Document:

EX-10.5

 Exhibit 10.5 

Execution Version 

CANADIAN GUARANTEE 

CANADIAN GUARANTEE (as amended, modified, restated and/or supplemented from time to time, this “Guarantee”), dated as of
October 28, 2019, made by and among each of the undersigned guarantors (each, a “Guarantor” and, together with any other entity that becomes a guarantor hereunder pursuant to Section 23 hereof, collectively, the
“Guarantors”) in favour of Bank of America, N.A., as administrative agent (together with any successor administrative agent, the “Administrative Agent”), for the benefit of the Secured Parties (as defined below).
Certain capitalized terms as used herein are defined in Section 1 hereof. Except as otherwise defined herein, all capitalized terms used herein and defined in the Credit Agreement (as defined below) shall be used herein as therein defined. 

W I T N E S S E T H: 

WHEREAS, Ciena Corporation, a Delaware corporation (the “Company”, together with the Domestic Subsidiaries of the Company
that are or become a U.S. Borrower pursuant to the terms of the Credit Agreement, the “U.S. Borrowers”), Ciena Canada, Inc., a corporation incorporated under the laws of Canada (together with the other Canadian Subsidiaries of the
Company that are or become a Canadian Borrower pursuant to the terms of the Credit Agreement, the “Borrowers” and each a “Borrower”), the lenders from time to time party thereto (the “Lenders”) and
Bank of America, N.A., as administrative agent and collateral agent have entered into that certain ABL Credit Agreement, dated as of October 28, 2019 (as amended, modified, restated and/or supplemented from time to time, the “Credit
Agreement”), providing for the making of Loans to the Borrowers and the U.S. Borrowers as contemplated therein (the Lenders, the Administrative Agent and the other “Secured Parties” (as defined in the Credit Agreement) are herein
called the “Secured Parties”); 
 WHEREAS, it is a condition precedent to the making of Loans to the Borrowers and the U.S.
Borrowers under the Credit Agreement that each Guarantor shall have executed and delivered to the Administrative Agent this Guarantee; and 

WHEREAS, each Guarantor will benefit from the incurrence of Loans by the Borrowers and the U.S. Borrowers and, accordingly, desires to execute
this Guarantee in order to (i) satisfy the condition described in the preceding paragraph and (ii) induce the Lenders to make Loans to the Borrowers and the U.S. Borrowers; 

 NOW, THEREFORE, in consideration of the foregoing and other benefits accruing to each
Guarantor, the receipt and sufficiency of which are hereby acknowledged, each Guarantor hereby makes the following representations and warranties to the Administrative Agent for the benefit of the Secured Parties and hereby covenants and agrees with
each other Guarantor and the Administrative Agent for the benefit of the Secured Parties as follows: 
 1. GUARANTEE. (a) Each
Guarantor, jointly and severally, irrevocably, absolutely and unconditionally guarantees as a primary obligor and not merely as surety: to the Secured Parties the full and prompt payment when due (whether at the stated maturity, by required
prepayment, declaration, acceleration, demand or otherwise) of (x) all Canadian Obligations and (y) all other obligations (including, without limitation, obligations which, but for the automatic or any other stay under applicable Debtor
Relief Laws, would become due), liabilities and indebtedness owing by the Borrowers to the Secured Parties under the Credit Agreement and each other Loan Document to which any Borrower is a party (including, without limitation, indemnities, fees and
interest thereon (including, without limitation, in each case any interest, fees or expenses accruing after the commencement of any bankruptcy, insolvency, receivership, arrangement, reorganization or similar proceeding at the rate provided for in
the Credit Agreement, whether or not such interest, fees or expenses are an allowed claim in any such proceeding)), whether now existing or hereafter incurred under, arising out of or in connection with each such Loan Document (all such principal,
premium, interest, liabilities, indebtedness and obligations under this clause (a), being herein collectively called the “Guaranteed Obligations”). 

Each Guarantor understands, agrees and confirms that the Secured Parties may enforce this Guarantee up to the full amount of the Guaranteed
Obligations against such Guarantor without proceeding against any other Guarantor or any Borrower, or against any security for the Guaranteed Obligations, or under any other guarantee covering all or a portion of the Guaranteed Obligations. This
Guarantee is a guarantee of prompt payment and performance and not of collection. For purposes of this Guarantee, the term “Guarantor” as applied to any Borrower or any other Guarantor shall refer to such Borrower or such other Guarantor
as a guarantor of indebtedness incurred by another Borrower, and not indebtedness directly incurred by such Guarantor, in its capacity as Borrower or otherwise. 

The following capitalized terms used herein shall have the definitions specified below: 

“Guarantee Supplement” shall mean a guarantee supplement, in a form reasonably satisfactory to the Administrative Agent and
attached hereto as Exhibit A, signed and delivered to the Administrative Agent for the purpose of adding a Subsidiary as a party hereto pursuant to Section 23. 

“Termination Date” shall mean the date upon which Payment in Full occurs. 

(b) Additionally, each Guarantor, jointly and severally, unconditionally, absolutely and irrevocably, guarantees the payment of any and all
Guaranteed Obligations whether or not due and payable by any Borrower upon the occurrence, in respect of any Borrower, of any of the events specified in Section 8.01(f) of the Credit Agreement, and unconditionally, absolutely and irrevocably,
jointly and severally, promises to pay such Guaranteed Obligations to the Secured Parties, or order, on demand. 
 2. LIABILITY OF
GUARANTORS ABSOLUTE. The liability of each Guarantor hereunder is primary, absolute, joint and several, and unconditional and is exclusive and independent of any security for or other guarantee of the indebtedness of any Borrower whether
executed by such Guarantor, any other Guarantor, any other guarantor or by any other party, and the liability of each Guarantor hereunder shall not be affected or impaired by any circumstance or occurrence whatsoever, including, without limitation:
(a) any direction as to application of 

  
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payment by any Borrower or any other party, (b) any other continuing or other guarantee, undertaking or maximum liability of a Guarantor or of any other party as to the Guaranteed
Obligations, (c) any payment on or in reduction of any such other guarantee or undertaking, (d) any dissolution, termination or increase, decrease or change in personnel by any Borrower, (e) the failure of a Guarantor to receive any
benefit from or as a result of its execution, delivery and performance of this Guarantee, (f) any payment made to any Secured Party on the indebtedness which any Secured Party repays any Borrower pursuant to court order in any bankruptcy,
reorganization, arrangement, moratorium or other debtor relief proceeding, and each Guarantor waives any right to the deferral or modification of its obligations hereunder by reason of any such proceeding, (g) any action or inaction by the
Secured Parties as contemplated in Section 5 hereof or (h) any invalidity, rescission, irregularity or unenforceability of all or any part of the Guaranteed Obligations or of any security therefor. 

3. OBLIGATIONS OF GUARANTORS INDEPENDENT. The obligations of each Guarantor hereunder are independent of the obligations of any other
Guarantor, any other guarantor or any Borrower, and a separate action or actions may be brought and prosecuted against each Guarantor whether or not action is brought against any other Guarantor, any other guarantor or any Borrower and whether or
not any other Guarantor, any other guarantor or any Borrower is joined in any such action or actions. Each Guarantor waives (to the fullest extent permitted by applicable law) the benefits of any statute of limitations affecting its liability
hereunder or the enforcement thereof. Any payment by any Borrower or other circumstance which operates to toll any statute of limitations as to any Borrower shall operate to toll the statute of limitations as to each Guarantor. 

4. WAIVERS BY GUARANTORS. (a) Each Guarantor hereby waives (to the fullest extent permitted by applicable law) notice of acceptance of
this Guarantee and notice of the existence, creation or incurrence of any new or additional liability to which it may apply, and waives promptness, diligence, presentment, demand of payment, demand for performance, protest, notice of dishonor or
nonpayment of any such liabilities, suit or taking of other action by the Administrative Agent or any other Secured Party against, and any other notice to, any party liable thereon (including such Guarantor, any other Guarantor, any other guarantor
or any Borrower) and each Guarantor further hereby waives any and all notice of the creation, renewal, extension or accrual of any of the Guaranteed Obligations and notice or proof of reliance by any Secured Party upon this Guarantee, and the
Guaranteed Obligations shall conclusively be deemed to have been created, contracted or incurred, or renewed, extended, amended, modified, supplemented or waived, in reliance upon this Guarantee. 

(b) Each Guarantor waives any right (except as shall be required by applicable statute and cannot be waived) to require the Secured Parties to:
(i) proceed against any Borrower, any other Guarantor, any other guarantor of the Guaranteed Obligations or any other party; (ii) proceed against or exhaust any security held from any Borrower, any other Guarantor, any other guarantor of
the Guaranteed Obligations or any other party; or (iii) pursue any other remedy in the Secured Parties’ power whatsoever. Each Guarantor waives any defense based on or arising out of any defense of any Borrower, any other Guarantor, any
other guarantor of the Guaranteed Obligations or any other party other than the occurrence of the Termination Date, including, without limitation, any defense based on or arising out of the disability of any Borrower, any other Guarantor, any other
guarantor of the Guaranteed Obligations or any other 

  
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party, or the unenforceability of the Guaranteed Obligations or any part thereof from any cause, or the cessation from any cause of the liability of any Borrower other than the occurrence of the
Termination Date. The Secured Parties may, at their election, upon the occurrence and during the continuance of an Event of Default, foreclose on any collateral serving as security held by the Administrative Agent or the other Secured Parties by one
or more judicial or nonjudicial sales, whether or not every aspect of any such sale is commercially reasonable (to the extent such sale is permitted by applicable law), or exercise any other right or remedy the Secured Parties may have against any
Borrower, or any other party, or any security, without affecting or impairing in any way the liability of any Guarantor hereunder except to the extent the Termination Date has occurred. Each Guarantor waives any defense arising out of any such
election by the Secured Parties, even though such election may operate to impair or extinguish any right of reimbursement, contribution, indemnification or subrogation or other right or remedy of such Guarantor against any Borrower, any other
guarantor of the Guaranteed Obligations or any other party or any security. 
 (c) Each Guarantor has knowledge and assumes all
responsibility for being and keeping itself informed of each Borrower’s and each other Guarantor’s financial condition, affairs and assets, and of all other circumstances bearing upon the risk of nonpayment of the Guaranteed Obligations
and the nature, scope and extent of the risks which such Guarantor assumes and incurs hereunder, and has adequate means to obtain from each Borrower and each other Guarantor on an ongoing basis information relating thereto and each Borrower’s
and each other Guarantor’s ability to pay and perform its respective Guaranteed Obligations, and agrees to assume the responsibility to keep so informed for so long as such Guarantor is a party to this Guarantee. Each Guarantor acknowledges and
agrees that (x) the Secured Parties shall have no obligation to investigate the financial condition or affairs of any Borrower or any other Guarantor for the benefit of such Guarantor nor to advise such Guarantor of any fact respecting, or any
change in, the financial condition, assets or affairs of any Borrower or any other Guarantor that might become known to any Secured Party at any time, whether or not such Secured Party knows or believes or has reason to know or believe that any such
fact or change is unknown to such Guarantor, or might (or does) increase the risk of such Guarantor as guarantor hereunder, or might (or would) affect the willingness of such Guarantor to continue as a Guarantor hereunder and (y) the Secured
Parties shall have no duty to advise any Guarantor of information known to them regarding any of the aforementioned circumstances or risks. 

(d) Each Guarantor hereby acknowledges and agrees that no Secured Party nor any other Person shall be under any obligation (a) to marshal
any assets in favour of such Guarantor or in payment of any or all of the liabilities of any Borrower under the Loan Documents or the obligation of such Guarantor hereunder or (b) to pursue any other remedy that such Guarantor may or may not be
able to pursue itself any right to which such Guarantor hereby waives. 
 (e) Each Guarantor warrants and agrees that each of the waivers set
forth in Section 3 hereof and in this Section 4 is made with full knowledge of its significance and consequences and that if any of such waivers are determined to be contrary to any applicable law or public policy, such waivers shall be
effective only to the maximum extent permitted by applicable law. 

