the extent that this Agreement has been
terminated in accordance with its terms; 

  

	 	(b)	defend all lawsuits or other legal, regulatory or other proceedings against MKS challenging or affecting this Agreement or the consummation of the transactions
contemplated hereby; 

  

	 	(c)	promptly advise PTC of any written notice of dissent or purported exercise by any MKS Common Shareholder of Dissent Rights received by MKS in relation to the
Arrangement Resolution and any withdrawal of Dissent Rights received by MKS and, subject to applicable Laws, any written communications sent by or on behalf of MKS to any MKS Common Shareholder exercising or purporting to exercise Dissent Rights in
relation to the Arrangement Resolution and MKS shall not make any payment or settlement offer, or agree to any such settlement, prior to the Effective Time with respect to any such notice of dissent or purported exercise of Dissent Rights unless PTC
shall have given its prior written consent to such payment, settlement offer or settlement, as applicable; 

  

	 	(d)	promptly (and in any event within 12 hours) advise PTC orally and, if then requested, in writing of any event, change or development that has a MKS Material Adverse
Effect or resulted in any material adverse change in any fact set forth in the MKS Disclosure Letter; 

  
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	 	(e)	furnish promptly to PTC a copy of each notice, report, schedule or other document or communication delivered or filed by MKS in connection with the Arrangement or the
MKS Meeting with any Governmental Entity; 

  

	 	(f)	provide, on a timely basis, all commercially reasonable cooperation as may be reasonably requested by PTC to promote the Arrangement with the holders of shares of PTC,
including participation in investor meetings upon reasonable notice; 

  

	 	(g)	provide, on a timely basis, all reasonable cooperation in connection with any dealings by PTC with any Taxing Authority or Governmental Entity with oversight of any Tax
matters concerning any element of the Arrangement (including, without limitation, any element that may be effected after the Effective Time by PTC) as may be requested by PTC; and 

 

	 	(h)	unless otherwise directed by PTC, at least five business days prior to the Effective Time, take any and all actions required to terminate each MKS Benefit Plan
qualified under Section 401(a) of the IRC and containing an IRC Section 401(k) cash or deferred arrangement as of a date no later than one day prior to the Effective Time, but subject to the consummation of the Arrangement, which actions
shall include providing to PTC executed resolutions terminating such plan(s). 

  

	5.3	Covenants of PTC Relating to the Arrangement 

 PTC shall, and shall cause its Subsidiaries, including Acquireco, to perform all obligations required to be performed by PTC under this Agreement, co-operate with MKS in connection therewith, and do all
such other acts and things as may be necessary or desirable in order to consummate and make effective, as soon as reasonably practicable, the transactions contemplated by this Agreement and, without limiting the generality of the foregoing or the
obligations in Section 2.5 of this Agreement, PTC shall: 
  

	 	(a)	at all times from the date hereof to the Effective Date, have available the Available Cash and the Debt Financing, and shall provide a certificate of the Chief
Financial Officer or other authorized officer of PTC as to the availability of the Available Cash and the Debt Financing within three business days upon the reasonable request of MKS to provide such certificate and notify MKS on a timely basis if it
has any reason to believe that the Available Cash and the Debt Financing will not be available as contemplated by this Agreement; 

  

	 	(b)	furnish promptly to MKS a copy of each notice, report, schedule or other document or communication delivered or filed by PTC in connection with the Arrangement or the
MKS Meeting with any Governmental Entity; 

  

	 	(c)	defend all lawsuits or other legal, regulatory or other proceedings against PTC challenging or affecting this Agreement or the consummation of the transactions
contemplated hereby; 

  
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	 	(d)	within 15 business days after the Effective Time, file a registration statement on Form S-8 (the “S-8 Registration Statement”) with the SEC to register
the PTC Shares to be issued from time to time after the Effective Time upon exercise of Replacement Options issued pursuant to the terms of this Agreement and the Plan of Arrangement; PTC shall use commercially reasonable efforts to maintain the
effectiveness of the S-8 Registration Statement for so long as Replacement Options remain outstanding; 

  

	 	(e)	prior to or in connection with the Effective Time, submit to NASDAQ a notification of additional shares with respect to PTC Shares to be issued upon the due exercise of
the Replacement Options. 

  

	5.4	Mutual Covenants 

  

	 	(a)	Subject to the terms and conditions of this Agreement, each of the Parties shall use their commercially reasonable efforts to take, or cause to be taken, all actions
and to do, or cause to be done, all things necessary, proper or advisable under applicable Law to consummate the transactions as soon as practicable, including: 

 

	 	(i)	using, and in the case of MKS, causing the MKS Subsidiaries to use, their commercially reasonable efforts to obtain all required Regulatory Approvals. Without limiting
the generality of the foregoing, the Parties shall file as soon as practicable a request to the Bundeskartellamt that it grant to the Parties clearance of the Arrangement. PTC shall be responsible for the filing fee that must be submitted in
connection with seeking German Competition Act Approval. The Parties shall each use their commercially reasonable efforts to satisfy, as soon as reasonably possible, all requests for additional information and documentation received from the
Bundeskartellamt in respect of the German Competition Act Approval. The Parties will coordinate and cooperate in exchanging information and supplying assistance that is reasonably requested by the other Party, including providing the other Party
with copies in advance and reasonable opportunity to comment on all notices, submissions, filings and information supplied to or filed with the Bundeskartellamt to obtain the German Competition Act Approval (except for notices and information which
PTC or MKS, acting reasonably, considers highly confidential and competitively sensitive, which then shall be provided on an outside counsel only basis to external counsel for the other Party), and all notices and correspondence received from the
Commissioner. PTC and its counsel, and MKS and its counsel, shall not attend any meetings in person or by telephone where substantive issues are discussed with the Bundeskartellamt or any Governmental Entity in connection with the transactions
contemplated by this Agreement unless it provides the other Party with a reasonable opportunity to attend such meetings; 

  

	 	(ii)	 using, and in the case of MKS, causing the MKS Subsidiaries to use, and, in the case of PTC, causing its Subsidiaries to use, commercially reasonable
efforts to satisfy (or cause the satisfaction of) the conditions precedent to its obligations hereunder as set forth in Article 6 to the extent 

  
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the same is within its control and to take, or cause to be taken, all other actions and to do, or cause to be done, all other things necessary, proper or advisable under all applicable Laws to
consummate the Arrangement, except as permitted or contemplated by this Agreement; 

  

	 	(iii)	carrying out the terms of the Interim Order and the Final Order applicable to it and complying promptly with all requirements which applicable Laws may impose on it or
its Subsidiaries with respect to the transactions contemplated hereby; 

  

	 	(iv)	preparing and filing as promptly as practicable, and in any event prior to the expiration of any legal deadline, all necessary documents, registrations, statements,
petitions, filings and applications for the Regulatory Approvals and using their commercially reasonable efforts to obtain and maintain such Regulatory Approvals; and 

 

	 	(v)	not taking any action, or failing to take any commercially reasonable action, or permit any of its Subsidiaries to take any action or fail to take any commercially
reasonable action, which action or failure is inconsistent with this Agreement or which would reasonably be expected to impede or delay the completion of the Arrangement, in each case, except as specifically permitted by this Agreement.

  

	 	(b)	The Parties shall cooperate in the preparation of any application for the Regulatory Approvals and any other orders, clearances, consents, rulings, exemptions,
no-action letters and approvals reasonably deemed by PTC or MKS to be necessary to discharge their respective obligations under this Agreement or otherwise advisable under applicable Laws in connection with the Arrangement and this Agreement. In
connection with the foregoing, each Party shall furnish, on a timely basis, all information as may be reasonably required by another Party or by any Governmental Entity to effectuate the foregoing actions, and each covenants that, to its knowledge,
no information so furnished by it in writing shall contain a misrepresentation. 

  

	 	(c)	Each Party shall consult with, and consider in good faith any suggestions or comments made by, any other Party with respect to the documentation relating to the
Regulatory Approvals process, provided that, to the extent any such document contains any information or disclosure relating to a Party or any affiliate of a Party, such Party shall have approved such information or disclosure prior to the
submission or filing of any such document (which approval shall not be unreasonably withheld or delayed). 

  

	 	(d)	 Subject to applicable Laws, the Parties shall cooperate with and keep each other fully informed as to the status of and the processes and proceedings
relating to obtaining the Regulatory Approvals, and shall promptly notify each other of any communication from any Governmental Entity in respect of the Arrangement or this Agreement, and each Party shall not make any submissions or filings,
participate in any meetings or any material conversations with any Governmental Entity in respect of any filings, investigations or other inquiries related to the 

  
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Arrangement or this Agreement unless it consults with the other Parties in advance and, to the extent not precluded by such Governmental Entity, gives the other Parties the opportunity to review
drafts of any submissions or filings, or attend and participate in any communications or meetings. Notwithstanding the foregoing, submissions, filings or other written communications with any Governmental Entity may be redacted as necessary before
sharing with any other Party to address reasonable attorney-client or other privilege or confidentiality concerns, provided that external legal counsel to PTC and MKS shall receive non-redacted versions of drafts or final submissions, filings
or other written communications to any Governmental Entity on the basis that the redacted information shall not be shared with their respective clients. The Parties shall request that the Regulatory Approvals be processed by the applicable
Governmental Entity on an expedited basis and, to the extent that a public hearing is held, the Parties shall request the earliest possible hearing date for the consideration of the Regulatory Approvals. 

 

	 	(e)	Each of PTC and MKS shall promptly notify the other if at any time before the Effective Time it becomes aware that: 

 

	 	(i)	any application for a Regulatory Approval or other filing under applicable Laws made in connection with this Agreement, the Arrangement or the transactions contemplated
herein contains a misrepresentation; or 

  

	 	(ii)	any Regulatory Approval or other order, clearance, consent, ruling, exemption, no-action letter or other approval applied for as contemplated herein which has been
obtained contains or reflects or was obtained following submission of any application, filing, document or submission as contemplated herein that contained a misrepresentation, 

such that an amendment or supplement to such application, filing, document or submission or order, clearance, consent, ruling, exemption,
no-action letter or approval may be necessary or advisable. In such case, the Parties shall cooperate in the preparation of such amendment or supplement as required. 
  

	 	(f)	Notwithstanding anything in this Agreement to the contrary, if any objections are asserted with respect to the Arrangement under any applicable Law, or if any
proceeding is instituted or threatened by any Governmental Entity challenging or which would reasonably be expected to lead to a challenge of any of the Arrangement as violative of or not in compliance with the requirements of any applicable Law,
the Parties shall use their commercially reasonable efforts consistent with the terms hereof to resolve such proceeding so as to allow the Effective Time to occur on or prior to the Outside Date. 