  
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 5. RIGHTS OF SECURED PARTIES. Any Secured Party may (except as shall be required by
applicable statute and cannot be waived) at any time and from time to time without the consent of, or notice to, any Guarantor, without incurring responsibility to such Guarantor, without impairing or releasing the obligations or liabilities of such
Guarantor hereunder, upon or without any terms or conditions and in whole or in part: 
 (a) change the manner, place or
terms of payment of, and/or change, increase or extend the time of payment of, renew, increase, accelerate or alter, any of the Guaranteed Obligations (including, without limitation, any increase or decrease in the rate of interest thereon or the
principal amount thereof), any security therefor, or any liability incurred directly or indirectly in respect thereof, and the guarantee herein made shall apply to the Guaranteed Obligations as so changed, extended, increased, accelerated, renewed
or altered; 
 (b) take and hold security for the payment of the Guaranteed Obligations and sell, exchange, release,
surrender, impair, realize upon or otherwise deal with in any manner and in any order any property or other collateral by whomsoever at any time pledged or mortgaged to secure, or howsoever securing, the Guaranteed Obligations or any liabilities
(including any of those hereunder) incurred directly or indirectly in respect thereof or hereof, and/or any offset thereagainst; 

(c) exercise or refrain from exercising any rights against any Borrower, any other Loan Party, any Subsidiary thereof, any
other guarantor of any Borrower or others or otherwise act or refrain from acting; 
 (d) release or substitute any one or
more endorsers, Guarantors, other guarantors, any Borrower or other obligors; 
 (e) settle or compromise any of the
Guaranteed Obligations, any security therefor or any liability (including any of those hereunder) incurred directly or indirectly in respect thereof or hereof, and may subordinate the payment of all or any part thereof to the payment of any
liability (whether due or not) of any Borrower to creditors of any Borrower other than the Secured Parties; 
 (f) apply any
sums by whomsoever paid or howsoever realized to any liability or liabilities of any Borrower to the Secured Parties regardless of what liabilities of such Borrower remain unpaid; 

(g) consent to or waive any breach of, or any act, omission or default under, any of the Loan Documents or any of the
instruments or agreements referred to therein, or otherwise amend, modify or supplement any of the Loan Documents or any of such other instruments or agreements; 

(h) act or fail to act in any manner which may deprive such Guarantor of its right to subrogation against any Borrower to
recover full indemnity for any payments made pursuant to this Guarantee; and/or 

  
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 (i) take any other action or omit to take any other action which would,
under otherwise applicable principles of common law, give rise to a legal or equitable discharge of such Guarantor from its liabilities under this Guarantee (including, without limitation, any action or omission whatsoever that might otherwise vary
the risk of such Guarantor or constitute a legal or equitable defense to or discharge of the liabilities of a guarantor or surety or that might otherwise limit recourse against such Guarantor). 

No invalidity, illegality, irregularity or unenforceability of all or any part of the Guaranteed Obligations, the Loan Documents or any other agreement or
instrument relating to the Guaranteed Obligations or of any security or guarantee therefor shall affect, impair or be a defense to this Guarantee, and this Guarantee shall be primary, absolute and unconditional notwithstanding the occurrence of any
event or the existence of any other circumstances which might constitute a legal or equitable discharge of a surety or guarantor except the occurrence of the Termination Date. 

6. CONTINUING GUARANTEE. This Guarantee is a continuing one and all liabilities to which it applies or may apply under the terms hereof
shall be conclusively presumed to have been created in reliance hereon. No failure or delay on the part of any Secured Party in exercising 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 further exercise thereof or the exercise of any other right, power or privilege. The rights and remedies herein expressly specified are cumulative and not exclusive of any
rights or remedies which any Secured Party would otherwise have. No notice to or demand on any Guarantor in any case shall entitle such Guarantor to any other further notice or demand in similar or other circumstances or constitute a waiver of the
rights of any Secured Party to any other or further action in any circumstances without notice or demand. It is not necessary for any Secured Party to inquire into the capacity or powers of any Borrower or the officers, directors, partners or agents
acting or purporting to act on its behalf, and any indebtedness made or created in reliance upon the professed exercise of such powers shall be guaranteed hereunder. 

7. SUBORDINATION OF INDEBTEDNESS HELD BY GUARANTORS. Any indebtedness of any Borrower now or hereafter held by any Guarantor is hereby
subordinated to the Guaranteed Obligations of such Borrower to the Secured Parties; and the indebtedness of such Borrower to any Guarantor, if the Administrative Agent, after an Event of Default has occurred and is continuing, so requests, shall be
collected, enforced and received by such Guarantor as trustee for the Secured Parties and be paid over to the Secured Parties on account of the Guaranteed Obligations of such Borrower to the Secured Parties, but without affecting or impairing in any
manner the liability of such Guarantor under the other provisions of this Guarantee. Without limiting the generality of the foregoing, each Guarantor hereby agrees with the Secured Parties that it will not exercise any right of subrogation which it
may at any time otherwise have as a result of this Guarantee (whether contractual or under any applicable Debtor Relief Law, or otherwise) until the Termination Date; provided, that if any amount shall be paid to such Guarantor on account of
such subrogation rights at any time prior to the Termination Date, such amount shall be held in trust for the benefit of the Secured Parties and shall promptly be paid to the Secured Parties to be credited and applied upon the Guaranteed
Obligations, whether matured or unmatured, in accordance with the terms of the Loan Documents or, if the Loan Documents do not provide for the application of such amount, to be held by the Secured Parties as collateral security for any Guaranteed
Obligations thereafter existing. 

  
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 8. GUARANTEE ENFORCEABLE BY THE ADMINISTRATIVE AGENT. Notwithstanding anything to the
contrary contained elsewhere in this Guarantee, the Secured Parties agree (by their acceptance of the benefits of this Guarantee) that this Guarantee may be enforced only by the action of the Administrative Agent, acting upon the instructions of the
Required Lenders and that no other Secured Party shall have any right individually to seek to enforce or to enforce this Guarantee or to realize upon the security to be granted by the Collateral Documents, it being understood and agreed that such
rights and remedies may be exercised by the Administrative Agent, for the benefit of the Secured Parties upon the terms of this Guarantee and the Collateral Documents. The Secured Parties further agree that this Guarantee may not be enforced against
any director, officer, employee, partner, member or stockholder of any Guarantor (except to the extent such partner, member or stockholder is also a Guarantor hereunder). It is understood and agreed that the agreement in this Section 8 is among
and solely for the benefit of the Secured Parties and that, if the Required Lenders so agree (without requiring the consent of any Guarantor), this Guarantee may be directly enforced by any Secured Party. 

9. REPRESENTATIONS, WARRANTIES AND COVENANTS OF GUARANTORS. In order to induce the Lenders to make Loans to the Borrowers pursuant to
the Credit Agreement each Guarantor represents, warrants and covenants that: 
 (a) such Guarantor (i) is duly organized
or formed, validly existing and, as applicable, in good standing under the Laws of the jurisdiction of its incorporation or organization (to the extent such concept is applicable in the relevant jurisdiction), (ii) has all requisite power and
authority and all requisite governmental licenses, authorizations, consents and approvals to (A) own or lease its assets and carry on its business and (B) execute, deliver and perform its obligations hereunder, and (iii) is duly
qualified and is licensed and, as applicable, in good standing (to the extent such concept is applicable in the relevant jurisdiction) under the Laws of each jurisdiction where its ownership, lease or operation of properties or the conduct of its
business requires such qualification or license; except in each case referred to in clause (ii)(A) or (iii), to the extent that failure to do so could not reasonably be expected to have a Material Adverse Effect; 

(b) the execution, delivery and performance by such Guarantor of each Loan Document to which such Guarantor is a party has been
duly authorized by all necessary corporate or other organizational action, and do not and will not (i) contravene the terms of any of such Guarantor’s Organization Documents; (ii) conflict with or result in any breach or contravention
of, or the creation of any Lien (other than Liens created under the Loan Documents) under, or require any payment to be made under (A) any material Contractual Obligation to which such Guarantor is a party or affecting such Guarantor or the
properties of such Guarantor or any of its Subsidiaries or (B) any order, injunction, writ or decree of any Governmental Authority or any arbitral award to which such Guarantor or its property is subject; or (iii) violate any Law; 

  
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 (c) such Guarantor has duly executed and delivered each of the Loan
Documents that it is party thereto. This Agreement constitutes, and each other Loan Document when so delivered will constitute, a legal, valid and binding obligation of such Guarantor, enforceable against such Guarantor that is party thereto in
accordance with its terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or other laws affecting creditors’ rights generally and subject to general principles of equity, regardless of whether considered in a
proceeding in equity or at law; 
 (d) no approval, consent, exemption, authorization, or other action by, or notice to, or
filing with, any Governmental Authority or any other Person is necessary or required in connection with (i) the execution, delivery or performance by such Guarantor of this Agreement or any other Loan Document, or for the consummation of the
Transaction, (ii) the grant by such Guarantor of the Liens granted by it pursuant to the Collateral Documents, or (iii) the perfection or maintenance of the Liens created under the Collateral Documents (including, subject to the
Intercreditor Agreement, the first priority nature thereof) other than (A) those that have already been obtained and are now in full force and effect, (B) filings to perfect the Liens created by the Collateral Documents, and (C) those
actions as contemplated by Section 2.1 of the Canadian Security Agreement; 
 (e) there are no actions, suits,
proceedings, investigations, claims or disputes pending or, to the knowledge of any Responsible Officer of such Guarantor, threatened or contemplated in writing, at law, in equity, in arbitration or before any Governmental Authority, by or against
such Guarantor or against any of its properties or revenues that (i) purport to affect or pertain to this Agreement, any other Loan Document or the consummation of the Transaction, or (ii) either individually or in the aggregate could
reasonably be expected to have a Material Adverse Effect; and 
 (f) until the Termination Date, such Guarantor will comply,
and will cause each of its Subsidiaries to comply, with all of the applicable provisions, covenants and agreements contained in Articles 6 and 7 of the Credit Agreement which are expressly applicable to such Guarantor and/or such Guarantor’s
Subsidiaries, and will take, or will refrain from taking, as the case may be, all actions that are necessary to be taken or not taken so that no violation of any provision, covenant or agreement contained in Articles 6 and 7 of the Credit Agreement
which are expressly applicable to such Guarantor and/or such Guarantor’s Subsidiaries, and so that no Default or Event of Default, is caused by the actions of such Guarantor or any of its Subsidiaries. 

10. EXPENSES. The Guarantors hereby jointly and severally agree to pay (i) all reasonable and documented out-of-pocket expenses incurred by the Administrative Agent and its Affiliates (including the reasonable fees, charges and disbursements of counsel for the Administrative
Agent), in connection with any amendment, waiver or consent relating hereto and (ii) all reasonable and documented out-of-pocket expenses incurred by the
Administrative Agent or any Secured Party (including the reasonable fees, charges and disbursements of (x) one counsel to the Administrative Agent (plus one local counsel in each applicable jurisdiction and one specialty counsel in each
applicable specialty), (y) one counsel to the Secured Parties (plus one local counsel in each applicable jurisdiction and one specialty counsel in each applicable 

  
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specialty) and (z) in the case of an actual conflict of interest, one additional counsel for each group of similarly situated affected persons, taken as a whole), in connection with the
enforcement or protection of its rights in connection with this Guarantee and the other Loan Documents, including its rights under this Section. 

11. BENEFIT AND BINDING EFFECT. This Guarantee shall be binding upon each Guarantor and its successors and assigns and shall inure to
the benefit of the Secured Parties and their successors and assigns. 
 12. AMENDMENTS; WAIVERS. Neither this Guarantee nor any
provision hereof may be changed, waived, discharged or terminated except with the written consent of each Guarantor directly affected thereby (it being understood that the addition or release of any Guarantor hereunder shall not constitute a change,
waiver, discharge or termination affecting any Guarantor other than the Guarantor so added or released) and with the written consent of the Required Lenders (or, to the extent required by Section 10.01 of the Credit Agreement, with the written
consent of each Lender) at all times prior to the Termination Date. 
 13. SET OFF. In addition to any rights now or hereafter granted
under applicable law (including, without limitation, applicable Debtor Relief Laws) and not by way of limitation of any such rights, upon the occurrence and during the continuance of an Event of Default, each Secured Party and each of their
respective Affiliates is hereby authorized, at any time or from time to time, without notice to any Guarantor or to any other Person, any such notice being expressly waived, to set off and to appropriate and apply any and all deposits (general or
special) and any other indebtedness at any time held or owing by such Secured Party to or for the credit or the account of such Guarantor, against and on account of the obligations and liabilities of such Guarantor to such Secured Party under this
Guarantee, irrespective of whether or not such Secured Party shall have made any demand hereunder and although said obligations, liabilities, deposits or claims, or any of them, shall be contingent or unmatured. 

14. NOTICE. Except as otherwise specified herein, all notices, requests, demands or other communications to or upon the respective
parties hereto shall be sent or delivered by mail, telecopy or courier service and all such notices and communications shall, when mailed, telecopied or sent by courier, be effective when deposited in the mail, delivered to the overnight courier or
sent by telecopier, except that notices and communications to the Administrative Agent or any Guarantor shall not be effective until received by the Administrative Agent or such Guarantor, as the case may be. All notices and other communications
shall be in writing and addressed to such party at (i) in the case of any Secured Party, as provided in the Credit Agreement and (ii) in the case of any Guarantor, at its address set forth opposite its signature page below; or in any case
at such other address as any of the Persons listed above may hereafter notify the others in writing. 
 15. REINSTATEMENT.
Notwithstanding anything to the contrary contained herein, if any claim is ever made upon any Secured Party for repayment or recovery of any amount or amounts received in payment or on account of any of the Guaranteed Obligations and any of the
aforesaid payees repays all or part of said amount by reason of (i) any judgment, decree or order of any court or administrative body having jurisdiction over such payee or any of its property or (ii) any settlement or compromise of any
such claim effected by such payee with 

  
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any such claimant (including, without limitation, any Borrower), then and in such event each Guarantor agrees that any such judgment, decree, order, settlement or compromise shall be binding upon
such Guarantor, notwithstanding any revocation hereof or the cancellation of any Note, any other Loan Document or any other instrument evidencing any liability of any Borrower, and such Guarantor shall be and remain liable to the aforesaid payees
hereunder for the amount so repaid or recovered to the same extent as if such amount had never originally been received by any such payee. 

16. CONSENT TO JURISDICTION; SERVICE OF PROCESS; AND WAIVER OF TRIAL BY JURY. (a) THIS GUARANTEE AND ANY CLAIMS, CONTROVERSY, DISPUTE OR
CAUSE OF ACTION (WHETHER IN CONTRACT OR TORT OR OTHERWISE) BASED UPON, ARISING OUT OF OR RELATING TO THIS GUARANTEE AND THE TRANSACTIONS CONTEMPLATED HEREBY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE PROVINCE OF ONTARIO
AND THE FEDERAL LAWS OF CANADA APPLICABLE THEREIN. EACH GUARANTOR IRREVOCABLY AND UNCONDITIONALLY AGREES THAT IT WILL NOT COMMENCE ANY ACTION, LITIGATION OR PROCEEDING OF ANY KIND OR DESCRIPTION, WHETHER IN LAW OR EQUITY, WHETHER IN CONTRACT OR IN
TORT OR OTHERWISE, AGAINST ANY SECURED PARTY, OR ANY RELATED PARTY THEREOF IN ANY WAY RELATING TO THIS GUARANTEE OR THE TRANSACTIONS RELATING HERETO, IN ANY FORUM OTHER THAN THE COURTS OF THE PROVINCE OF ONTARIO SITTING IN TORONTO, AND ANY APPELLATE
COURT THEREFROM, AND EACH OF THE PARTIES HERETO IRREVOCABLY AND UNCONDITIONALLY SUBMITS TO THE JURISDICTION OF SUCH COURTS AND AGREES THAT ALL CLAIMS IN RESPECT OF ANY SUCH ACTION, LITIGATION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH ONTARIO
COURT. EACH OF GUARANTORS HEREBY AGREES THAT A FINAL JUDGMENT IN ANY SUCH ACTION, LITIGATION 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. NOTHING IN THIS
GUARANTEE OR IN ANY OTHER LOAN DOCUMENT SHALL AFFECT ANY RIGHT THAT ANY SECURED PARTY MAY OTHERWISE HAVE TO BRING ANY ACTION OR PROCEEDING RELATING TO THIS GUARANTEE OR ANY OTHER LOAN DOCUMENT AGAINST EACH GUARANTOR OR ITS PROPERTIES IN THE COURTS
OF ANY JURISDICTION. EACH GUARANTOR IRREVOCABLY AND UNCONDITIONALLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY OBJECTION THAT IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF VENUE OF ANY ACTION OR PROCEEDING ARISING OUT OF OR
RELATING TO THIS GUARANTEE OR ANY OTHER LOAN DOCUMENT IN ANY COURT REFERRED TO IN SUBSECTION (a) OF THIS SECTION. EACH OF THE GUARANTORS HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, THE DEFENSE OF AN
INCONVENIENT FORUM TO THE MAINTENANCE OF SUCH ACTION OR PROCEEDING IN ANY SUCH COURT. 

  
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 (b) EACH GUARANTOR HEREBY IRREVOCABLY CONSENTS TO SERVICE OF PROCESS IN THE MANNER PROVIDED
FOR NOTICES IN SECTION 14. NOTHING IN THIS GUARANTEE WILL AFFECT THE RIGHT OF ANY GUARANTOR TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY APPLICABLE LAW. 

(c) EACH GUARANTOR HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN
ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS GUARANTEE OR ANY OTHER LOAN DOCUMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY (WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH GUARANTOR
(A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PERSON HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PERSON WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES
THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS GUARANTEE AND THE OTHER LOAN DOCUMENTS BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION. 

17. RELEASE OF LIABILITY OF GUARANTOR. In the event that a Guarantor becomes an Immaterial Subsidiary or all of the Equity Interests of
one or more Guarantors (other than the Company) is sold or otherwise disposed of or liquidated in compliance with the requirements of Section 7.04 or 7.05 of the Credit Agreement (or such sale, other disposition or liquidation has been approved
in writing by the Required Lenders (or all the Lenders if required by Section 10.01 of the Credit Agreement)) and the proceeds of such sale, disposition or liquidation will be applied in accordance with the provisions of the Credit Agreement,
to the extent applicable, such Immaterial Subsidiary, or such Guarantor, as applicable, shall, or upon consummation of such sale or other disposition (except to the extent that such sale or disposition is to the Company or another Subsidiary
thereof), as applicable, shall be released from this Guarantee automatically and without further action and this Guarantee shall, as to each such Guarantor or Guarantors, terminate, and have no further force or effect (it being understood and agreed
that the sale of one or more Persons that own, directly or indirectly, all of the Equity Interests of any Guarantor shall be deemed to be a sale of such Guarantor for the purposes of this Section 17). Subject to Section 15, on the
Termination Date this Guarantee shall terminate (provided that all indemnities set forth herein shall survive such termination) and each Guarantor shall be released from its obligations under this Guarantee. 

18. CONTRIBUTION. At any time a payment in respect of the Guaranteed Obligations is made under this Guarantee, the right of contribution
of each Guarantor against each other Guarantor shall be determined as provided in the immediately following sentence, with the right of contribution of each Guarantor to be revised and restated as of each date on which a payment (a “Relevant
Payment”) is made on the Guaranteed Obligations under this Guarantee. At any time that a Relevant Payment is made by a Guarantor that results in the aggregate payments made by such Guarantor in respect of the Guaranteed Obligations to and
including the date of the Relevant Payment exceeding such Guarantor’s Contribution Percentage (as defined below) of the aggregate payments made by all Guarantors in respect of the Guaranteed Obligations to and including the date of the Relevant
Payment (such excess, the “Aggregate Excess Amount”), each such Guarantor shall have a right of contribution against each other Guarantor who has made payments in respect of the Guaranteed Obligations to and

  
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including the date of the Relevant Payment in an aggregate amount less than such other Guarantor’s Contribution Percentage of the aggregate payments made to and including the date of the
Relevant Payment by all Guarantors in respect of the Guaranteed Obligations (the aggregate amount of such deficit, the “Aggregate Deficit Amount”) in an amount equal to (x) a fraction the numerator of which is the Aggregate
Excess Amount of such Guarantor and the denominator of which is the Aggregate Excess Amount of all Guarantors multiplied by (y) the Aggregate Deficit Amount of such other Guarantor. A Guarantor’s right of contribution pursuant to the
preceding sentences shall arise at the time of each computation, subject to adjustment to the time of each computation; provided that no Guarantor may take any action to enforce such right until the Termination Date, it being expressly
recognized and agreed by all parties hereto that any Guarantor’s right of contribution arising pursuant to this Section 18 against any other Guarantor shall be expressly junior and subordinate to such other Guarantor’s obligations and
liabilities in respect of the Guaranteed Obligations and any other obligations owing under this Guarantee. As used in this Section 18: (i) each Guarantor’s “Contribution Percentage” shall mean the percentage obtained by
dividing (x) the Adjusted Net Worth (as defined below) of such Guarantor by (y) the aggregate Adjusted Net Worth of all Guarantors; (ii) the “Adjusted Net Worth” of each Guarantor shall mean the greater of
(x) the Net Worth (as defined below) of such Guarantor and (y) zero; and (iii) the “Net Worth” of each Guarantor shall mean the amount by which the fair saleable value of such Guarantor’s assets on the date of
any Relevant Payment exceeds its existing debts and other liabilities (including contingent liabilities, but without giving effect to any Guaranteed Obligations arising under this Guarantee or any guaranteed obligations arising under any guarantee
of any Permitted Additional Indebtedness) on such date. Notwithstanding anything to the contrary contained above, any Guarantor that is released from this Guarantee pursuant to Section 17 hereof shall thereafter have no contribution
obligations, or rights, pursuant to this Section 18, and at the time of any such release, if the released Guarantor had an Aggregate Excess Amount or an Aggregate Deficit Amount, same shall be deemed reduced to $0, and the contribution rights
and obligations of the remaining Guarantors shall be recalculated on the respective date of release (as otherwise provided above) based on the payments made hereunder by the remaining Guarantors. All parties hereto recognize and agree that, except
for any right of contribution arising pursuant to this Section 18, each Guarantor who makes any payment in respect of the Guaranteed Obligations shall have no right of contribution or subrogation against any other Guarantor in respect of such
payment until the Termination Date. Each of the Guarantors recognizes and acknowledges that the rights to contribution arising hereunder shall constitute an asset in favour of the party entitled to such contribution. In this connection, each
Guarantor has the right to waive its contribution right against any Guarantor to the extent that after giving effect to such waiver such Guarantor would remain solvent, in the determination of the Required Lenders. 

19. LIMITATION ON GUARANTEED OBLIGATIONS. Each Guarantor and each Secured Party (by its acceptance of the benefits of this Guarantee)
hereby confirms that it is its intention that this Guarantee not constitute a transfer at undervalue or fraudulent transfer or conveyance for purposes of any applicable Debtor Relief Law. To effectuate the foregoing intention, each Guarantor and
each Secured Party (by its acceptance of the benefits of this Guarantee) hereby irrevocably agrees that the Guaranteed Obligations guaranteed by such Guarantor shall be limited to such amount as will, after giving effect to such maximum amount and
all other (contingent or otherwise) liabilities of such Guarantor that are relevant under such laws and after giving effect to any rights to contribution pursuant to any agreement providing for an equitable contribution among such Guarantor and the
other Guarantors, result in the Guaranteed Obligations of such Guarantor in respect of such maximum amount not constituting a fraudulent transfer or conveyance. 

  
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 20. COUNTERPARTS. This Guarantee may be executed in any number of counterparts and by
the different parties hereto on separate counterparts, each of which when so executed and delivered shall be an original, but all of which shall together constitute one and the same instrument. A set of counterparts executed by all the parties
hereto shall be lodged with the Company and the Administrative Agent. 
 21. PAYMENTS. All payments made by any Guarantor hereunder
will be made without setoff, counterclaim or other defense and on the same basis as payments are made by the applicable Borrowers under the Credit Agreement. 