 

	5.5	Pre-Acquisition Reorganization 

  

	 	(a)	 MKS agrees that, upon the written request by PTC, MKS shall, and shall cause each MKS Subsidiary to, at the expense of PTC, (i) effect such
reorganizations of MKS or the MKS Subsidiaries’ business, operations and assets or such other transactions as PTC may request, acting reasonably (each a “Pre-Acquisition

  
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Reorganization”) and (ii) co-operate with PTC and its advisors in order to determine the nature of the Pre-Acquisition Reorganizations that might be undertaken and the manner in
which they might most effectively be undertaken; provided, however, that neither MKS nor any MKS Subsidiary need affect any Pre-Acquisition Reorganization which, in the opinion of MKS, acting reasonably, (A) would require the approval of the
MKS Common Shareholders, (B) would be prejudicial to MKS, any MKS Subsidiary or the MKS Common Shareholders in any respect, (C) would reduce the Consideration to be received by MKS Common Shareholders or any amount to be received by any
holder of MKS Options pursuant to Section 2.9(a) or holder of MKS RSU pursuant to Section 2.9(b), (D) would interfere with the ongoing operations of MKS or any MKS Subsidiary, (E) unless agreed by MKS, would require any filing
with, notification to or approval of any Governmental Entity or third party prior to the Effective Date, (F) would require MKS or any MKS Subsidiary to contravene any applicable Laws or its respective organizational documents or any Contract,
(G) would result in Taxes being imposed on, or other adverse Tax consequences to, the MKS Common Shareholders generally that is incrementally greater than the Taxes imposed on or other consequences to the MKS Common Shareholders in connection
with the completion of the Arrangement in the absence of such Pre-Acquisition Reorganization, or (H) would impede or materially delay the completion of the Arrangement. Furthermore, any such Pre-Acquisition Reorganization shall not become
effective until immediately prior to the Effective Time following the satisfaction or waiver of all conditions precedent to completion of the Arrangement. PTC acknowledges and agrees that no Pre-Acquisition Reorganization shall be considered in
determining whether a representation, warranty or covenant of MKS hereunder has been breached. PTC shall provide written notice to MKS of any proposed Pre-Acquisition Reorganization at least ten (10) business days prior to the Effective Time.
Upon receipt of such notice, PTC and MKS shall work co-operatively and use commercially reasonable efforts to prepare prior to the Effective Time all documentation necessary and do all such other acts and things as are necessary to give effect to
such Pre-Acquisition Reorganization, provided that such cooperation shall not require any director, officer, employee or agent of MKS or any MKS Subsidiary to take any action in any capacity other than as a director, officer, employee or agent of
MKS or a MKS Subsidiary. PTC shall indemnify MKS, the MKS Subsidiaries and their respective officers, directors, employees, agents, advisors and representatives from and against any and all liabilities, losses, damages, claims, costs, expenses,
interest, awards, judgements and penalties suffered or incurred by any of them in connection with or as a result of any Pre-Acquisition Reorganization. 

 

	 	(b)	If the Arrangement is not completed, PTC shall pay the implementation costs of the Pre-Acquisition Reorganization and any direct or indirect costs and liabilities of
MKS and the MKS Subsidiaries, including employment costs, Taxes and liabilities as well as any costs, taxes and liabilities that may be incurred to unwind any such Pre-Acquisition Reorganization (including actual out-of-pocket costs and expenses for
filing fees and external counsel). 

  
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	5.6	Cash Deposit 

 MKS shall
take all action to ensure that it shall have, 24 hours prior to the Effective Time and immediately prior to the Effective Time (including amounts transferred to the Depositary as required by the Plan of Arrangement), in cash not less than the amount
contemplated for payment by MKS for the Vested MKS Options under Subsection 3.1(b) of the Plan of Arrangement. In connection with the completion of the Plan of Arrangement and as set forth in the Plan of Arrangement, at or before the Effective Time,
MKS will deposit or cause to be deposited with the Depositary the aggregate money required for payments in respect of the Vested MKS Options pursuant to Section 3.1(b) of the Plan of Arrangement. 

ARTICLE 6 

CONDITIONS 
  

	6.1	Mutual Conditions Precedent 

 The respective obligations of the Parties to complete the Arrangement are subject to the fulfillment of each of the following conditions precedent on or before the Effective Time, each of which may only
be waived with the mutual written consent of the Parties: 
  

	 	(a)	the MKS Common Shareholder Approval shall have been obtained in accordance with the Interim Order; 

 

	 	(b)	the Interim Order and the Final Order shall each have been obtained on terms consistent with this Agreement, and shall not have been set aside or modified in a manner
unacceptable to MKS and PTC, acting reasonably, on appeal or otherwise; 

  

	 	(c)	no Governmental Entity shall have enacted, issued, promulgated, enforced or entered any Law which is then in effect and has the effect of making the Arrangement illegal
or otherwise preventing or prohibiting consummation of the Arrangement or the other transactions contemplated by this Agreement; 

  

	 	(d)	no proceeding shall be pending or overtly threatened by or before any Governmental Entity seeking an injunction, judgment, decree or other order to prevent or challenge
the consummation of the Arrangement or the other transactions contemplated by this Agreement; 

  

	 	(e)	German Competition Act Approval shall have been obtained; and 

  

	 	(f)	this Agreement shall not have been terminated pursuant to Article 8. 

  

	6.2	Additional Conditions Precedent to the Obligations of PTC 

 The obligation of PTC to complete the Arrangement is subject to the fulfillment of each of the following conditions precedent on or before the Effective Time (each of which is for the exclusive benefit of
PTC and may be waived by PTC): 
  

	 	(a)	 all covenants of MKS under this Agreement to be performed on or before the Effective Time which have not been waived by PTC in writing shall have been

  
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duly performed by MKS in all material respects and PTC shall have received a certificate of MKS addressed to PTC and dated the Effective Date, signed on behalf of MKS by two senior executive
officers of MKS (on MKS’s behalf and without personal liability), confirming the same as at the Effective Time; 

  

	 	(b)	the representations and warranties of MKS set forth in Article 3 shall be true and correct in all respects (disregarding for purposes of this Subsection 6.2(b) any
materiality, or MKS Material Adverse Effect qualification contained in any such representation or warranty) as of the Effective Time as if made at and as of such time (except that any such representation and warranty that by its terms speaks
specifically as of the date of this Agreement or another date shall be true and correct in all respects as of such date), except where the failure to be so true and correct in all respects has not had or would not have a MKS Material Adverse Effect,
and PTC shall have received a certificate of MKS addressed to PTC and dated the Effective Date, signed on behalf of MKS by two senior executive officers of MKS (on MKS’s behalf and without personal liability), confirming the same as at the
Effective Time; 

  

	 	(c)	there shall not be pending or threatened in writing any suit, action or proceeding by any Governmental Entity that is reasonably likely to result in a:

  

	 	(i)	prohibition or restriction on the acquisition by PTC of any MKS Common Shares, restriction or prohibition of the consummation of the Arrangement or a Person obtaining
from MKS or PTC any material damages directly or indirectly in connection with the Arrangement; 

  

	 	(ii)	prohibition or material limit on the ownership by PTC of MKS or any material portion of its business; or 

 

	 	(iii)	imposition of material limitations on the ability of PTC to acquire or hold, or exercise full rights of ownership of, any MKS Common Shares, including the right to vote
the MKS Common Shares to be acquired by it on all matters properly presented to the MKS Common Shareholders; 

  

	 	(d)	holders of no more than 10% of the MKS Common Shares shall have exercised Dissent Rights; 

 

	 	(e)	the MKS Board shall have taken all necessary action required by, and in accordance with, the MKS Stock Option Plans and the MKS RSU Plan in order to give effect to
Section 2.9; and 

  

	 	(f)	the MKS Board shall have suspended the MKS Employee Share Purchase Plan effective April 6, 2011 and shall have terminated such plan and returned all cash and
property to each participant in the MKS Employee Share Purchase Plan in accordance with the terms thereof prior to the Effective Time. 

 The foregoing conditions will be for the sole benefit of PTC and may be waived by it in whole or in part at any time. 

  
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	6.3	Additional Conditions Precedent to the Obligations of MKS 

 The obligation of MKS to complete the Arrangement is subject to the fulfillment of each of the following conditions precedent on or before the Effective Time (each of which is for the exclusive benefit of
MKS and may be waived by MKS): 
  

	 	(a)	all covenants of PTC and Acquireco under this Agreement to be performed on or before the Effective Time which have not been waived by MKS in writing shall have been
duly performed by PTC or Acquireco in all material respects and MKS shall have received a certificate of PTC, addressed to MKS and dated the Effective Date, signed on behalf of PTC by two of its senior executive officers (on PTC’s behalf and
without personal liability), confirming the same as of the Effective Date; 

  

	 	(b)	the representations and warranties of PTC set forth in this Agreement shall be true and correct in all respects, as of the Effective Time, as though made on and as of
the Effective Time except where the failure or failures of all such representations and warranties to be so true and correct in all respects would not reasonably be expected individually or in the aggregate to materially impair PTC’s ability to
complete the Arrangement or impede or materially delay completion of the Arrangement, and MKS shall have received a certificate signed on behalf of PTC by two senior executive officers of PTC (on PTC’s behalf and without personal liability) to
this effect; and 

  

	 	(c)	PTC shall have complied with its obligations under Section 2.10 and the Depositary shall have confirmed receipt of the Aggregate Consideration.

 The foregoing conditions will be for the sole benefit of MKS and may be waived by it in whole or in part at any
time. 
  

	6.4	Satisfaction of Conditions 

The conditions precedent set out in Section 6.1, Section 6.2 and Section 6.3 shall be conclusively deemed to have been
satisfied, waived or released following filing of the Articles of Arrangement with the consent of the Parties in accordance with the terms of this Agreement. 
 ARTICLE 7 
 ADDITIONAL AGREEMENTS 

 

	7.1	MKS Non-Solicitation 

  

	 	(a)	On and after the date of this Agreement, except as otherwise expressly provided in this Section 7.1, MKS and the MKS Subsidiaries shall not, directly or
indirectly, through any officer, director, employee, advisor, representative, agent or otherwise: 

  

	 	(i)	 make, solicit, assist, initiate, encourage or otherwise facilitate any inquiries, proposals or offers from any other Person (including any of its

  
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officers or employees) relating to or that may reasonably be expected to lead to, any Acquisition Proposal; 

 

	 	(ii)	engage in any discussions or negotiations regarding, or offer or provide any information with respect to, or otherwise co-operate in any way with, or assist or
participate in, facilitate or encourage, any effort or attempt by any other Person to make or complete, any Acquisition Proposal, provided that MKS may advise any Person making an unsolicited Acquisition Proposal that such Acquisition Proposal does
not constitute (and the MKS Board does not reasonably expect it to lead to) a Superior Proposal when the MKS Board has so determined; 

  

	 	(iii)	effect a MKS Change in Recommendation; or 

  

	 	(iv)	accept or enter into, or publicly propose to accept or enter into, any letter of intent, agreement in principle, agreement, arrangement or undertaking related to any
Acquisition Proposal. 

  

	 	(b)	MKS warrants and covenants that it has ceased and shall cause to be terminated any existing solicitations, discussions or negotiations with any Person (other than PTC
and its affiliates) with respect to any proposal or matter that constitutes, or may reasonably be expected to lead to, an Acquisition Proposal and, in connection therewith, MKS has discontinued access to any of its confidential information (and will
not establish or allow access to any of its confidential information, or any data room, virtual or otherwise) and shall as soon as possible request, and exercise all rights it has to require, the return or destruction of all confidential information
previously provided to any Person in connection therewith to the extent such information has not already been returned or destroyed. MKS further warrants that it has not entered into, participated in, or facilitated any solicitations, discussions or
negotiations with any Person (other than PTC) with respect to any proposal or matter that constitutes, or may reasonably be expected to lead to, an Acquisition Proposal since February 28, 2011. MKS agrees not to release any third party (other
than PTC) from any confidentiality, non-solicitation or standstill agreement to which such third party is a party, or terminate, modify, amend or waive the terms thereof and MKS undertakes to enforce, or cause the MKS Subsidiaries to enforce, all
standstill, non-disclosure, non-disturbance, non-solicitation and similar covenants that it or any MKS Subsidiary has entered into prior to the date hereof or enters into after the date hereof. MKS represents and warrants that it has not waived any
standstill or similar agreement or restriction to which MKS or a MKS Subsidiary is a party. MKS shall not waive the application of the MKS Shareholder Rights Plan in favour of any third party (other than a waiver thereof deemed to have occurred
under the terms of Section 5.18(b) of the MKS Shareholder Rights Plan) except as requested in writing by PTC. 