22. JUDGMENT CURRENCY. 

The parties hereto agree that the terms of Section 1.11 of the Credit Agreement are incorporated herein by reference, mutatis
mutandis. 
 23. ADDITIONAL GUARANTORS. It is understood and agreed that any Wholly-Owned Domestic Subsidiary of the Company that
is required to execute a counterpart of this Guarantee after the date hereof pursuant to the Credit Agreement shall become a Guarantor hereunder by (x) executing and delivering a counterpart hereof, a Joinder Agreement or a Guarantee Supplement
in the form attached hereto as Exhibit A, and delivering the same to the Administrative Agent (provided such Guarantee Supplement shall not require the consent of any Guarantor) and (y) taking all actions as specified in this Guarantee
as would have been taken by such Guarantor had it been an original party to this Guarantee, in each case with all documents required above to be delivered to the Administrative Agent and actions required to be taken above to be taken to the
reasonable satisfaction of the Administrative Agent. 
 24. HEADINGS DESCRIPTIVE. The headings of the several Sections of this
Guarantee are inserted for convenience only and shall not in any way affect the meaning or construction of any provision of this Guarantee. 

* * * 

  
 Page 13 

 IN WITNESS WHEREOF, each Guarantor has caused this Canadian Guarantee to be executed and
delivered as of the date first above written. 
  

							
		 	    	 	 GUARANTORS:

	 7035 Ridge Road
 Hanover, Maryland 21076

Attention: Treasurer’s Office
 Facsimile:
	 		 	 CIENA CANADA, INC.

		 		 	By:	 	 /s/ Jiong Liu

	with a copy to:	 		 		 	Name: Jiong Liu
	  
 7035 Ridge Road

Hanover, Maryland 21076
 Attention: General Counsel’s
Office
 Facsimile:
	 		 		 	Title: Jiong Liu

  
 [Signature Page to
Canadian Guarantee] 

			
	Accepted and Agreed to:
	
	 BANK OF AMERICA, N.A.,
 as
Administrative Agent

		
	By:	 	 /s/ John M. Olsen

		 	Name: John M. Olsen
		 	Title: John M. Olsen

  
 [Signature Page to
Canadian Guarantee]EX-10.6

 Exhibit 10.6 

Execution Version 
 CANADIAN
SECURITY AGREEMENT 
 among 

CIENA CANADA, INC., 
 EACH OTHER
GRANTOR 
 FROM TIME TO TIME PARTY HERETO 

and 
 BANK OF AMERICA, N.A., 

as Collateral Agent 
  

 
 Dated as of
October 28, 2019 
  
  

 CANADIAN SECURITY AGREEMENT, dated as of October 28, 2019, made by each of the undersigned
grantors (each, a “Grantor” and, together with any other entity that becomes a grantor hereunder pursuant to Section 8.12 hereof, the “Grantors”) in favour of BANK OF AMERICA, N.A., as collateral agent (in such
capacity, together with any successor collateral agent, the “Collateral Agent”), for the benefit of the Secured Parties. Certain capitalized terms as used herein are defined in Article VII hereof. Except as otherwise defined herein,
all capitalized terms used herein and defined in the Credit Agreement (as defined below) shall be used herein as therein defined. 
 W I T
N E S S E T H: 
 WHEREAS, Ciena Corporation, a Delaware corporation (the “Company”, together with the Domestic
Subsidiaries of the Company that are or become a U.S. Borrower pursuant to the terms of the Credit Agreement, the “U.S. Borrowers”), Ciena Canada, Inc., a corporation incorporated under the laws of Canada (together with the other
Canadian Subsidiaries of the Company that are or become a Canadian Borrower pursuant to the terms of the Credit Agreement, the “Canadian Borrowers”, and the Canadian Borrowers, together with the U.S. Borrowers, collectively, the
“Borrowers”), the lenders from time to time party thereto (the “Lenders”) and Bank of America, N.A., as administrative agent and collateral agent have entered into that certain ABL Credit Agreement, dated as of
October 28, 2019 (as amended, modified, restated and/or supplemented from time to time, the “Credit Agreement”), pursuant to which the Lenders have agreed, on a several basis, to make Loans to the Borrowers upon the terms and
subject to the conditions set forth therein; 
 WHEREAS, pursuant to the Canadian Guarantee, each Grantor has jointly and severally
guaranteed to the Secured Parties the payment when due of all Guaranteed Obligations as described (and defined) therein; 
 WHEREAS, it is a
condition precedent to the making of Loans to the Borrowers that each Grantor shall have executed and delivered to the Collateral Agent this Agreement; and 

WHEREAS, each Grantor will benefit from the incurrence of Loans by the Borrowers; 

NOW, THEREFORE, in consideration of the foregoing and other benefits accruing to each Grantor, the receipt and sufficiency of which are hereby
acknowledged, each Grantor hereby makes the following representations and warranties to the Collateral Agent for the benefit of the Secured Parties and hereby covenants and agrees with the Collateral Agent for the benefit of the Secured Parties as
follows: 

 ARTICLE I 

SECURITY INTERESTS 

1.1. Grant of Security Interests. (a) As security for the prompt and complete payment and performance when due of
its Obligations, each Grantor does hereby assign and transfer unto the Collateral Agent, and does hereby pledge and grant to the Collateral Agent, for the benefit of the Secured Parties, a continuing security interest in all of the right, title and
interest of such Grantor in, to and under all of the following personal property (and all rights therein) of such Grantor, or in which or to which such Grantor has any rights, in each case whether now existing or hereafter from time to time acquired
or arising and regardless of where located: 
  

	 	(i)	 each and every Account (and all rights to receive payments, indebtedness and other obligations (whether
constituting an Account, Chattel Paper (including electronic Chattel Paper), Instrument, Document or Intangible)); 

  

	 	(ii)	 all cash and Money; 

  

	 	(iii)	 the Cash Collateral Account and all monies, securities, Instruments and other investments deposited or required
to be deposited in the Cash Collateral Account; 

  

	 	(iv)	 all (x) Deposit Accounts, collection accounts, disbursement accounts and lock boxes and all cash, Money,
cheques, other negotiable instruments, funds and other evidences of payments held therein or credited thereto, (y) Securities Accounts and Security Entitlements and Securities credited thereto, and all cash, Money, cheques, marketable
securities, Financial Assets and other property held therein or credited thereto, and (z) Futures Accounts and all cash, Money, marketable securities, Financial Assets and other property held therein or credited thereto; 

 

	 	(v)	 all Chattel Paper (including, without limitation, all electronic Chattel Paper); 

 

	 	(vi)	 [reserved]; 

  

	 	(vii)	 all Contracts, together with all Contract Rights arising thereunder; 

 

	 	(viii)	 all Documents; 

  

	 	(ix)	 all Equipment; 

  

	 	(x)	 all fixtures; 

  

	 	(xi)	 all Goods; 

  

	 	(xii)	 all Instruments; 

  

	 	(xiii)	 all Intellectual Property; 

 

	 	(xiv)	 all Promissory Notes; 

 

	 	(xv)	 all Inventory; 

  
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	 	(xvi)	 all Investment Property; 

 

	 	(xvii)	 all Letter-of-Credit Rights
(whether or not the respective letter of credit is evidenced by a writing); 

  

	 	(xviii)	 all Intangibles; 

  

	 	(xix)	 all Payment Intangibles (including corporate and other tax refunds); 

 

	 	(xx)	 all Permits; 

  

	 	(xxi)	 all books and records (including all books, databases, customer lists, and records, whether tangible or
electronic, which contain any information relating to any of the foregoing); 

  

	 	(xxii)	 with respect to each right to payment or performance included in each of the foregoing, any Supporting
Obligation that supports such payment or performance and any Lien that secures such right to payment or performance or secures any such Supporting Obligation; and 

 

	 	(xxiii)	 all substitutions, replacements accessions, Proceeds and products of any and all of the foregoing, including
collateral security and guarantees with respect to any of the foregoing and all cash, Money, insurance proceeds, Instruments, Securities, Financial Assets, income, royalties, payments, licensing, damages and Deposit Accounts constituting Proceeds of
the foregoing (all of the above, the “Collateral”). 

 (b) Notwithstanding anything herein to the
contrary, in no event shall the security interests and Liens granted under Section 1.1(a) hereof attach to, and the term “Collateral” (and the component terms thereof) shall not include, (i) any property, interest or other rights
for so long as the grant of such security interest shall constitute or result in (A) a breach or termination pursuant to the terms of, or a default under, any Intangible, lease, license, contract, agreement or other document, (B) a breach
of any law or regulation which prohibits the creation of a security interest thereunder (other than to the extent that any such term specified in clause (A) or (B) above is rendered ineffective pursuant to the PPSA or other applicable law (or
any successor provision or provisions) of any relevant jurisdiction or any other then-applicable law (including any applicable bankruptcy laws) or principles of equity) or (C) require the consent of a Governmental Authority to permit the grant
of a security interest therein (and such consent has not been obtained); provided, however, that such security interest shall attach immediately at such time as the condition causing such abandonment, invalidation, unenforceability
breach or termination shall no longer be effective and to the extent severable, shall attach immediately to any portion of such property or other rights that does not result in any of the consequences specified in clause (A), (B) or (C) above;
(ii) the Pledge Agreement Collateral, including any asset of a Grantor excluded from the Pledge Agreement Collateral pursuant to the proviso to Section 3.1 of the Pledge Agreement or the corresponding provision of any other Pledge Agreement, as
applicable; (iii) any treasury stock of a Grantor; (iv) Excluded Accounts; (v) any Vehicles and other assets subject to certificates of title (other than to the extent such rights can be perfected by the filing of a financing
statement under the PPSA or other applicable law); (vi) any 

  
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United States “intent-to-use” Trademark application prior to the filing of a “Statement of Use”
or “Amendment to Allege Use” with respect thereto, to the extent, if any, that, and solely during the period, if any, in which the grant of a security interest therein would impair the validity or enforceability of such application under
applicable federal law (other than to the extent such rights can be perfected by the filing of a financing statement under the PPSA or other applicable law); (vii) any Consumer Goods (as defined in the PPSA); and (viii) the last day of the term
of any real property lease or agreement therefor, provided that upon enforcement of the security interest, each Grantor shall stand possessed of such last day in trust or assign the same to any person acquiring such term (the assets described in
preceding clauses (i) through (viii) hereof, collectively, the “Excluded Assets”). 
 (c) The security interest of the
Collateral Agent under this Agreement extends to all Collateral which any Grantor may acquire, or with respect to which any Grantor may obtain rights, at any time during the term of this Agreement. 

(d) Each Grantor confirms that value has been given by the Collateral Agent and the Secured Parties to such Grantor, that such Grantor has
rights in its Collateral existing at the date of this Agreement or the date of any supplement to this Agreement, as applicable, and that such Grantor and the Collateral Agent have not agreed to postpone the time for attachment of the security
interest granted to the Collateral Agent in any of the Collateral of such Grantor pursuant to this Agreement. 
 (e) The Liens hereunder are
granted as security only and shall not subject the Administrative Agent or any other Secured Party to, or transfer or in any way affect or modify, any obligation or liability of any Grantor with respect to any of the Collateral or any transaction in
connection therewith. 
 (f) Notwithstanding anything herein to the contrary, the Grantors make no representations or warranties hereunder,
and the covenants hereunder shall not apply, in respect of the Excluded Assets. 
 1.2. Grant of License. For purposes
of enabling the Collateral Agent to exercise rights and remedies under this Agreement (but without limiting the other provisions of this Agreement), each Grantor hereby grants to the Collateral Agent and its agents, representatives and designees an
irrevocable, nonexclusive, royalty free license, rent-free license and rent-free lease (which will be binding on any successor or assignee of such Grantor) to, after the occurrence and during the continuance of an Event of Default, have access to
and use all of such Grantor’s (x) Equipment and fixtures and (y) Intellectual Property (including, without limitation, all Domain Names, Patents, Trademarks, Copyrights, Trade Secrets and object code and access to all media, written
or electronic, in which any licensed items may be recorded or stored and to all computer software and programs used for the compilation or printout thereof, as well as an irrevocable, nonexclusive license to grant to any third party a sub-licensable sub-license to use the foregoing rights, but excluding any source code) for which the Collateral Agent hereby agrees to take all commercially reasonable actions
in connection with its use of such intellectual property to protect such Grantor’s rights and interest in such Intellectual Property (provided that in any event, the Collateral Agent shall not have any liability in

  
 -4- 

 
connection therewith, other than liability which is the direct result of the Collateral Agent’s gross negligence or willful misconduct, as determined by a court of competent jurisdiction in
a final and non-appealable decision), for the purpose of (i) arranging for and effecting the sale, distribution or other disposition of Collateral, including the manufacture, production, completion,
packaging, advertising, distribution and other preparation of such Collateral (including, without limitation, work-in-process, raw materials and complete Inventory) for
sale, distribution or other disposition, (ii) selling (by public auction, private sale, going out of business sale or similar sale, whether in bulk, in lots or to customers in the ordinary course of business or otherwise and which sale may
include augmented Inventory of the same type sold in any Grantor’s business), (iii) storing or otherwise dealing with the Collateral, (iv) collecting all Accounts and copying, using and preserving any and all information relating to the
Collateral, and (v) otherwise dealing with the Collateral as part of the exercise of any rights or remedies provided to the Collateral Agent hereunder or under the other Loan Documents, in each case without the interference by any Grantor or
any other Subsidiary of the Company and without incurring any liability to any Grantor or any other Subsidiary of the Company, except any liability which is the direct result of the Collateral Agent’s gross negligence or willful misconduct (as
determined by a court of competent jurisdiction in a final and non-appealable decision). Each Grantor will, and will cause each of its Subsidiaries to, cooperate with the Collateral Agent and its agents,
representatives and designees in allowing the Collateral Agent to exercise the foregoing rights. To the extent that any asset of any Grantor in which the Collateral Agent has access or use rights as provided above is to be sold or otherwise disposed
of after the occurrence and during the continuance of an Event of Default, such Grantor shall, if requested by the Collateral Agent in writing, cause the buyer to agree in writing to be subject to, and comply with the terms of, this
Section 1.2. The Collateral Agent shall have the right to bring an action to enforce its rights under this Section 1.2, including, without limitation, an action seeking possession of the applicable Collateral and/or specific performance of
this Section 1.2. 
 1.3. Power of Attorney. Subject to any Applicable Intercreditor Agreement, until this
Agreement is terminated in accordance with its terms, each Grantor hereby constitutes and appoints the Collateral Agent its true and lawful attorney, irrevocably, with full power after the occurrence of and during the continuance of an Event of
Default (in the name of such Grantor or otherwise) to act, require, demand, receive, compound and give acquittance for any and all moneys and claims for moneys due or to become due to such Grantor under or arising out of the Collateral, to endorse
any cheques or other instruments or orders in connection therewith and to file any claims or take any action or institute any proceedings which the Collateral Agent may deem to be necessary or advisable to protect the interests of the Secured
Parties, which appointment as attorney is coupled with an interest. 

  
 -5- 

 ARTICLE II 

GENERAL REPRESENTATIONS, WARRANTIES AND COVENANTS 

Each Grantor represents, warrants and covenants, which representations, warranties and covenants shall survive execution and delivery of this
Agreement, as follows: 
 2.1. Necessary Perfection Action. The provisions of this Agreement (when executed and
delivered by all parties thereto) are effective to create in favour of the Collateral Agent, for the benefit of the Secured Parties, a legal, valid and enforceable security interest in all right, title and interest of the Canadian Loan Parties in
all of the Collateral described herein, and when (i) proper PPSA financing statements have been filed in the appropriate filing offices against each Canadian Loan Party, and (ii) the recordation of Intellectual Property Security Agreements
with the CIPO, the Collateral Agent, for the benefit of the Secured Parties, shall have a perfected security interest in all right, title and interest in all of the Collateral described herein of such Canadian Loan Party to the extent such security
interest can be perfected by (i) filing a PPSA financing statement under the PPSA or other applicable law, or (ii) filing with the CIPO, subject to no other Liens other than Permitted Liens (subject to the terms of any Applicable
Intercreditor Agreement). 
 2.2. No Liens. Such Grantor is, and as to all Collateral acquired by it from time to time
after the date hereof such Grantor will be, the owner of all Collateral free from any Lien, security interest, encumbrance or other right, title or interest of any Person (other than Permitted Liens), and such Grantor shall defend the Collateral
against all claims and demands of all Persons at any time claiming the same or any interest therein adverse to the Collateral Agent (other than Permitted Liens). 

2.3. Other Financing Statements. As of the date hereof, there is no financing statement, financing change statement or
similar statement or instrument of registration under the law of any relevant jurisdiction covering or purporting to cover any interest of any kind in the Collateral (other than financing statements, financing change statements or similar statements
or instruments of registration filed in respect of Permitted Liens), and so long as the Termination Date has not occurred, such Grantor will not execute or authorize to be filed in any public office any financing statement, financing change
statements or similar statement or instrument of registration under the law of any jurisdiction or statements relating to the Collateral, except financing statements filed or to be filed in respect of and covering the security interests granted
hereby by such Grantor or in connection with Permitted Liens. 
 2.4. Location of Inventory and Equipment. All
Inventory and Equipment having a net book value in excess of US$1,000,000 held on the date hereof by each Grantor, other than any such Inventory and Equipment (i) in transit or out for repair, (ii) at customer, resellers, supplier or
contract manufacturer locations, (iii) located outside of Canada or (iv) at locations used solely by such Grantor for purposes of warehousing spare parts, is located at one of the locations shown on Annex F hereto for such Grantor. 

2.5. Chief Executive Office, Registered Office, Record Locations. The chief executive office and registered office of
such Grantor is, on the date of this Agreement, located at the address indicated on Annex A hereto for such Grantor. During the period of the four calendar months preceding the date of this Agreement, the chief executive office and registered office
of such Grantor has not been located at any address other than that indicated on Annex A in accordance with the immediately preceding sentence, in each case unless each such other address is also indicated on Annex A hereto for such Grantor. 

  
 -6- 

 2.6. Legal Names; Type of Organization (and Whether a Canadian Registered
Organization); Jurisdiction of Organization; Location; Organizational Identification Numbers; Changes Thereto; etc. As of the date hereof, the exact legal name of each Grantor, the type of organization of such Grantor, whether or not such
Grantor is a Canadian Registered Organization, the jurisdiction of organization of such Grantor, such Grantor’s Location, and the organizational identification number (if any) of such Grantor is listed on Annex B hereto for such Grantor. Such
Grantor shall not change its legal name, its type of organization, its status as a Canadian Registered Organization, its jurisdiction of organization, its Location or its organizational identification number (if any) from that used on Annex B
hereto, except that any such changes shall be permitted (so long as not in violation of the applicable requirements of the Loan Documents and so long as same do not involve (x) a Canadian Registered Organization ceasing to constitute same or
(y) such Grantor changing its jurisdiction of organization or Location from Canada or a province or territory thereof to a jurisdiction of organization or Location, as the case may be, outside Canada or a province or territory thereof) if
(i) it shall have given to the Collateral Agent not less than 10 days’ prior written notice of each change to the information listed on Annex B (as adjusted for any subsequent changes thereto previously made in accordance with this
sentence), together with a supplement to Annex B which shall correct all information contained therein for such Grantor, and (ii) in connection with the respective change or changes, it shall have taken all action reasonably necessary or
requested by the Collateral Agent to maintain the security interests of the Collateral Agent in the Collateral intended to be granted hereby at all times fully perfected and in full force and effect. In addition, to the extent that such Grantor does
not have an organizational identification number on the date hereof and later obtains one, such Grantor shall promptly thereafter notify the Collateral Agent of such organizational identification number and shall take all actions reasonably
requested by the Collateral Agent to the extent necessary to maintain the security interest of the Collateral Agent in the Collateral intended to be granted hereby fully perfected and in full force and effect. 

2.7. Trade Names; etc. As of the date hereof, such Grantor does not have or operate in any jurisdiction under, or in the
five years preceding the date hereof has not had or has not operated in any jurisdiction under, any trade names, fictitious names or other names except its legal name as specified in Annex B and such other trade or fictitious names as are listed on
Annex C hereto for such Grantor. 
 2.8. Certain Significant Transactions. During the
one-year period preceding the date of this Agreement, no Person shall have merged or consolidated with or into any Grantor, and no Person shall have liquidated into, or transferred all or substantially all of
its assets to, any Grantor, in each case except as described in Annex D hereto. With respect to any transactions so described in Annex D hereto, the respective Grantor shall have furnished such information with respect to the Person (and the assets
of the Person and locations thereof) which merged with or into or consolidated with such Grantor, or was liquidated into or transferred all or substantially all of its assets to such Grantor, and shall have furnished, or caused to be furnished, to
the Collateral Agent such PPSA searches as may have been requested by the Collateral Agent with respect to such Person and its assets, to establish that no security interest (excluding Permitted Liens) continues perfected on the date hereof with
respect to any Person described above (or the assets transferred to the respective Grantor by such Person). 

  
 -7- 

 2.9. Collateral in the Possession of a Bailee. Without limiting the
provisions of the Credit Agreement, if a Specified ABL Event of Default shall occur and be continuing and if any Inventory or other Goods, other than Inventory or Goods having a market value not in excess of US$5,000,000 in the aggregate, are in the
possession of a bailee, such Grantor shall promptly notify the Collateral Agent thereof and, if requested by the Collateral Agent, shall use its commercially reasonable efforts to promptly obtain an acknowledgment from such bailee, in form and
substance reasonably satisfactory to the Collateral Agent, that the bailee holds such Collateral for the benefit of the Collateral Agent and shall act upon the instructions of the Collateral Agent, without the further consent of such Grantor. The
Collateral Agent agrees with such Grantor that the Collateral Agent shall not give any such instructions unless a Specified ABL Event of Default has occurred and is continuing. 

2.10. Recourse. This Agreement is made with full recourse to each Grantor and pursuant to and upon all the warranties,
representations, covenants and agreements on the part of such Grantor contained herein and in the other Loan Documents and otherwise in writing in connection herewith or therewith. 

ARTICLE III 
 SPECIAL PROVISIONS
CONCERNING ACCOUNTS; CONTRACT RIGHTS; 
 INSTRUMENTS; CHATTEL PAPER AND CERTAIN OTHER COLLATERAL 

3.1. Additional Representations and Warranties. As of the time when any of its Eligible Accounts arises, each Grantor
shall be deemed to have represented and warranted that each such Eligible Account, and all material records, papers and documents relating thereto (if any) are genuine and what they purport to be, and that all material papers and documents (if any)
relating thereto will, to the knowledge of a Responsible Officer of such Grantor, represent the genuine, legal, valid and binding obligation of the account debtor evidencing indebtedness unpaid and owed by the respective account debtor arising out
of the performance of labour or services or the sale or lease and delivery of the merchandise listed therein, or both, enforceable against the account debtor in accordance with its terms, subject to applicable bankruptcy, insolvency or other similar
laws generally affecting creditors’ rights and equitable principles. 
 3.2. Maintenance of Records. Each Grantor
will keep and maintain at its own cost and expense accurate records of its Accounts and Contracts, in accordance with Section 6.09 of the Credit Agreement, and such Grantor will make the same available on such Grantor’s premises to the
Collateral Agent for inspection in accordance with Section 6.10 of the Credit Agreement. Upon the occurrence and during the continuance of an Event of Default and at the request of the Collateral Agent, such Grantor shall, at its own cost and
expense, deliver copies (or, if requested by the Collateral Agent after the occurrence and during the continuance of an Event of Default, originals) of all tangible evidence of its Accounts and Contract Rights (including, without limitation, all
documents evidencing the Accounts and all Contracts) and such books and records to the Collateral Agent or to its 

  
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representatives (copies of such evidence and books and records may be retained by such Grantor). Upon the occurrence and during the continuance of an Event of Default and if the Collateral Agent
so directs, such Grantor shall legend, in form and manner reasonably satisfactory to the Collateral Agent, the Accounts and the Contracts, as well as books, records and documents (if any) of such Grantor evidencing or pertaining to such Accounts and
Contracts with an appropriate reference to the fact that such Accounts and Contracts have been assigned to the Collateral Agent and that the Collateral Agent has a security interest therein. 