  

	 	(c)	 From and after the date of this Agreement, MKS shall promptly provide notice to PTC of any unsolicited bona fide Acquisition Proposal or any
proposal, inquiry or offer that could reasonably be expected to lead to an Acquisition Proposal or any amendments to the terms of any Acquisition Proposal or any request for non-public information relating to MKS or any MKS Subsidiary in connection
with 

  
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such an Acquisition Proposal or for access to the properties, books or records of MKS or any MKS Subsidiary by any Person (other than PTC or any of its affiliates) that informs MKS, any member of
the MKS Board or such MKS Subsidiary that it is considering making, or has made, an Acquisition Proposal. Such notice to PTC shall be made first orally and then promptly (and in any event within 24 hours of receipt thereof by MKS) in writing and
shall indicate the identity of the Person making such proposal, inquiry or contact, all material terms thereof and such other details of the proposal, inquiry or contact as are known to MKS, and shall include copies of any such proposal, inquiry,
offer or request which is in written form or any amendment to any of the foregoing received by MKS. MKS shall keep PTC promptly and fully informed of the status, including any change to the material terms, of any such Acquisition Proposal, offer,
inquiry or request and will respond promptly to all inquiries by PTC with respect thereto. 

  

	 	(d)	 Notwithstanding any other provision of this Agreement, if at any time following the date of this Agreement and prior to obtaining the MKS Common
Shareholder Approval, MKS receives a request for non-public information from a Person who makes, has made or proposes to MKS an unsolicited, bona fide written Acquisition Proposal that did not result from a breach of this Section 7.1 or
any breach of any confidentiality or standstill agreement or restriction in favour of MKS by the Person making such Acquisition Proposal, and (x) the MKS Board determines, in its good faith judgment, after consultation with its financial
advisors and external legal counsel, that such Acquisition Proposal constitutes or could reasonably be expected to lead to a Superior Proposal, and (y) in the opinion of the MKS Board, in its good faith judgment and after consultation with its
financial and external legal counsel, the failure to provide such Person with access to information regarding MKS and the MKS Subsidiaries would be inconsistent with the fiduciary duties of the MKS Board, then, and only in such case, MKS may
(i) enter into, participate, facilitate, encourage and maintain discussions or negotiations with, and otherwise co-operate with or assist, the Person making such Acquisition Proposal, and (ii) provide such Person with access to information
regarding MKS and the MKS Subsidiaries in response to requests for information by such Person for a period of review not to exceed the Restricted Period, subject only to the execution of a confidentiality and standstill agreement which is customary
in such situations and which, in any event and taken as a whole, is no less favourable to MKS and no less restrictive to such Person than the Confidentiality Agreement (disregarding, and in no event must such confidentiality agreement contain, any
provision set forth in the amendment to the Confidentiality Agreement dated March 7, 2011); provided however that the confidentiality and standstill agreement may permit the Person making the Acquisition Proposal to propose confidentially to
the MKS Board any amendment to such Acquisition Proposal with the permission of the MKS Board and provided further that MKS sends a copy of any such confidentiality and standstill agreement to PTC promptly upon its execution and PTC is provided with
a list of, and, at the request of PTC, copies of, the information provided to such Person and, concurrently with such information being provided to such Person, provided with access to similar information to which such Person was provided and which
was not previously provided to PTC. Any such confidentiality and standstill 

  
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agreement may not include any provision calling for an exclusive right to negotiate with MKS during the period in which this Agreement is in force and may not restrict MKS or any MKS Subsidiary
from complying with this Section 7.1. In no event shall MKS provide to any Person any documents, information or materials provided to MKS by PTC. 

  

	 	(e)	(I) Subject to Subsection 7.1(e)(II), MKS agrees that it will not accept, approve, endorse, recommend or enter into any agreement, understanding or arrangement (a
“Proposed Agreement”), other than a confidentiality and standstill agreement as contemplated by Subsection 7.1(d) with any Person providing for or to facilitate any Acquisition Proposal unless: 

 

	 	(i)	the MKS Board determines in its good faith judgment, after consultation with its financial advisors and external legal counsel, that the Acquisition Proposal
constitutes a Superior Proposal; 

  

	 	(ii)	the MKS Common Shareholder Approval has not been obtained; 

  

	 	(iii)	MKS has complied with Subsections 7.1(a) through 7.1(d) inclusive; 

  

	 	(iv)	MKS has provided PTC with a notice in writing that there is a Superior Proposal together with all documentation related to and detailing the Superior Proposal,
including a copy of any Proposed Agreement relating to such Superior Proposal, and a written notice from the MKS Board regarding the value in financial terms that the MKS Board has, in consultation with its financial advisors, determined should be
ascribed to any non-cash consideration offered under the Superior Proposal, such documents to be so provided to PTC not less than five business days prior to the proposed acceptance, approval, endorsement or recommendation or execution of the
Proposed Agreement by MKS; 

  

	 	(v)	Five business days shall have elapsed from the date PTC received the notice and documentation referred to in Subsection 7.1(e)(I)(iv) from MKS (such five business day
period being referred to herein as the “Matching Period”) and, if PTC has proposed to amend the terms of the Arrangement in accordance with Subsection 7.1(f), the MKS Board shall have determined in its good faith judgment, after
consultation with its financial advisors and external legal counsel, that the Acquisition Proposal is a Superior Proposal compared to the Arrangement as the same would be amended by the proposed amendment to the terms of the Arrangement by PTC;

  

	 	(vi)	MKS concurrently terminates this Agreement pursuant to Subsection 8.2(a)(iv)(B) and contemporaneously enters into the Proposed Agreement with respect to such Superior
Proposal; and 

  

	 	(vii)	MKS has previously, or concurrently will have, paid to PTC the MKS Termination Payment; 

  
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 and MKS further agrees that it will not withdraw, modify or qualify (or publicly propose to
withdraw, modify or qualify) in any manner adverse to PTC the approval or recommendation of the Arrangement, nor accept, approve or recommend any Acquisition Proposal (other than the Arrangement) unless the requirements of Subsections 7.1(e)(I)(i)
through 7.1(e)(I)(v) have been satisfied. 
 (II) Notwithstanding the foregoing, MKS shall be permitted to negotiate, accept,
approve and enter into a Proposed Agreement to proceed with a Superior Proposal, but only if: 
  

	 	(A)	all of the terms and conditions of the Proposed Agreement shall only become effective, binding and enforceable on and against MKS upon any termination of this Agreement
in accordance with its terms, provided that the terms and conditions of the Proposed Agreement may be effective, binding and enforceable on and against the other parties thereto upon and after execution thereof, 

 

	 	(B)	the requirements of Subsection 7.1(e)(I)(i) to (iii) have been complied with, 

 

	 	(C)	contemporaneously with entering into such Proposed Agreement, MKS provides the notice to PTC contemplated in Subsection 7.1(e)(I)(iv), and 

 

	 	(D)	the Proposed Agreement shall provide that it is null and void and deemed never to have been delivered if the MKS Board enters into an amended agreement with PTC as
contemplated by Subsection 7.1(f); 

 provided that, notwithstanding MKS has entered into a Proposed Agreement
contemplated by this Subsection 7.1(e)(II) in respect of a Superior Proposal, MKS shall comply with the requirements of Subsection 7.1(e)(I)(v) and Subsection 7.1(f). 
  

	 	(f)	 MKS acknowledges and agrees that, during the five business day periods referred to in Subsections 7.1(e)(I)(iv) and 7.1(e)(I)(v) or such longer period
as MKS may approve for such purpose, PTC shall have the opportunity, but not the obligation, to propose to amend the terms of this Agreement and the Plan of Arrangement in writing and MKS shall co-operate with PTC with respect thereto, including
negotiating in good faith with PTC to enable PTC to make such amendments to the terms and conditions of this Agreement and the Plan of Arrangement as PTC deems appropriate and as would enable PTC to proceed with the Arrangement and any related
transactions on such amended terms. The MKS Board will review any written proposal by PTC to amend the terms of the Arrangement in order to determine, in good faith in the exercise of its fiduciary duties, whether PTC’s proposal to amend the
Arrangement would result in the Acquisition Proposal not being a Superior Proposal compared to the Arrangement as the same would be amended by the proposed amendment to the terms of the Arrangement. If the

  
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MKS Board so determines, MKS shall enter into an amended agreement with PTC reflecting such proposed written amendments. 

 

	 	(g)	The MKS Board shall promptly reaffirm its recommendation of the Arrangement by press release after: (x) any Acquisition Proposal which the MKS Board determines not
to be a Superior Proposal is publicly announced or made; or (y) the MKS Board determines that a proposed amendment by PTC to the terms of the Arrangement would result in the Acquisition Proposal which has been publicly announced or made not
being a Superior Proposal, and PTC has so amended the terms of the Arrangement and the Parties have entered into an amendment to this Agreement. Subject to applicable Law, PTC and its counsel shall be given reasonable opportunity to review and
comment on the form and content of any such press release, recognizing that whether or not such comments are appropriate will be determined by MKS, acting reasonably. 

 

	 	(h)	 Nothing in this Agreement shall prevent the MKS Board from (A) responding through a directors’ circular or otherwise as required by
applicable Securities Laws to an Acquisition Proposal, provided, however, that, notwithstanding the MKS Board shall be permitted to make such response, the MKS Board shall not be permitted to take, agree or resolve to take any action prohibited by
Subsections 7.1(a)(iii) or (iv) except as expressly permitted by Subsections 7.1(d) and (e). PTC and its counsel shall be given reasonable opportunity to review and comment on the form and content of any such response, recognizing that whether
or not such comments are appropriate will be determined by MKS, acting reasonably, and (B) calling, in accordance with applicable Law, a meeting of the MKS Common Shareholders requisitioned in compliance with the OBCA by one or more MKS Common
Shareholders provided that such requisitioned meeting may only occur after the MKS Meeting and the MKS Board will not, subject to the prior written consent of PTC to the contrary, call such requisitioned meeting prior to the date which is 20
calendar days from the date of receipt of the requisition by MKS (or the business day immediately preceding such
20th calendar day if that calendar day is not a business
day). Further, nothing in this Agreement shall prevent the MKS Board from making any disclosure to the securityholders of MKS if the MKS Board determines in its good faith judgment after consultation with its external legal counsel that the failure
to make such disclosure would be inconsistent with the fiduciary duties of the MKS Board or such disclosure is otherwise required under applicable Law or stock exchange rules, provided, however, that, notwithstanding the MKS Board shall be permitted
to make such disclosure, the MKS Board shall not be permitted to take, agree or resolve to take any action prohibited by Subsections 7.1(a)(iii) or (iv) except as expressly permitted by Subsections 7.1(d) and (e). PTC and its counsel shall be
given reasonable opportunity to review and comment on the form and content of any such response or disclosure, recognizing that whether or not such comments are appropriate will be determined by MKS, acting reasonably. 