3.3. Direction to Account Debtors; Contracting Parties; etc. Subject to any Applicable Intercreditor Agreement, upon the
occurrence and during the continuance of a Dominion Period, if the Collateral Agent so directs any Grantor, such Grantor agrees (x) to cause all payments on account of the Accounts and Contracts to be made directly to the Cash Collateral
Account, (y) that the Collateral Agent may, at its option, directly notify the obligors with respect to any Accounts and/or under any Contracts to make payments with respect thereto as provided in the preceding clause (x), and (z) that the
Collateral Agent may enforce collection of any such Accounts and Contracts and may adjust, settle or compromise the amount of payment thereof, in the same manner and to the same extent as such Grantor. Subject to any Applicable Intercreditor
Agreement, without notice to or assent by any Grantor, the Collateral Agent may, upon the occurrence and during the continuance of an Event of Default, apply any or all amounts then in, or thereafter deposited in, the Cash Collateral Account toward
the payment of the Obligations in the manner provided in Section 5.4 of this Agreement. The reasonable out-of-pocket costs and expenses of collection (including
reasonable out-of-pocket legal fees), whether incurred by a Grantor or the Collateral Agent, shall be borne by the relevant Grantor. The Collateral Agent shall deliver a
copy of each notice given to any such obligors referred to in the preceding clause (y) to the relevant Grantor, provided that (x) the failure by the Collateral Agent to so notify such Grantor shall not affect the effectiveness of
such notice or the other rights of the Collateral Agent created by this Section 3.3 and (y) no such notice shall be required if an Event of Default of the type described in Section 8.01(f) of the Credit Agreement has occurred and is
continuing. 
 3.4. Modification of Terms; etc. Except (w) in accordance with such Grantor’s ordinary course
of business, (x) as otherwise in such Grantor’s reasonable business judgment, (y) as permitted by the Credit Agreement or (z) as permitted by Section 3.5 hereof, no Grantor shall rescind or cancel any
indebtedness evidenced by any Account or under any related Contract, or modify any term thereof or make any adjustment with respect thereto, or extend or renew the same, or compromise or settle any dispute, claim, suit or legal proceeding relating
thereto, or sell any Account or any related Contract, or interest therein, without the prior written consent of the Collateral Agent. Except to the extent otherwise permitted by this Agreement or the Credit Agreement, no Grantor will do anything to
impair the rights of the Collateral Agent in the Accounts or Contracts. 

  
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 3.5. Collection. Except as such Grantor otherwise determines in its
reasonable business judgment, each Grantor shall endeavor in accordance with reasonable business practices to cause to be collected from the account debtor named in each of its Accounts or obligor under any related Contract, as and when due
(including, without limitation, amounts which are delinquent, such amounts to be collected in accordance with generally accepted lawful collection procedures) any and all amounts owing under or on account of such Account or related Contract, and
apply promptly upon receipt thereof all such amounts as are so collected to the outstanding balance of such Account or under such related Contract. Except as otherwise directed by the Collateral Agent after the occurrence and during the
continuation of an Event of Default, any Grantor may allow in the ordinary course of business as adjustments to amounts owing under its Accounts and related Contracts (i) an extension or renewal of the time or times of payment, or settlement
for less than the total unpaid balance, which such Grantor finds appropriate in accordance with its reasonable business judgment, (ii) a refund or credit due as a result of returned or damaged merchandise or improperly performed services or for
other reasons which such Grantor finds appropriate in accordance with its reasonable business judgment and (iii) such other adjustments which such Grantor finds appropriate in accordance with its reasonable business judgment. 

3.6. Instruments. If any Grantor owns or acquires any Instrument of US$3,000,000 or more constituting Collateral (other
than (x) cheques and other payment instruments received and collected in the ordinary course of business and (y) any Instrument subject to pledge pursuant to the Pledge Agreement), such Grantor will within 30 days thereafter notify the
Collateral Agent thereof, and upon request by the Collateral Agent will promptly deliver such Instrument to the Collateral Agent appropriately endorsed to the order of the Collateral Agent. 

3.7. Grantors Remain Liable Under Accounts. Anything herein to the contrary notwithstanding, the Grantors shall remain
liable under each of the Accounts to observe and perform all of the conditions and obligations to be observed and performed by them thereunder, all in accordance with the terms of any agreement giving rise to such Accounts. Neither the Collateral
Agent nor any other Secured Party shall have any obligation or liability under any Account (or any agreement giving rise thereto) by reason of or arising out of this Agreement or the receipt by the Collateral Agent or any other Secured Party of any
payment relating to such Account pursuant hereto, nor shall the Collateral Agent or any other Secured Party be obligated in any manner to perform any of the obligations of any Grantor under or pursuant to any Account (or any agreement giving rise
thereto), to make any payment, to make any inquiry as to the nature or the sufficiency of any payment received by them or as to the sufficiency of any performance by any party under any Account (or any agreement giving rise thereto), to present or
file any claim, to take any action to enforce any performance or to collect the payment of any amounts which may have been assigned to them or to which they may be entitled at any time or times. 

3.8. Grantors Remain Liable Under Contracts. Anything herein to the contrary notwithstanding, the Grantors shall remain
liable under each of the Contracts to observe and perform all of the conditions and obligations to be observed and performed by them thereunder, all in accordance with and pursuant to the terms and provisions of each Contract. Neither the Collateral
Agent nor any other Secured Party shall have any obligation or liability under any Contract by reason of or arising out of this Agreement or the receipt by the Collateral Agent or any other Secured Party of any payment relating to such Contract
pursuant hereto, nor shall the Collateral Agent or any other Secured Party be 

  
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obligated in any manner to perform any of the obligations of any Grantor under or pursuant to any Contract, to make any payment, to make any inquiry as to the nature or the sufficiency of any
performance by any party under any Contract, to present or file any claim, to take any action to enforce any performance or to collect the payment of any amounts which may have been assigned to them or to which they may be entitled at any time or
times. 
 3.9. Letter-of-Credit
Rights. At any time any Grantor becomes a beneficiary under a letter of credit with a stated amount of US$3,000,000 or more in the aggregate, such Grantor shall at the time of delivery of any financial statements required to be delivered
pursuant to Section 6.01(a) or 6.01(b) of the Credit Agreement, notify the Collateral Agent thereof and, upon the request of the Collateral Agent, such Grantor shall, pursuant to an agreement in form and substance reasonably satisfactory to the
Collateral Agent, use its commercially reasonable efforts to (i) arrange for the issuer and any confirmer of such letter of credit to consent to an assignment to the Collateral Agent of the proceeds of any drawing under such letter of credit or
(ii) arrange for the Collateral Agent to become the transferee beneficiary of such letter of credit, with the Collateral Agent agreeing, in each case, that the proceeds of any drawing under the letter of credit are retained by the Collateral
Agent and to be applied as provided in this Agreement only after the occurrence and during the continuance of an Event of Default. 

3.10. [Reserved]; 

3.11. Chattel Paper. Subject to any Applicable Intercreditor Agreement, upon the request of the Collateral Agent made at
any time or from time to time, each Grantor shall promptly furnish to the Collateral Agent a list of all electronic Chattel Paper constituting Collateral held or owned by such Grantor. Furthermore, if requested by the Collateral Agent, each Grantor
shall promptly take all actions which are commercially reasonably so that the Collateral Agent has “control” of all electronic Chattel Paper, to the extent that the aggregate value or face amount of such electronic Chattel Paper equals or
exceeds US$3,000,000 in the aggregate. Each Grantor will promptly (and in any event within 10 days) after any request by the Collateral Agent deliver all of its tangible Chattel Paper to the Collateral Agent, to the extent that the aggregate value
or face amount of such tangible Chattel Paper equals or exceeds US$3,000,000 in the aggregate. 
 3.12. [Reserved].

 3.13. Recordable Intellectual Property. (a) Annex G hereto sets forth as of the date hereof a complete and
accurate list of all Recordable Intellectual Property that each Grantor owns. Each Grantor represents and warrants that as of the date hereof it is the sole owner of all right, title and interest in all Recordable Intellectual Property listed in
Annex G hereto, except where the failure to have such sole ownership could not reasonably be expected, either individually or in the aggregate, to have a Material Adverse Effect. Each Grantor represents and warrants that: 

(i) no Recordable Intellectual Property listed in Annex G hereto has been canceled nor is any cancelation or opposition action pending, to the
knowledge of any Responsible Officer of such Grantor; 

  
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 (ii) all such Recordable Intellectual Property is valid and subsisting; 

(iii) such Grantor is not aware of any pending third-party claim that any of said registrations of Recordable Intellectual Property are
invalid or unenforceable; and 
 (iv) such Grantor has not been advised in writing by counsel or by the relevant Intellectual Property
Office, nor is such Grantor otherwise aware of any reason, that any of said applications of Recordable Intellectual Property will not mature into registrations, 

other than, in the case of each of the foregoing clauses (i) through (iv), as would not reasonably be expected to have, either
individually or in the aggregate, a Material Adverse Effect. 
 Each Grantor hereby grants to the Collateral Agent an absolute power of
attorney to sign, solely upon the occurrence and during the continuance of an Event of Default, any document which may be required by the CIPO, any domain name registrar or any other governmental authority in order to effect an assignment of all
right, title and interest in any Intellectual Property constituting Collateral, and record the same. 
 (b) Each Grantor agrees, within 60
days of the end of each fiscal year of the Company, to notify the Collateral Agent in writing of the name and address of, and to furnish such pertinent information that may be available to such Grantor with respect to: (i) any party who such
Grantor reasonably believes is infringing, misappropriating, diluting or otherwise violating any of such Grantor’s rights in and to any Intellectual Property in any manner that would reasonably be expected to have a Material Adverse Effect, or
(ii) any party, to the knowledge of any Responsible Officer of such Grantor, claiming that any Grantor or the conduct of any Grantor’s business infringes, misappropriates, dilutes or otherwise violates any Intellectual Property right of
any third party in any manner that would reasonably be expected to have a Material Adverse Effect. Each Grantor further agrees to take all necessary action, in accordance with its reasonable business judgment, with respect to any Person infringing,
misappropriating, diluting or otherwise violating any Intellectual Property owned by it if failure to do so would reasonably be expected to have a Material Adverse Effect. 

(c) Each Grantor agrees to use its Trademarks that are material to the business of the Company and its Subsidiaries, taken as a whole, during
the time in which this Agreement is in effect to the extent required by the laws of Canada or other jurisdictions, as applicable, to maintain its rights in such Trademarks and to take all such other actions as are reasonably necessary to preserve
such Trademarks as trademarks or service marks under the laws of Canada or other jurisdictions, as applicable (other than any such Trademarks that are deemed by a Grantor in its reasonable business judgment to no longer be material to the conduct of
such Grantor’s business). 

  
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 (d) Each Grantor shall, at its own expense, diligently maintain all registrations and
applications for registration included in the Recordable Intellectual Property that are material to the business of the Company and its Subsidiaries, taken as a whole, in accordance with its reasonable business judgment, including but not limited to
filing affidavits of use and applications for renewals of registration for all such Recordable Intellectual Property constituting registered Trademarks and timely payment of all post-issuance fees required to maintain in force its rights under each
such Recordable Intellectual Property constituting issued Patent or registered Copyright, and shall pay all fees and disbursements in connection therewith and shall not abandon any such registration, filing of affidavit of use or application of
renewal prior to the exhaustion of all administrative and judicial remedies without prior written consent of the Collateral Agent, not to be unreasonably withheld (other than with respect to registrations and applications deemed by such Grantor in
its reasonable business judgment to be no longer prudent to pursue). 
 (e) At its own expense, each Grantor, in accordance with its
reasonable business judgment, shall diligently prosecute all material applications for (i) Patents listed in Annex G hereto and (ii) Copyrights listed in Annex G hereto, in each case for such Grantor and shall not abandon any such
application prior to exhaustion of all administrative and judicial remedies (other than applications that are no longer material or are deemed by such Grantor in its reasonable business judgment to no longer be necessary in the conduct of
Grantor’s business), absent written consent of the Collateral Agent not to be unreasonably withheld. 
 (f) In the event that any
Grantor, either itself or through any agent, employee, licensee or designee, files an application for or acquires any Recordable Intellectual Property following the date hereof, then the provisions of this Agreement shall automatically apply thereto
and any such Intellectual Property shall automatically constitute part of the Collateral and shall be subject to the Collateral Agent’s security interest, without further action by any party, and such Grantor shall within 60 days of the end of
each fiscal year of the Company execute and deliver any and all agreements, instruments, documents and papers, including any applicable Intellectual Property Security Agreement, as necessary to evidence and perfect the Collateral Agent’s
security interest in such Recordable Intellectual Property provided that such agreements, instruments, documents and papers (the “Writings”) are consistent with the terms of and conditions of this Agreement, and each Grantor hereby
appoints the Collateral Agent as its attorney-in-fact to execute and file such Writings, solely upon the occurrence and during the continuance of an Event of Default and
solely for the foregoing purposes, all acts of such attorney being hereby ratified and confirmed; such power, being coupled with an interest, is irrevocable until this Agreement is terminated. 