 

	 	(i)	 MKS acknowledges and agrees that each successive modification of any Acquisition Proposal shall constitute a new Acquisition Proposal for the purposes
of this Section 7.1 and PTC shall be afforded a new five business day period in 

  
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which to exercise its rights pursuant to Subsection 7.1(f) in respect of each such Acquisition Proposal. For greater certainty, each such successive modification shall not constitute a new
Acquisition Proposal for purposes of Subsection 7.1(d) and, in any event, shall not give rise to an additional Restricted Period or extend a Restricted Period that has previously commenced pursuant to Subsection 7.1(d). 

 

	 	(j)	MKS shall ensure that the officers, directors and employees of MKS and the MKS Subsidiaries and any investment bankers or other advisors or representatives retained by
MKS and/or a MKS Subsidiary in connection with the transactions contemplated by this Agreement are aware of the provisions of this Section, and MKS shall be responsible for any breach of this Section 7.1 by such officers, directors, employees,
investment bankers, advisors or representatives. 

  

	 	(k)	If MKS provides PTC with the notice of a Superior Proposal contemplated in Subsection 7.1(e)(I)(iv) on a date that is less than five business days prior to the MKS
Meeting, if requested by PTC, MKS shall adjourn the MKS Meeting to a date that is not less than five business days and not more than eight business days after the date of such notice, provided, however, that the MKS Meeting shall not be adjourned or
postponed to a date later than the seventh (7) business day prior to the Outside Date. 

  

	7.2	Access to Information; Confidentiality 

 From the date hereof until the earlier of the Effective Time and the termination of this Agreement pursuant to its terms, subject to compliance with applicable Law and the terms of any Contracts, MKS
shall, and shall cause its representatives to afford to PTC and to representatives of PTC such access as PTC may reasonably require at all reasonable times, including for the purpose of facilitating integration business planning, to its officers,
employees, agents, advisors, consultants, properties, assets, books, records and Contracts, and shall furnish PTC with all data and information as PTC may reasonably request. PTC acknowledges and agrees that information furnished pursuant to this
Section 7.2 shall be subject to the terms and conditions of the Confidentiality Agreement. PTC agrees that MKS may have a representative present at any interview or meeting with any employee or Governmental Entity. 

 

	7.3	Notices of Certain Events 

  

	 	(a)	Each Party will give prompt notice to the other of the occurrence, or failure to occur, at any time from the date hereof until the earlier to occur of the termination
of this Agreement pursuant to its terms and the Effective Time of any event or state of facts which occurrence or failure would, or would be likely to: 

  

	 	(i)	cause any of the representations or warranties of such Party contained herein to be untrue or inaccurate in any material respect on the date hereof or at the Effective
Time (provided that this paragraph (a) shall not apply in the case of any event or state of facts resulting from the actions or omissions of a Party which are required under this Agreement); or 

  
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	 	(ii)	result in the failure to comply with or satisfy any covenant, condition or agreement to be complied with or satisfied by such Party hereunder prior to the Effective
Time, 

 provided, however, that the delivery of any notice pursuant to this Section 7.3 shall not
limit or otherwise affect the remedies available hereunder to the Party receiving that notice. 
  

	 	(b)	PTC may not elect not to complete the transactions contemplated hereby pursuant to the conditions set forth herein or any termination rights arising therefrom under
Subsection 8.2(a)(iii)(B) and no payments are payable as a result of such termination pursuant to Section 8.3 unless, prior to the Effective Date, PTC has delivered a written notice to MKS specifying in reasonable detail all breaches of
covenants, representations and warranties or other matters which PTC is asserting as the basis for the non-fulfillment or the applicable condition or termination right, as the case may be. If any such notice is delivered, provided that MKS is
proceeding diligently to cure such matter and such matter is capable of being cured, PTC may not terminate this Agreement until the earlier of the Outside Date and the expiration of a period of 10 business days from such notice.

  

	7.4	Insurance and Indemnification 

  

	 	(a)	Prior to the Effective Time, MKS shall obtain and pay for “tail” insurance policies with a claims period of at least six years from and after the Effective
Time from an insurance carrier with the same or better credit rating as MKS’s current insurance carrier with respect to directors’ and officers’ liability insurance and fiduciary liability insurance with benefits and levels of
coverage not less favourable than those provided under MKS’s existing policies with respect to matters existing or occurring at or prior to the Effective Time (including in connection with this Agreement or the transactions or actions
contemplated hereby). If MKS or PTC for any reason fail to obtain such “tail” insurance policies as of the Effective Time, for a period of six years after the Effective Time, PTC will, or will cause MKS and/or its successors to, maintain
in effect directors’ and officers’ liability insurance covering those persons who are currently covered by MKS’s directors’ and officers’ liability insurance policy with respect to claims arising from facts or events that
occurred on or before the Effective Time on terms comparable (and no less favourable) to those applicable to the current directors and officers of MKS or any MKS Subsidiary. 

 

	 	(b)	 From and after the Effective Time, PTC will fulfill, and will cause MKS and/or its successors to fulfill and honour in all respects its obligations
pursuant to any indemnification agreements between MKS and the present and former directors or officers of MKS or any Subsidiary thereof in effect immediately prior to the Effective Time to the extent that they are disclosed in Schedule 7.4(b) to
the MKS Disclosure Letter and any indemnification provision under the articles or by-laws of MKS or applicable Laws, in each case, as in effect on the 

  
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date hereof and permitted by applicable Laws. PTC shall cause MKS and/or its successors to not amend, repeal or otherwise modify the provisions with respect to exculpation and indemnification
contained in the articles or by-laws of MKS as in effect on the date hereof for a period of six years from the Effective Time in any manner that would adversely affect the rights thereunder of individuals who, prior to the Effective Time, were
directors or officers of MKS. 

  

	 	(c)	The provisions of this Section 7.4 are intended for the benefit of, and shall be enforceable by, each insured or indemnified Person, his or her heirs and his or
her legal representatives and, for such purpose, MKS hereby confirms that it is acting as agent on their behalf. Furthermore, this Section 7.4 shall survive the termination of this Agreement as a result of the occurrence of the Effective Date
for a period of six (6) years. 

 ARTICLE 8 

TERM, TERMINATION, AMENDMENT AND WAIVER 
  

	8.1	Term 

 This Agreement
shall be effective from the date hereof until the earlier of the Effective Time and the termination of this Agreement in accordance with its terms. 
  

	8.2	Termination 

  

	 	(a)	This Agreement may be terminated at any time prior to the Effective Time (notwithstanding any approval of this Agreement or the Arrangement Resolution by the MKS Common
Shareholders and/or by the Court, as applicable): 

  

	 	(i)	by mutual written agreement of MKS and PTC; 

  

	 	(ii)	by either MKS or PTC, if: 

  

	 	(A)	the Effective Time shall not have occurred on or before the Outside Date, except that the right to terminate this Agreement under this Subsection 8.2(a)(ii)(A)
shall not be available to any Party whose failure to fulfill any of its obligations or breach of any of its representations and warranties under this Agreement has been a principal cause of, or resulted in, the failure of the Effective Time to occur
by the Outside Date; 

  

	 	(B)	after the date hereof, there shall be enacted or made any applicable Law that makes consummation of the Arrangement illegal or otherwise prohibited or enjoins MKS or
PTC from consummating the Arrangement and such applicable Law or enjoinment shall have become final and non-appealable; 

  

	 	(C)	the MKS Meeting shall have been held and the MKS Common Shareholder Approval shall not have been obtained at the MKS Meeting or at any adjournment or postponement
thereof in accordance with the Interim Order. 

  

	 	(iii)	by PTC, if: 

  
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	 	(A)	prior to the Effective Time: (1) the MKS Board fails to unanimously recommend the Arrangement in the MKS Circular or shall have effected a MKS Change in
Recommendation; (2) PTC requests in writing that the MKS Board reaffirm its recommendation that MKS Common Shareholders vote in favour of the Arrangement Resolution and the MKS Board shall not have done so by the fifth business day following
receipt of such request (and in any case prior to the MKS Meeting) (it being understood and agreed that publicly taking no position or a neutral position with respect to the Arrangement Resolution until the fifth business day following receipt of an
Acquisition Proposal shall not, and shall be deemed not to, be a failure to re-affirm such recommendation); or (3) MKS shall have breached Section 7.1 in any material respect; 

 

	 	(B)	subject to Section 7.3, a breach of any representation or warranty or failure to perform any covenant or agreement on the part of MKS set forth in this Agreement
shall have occurred that would cause the conditions set forth in Subsection 6.2(a) or Subsection 6.2(b) not to be satisfied, and such conditions are incapable of being satisfied by the earlier of (A) 30 days following PTC’s delivery of
written notice of such breach and (B) the Outside Date, provided that PTC is not then in breach of this Agreement; 

  

	 	(C)	PTC has been notified in writing by MKS of a Proposed Agreement in accordance with Subsection 7.1(e)(I)(iv) (including as contemplated in Subsection 7.1(e)(II)(C)), and
either: (i) PTC does not deliver an amended Arrangement proposal within five business days of receipt by PTC of the Proposed Agreement , provided that PTC will not be entitled to terminate this Agreement pursuant to this Subsection
8.2(a)(iii)(C)(i) unless and until such five business day period has expired; or (ii) PTC delivers an amended Arrangement proposal pursuant to Subsection 7.1(f) but the MKS Board determines, in good faith and in the exercise of its fiduciary
duties, that the Acquisition Proposal provided in the Proposed Agreement continues to be a Superior Proposal in comparison to the amended Arrangement terms offered by PTC; or 

 

	 	(D)	there shall have occurred after the date hereof up to and including the Effective Date, a MKS Material Adverse Effect, provided that PTC has delivered to MKS written
notice of such MKS Material Adverse Effect, 30 days have elapsed since receipt by MKS of such notice and such MKS Material Adverse Effect has not been cured. 

 

	 	(iv)	by MKS, if: 

  

	 	(A)	 subject to Section 7.3, a breach of any representation or warranty or failure to perform any covenant or agreement on the part of PTC

  
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set forth in this Agreement shall have occurred that would cause the conditions set forth in Subsection 6.3(a) or Subsection 6.3(b) not to be satisfied, and such conditions are incapable of being
satisfied by the earlier of (A) 30 days following MKS’s delivery of written notice of such breach and (B) the Outside Date provided that MKS is not then in breach of this Agreement; or 

 

	 	(B)	it enters into a binding written agreement with respect to a Superior Proposal (other than (I) a confidentiality and standstill agreement permitted by Subsection
7.1(d) and (II) any Proposed Agreement contemplated by Subsection 7.1(e)(II) but, in the case of any such Proposed Agreement, only until the expiry of the Matching Period after which the proviso in this clause (II) will no longer apply and MKS will
be entitled to terminate this Agreement in accordance with this Subsection 8.2(a)(iv)(B) without reference to such proviso), subject to compliance with Section 7.1 and provided that no termination under this Subsection 8.2(a)(iv)(B) shall be
effective unless and until MKS shall have paid to PTC the amount required to be paid pursuant to Section 8.3. 

  

	 	(b)	The Party desiring to terminate this Agreement pursuant to this Section 8.2 (other than pursuant to Subsection 8.2(a)(i)) shall give notice of such termination to
the other Party, specifying in reasonable detail the basis for such Party’s exercise of its termination right. 

  

	 	(c)	If this Agreement is terminated pursuant to this Section 8.2, this Agreement shall become void and be of no further force or effect without liability of any Party
(or any shareholder, director, officer, employee, agent, consultant or representative of such Party) to any other Party hereto, except that the provisions of Subsections 5.5(a) and (b), this Subsection 8.2(c) and Sections 8.3, 9.3, 9.6 and 9.7
and all related definitions set forth in Section 1.1 and the provisions of Confidentiality Agreement shall survive any termination hereof pursuant to Subsection 8.2(a). 

 

	8.3	Expenses and Termination Payments 

  

	 	(a)	Except as otherwise provided herein, all fees, costs and expenses incurred in connection with this Agreement and the Plan of Arrangement shall be paid by the Party
incurring such fees, costs or expenses. 

  

	 	(b)	For the purposes of this Agreement: 

  

	 	(i)	“Payment” means a MKS Expense Payment or MKS Termination Payment; 

 

	 	(ii)	“MKS Expense Payment” means an amount equal to $1.46 million; and 

 

	 	(iii)	“MKS Termination Payment” means an amount equal to $11.55 million. 

  
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	 	(c)	For the purposes of this Agreement, “MKS Termination Payment Event” means the termination of this Agreement: 

 

	 	(i)	by PTC pursuant to Subsection 8.2(a)(iii)(A) or Subsection 8.2(a)(iii)(C), in either case prior to the MKS Meeting; 

 

	 	(ii)	by PTC pursuant to Subsection 8.2(a)(iii)(B) due to the intentional and material breach or fraud of MKS; 

 

	 	(iii)	by MKS pursuant to Subsection 8.2(a)(iv)(B); or 

  

	 	(iv)	by either Party pursuant to Subsection 8.2(a)(ii)(A) or by either Party pursuant to Subsection 8.2(a)(ii)(C), but only if, in these termination events, (x) prior
to such termination a bona fide Acquisition Proposal for MKS shall have been made or publicly announced by any Person other than PTC and (y) within twelve months following the date of such termination, MKS or one or more of the MKS
Subsidiaries (A) enters into a definitive agreement in respect of one or more Acquisition Proposals (whether or not such Acquisition Proposal is the same Acquisition Proposal referred to in clause (x) above) provided that at least one of
such Acquisition Proposals is consummated (whether or not in such twelve month period) or (B) there shall have been consummated one or more Acquisition Proposals (whether or not such Acquisition Proposal is the same Acquisition Proposal
referred to in clause (x) above) for MKS; provided that, MKS shall be entitled to deduct from the MKS Termination Payment an amount equal to the MKS Expense Payment if any such fee was paid to PTC and provided further that, for the purpose of
this Subsection 8.3(c)(iv), all references to “20%” in the definition of Acquisition Proposal shall be deemed to be references to “50%”. 

 If a MKS Termination Payment Event occurs, MKS shall pay the MKS Termination Payment to PTC by wire transfer of immediately available funds, as follows: 

 

	 	(A)	if the MKS Termination Payment is payable pursuant to Subsection 8.3(c)(iv), the MKS Termination Payment shall be payable concurrently upon the consummation of the
Acquisition Proposal referred to therein, and any MKS Expense Payment paid shall be credited towards payment of the MKS Termination Payment; 

  

	 	(B)	if the MKS Termination Payment is payable pursuant to Subsection 8.3(c)(i) or 8.3(c)(ii), the MKS Termination Payment shall be payable within two (2) business days
following such termination; or 

  

	 	(C)	if the MKS Termination Payment is payable pursuant to Subsection 8.3(c)(iii), the MKS Termination Payment shall be payable prior to or simultaneously with such
termination. 

  
 - 76 -

	 	(d)	For the purposes of this Agreement, “MKS Expense Payment Event” means the termination of this Agreement: 

 

	 	(i)	by PTC or MKS pursuant to Subsection 8.2(a)(ii)(C); or 

  

	 	(ii)	by PTC pursuant to Subsection 8.2(a)(iii)(B) other than due to the intentional and material breach or fraud of MKS. 

If a MKS Expense Payment Event occurs, MKS shall pay the MKS Expense Payment to PTC by wire transfer of immediately available funds
within two (2) business days following such termination. 
  

	 	(e)	Each of the Parties acknowledges that the agreements contained in this Section 8.3 are an integral part of the transactions contemplated in this Agreement and
that, without those agreements, the Parties would not enter into this Agreement. MKS acknowledges that all of the payment amounts set out in this Section 8.3 are payments of liquidated damages which are a genuine pre-estimate of the damages
which PTC will suffer or incur as a result of the event giving rise to such payment and the resultant termination of this Agreement and are not penalties. MKS irrevocably waives any right it may have to raise as a defence that any such liquidated
damages are excessive or punitive. For greater certainty, PTC agrees that, upon any termination of this Agreement under circumstances where PTC is entitled to a Payment and such Payment is paid in full, PTC shall be precluded from any other remedy
against MKS at Law or in equity or otherwise (including, without limitation, an order for specific performance), and shall not seek to obtain any recovery, judgment, or damages of any kind, including consequential, indirect, or punitive damages,
against MKS or any MKS Subsidiary or any of their respective directors, officers, employees, partners, managers, members, shareholders or affiliates or their respective representatives in connection with this Agreement or the transactions
contemplated hereby, provided however, that payment by MKS of a Payment shall not be in lieu of any damages or any other payment or remedy available in the event of any wilful and intentional breach by MKS of any of its obligations under this
Agreement. 

  

	 	(f)	Nothing in this Section 8.3 shall preclude a Party from seeking injunctive relief to restrain any breach or threatened breach of the covenants or agreements set
forth in this Agreement, the Confidentiality Agreement or the Plan of Arrangement or to obtain specific performance of any such covenants or agreements, without the necessity of posting bond or security in connection therewith.

  

	 	(g)	In no event shall the MKS Termination Payment be payable more than once. 

  

	8.4	Amendment 

 Subject to the
provisions of the Interim Order, the Plan of Arrangement and applicable Laws, this Agreement and the Plan of Arrangement may, at any time and from time to time before or after the holding of the MKS Meeting but not later than the Effective Time, be
amended by mutual written agreement of the Parties without further notice to or Authorization 

  
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on the part of the MKS Common Shareholders, and any such amendment may without limitation: 
  

	 	(a)	change the time for performance of any of the obligations or acts of the Parties; 

 

	 	(b)	waive any inaccuracies or modify any representation or warranty contained herein or in any document delivered pursuant hereto; 

 

	 	(c)	waive compliance with or modify any of the covenants herein contained and waive or modify performance of any of the obligations of the Parties; and

  

	 	(d)	waive compliance with or modify any mutual conditions precedent herein contained. 

 

	8.5	Waiver 

 Any Party may
(a) extend the time for the performance of any of the obligations or acts of the other Party, (b) waive compliance, except as provided herein, with any of the other Party’s agreements or the fulfilment of any conditions to its own
obligations contained herein, or (c) waive inaccuracies in any of the other Party’s representations or warranties contained herein or in any document delivered by the other Party; provided, however, that any such extension or waiver shall
be valid only if set forth in an instrument in writing by an authorized officer of such Party and, unless otherwise provided in the written waiver, will be limited to the specific breach or condition waived. 

ARTICLE 9 

GENERAL PROVISIONS 
  

	9.1	Privacy 

 Each Party shall
comply with applicable privacy Laws in the course of collecting, using and disclosing personal information about an identifiable individual (the “Transaction Personal Information”). PTC shall not disclose Transaction Personal
Information to any Person other than to its advisors who are evaluating and advising on the transactions contemplated by this Agreement. If PTC completes the transactions contemplated by this Agreement, PTC shall not, following the Effective Date,
without the consent of the individuals to whom such Transaction Personal Information relates or as permitted or required by applicable Law, use or disclose Transaction Personal Information: 

 

	 	(a)	for purposes other than those for which such Transaction Personal Information was collected by MKS prior to the Effective Date; and 

 

	 	(b)	which does not relate directly to the carrying on of the business of MKS or to the carrying out of the purposes for which the transactions contemplated by this
Agreement were implemented. 

 PTC shall protect and safeguard the Transaction Personal Information against
unauthorized collection, use or disclosure. PTC shall cause its advisors to observe the terms of this Section 9.1 and to protect and safeguard Transaction Personal Information in their possession. If this Agreement shall be terminated, PTC
shall promptly deliver to MKS all 

  
 - 78 -

 
Transaction Personal Information in its possession or in the possession of any of its advisors, including all copies, reproductions, summaries or extracts thereof, except, unless prohibited by
applicable Law, for electronic backup copies made automatically in accordance with the usual backup procedures of PTC. 
  

	9.2	Notices 

 All notices and
other communications given or made pursuant to this Agreement shall be in writing and shall be deemed to have been duly given and received on the day it is delivered, provided that it is delivered on a business day prior to 5:00 p.m. local time in
the place of delivery or receipt. However, if notice is delivered after 5:00 p.m. local time or if such day is not a business day then the notice shall be deemed to have been given and received on the next business day. Notice shall be sufficiently
given if delivered (either in Person, by courier service or other personal method of delivery), or if transmitted by facsimile or email to the Parties at the following addresses (or at such other addresses as shall be specified by any Party by
notice to the other given in accordance with these provisions): 
  

	 	(a)	if to PTC or Acquireco at: 

 140
Kendrick Street 
 Needham, MA 
 United States 02494 
  

			
	Attention:	  	Iain Michel, Senior Vice President, Corporate Development
	Facsimile:	  	(781) 370-5662
	Email:	  	imichel@ptc.com

 with a copy 

 

			
	Attention:	  	Aaron von Staats, Corporate Vice President, General Counsel & Secretary
	Facsimile:	  	(781) 370-5735
	Email:	  	avstaats@ptc.com

 with a copy (which shall not
constitute notice) to: 
 Osler, Hoskin & Harcourt LLP 

Suite 1900, 340 Albert Street 
 Ottawa, Ontario K1R 7Y6 
  

			
	Attention:	  	Elizabeth Walker
	Facsimile:	  	(613) 787-1060
	Email:	  	ewalker@osler.com

  

	 	(b)	if to MKS: 

 410 Albert Street

 Waterloo, Ontario N2L 3V3 

  
 - 79 -

			
	Attention:	  	General Counsel
	Facsimile:	  	(519) 884-2258
	Email:	  	larry.wasylishyn@mks.com
	
	with a copy (which shall not constitute notice) to:
	
	 McCarthy Tétrault LLP
 Box 48, Suite 5300
 Toronto Dominion Bank Tower

Toronto, ON M5K 1E6

		
	Attention:	  	Jonathan Grant
	Facsimile:	  	(416) 601-7604
	Email:	  	jgrant@mccarthy.ca

  

	9.3	Governing Law 

 This
Agreement shall be governed, including as to validity, interpretation and effect, by the Laws of the Province of Ontario and the Laws of Canada applicable therein. Each of the Parties hereby irrevocably attorns to the exclusive jurisdiction of the
courts of the Province of Ontario in respect of all matters arising under and in relation to this Agreement and the Arrangement and waives any defences to the maintenance of an action in the Courts of the Province of Ontario. 

 

	9.4	Appointment of Agent for Service 

 PTC nominates, constitutes and appoints Osler Hoskin & Harcourt LLP, Barristers and Solicitors, of the City of Ottawa, its true and lawful agent to accept service of process and to receive all
lawful notices in respect of any action arising under this Agreement (other than any notice that is to be given by one party to another pursuant to Section 9.2). Until due and lawful notice of the appointment of another and subsequent agent in
the Province of Ontario has been given to and accepted by MKS, service of process or of papers and such notices upon PTC will be accepted by Osler Hoskin & Harcourt LLP (at the address set forth in Section 9.2) as sufficient service.

  

	9.5	Time of Essence 

 Time
shall be of the essence in this Agreement. 
  