ARTICLE IV 
 PROVISIONS CONCERNING
ALL COLLATERAL 
 4.1. Protection of Collateral Agent’s Security. Except as otherwise permitted by the Loan
Documents, no Grantor will do anything to impair the rights of the Collateral Agent in the Collateral. Each Grantor will at all times maintain insurance, at such Grantor’s own expense to the extent and in the manner provided in the Credit
Agreement. Except to the extent otherwise permitted to be retained by such Grantor or applied by such 

  
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Grantor pursuant to the terms of the Credit Agreement and any Applicable Intercreditor Agreement, the Collateral Agent shall, at the time any proceeds of such insurance are distributed to the
Secured Parties, apply such proceeds in accordance with Section 5.4 hereof. Each Grantor assumes all liability and responsibility in connection with the Collateral acquired by it and the liability of such Grantor to pay its Obligations shall in
no way be affected or diminished by reason of the fact that such Collateral may be lost, destroyed, stolen, damaged or for any reason whatsoever unavailable to such Grantor. 

4.2. Additional Information. Each Grantor will, at its own expense, from time to time upon the reasonable request of the
Collateral Agent, promptly (and in any event within 10 days after its receipt of the respective request) furnish to the Collateral Agent such information with respect to the Collateral (including the identity of the Collateral or such components
thereof as may have been requested by the Collateral Agent, the value and location of such Collateral, etc.) as may be requested by the Collateral Agent. Without limiting the forgoing, each Grantor agrees that it shall promptly (and in any event
within 10 days after its receipt of the respective request) furnish to the Collateral Agent such updated Annexes hereto as may from time to time be reasonably requested by the Collateral Agent. 

4.3. Financing Statements. Each Grantor agrees to execute and deliver (or cause to be executed and delivered) to the
Collateral Agent such financing statements or financing change statements in form reasonably acceptable to the Collateral Agent, as the Collateral Agent may from time to time reasonably request or as are reasonably necessary or desirable in the
opinion of, and at the request of, the Collateral Agent to establish and maintain a valid, enforceable, perfected security interest in the Collateral as provided herein and the other rights and security contemplated hereby. Each Grantor will pay any
applicable filing fees, recordation taxes and related expenses relating to its Collateral. Each Grantor hereby authorizes the Collateral Agent to file any such financing statements or financing change statements without the signature of such Grantor
where permitted by law (and such authorization includes describing the Collateral as “all assets” of such Grantor or words of similar effect). Notwithstanding the foregoing, if reasonably requested by any Grantor, the Collateral Agent
shall, at Grantor’s expense, make such filings as may be reasonably requested to evidence that the security interests hereunder do not attach to any property that constitutes Excluded Assets. 

4.4. Further Actions. The Company shall, and shall cause each other Grantor to, at their own expense, take such other
actions as are required by Section 6.12 of the Credit Agreement. 
 ARTICLE V 

REMEDIES UPON OCCURRENCE OF AN EVENT OF DEFAULT 

5.1. Remedies; Obtaining the Collateral Upon Default. Each Grantor agrees that, subject to any Applicable Intercreditor
Agreement, if any Event of Default shall have occurred and be continuing, then and in every such case, the Collateral Agent, in addition to any rights now or hereafter existing under applicable law and under the other provisions of this Agreement,
shall have all rights as a secured creditor under the PPSA or other applicable law, and such additional rights and remedies to which a secured creditor is entitled under the laws in effect in all relevant jurisdictions and may: 

(i) personally, or by agents or attorneys, immediately take possession of the Collateral or any part thereof, from such Grantor
or any other Person who then has possession of any part thereof with or without notice or process of law, and for that purpose may enter upon such Grantor’s premises where any of the Collateral is located and remove the same and use in
connection with such removal any and all services, supplies, aids and other facilities of such Grantor; 

  
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 (ii) instruct the obligor or obligors on any agreement, instrument or other
obligation (including, without limitation, the Accounts and the Contracts) constituting the Collateral to make any payment required by the terms of such agreement, instrument or other obligation directly to the Collateral Agent and may exercise any
and all remedies of such Grantor in respect of such Collateral; 
 (iii) instruct all banks which have entered into a control
agreement with the Collateral Agent to transfer all monies, securities and instruments held by such depositary bank to the Cash Collateral Account; 

(iv) sell, assign or otherwise liquidate any or all of the Collateral or any part thereof in accordance with Section 5.2
hereof, or direct such Grantor to sell, assign or otherwise liquidate any or all of the Collateral or any part thereof, and, in each case, take possession of the proceeds of any such sale or liquidation; 

(v) take possession of the Collateral or any part thereof, by directing such Grantor in writing to deliver the same to the
Collateral Agent at any reasonable place or places designated by the Collateral Agent, in which event such Grantor shall at its own expense: 

(x) forthwith cause the same to be moved to the place or places so designated by the Collateral Agent and there delivered to
the Collateral Agent; 
 (y) store and keep any Collateral so delivered to the Collateral Agent at such place or places
pending further action by the Collateral Agent as provided in Section 5.2 hereof; and 
 (z) while the Collateral shall
be so stored and kept, provide such security and maintenance services as shall be reasonably necessary to protect the same and to preserve and maintain it in good condition; 

(vi) exercise the rights granted under Sections 1.2 and 1.3 hereof; 

(vii) apply any monies constituting Collateral or proceeds thereof in accordance with the provisions of Section 5.4; 

(viii) license or sublicense, on a royalty free, rent basis, whether on an exclusive or nonexclusive basis, any Intellectual
Property included in the Collateral (in the case of 

  
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Trademarks, subject to reasonable quality control and subject to those exclusive licenses granted by Grantors in effect on the date hereof and those granted by any Grantor hereafter to the extent
permitted by the Credit Agreement) for such term and on such conditions and in such manner as the Collateral Agent shall in its sole judgment determine, it being understood that any such license, may be exercised, at the option of the Collateral
Agent, only upon the occurrence and during the continuation of an Event of Default; provided, that any such license shall be binding upon the Grantors notwithstanding any subsequent cure of an Event of Default; and 

(ix) if it so elects, shall have the right to, seek the appointment of a receiver, interim receiver, receiver-manager, or a receiver and
manager or keeper (each a “Receiver”) to take possession of Collateral and to enforce any of the Collateral Agent’s remedies, or may institute proceedings in any court of competent jurisdiction for the appointment of such
Receiver and each Grantor hereby consents to such rights and such appointment and hereby waives any objection such Grantor may have thereto or the right to have a bond or other security posted by the Collateral Agent. Any such Receiver given and
shall have the same powers and rights and exclusions and limitations of liability as the Collateral Agent has under this Agreement, at law or in equity. To the extent permitted by applicable law, any Receiver appointed by the Collateral Agent shall
(for purposes relating to responsibility for the Receiver’s acts or omissions) be considered to be the agent of any such Grantor and not of the Collateral Agent. The Collateral Agent may from time to time fix the Receiver’s remuneration
and the Grantors shall pay the amount of such remuneration to the Collateral Agent. The Collateral Agent may appoint one or more Receivers hereunder and may remove any such Receiver or Receivers and appoint another or others in his or their stead
from time to time. Any Receiver so appointed may be an officer or employee of the Collateral Agent. A court need not appoint, ratify the appointment by the Collateral Agent, or otherwise supervise in any manner the actions, of any Receiver. Upon a
Grantor receiving notice from the Collateral Agent of the taking of possession of the Collateral or the appointment of a Receiver, all powers, functions, rights and privileges of each of the directors and officers of the Grantors with respect to the
Collateral shall cease, unless specifically continued by the written consent of the Collateral Agent; 
 it being understood that each Grantor’s
obligation so to deliver the Collateral is of the essence of this Agreement and that, accordingly, upon application to a court of equity having jurisdiction, the Collateral Agent shall be entitled to a decree requiring specific performance by such
Grantor of said obligation. By accepting the benefits of this Agreement and each other Collateral Document, the Secured Parties expressly acknowledge and agree that this Agreement and each other Collateral Document may be enforced only by the action
of the Collateral Agent acting upon the instructions of the Required Lenders and that no other Secured Party shall have any right individually to seek to enforce or to enforce this Agreement or to realize upon the security to be granted hereby, it
being understood and agreed that such rights and remedies may be exercised by the Collateral Agent for the benefit of the Secured Parties upon the terms of this Agreement and the other Collateral Documents. 

  
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 5.2. Remedies; Disposition of the Collateral. If any Event of Default
shall have occurred and be continuing, then, subject to any Applicable Intercreditor Agreement, any Collateral repossessed by the Collateral Agent under or pursuant to Section 5.1 hereof and any other Collateral whether or not so repossessed by
the Collateral Agent, may be sold, assigned, leased or otherwise disposed of under one or more contracts or as an entirety, and without the necessity of gathering at the place of sale the property to be sold, and in general in such manner, at such
time or times, at such place or places and on such terms as the Collateral Agent may, in compliance with any mandatory requirements of applicable law, determine to be commercially reasonable. Any of such Collateral may be sold, leased or otherwise
disposed of, in the condition in which the same existed when taken by the Collateral Agent or after any overhaul or repair at the expense of the relevant Grantor which the Collateral Agent shall determine to be commercially reasonable. Any such
sale, lease or other disposition may be effected by means of a public disposition or private disposition, effected in accordance with the applicable requirements (in each case if and to the extent applicable) of the PPSA and/or such other mandatory
requirements of applicable law as may apply to the respective disposition. The Collateral Agent may, without notice or publication, adjourn any public or private disposition or cause the same to be adjourned from time to time by announcement at the
time and place fixed for the disposition, and such disposition may be made at any time or place to which the disposition may be so adjourned. To the extent permitted by any such requirement of law, the Collateral Agent may bid for and become the
purchaser (and may pay all or any portion of the purchase price by crediting Obligations against the purchase price) of the Collateral or any item thereof, offered for disposition in accordance with this Section 5.2 without accountability to
the relevant Grantor. If, under applicable law, the Collateral Agent shall be permitted to make disposition of the Collateral within a period of time which does not permit the giving of notice to the relevant Grantor as hereinabove specified, the
Collateral Agent need give such Grantor only such notice of disposition as shall be required by such applicable law. Each Grantor agrees to do or cause to be done all such other acts and things as may be reasonably necessary to make such disposition
or dispositions of all or any portion of the Collateral valid and binding and in compliance with any and all applicable laws, regulations, orders, writs, injunctions, decrees or awards of any and all courts, arbitrators or governmental
instrumentalities, domestic or foreign, having jurisdiction over any such sale or sales, all at such Grantor’s expense. 

5.3. Waiver of Claims. Except as otherwise provided in this Agreement, EACH GRANTOR HEREBY WAIVES, TO THE EXTENT
PERMITTED BY APPLICABLE LAW, NOTICE AND JUDICIAL HEARING IN CONNECTION WITH THE COLLATERAL AGENT’S TAKING POSSESSION OR THE COLLATERAL AGENT’S DISPOSITION OF ANY OF THE COLLATERAL, IN EACH CASE AFTER THE OCCURRENCE AND DURING THE
CONTINUANCE OF AN EVENT OF DEFAULT, INCLUDING, WITHOUT LIMITATION, ANY AND ALL PRIOR NOTICE AND HEARING FOR ANY PREJUDGMENT REMEDY OR REMEDIES, and each Grantor hereby further waives, to the extent permitted by law: 

(i) all damages occasioned by such taking of possession or any such disposition except any damages which are the direct result
of the Collateral Agent’s gross negligence or willful misconduct (as determined by a court of competent jurisdiction in a final and non-appealable decision); 

  
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 (ii) all other requirements as to the time, place and terms of sale or other
requirements with respect to the enforcement of the Collateral Agent’s rights hereunder; and 
 (iii) all rights of
redemption, appraisement, valuation, stay, extension or moratorium now or hereafter in force under any applicable law in order to prevent or delay the enforcement of this Agreement or the absolute sale of the Collateral or any portion thereof, and
each Grantor, for itself and all who may claim under it, insofar as it or they now or hereafter lawfully may, hereby waives the benefit of all such laws. 