	9.6	Entire Agreement, Binding Effect and Assignment 

 This Agreement (including the exhibits and schedules hereto), the MKS Disclosure Letter and the Confidentiality Agreement constitute the entire agreement, and supersede all other prior agreements and
understandings, both written and oral, between the Parties, or any of them, with respect to the subject matter hereof and thereof and, except as expressly provided herein, this Agreement is not intended to and shall not confer upon any Person other
than the Parties any rights or remedies hereunder. Neither this Agreement nor any of the rights, interests or obligations hereunder may be assigned by either of the Parties without the prior written consent of the other Parties. 

  
 - 80 -

	9.7	No Liability 

 No director
or officer of PTC shall have any personal liability whatsoever to MKS under this Agreement, or any other document delivered in connection with the transactions contemplated hereby on behalf of PTC. No director or officer of MKS in his or her
capacity as a director or officer of MKS shall have any personal liability whatsoever to PTC or Acquireco under this Agreement, or any other document delivered in connection with the transactions contemplated hereby on behalf of MKS and the Parties
agree that the provisions of this sentence are intended for the benefit of, and shall be enforceable by, each director and officer of MKS, his or her heirs and his or her legal representatives and, for such purpose, MKS hereby confirms that it is
acting as agent on their behalf, and this Section 9.7 shall survive termination of this Agreement as a result of the occurrence of the Effective Date. 
  

	9.8	Severability 

 If any term
or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule or Law or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the
economic or legal substance of the transactions contemplated hereby is not affected in any manner materially adverse to any Party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the
Parties shall negotiate in good faith to modify this Agreement so as to effect the original intent of the Parties as closely as possible in an acceptable manner to the end that the transactions contemplated hereby are fulfilled to the fullest extent
possible. 
  

	9.9	Rules of Construction 

The Parties to this Agreement waive the application of any applicable Law or rule of construction providing that ambiguities in any
agreement or other document shall be construed against the party drafting such agreement or other document. 
  

	9.10	Counterparts, Execution 

This Agreement may be executed in one or more counterparts, each of which shall be deemed to be an original but all of which together
shall constitute one and the same instrument. The Parties shall be entitled to rely upon delivery of an executed facsimile or similar executed electronic copy of this Agreement, and such facsimile or similar executed electronic copy shall be legally
effective to create a valid and binding agreement between the Parties. 
 [Remainder of page intentionally left blank]

  
 - 81 -

 IN WITNESS WHEREOF PTC, Acquireco and MKS have caused this Agreement to be executed
as of the date first written above by their respective officers thereunto duly authorized. 
  

			
	PARAMETRIC TECHNOLOGY CORPORATION
		
	By:	 	 /s/ James E. Hepplemann

		 	Name: James E. Hepplemann
		 	Title: President & Chief Executive Officer
	
	PTC NS ULC
		
	By:	 	 /s/ Jeffrey D. Glidden

		 	Name: Jeffrey D. Glidden
		 	Title: President
	
	MKS INC.
		
	By:	 	 /s/ Gerald S. Hurlow

		 	Name: Gerald S. Hurlow
		 	Title: Lead Director

 [Signature Page –
Arrangement Agreement] 

 SCHEDULE A 
 PLAN OF ARRANGEMENT 
 UNDER SECTION 182 OF THE 

BUSINESS CORPORATIONS ACT (ONTARIO) 
 ARTICLE 1 
 DEFINITIONS AND INTERPRETATION 

 

	1.1	Definitions 

 In this Plan of Arrangement,
unless the context otherwise requires, capitalized terms used but not defined shall have the meanings ascribed to them below: 

“Acquireco” means an unlimited liability company incorporated under the laws of Nova Scotia that, immediately prior to
the Effective Time, is an indirect wholly-owned Subsidiary of PTC; 
 “Arrangement” means the arrangement of MKS
under Section 182 of the OBCA on the terms and subject to the conditions set out in this Plan of Arrangement, subject to any amendments or variations thereto made in accordance with Section 8.4 of the Arrangement Agreement or
Section 6.1 of this Plan of Arrangement or made at the direction of the Court in the Final Order; 
 “Arrangement
Agreement” means the arrangement agreement dated as of April 6, 2011 between PTC, Acquireco and MKS, as amended, amended and restated or supplemented prior to the Effective Date; 

“Arrangement Resolution” means the special resolution of the MKS Common Shareholders approving the Plan of Arrangement
which is to be considered at the MKS Meeting, and any amendments or variations thereto made in accordance with the provisions of this Agreement or made at the direction of the Court in the Interim Order; 

“Articles of Arrangement” means the articles of arrangement of MKS to be filed with the Director in compliance with the
OBCA after the Final Order is made, which shall be in form and content satisfactory to both MKS and PTC, each acting reasonably; 

“business day” means any day other than a Saturday, a Sunday or a statutory or civic holiday in Toronto, Ontario or
Boston, Massachusetts; 
 “Consideration” means the cash consideration to be received by the MKS Common
Shareholders pursuant to this Plan of Arrangement as consideration for each MKS Common Share outstanding immediately prior to the Effective Time, consisting of $26.20 cash per MKS Common Share; 

“Court” means the Ontario Superior Court of Justice (Commercial List). 

“Currency Exchange Rate” means the daily noon rate of exchange on the Effective Date for United States dollars expressed
in Canadian dollars as reported by the Bank of Canada or, in the event such daily noon rate of exchange is not available, such rate of 

 
exchange on such date for United States dollars expressed in Canadian dollars as may be deemed by PTC to be appropriate for such purpose; 

“Depositary” means any trust company, bank or financial institution agreed to in writing among the Parties for the
purpose of, among other things, distributing the Consideration to MKS Common Shareholders and such amount of cash to holders of MKS Options and MKS RSUs as they are entitled to under the Arrangement, each in accordance with this Plan of Arrangement;

 “Director” means the Director appointed pursuant to Section 278 of the OBCA acting under the OBCA;

 “Dissent Right” shall have the meaning ascribed thereto in Subsection 4.1(a); 

“Dissenting Shareholder” means a registered holder of MKS Common Shares who dissents in respect of the Arrangement in
strict compliance with the Dissent Rights and who is ultimately entitled to be paid fair value for its MKS Common Shares; 

“Dissenting Shares” means MKS Common Shares held by a Dissenting Shareholder who has demanded and perfected Dissent
Rights in respect of the MKS Common Shares in accordance with the Interim Order and who, as of the Effective Time, has not effectively withdrawn or lost such Dissent Rights; 
 “Effective Date” means the date the Arrangement becomes effective under the OBCA; 
 “Effective Time” means 12:01 a.m. (Toronto time) on the Effective Date; 
 “Exchange Ratio” means an amount, rounded to four (4) decimal places, determined by dividing (i) $26.20 by (ii) the product of the PTC VWAP multiplied by the Currency
Exchange Rate; 
 “Final Order” means the final order of the Court pursuant to Section 182(5)(f) of the
OBCA, in a form acceptable to MKS and PTC, each acting reasonably, approving the Arrangement, as such order may be amended by the Court (with the consent of both MKS and PTC, each acting reasonably) at any time prior to the Effective Date or, if
appealed, then, unless such appeal is withdrawn, the final order of the Court on appeal approving the Arrangement or affirming or amending the order of the Court approving the Arrangement in a form acceptable to MKS and PTC each acting reasonably;

 “final proscription date” shall have the meaning ascribed thereto in Section 5.4; 

“Former MKS Common Shareholders” means, at and following the Effective Time, the registered holders of MKS Common Shares
immediately prior to the Effective Time; 
 “Interim Order” means the interim order of the Court made pursuant
to Section 182(5) of the OBCA, in a form acceptable to both MKS and PTC, each acting reasonably, providing for, among other things, the calling and holding of the MKS Meeting, as the same may be amended by the Court with the consent of both MKS
and PTC, each acting reasonably; 

  
 A-2

 “IRC” means the United States Internal Revenue Code of 1986, as
amended; 
 “Letter of Transmittal” means the letter of transmittal to be forwarded by MKS to MKS Common
Shareholders together with the MKS Circular or such other equivalent form of letter of transmittal acceptable to PTC acting reasonably; 
 “Liens” means any hypothecs, mortgages, pledges, assignments, liens, charges, security interests, encumbrances and adverse rights or claims, other third party interest or encumbrance of
any kind, whether contingent or absolute, and any agreement, option, right or privilege (whether by Law, contract or otherwise) capable of becoming any of the foregoing; 
 “MKS” means MKS Inc., a corporation existing under the OBCA; 

“MKS Common Shareholders” means the registered and beneficial holders of the MKS Common Shares; 

“MKS Common Shares” means the common shares in the authorized capital of MKS; 

“MKS Meeting” means the special meeting of MKS Common Shareholders, including any adjournment or postponement thereof, to
be called and held in accordance with the Interim Order to consider the Arrangement Resolution and for any other purpose as may be set out in the MKS Circular (as agreed to with the prior written consent of PTC, such consent not to be unreasonably
withheld or delayed); 
 “MKS Shareholder Rights Plan” means the Shareholder Rights Plan Agreement dated
June 23, 2008 between MKS and CIBC Mellon Trust Company, as rights agent, as approved by the MKS Common Shareholders on August 28, 2008, as amended from time to time; 
 “OBCA” means the Business Corporations Act (Ontario) and the regulations made thereunder, as now in effect and as they may be promulgated or amended from time to time; and

 “Parties” means MKS, PTC and Acquireco, and “Party” means any of them; 

“Post-Exchange Option Value” has the meaning ascribed thereto in Subsection 3.1(g)(i); 

“Pre-Exchange Option Value” has the meaning ascribed thereto in Subsection 3.1(g)(i); 

“PTC” means Parametric Technology Corporation, a corporation existing under the laws of the Commonwealth of
Massachusetts; 
 “PTC Shares” means the shares of common stock, par value US$0.01 per share, of PTC;

 “PTC VWAP” means the volume weighted average of the daily volume weighted average trading prices of the PTC
Shares on NASDAQ for the 10 trading days ending on the trading day prior to the date of the Arrangement Agreement; 

  
 A-3

 “Replacement Option” has the meaning ascribed thereto in Subsection 3.1(g);

 “Tax Act” means the Income Tax Act (Canada) and the regulations made thereunder, as now in effect and
as they may be promulgated or amended from time to time. 
 “Unvested MKS Option” means each MKS Option which,
pursuant to its terms and the terms of the MKS Stock Option Plan pursuant to which such MKS Option was granted, has not vested at the date of this Agreement and will not vest prior to the Effective Time; 

“Vested MKS Option” means each MKS Option which, pursuant to its terms and the terms of the MKS Stock Option Plan
pursuant to which such MKS Option was granted, has vested at the date of this Agreement or will vest before the Effective Time. 
 In addition,
words and phrases used herein and defined in the OBCA and not otherwise defined herein or in the Arrangement Agreement shall have the same meaning herein as in the OBCA unless the context otherwise requires. 

 

	1.2	Interpretation Not Affected by Headings 

The division of this Plan of Arrangement into articles, sections, paragraphs and subparagraphs and the insertion of headings herein are for convenience of
reference only and shall not affect the construction or interpretation of this Plan of Arrangement. The terms “this Plan of Arrangement”, “hereof”, “herein”, “hereto”, “hereunder” and similar
expressions refer to this Plan of Arrangement and not to any particular article, section or other portion hereof and include any instrument supplementary or ancillary hereto. 

 

	1.3	Number, Gender and Persons 

 In this Plan
of Arrangement, unless the context otherwise requires, words importing the singular shall include the plural and vice versa, words importing the use of either gender shall include both genders and neuter and the word person and words importing
persons shall include a natural person, firm, trust, partnership, association, corporation, joint venture or government (including any governmental agency, political subdivision or instrumentality thereof) and any other entity or group of persons of
any kind or nature whatsoever. 
  

	1.4	Date for any Action 

 If the date on which
any action is required to be taken hereunder is not a business day, such action shall be required to be taken on the next succeeding day which is a business day. 
  

	1.5	Statutory References 

 Any reference in
this Plan of Arrangement to a statute includes all regulations made thereunder, all amendments to such statute or regulation in force from time to time and any statute or regulation that supplements or supersedes such statute or regulation.

  

	1.6	Currency 

 Unless otherwise stated, all
references herein to amounts of money are expressed in lawful currency of Canada. 

  
 A-4

	1.7	Time 

 Time shall be of the essence in
every matter or action contemplated hereunder. All times expressed herein are local time in Toronto, Ontario unless otherwise stipulated herein. 
 ARTICLE 2 
 ARRANGEMENT AGREEMENT 

 

	2.1	Arrangement Agreement 

 This Plan of
Arrangement is made pursuant to, and is subject to the provisions of, the Arrangement Agreement, except in respect of the sequence of the steps comprising the Arrangement, which shall occur in the order set forth herein. 

 

	2.2	Binding Effect 

 At the Effective Time,
this Plan of Arrangement shall be binding on: 
  

	 	(a)	MKS; 

  

	 	(b)	PTC; 

  

	 	(c)	Acquireco; 

  

	 	(d)	all registered and beneficial holders of MKS Common Shares, including Dissenting Shareholders; 

 

	 	(e)	all holders of MKS Options and MKS RSUs; 

  

	 	(f)	the registrar and transfer agent in respect of the MKS Common Shares; 

  

	 	(g)	the Depositary; and 

  

	 	(h)	the trustee of the trust under the MKS RSU Plan (and any agent thereof). 

 ARTICLE 3 
 ARRANGEMENT 

 

	3.1	Arrangement 

 At the Effective Time,
except as otherwise noted herein, the following shall occur and shall be deemed to occur sequentially, in the following order, without any further act or formality required on the part of any person, in each case effective as at five minute
intervals starting at the Effective Time: 
  

	 	(a)	the MKS Shareholder Rights Plan shall be terminated and shall be of no further force or effect; 

 

	 	(b)	 each Vested MKS Option that is outstanding and has not been duly exercised prior to the Effective Time, without any further action on behalf of any
holder of such Vested MKS Option and without any payment except as provided in this 

  
 A-5

	 	 
Plan of Arrangement, and subject to (for greater certainty) applicable withholdings in accordance with Section 5.3, shall be transferred by the holder thereof to MKS in consideration for a
cash payment by MKS equal to the product obtained by multiplying the amount by which the Consideration per MKS Common Share exceeds (i) the exercise price of such Vested MKS Option, for a Vested MKS Option denominated in Canadian dollars and
(ii) the exercise price of such Vested MKS Option multiplied by the Currency Exchange Rate for a Vested MKS Option denominated in U.S. dollars, by, in each case, the number of MKS Common Shares underlying each such Vested MKS Option. Each
Vested MKS Option issued and outstanding immediately prior to the Effective Time shall thereafter be immediately cancelled and the holder thereof shall thereafter have only the right to receive the consideration to which such holder is entitled
pursuant to this Subsection 3.1(b); 

  

	 	(c)	notwithstanding any contingent vesting provisions to which a MKS RSU might otherwise have been subject, and without any further action on behalf of any holder of such
MKS RSU and without any payment except as provided in this Plan of Arrangement, each outstanding, unvested MKS RSU shall accelerate in accordance with the terms of the MKS RSU Plan and MKS shall, subject to (for greater certainty) applicable
withholdings in accordance with Section 5.3, cause the trustee of the trust under the MKS RSU Plan to deliver to each holder of such an outstanding MKS RSU one MKS Common Share from the trust under the MKS RSU Plan. Each MKS RSU issued and
outstanding immediately prior to the Effective Time shall thereafter be immediately cancelled and all MKS RSU agreements related thereto shall be immediately terminated and the holder thereof shall thereafter have only the right to receive the
consideration to which such holder is entitled pursuant to this Subsection 3.1(c) (and as a holder of MKS Common Shares pursuant to Subsection 3.1(d)). The MKS RSU Plan shall be terminated and none of MKS, PTC, Acquireco or any of their affiliates
shall have any liabilities or obligations with respect to such plan except pursuant to this Subsection 3.1(c); 

  

	 	(d)	each MKS Common Share (including MKS Common Shares transferred to former holders of MKS RSUs pursuant to in Subsection 3.1(c) but other than any MKS Common Shares in
respect of which the MKS Common Shareholder has validly exercised his, her or its Dissent Right) shall be deemed to be transferred to Acquireco (free and clear of any Liens) in exchange for the Consideration, subject to Article 4 hereof;

  

	 	(e)	each MKS Common Share in respect of which the MKS Common Shareholder has validly exercised his, her or its Dissent Right shall be directly transferred and assigned by
such Dissenting Shareholder to Acquireco (free and clear of any Liens) in accordance with Article 4 hereof; 

  

	 	(f)	with respect to each MKS Common Share transferred and assigned in accordance with Subsection 3.1(d) or Subsection 3.1(e) hereto: 

 

	 	(i)	 the registered holder thereof shall cease to be the registered holder of such MKS Common Share and the name of such registered holder shall be

  
 A-6

	 	 
removed from the register of MKS Common Shareholders as of the Effective Time; 

  

	 	(ii)	the registered holder thereof shall be deemed to have executed and delivered all consents, releases, assignments and waivers, statutory or otherwise, required to
transfer and assign such MKS Common Share in accordance with Subsection 3.1(d) or Subsection 3.1(e) hereto, as applicable; and 

  

	 	(iii)	Acquireco will be the holder of all of the outstanding MKS Common Shares and the register of MKS Common Shareholders shall be revised accordingly;

  

	 	(g)	each Unvested MKS Option that is outstanding prior to the Effective Time, without any further action on behalf of any holder of such Unvested MKS Option, shall be
exchanged for an option (a “Replacement Option”) to purchase from PTC the number of PTC Shares (rounded down to the nearest whole number of such shares) equal to the product obtained by multiplying (i) the Exchange Ratio by
(ii) the number of MKS Shares subject to such Unvested MKS Option immediately prior to the Effective Time, and each holder of such exchanged Unvested MKS Option shall immediately become a holder of the number of Replacement Options to which
such holder is entitled as a result of the exchange, and each such exchanged Unvested MKS Option shall be immediately cancelled. For each Unvested MKS Option, such Replacement Option shall provide for an exercise price per PTC Share (rounded up to
the nearest whole cent) in United States dollars equal to (A) in respect of an Unvested MKS Option denominated in Canadian dollars: (i) the quotient obtained by dividing (x) the exercise price per MKS Common Share of such Unvested MKS
Option immediately prior to the Effective Time by (y) the Exchange Ratio, divided by (ii) the Currency Exchange Rate; and (B) in respect of an Unvested MKS Option denominated in U.S. dollars: the quotient obtained by dividing
(x) the exercise price per MKS Common Share of such Unvested MKS Option immediately prior to the Effective Time by (y) the Exchange Ratio. 

 Except as otherwise set out in this Subsection 3.1(g), each Replacement Option shall be governed by the terms and conditions of the MKS Stock Option Plan and any stock option agreement pursuant to which
such MKS Option was granted (including, but not limited to, the term to expiry, conditions to and manner of exercising and vesting schedule), with any adjustments deemed to be made thereto as are necessary to ensure consistency with the provisions
of this Subsection 3.1(g). 
 Notwithstanding the above provisions of this Subsection 3.1(g), 

 

	 	(i)	 with respect to any Unvested MKS Option, if the directors of PTC determine in good faith that the excess of the aggregate fair market value of the PTC
Shares subject to the Replacement Option immediately after the issuance of the Replacement Option over the aggregate option exercise price for such PTC Shares pursuant to the Replacement Option (such

  
 A-7

	 	 
excess, referred to as the “Post-Exchange Option Value”) would otherwise exceed the excess of the aggregate fair market value of the MKS Shares subject to such MKS Option
immediately before the issuance of the Replacement Option over the aggregate option exercise price for such MKS Shares pursuant to such MKS Option (such excess, referred to as the “Pre-Exchange Option Value”), the previous
provisions in this Subsection 3.1(g) shall be modified, but only to the extent necessary and in a manner that does not otherwise adversely affect the holder of the Replacement Option, so that the Post-Exchange Option Value does not exceed the
Pre-Exchange Option Value and provided that the Post-Exchange Option Value will not be less than the Pre-Exchange Option Value; and 

  

	 	(ii)	with respect only to an Unvested MKS Option that is held by a resident of the United States, the exercise price and the number of PTC Shares subject to a Replacement
Option shall be determined in a manner consistent with the requirements of Section 409A of the IRC; provided, further, that in the case of any such Unvested MKS Option which was an incentive stock option (as defined in Section 422 of the
IRC) immediately prior to the Effective Time, the exercise price, the number of PTC Shares and the terms and conditions of the Replacement Option shall be determined in a manner consistent with the requirements of Section 424(a) of the IRC.

 ARTICLE 4 
 DISSENT RIGHTS 
  

	4.1	Rights of Dissent 

  

	 	(a)	Pursuant to the Interim Order, registered holders of MKS Common Shares may exercise rights of dissent (“Dissent Rights”) under Section 185 of the
OBCA, as modified by this Article 4, the Interim Order and the Final Order, with respect to MKS Common Shares in connection with the Arrangement, provided that, notwithstanding Section 185(6) of the OBCA, the written notice setting forth the
objection of such registered MKS Common Shareholder to the Arrangement contemplated by Section 185(6) of the OBCA and exercise of Dissent Rights must be received by MKS not later than 5:00 p.m. (Toronto time) on the business day that is two
(2) business days before the MKS Meeting or any date to which the MKS Meeting may be postponed or adjourned and provided further that holders who exercise such Dissent Rights and who: 

 

	 	(i)	are ultimately entitled to be paid fair value for their MKS Common Shares, which fair value, notwithstanding anything to the contrary contained in the OBCA, shall be
determined as of the close of business on the day before the Effective Date, shall be deemed to have transferred their MKS Common Shares to Acquireco (free and clear of any Liens) and Acquireco shall thereupon pay the amount therefor determined to
be the fair value of such MKS Common Shares; and 

  
 A-8

	 	(ii)	are ultimately not entitled, for any reason, to be paid fair value for their MKS Common Shares shall be deemed to have participated in the Arrangement, as of the
Effective Time, on the same basis as a holder of MKS Common Shares that did not exercise Dissent Rights and shall be entitled to receive only the consideration contemplated in Subsection 3.1(d) hereof that such holder would have received pursuant to
the Arrangement if such holder had not exercised Dissent Rights; 

  

	 	(b)	In no circumstances shall MKS, PTC or any other Person be required to recognize a Person exercising Dissent Rights unless such Person is a registered holder of those
MKS Common Shares in respect of which such rights are sought to be exercised; and 

  

	 	(c)	For greater certainty, in no case shall MKS, PTC or any other Person be required to recognize Dissenting Shareholders as holders of MKS Common Shares after the
Effective Time, and the names of such Dissenting Shareholders shall be deleted from the register of MKS Common Shareholders as of the Effective Time. In addition to any other restrictions under Section 185 of the OBCA and, for greater
certainty, none of the following shall be entitled to exercise Dissent Rights: (i) holders of MKS Options; (ii) holders of MKS RSUs; and (iii) MKS Common Shareholders who vote, or who have instructed a proxyholder to vote, in favour
of the Arrangement Resolution. 

 ARTICLE 5 

DELIVERY OF CONSIDERATION 
  

	5.1	Delivery of Consideration 

  

	 	(a)	Prior the Effective Time, (i) Acquireco shall deposit or cause to be deposited with the Depositary, for the benefit of and in trust for holders of MKS Common
Shares, the aggregate amount of cash payable under Subsections 3.1(d) and (e) (with the amount per MKS Common Share in respect of which Dissent Rights have been exercised being deemed to be equal to the Consideration for this purpose only); and
(ii) MKS shall deposit or cause to be deposited with the Depositary, for the benefit of and in trust for holders of Vested MKS Options, the aggregate amount of cash required for payments in respect of the Vested MKS Options pursuant to
Subsection 3.1(b). All such money shall be cash, denominated in Canadian dollars in same day funds payable at Toronto, Ontario. Such money shall not be used for any purpose except as provided in this Plan of Arrangement. 

 

	 	(b)	 Upon surrender to the Depositary for cancellation of a certificate that immediately before the Effective Time represented one or more outstanding MKS
Common Shares that were exchanged for cash in accordance with Subsection 3.1(d) hereof, together with a duly completed and executed Letter of Transmittal and such additional documents and instruments as the Depositary may reasonably require, the
holder of such surrendered certificate shall be entitled to receive in exchange therefor, and the Depositary shall deliver to such holder following the Effective Time, the cash that such holder is entitled to receive in accordance with

  
 A-9

	 	 
Subsection 3.1(d) hereof, less any amounts withheld pursuant to Section 5.3 and any certificate so surrendered shall be cancelled. The cash deposited with the Depositary shall be held in an
interest-bearing account and any interest earned on such funds shall be for the account of Acquireco. 

  

	 	(c)	After the Effective Time and until surrendered for cancellation as contemplated by Subsection 5.1(a) hereof, each certificate that immediately prior to the Effective
Time represented one or more MKS Common Shares shall be deemed at all times to represent only the right to receive in exchange therefor the Consideration that the holder of such certificate is entitled to receive in accordance with Subsection 3.1(d)
hereof, less any amounts withheld pursuant to Section 5.3. 

  

	 	(d)	No holder of MKS Common Shares, MKS Options or MKS RSUs shall be entitled to receive any consideration with respect to such securities other than the consideration to
which such holder is entitled to receive in accordance with Article 3 and this Section 5.1 and, for greater certainty, no such holder will be entitled to receive any interest, dividends, premium or other payment in connection therewith, other
than any declared but unpaid dividends with a record date prior to the Effective Date. No dividend or other distribution declared or made after the Effective Time with respect to the MKS Common Shares with a record date on or after the Effective
Date shall be delivered to the holder of any unsurrendered certificate which, immediately prior to the Effective Date, represented outstanding MKS Common Shares. 

 

	5.2	Lost Certificates 

 If any certificate,
that immediately prior to the Effective Time represented one or more outstanding MKS Common Shares that were exchanged for the Consideration in accordance with Section 3.1 hereof, shall have been lost, stolen or destroyed, upon the making of an
affidavit of that fact by the holder claiming such certificate to be lost, stolen or destroyed, the Depositary shall deliver in exchange for such lost, stolen or destroyed certificate, the Consideration that such holder is entitled to receive in
accordance with Section 3.1 hereof. When authorizing such delivery of Consideration that such holder is entitled to receive in exchange for such lost, stolen or destroyed certificate, the holder to whom such Consideration is to be delivered
shall, as a condition precedent to the delivery of such Consideration, give a bond satisfactory to PTC and the Depositary in such amount as PTC and the Depositary may direct, or otherwise indemnify PTC and the Depositary in a manner satisfactory to
PTC and the Depositary, against any claim that may be made against PTC or the Depositary with respect to the certificate alleged to have been lost, stolen or destroyed and shall otherwise take such actions as may be required by the articles and
by-laws of Acquireco. 
  

	5.3	Withholding Rights 

 PTC, Acquireco and
the Depositary shall be entitled to deduct and withhold from any amount payable to any Person under the Plan of Arrangement (including any amounts payable pursuant to Section 3.1) such amounts as PTC or the Depositary is required or permitted
to deduct and withhold with respect to such payment under the Tax Act, the IRC or any provision of any applicable federal, provincial, state, local or foreign tax Law or treaty, in each case, as amended.

  
 A-10

 
To the extent that amounts are so withheld, such withheld amounts shall be treated for all purposes hereof as having been paid to the Former MKS Common Shareholder, or holder of Vested MKS
Options as the case may be, in respect of which such deduction and withholding was made, provided that such withheld amounts are actually remitted to the appropriate taxing authority. 

 

	5.4	Limitation and Proscription 

 Subject to
applicable laws, to the extent that a Former MKS Common Shareholder shall not have complied with the provisions of Section 5.1 or Section 5.2 hereof on or before the date that is six (6) years after the Effective Date (the
“final proscription date”), then the Consideration that such Former MKS Common Shareholder was entitled to receive shall be automatically cancelled without any repayment of capital in respect thereof and the Consideration to which
such Former MKS Common Shareholder was entitled, shall be delivered to Acquireco by the Depositary and the Former MKS Common Shareholder shall cease to have any claim or interest of any kind or nature against or in MKS, Acquireco or PTC as of such
final proscription date. 
  

	5.5	No Liens 

 Any exchange or transfer of
securities pursuant to this Plan of Arrangement shall be free and clear of any Liens, charges, security interests, encumbrances, mortgages, hypothecs, restrictions, adverse claims or other claims of third parties of any kind. 

 

	5.6	Paramountcy 

 From and after the Effective
Time: (i) this Plan of Arrangement shall take precedence and priority over any and all MKS Common Shares issued prior to the Effective Time, (ii) the rights and obligations of the registered holders of MKS Common Shares, and MKS, PTC,
Acquireco, the Depositary and any transfer agent or other depositary therefor in relation thereto, shall be solely as provided for in this Plan of Arrangement, and (iii) all actions, causes of action, claims or proceedings (actual or contingent
and whether or not previously asserted) based on or in any way relating to any MKS Common Shares shall be deemed to have been settled, compromised, released and determined without liability except as set forth herein. 

ARTICLE 6 

AMENDMENTS 
  

	6.1	Amendments to Plan of Arrangement 

  

	 	(a)	PTC and MKS reserve the right to amend, modify or supplement this Plan of Arrangement at any time and from time to time, provided that each such amendment, modification
or supplement must be: (i) set out in writing; (ii) agreed to in writing by PTC and MKS; (iii) filed with the Court and, if made following the MKS Meeting, approved by the Court; and (iv) communicated to holders or former holders
of MKS Common Shares if and as required by the Court. 

  

	 	(b)	 Any amendment, modification or supplement to this Plan of Arrangement may be proposed by MKS at any time prior to the MKS Meeting provided that PTC
shall have consented thereto in writing, with or without any other prior notice or 

  
 A-11

	 	 
communication (other than as may be required under the Interim Order), and, if so proposed and accepted by the persons voting at the MKS Meeting, shall become part of this Plan of Arrangement for
all purposes. 

  

	 	(c)	Any amendment, modification or supplement to this Plan of Arrangement that is approved by the Court following the MKS Meeting shall be effective only if: (i) it is
consented to in writing by each of PTC and MKS; (ii) it is filed with the Court and (iii) if required by the Court, it is consented to by holders of the MKS Shares voting in the manner directed by the Court. 

 

	 	(d)	This Plan of Arrangement may be withdrawn prior to the Effective Time in accordance with the terms of the Arrangement Agreement. 

ARTICLE 7 

FURTHER ASSURANCES 
  

	7.1	Further Assurances 

 Notwithstanding that
the transactions and events set out herein shall occur and be deemed to occur in the order set out in this Plan of Arrangement without any further act or formality, each of the parties to the Arrangement Agreement shall make, do and execute, or
cause to be made, done and executed, all such further acts, deeds, agreements, transfers, assurances, instruments or documents as may reasonably be required by any of them in order further to document or evidence any of the transactions or events
set out therein. 

  
 A-12

 SCHEDULE B 
 ARRANGEMENT RESOLUTION 
 BE IT RESOLVED THAT: 

 

	1.	The arrangement (the “Arrangement”) under Section 182 of the Business Corporations Act (Ontario) (the “OBCA”) involving
MKS Inc., a corporation existing under the laws of Ontario (“MKS”), all as more particularly described and set forth in the Management Proxy Circular (the “Circular”) of MKS dated
—, 2011, accompanying the notice of this meeting (as the Arrangement may be, or may have been, modified or amended in accordance with its terms), is hereby authorized, approved and adopted.

  

	2.	The plan of arrangement (the “Plan of Arrangement”), involving MKS and implementing the Arrangement, the full text of which is set out in Schedule A to
the Arrangement Agreement (as the Plan of Arrangement may be, or may have been, modified or amended in accordance with its terms), is hereby authorized, approved and adopted. 

 

	3.	The arrangement agreement (the “Arrangement Agreement”) among MKS, Parametric Technology Corporation and PTC NS ULC, dated April 6, 2011, and all
the transactions contemplated therein, the actions of the directors of MKS in approving the Arrangement and the actions of the directors and officers of MKS in executing and delivering the Arrangement Agreement and any amendments thereto are hereby
ratified and approved. 

  

	4.	Notwithstanding that these resolutions have been passed (and the Arrangement approved) by the shareholders of MKS or that the Arrangement has been approved by the
Ontario Superior Court of Justice (Commercial List), the directors of MKS are hereby authorized and empowered, without further notice to, or approval of, the securityholders of MKS: 

 

	 	(a)	to amend the Arrangement Agreement or the Plan of Arrangement to the extent permitted by the Arrangement Agreement or the Plan of Arrangement; or

  

	 	(b)	subject to the terms of the Arrangement Agreement, not to proceed with the Arrangement. 

 

	5.	Any director or officer of MKS is hereby authorized and directed for and on behalf of MKS to execute, whether under corporate seal of MKS or otherwise, and to deliver
articles of arrangement and such other documents as are necessary or desirable to the Director under the OBCA in accordance with the Arrangement Agreement for filing. 

 

	6.	Any one or more directors or officers of MKS is hereby authorized, for and on behalf and in the name of MKS, to execute and deliver, whether under corporate seal of MKS
or otherwise, all such agreements, forms, waivers, notices, certificate, confirmations and other documents and instruments and to do or cause to be done all such other acts and things as such director or officer may determine to be necessary,
desirable or useful for the purpose of giving effect to these resolutions, the Arrangement Agreement and the completion of the Plan of Arrangement in accordance with the terms of the Arrangement Agreement, including: 

	 	(a)	all actions required to be taken by or on behalf of MKS, and all necessary filings and obtaining the necessary approvals, consents and acceptances of appropriate
regulatory authorities; and 

  

	 	(b)	the signing of the certificates, consents and other documents or declarations required under the Arrangement Agreement or otherwise to be entered into by MKS;

 such determination to be conclusively evidenced by the execution and delivery of such document, agreement or
instrument or the doing of any such act or thing. 

  
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