Any sale of, or the grant of options to purchase, or any other realization upon, any Collateral shall operate to divest all right, title, interest, claim and
demand, either at law or in equity, of the relevant Grantor therein and thereto, and shall be a perpetual bar both at law and in equity against such Grantor and against any and all Persons claiming or attempting to claim the Collateral so sold,
optioned or realized upon, or any part thereof, from, through and under such Grantor. 
 5.4. Application of Proceeds.
(a) Subject to any Applicable Intercreditor Agreement, all moneys collected by the Collateral Agent (or, to the extent the Pledge Agreement or any other Collateral Document requires proceeds of collateral under such other Collateral Document to
be applied in accordance with the provisions of this Agreement, the Pledgee, under, and as defined in, the Pledge Agreement or collateral agent under such other Collateral Document) upon any sale or other disposition of the Collateral (or the
collateral under the relevant Collateral Document), in connection with the Collateral Agent’s exercise of remedies following the occurrence and during the continuance of an Event of Default, together with all other moneys received by the
Collateral Agent hereunder or under any other Collateral Document, shall be applied as described in the Credit Agreement. 

5.5. Remedies Cumulative. Each and every right, power and remedy hereby specifically given to the Collateral Agent shall
be in addition to every other right, power and remedy specifically given to the Collateral Agent under this Agreement, the other Loan Documents or now or hereafter existing at law, in equity or by statute and each and every right, power and remedy
whether specifically herein given or otherwise existing may be exercised from time to time or simultaneously and as often and in such order as may be deemed expedient by the Collateral Agent. All such rights, powers and remedies shall be cumulative
and the exercise or the beginning of the exercise of one shall not be deemed a waiver of the right to exercise any other or others. No delay or omission of the Collateral Agent in the exercise of any such right, power or remedy and no renewal or
extension of any of the Obligations shall impair any such right, power or remedy or shall be construed to be a waiver of any Default or Event of Default or an acquiescence thereof. No notice to or demand on any Grantor in any case shall entitle it
to any other or further notice or demand in similar or other circumstances or constitute a waiver of any of the rights of the Collateral Agent to any other or further action in any circumstances without notice or demand. In the event that the
Collateral Agent shall bring any suit to enforce any of its rights hereunder and shall be entitled to judgment, then in such suit the Collateral Agent may recover reasonable expenses, including reasonable legal fees, and the amounts thereof shall be
included in such judgment. 

  
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 5.6. Discontinuance of Proceedings. In case the Collateral Agent
shall have instituted any proceeding to enforce any right, power or remedy under this Agreement by foreclosure, sale, entry or otherwise, and such proceeding shall have been discontinued or abandoned for any reason or shall have been determined
adversely to the Collateral Agent, then and in every such case the relevant Grantor, the Collateral Agent and each holder of any of the Obligations shall be restored to their former positions and rights hereunder with respect to the Collateral
subject to the security interest created under this Agreement, and all rights, remedies and powers of the Collateral Agent shall continue as if no such proceeding had been instituted. 

ARTICLE VI 
 INDEMNITY 

6.1. Indemnity. (a) The parties hereto agree that the terms of Section 10.04 of the Credit Agreement are
incorporated herein by reference, mutatis mutandis. If and to the extent that the obligations of any Grantor under this Section 6.1 are unenforceable for any reason, such Grantor hereby agrees to make the maximum contribution to the
payment and satisfaction of such obligations which is permissible under applicable law. 
 6.2. Indemnity Obligations
Secured by Collateral; Survival. Any amounts paid by any Indemnitee as to which such Indemnitee has the right to reimbursement hereunder or under the other Loan Documents shall constitute Obligations secured by the Collateral. The indemnity
obligations of each Grantor contained in this Article VI shall continue in full force and effect notwithstanding the full payment of all of its other Obligations and notwithstanding the full payment of all the Notes issued, and Loans made, under the
Credit Agreement and the payment of all other Obligations and notwithstanding the discharge thereof and the occurrence of the Termination Date. 

ARTICLE VII 
 DEFINITIONS 

The following terms shall have the meanings herein specified. Such definitions shall be equally applicable to the singular and plural forms of
the terms defined. 
 “Account” shall mean any “account” as such term is defined in the PPSA, and in any event
shall include but shall not be limited to, all rights to payment of any monetary obligation, whether or not earned by performance, (i) for property that has been or is to be sold, leased, licensed, assigned or otherwise disposed of,
(ii) for services rendered or to be rendered, (iii) for a policy of insurance issued or to be issued, (iv) for a secondary obligation incurred or to be incurred, (v) for energy provided or to be provided, (vi) for the use or
hire of a vessel under a charter or other contract, (vii) arising out of the use of a credit or charge card or information contained on or for use with the card, or (viii) as winnings in a lottery or other game of chance operated or
sponsored by a Province, Territory, governmental unit of a Province or Territory, or person licensed or authorized to operate the game by a Province, Territory, or governmental unit of a Province or Territory. 

  
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 “Account Debtor” shall mean any person who is or who may become obligated
to any Grantor under, with respect to or on account of an Account, Chattel Paper, Intangibles, Instrument or Investment Property. 

“Administrative Agent” shall have the meaning provided in the recitals of this Agreement. 

“Agreement” shall mean this Canadian Security Agreement, as the same may be amended, modified, restated and/or supplemented
from time to time in accordance with its terms. 
 “Applicable Intercreditor Agreement” shall mean the Intercreditor
Agreement, Other Intercreditor Agreement or Secured Other Letters of Credit Intercreditor Agreement, as applicable, in each case to the extent a Grantor is a party thereto. 

“Borrower” shall have the meaning provided in the recitals of this Agreement. 

“Canadian Borrower” shall have the meaning provided in the recitals of this Agreement. 

“Canadian Registered Organization” shall mean an entity organized under the federal laws of Canada or of a Province or
Territory thereof; 
 “Cash Collateral Account” shall mean a non-interest bearing
cash collateral account maintained with, and in the sole dominion and control of, the Collateral Agent for the benefit of the Secured Parties. 

“Chattel Paper” shall mean “chattel paper” as such term is defined in the PPSA. Without limiting the foregoing, the
term “Chattel Paper” shall in any event include all tangible Chattel Paper and all electronic Chattel Paper. 

“CIPO” shall mean, collectively, the Canadian Intellectual Property Office, United States Patent and Trademark Office and the
United States Copyright Office, as applicable. 
 “Collateral” shall have the meaning provided in Section 1.1(a) of
this Agreement. 
 “Collateral Agent” shall have the meaning provided in the first paragraph of this Agreement. 

“Collateral Documents” shall have the meaning provided in the Credit Agreement. 

“Company” shall have the meaning provided in the recitals of this Agreement. 

  
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 “Contract Rights” shall mean all rights of any Grantor under each Contract,
including, without limitation, (i) any and all rights to receive and demand payments under any or all Contracts, (ii) any and all rights to receive and compel performance under any or all Contracts and (iii) any and all other rights,
interests and claims now existing or in the future arising in connection with any or all Contracts. 
 “Contracts” shall
mean all contracts between any Grantor and one or more additional parties (including, without limitation, any Swap Contracts, licensing agreements and any partnership agreements, joint venture agreements and limited liability company agreements).

 “Copyrights” shall mean all: (a) copyrights (whether statutory or common law, whether registered or unregistered
and whether published or unpublished) and all copyright registrations and applications therefor, including, without limitation, the copyright registrations and applications in the CIPO listed in Annex G; (b) rights and privileges arising under
applicable law with respect to such copyrights; and (c) renewals and extensions thereof and amendments thereto. 
 “Copyright
Security Agreement” shall mean a copyright security agreement, in the form attached hereto as Exhibit B, executed and delivered by a Grantor in favour of the Collateral Agent for the benefit of the Secured Parties. 

“Credit Agreement” shall have the meaning provided in the recitals of this Agreement. 

“Deposit Accounts” shall mean all demand, time, saving, chequing or deposit accounts, collection accounts, lockboxes or other
accounts having a depository function maintained with any bank, financial or other deposit-taking institution. 

“Documents” shall mean “documents of title” as such term is defined in the PPSA. 

“Domain Names” shall mean all Internet domain names and associated URL addresses in or to which any Grantor now or hereafter
has any right, title or interest. 
 “Equipment” shall mean any “equipment” as such term is defined in the PPSA,
and in any event, shall include, but shall not be limited to, all machinery, equipment, furnishings, fixtures and vehicles now or hereafter owned by any Grantor and any and all additions, substitutions and replacements of any of the foregoing and
all accessions thereto, wherever located, together with all attachments, components, parts, equipment and accessories installed thereon or affixed thereto. 

“Event of Default” shall mean any Event of Default under, and as defined in, the Credit Agreement. 

“Excluded Assets” shall have the meaning provided in Section 1.1(b) of this Agreement. 

  
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 “Financial Assets” shall mean all present and future “financial
assets” as such term is defined in the STA. 
 “Futures Account” shall mean all “futures accounts” as such
term is defined in the PPSA. 
 “Goods” shall mean “goods” as such term is defined in the PPSA. 

“Grantor” shall have the meaning provided in the first paragraph of this Agreement. 

“Instrument” shall mean “instrument” as such term is defined in the PPSA. 

“Intangibles” shall mean “intangibles” as such term is defined in the PPSA. 

“Intellectual Property” shall mean (a) all intellectual and similar property of any Grantor of every kind and nature now
owned or hereafter acquired by any Grantor, including inventions, designs, Patents, Copyrights, Licenses, Trademarks, Software, Trade Secrets, confidential or proprietary technical and business information,
know-how, show-how or other data or information, software and databases and all embodiments or fixations thereof and related documentation, registrations and franchises,
and all additions, improvements and accessions to, and books and records describing or used in connection with, any of the foregoing; (b) rights corresponding to any of the foregoing throughout the world, including as provided by international
treaties or conventions, and all other rights of any kind whatsoever accruing thereunder or pertaining thereto; (c) income, royalties, damages, claims, and payments now or hereafter due or payable under and with respect to any of the foregoing,
including damages and payments for past and future infringements, misappropriations, or other violations thereof; and (d) rights to sue for past, present, and future infringements, misappropriations, or other violations of any of the foregoing,
including the right to settle suits involving claims and demands for royalties owing. 
 “Intellectual Property Security
Agreement” shall mean a Copyright Security Agreement, a Patent Security Agreement or a Trademark Security Agreement. 

“Inventory” shall mean merchandise, inventory and goods, and all additions, substitutions and replacements thereof and all
accessions thereto, wherever located, together with all goods, supplies, incidentals, packaging materials, labels, materials and any other items used or usable in manufacturing, processing, packaging or shipping same, in all stages of production
from raw materials through work in process to finished goods, and all products and proceeds of whatever sort and wherever located any portion thereof which may be returned, rejected, reclaimed or repossessed by the Collateral Agent from any
Grantor’s customers, and shall specifically include all “inventory” as such term is defined in the PPSA. 

“Investment Property” shall mean “investment property” as such term is defined in the PPSA. 

“Lenders” shall have the meaning provided in the recitals of this Agreement. 

  
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“Letter-of-Credit Rights” shall mean all
rights to payment or performance under a letter of credit, whether or not the beneficiary has demanded or is at the relevant time entitled to demand payment or performance. 

“Licenses” shall mean any and all licenses, agreements, consents, orders, franchises and similar arrangements in respect of
the licensing, development, use or disclosure of any Intellectual Property. 
 “Location” of any Grantor, shall mean the
location of such Grantor’s chief executive office or its registered office; 
 “Money” shall mean all present and
future “money” as such term is defined in the PPSA. 
 “Obligations” shall mean “Canadian Obligations”
as such term is defined in the Credit Agreement. 
 “Patents” shall mean all (a) industrial designs, letters patent,
certificates of inventions, all registrations and recordings thereof, and all applications for letters patent and industrial design applications, including registrations, recordings and pending applications in the CIPO listed in Annex G, and
(b) reissues, continuations, divisions, continuations-in-part, renewals or extensions thereof, and the inventions disclosed or claimed therein, including the right
to make, use and/or sell the inventions disclosed or claimed therein and all improvements thereto. 
 “Patent Security
Agreement” shall mean a patent security agreement, in the attached hereto as Exhibit C, executed and delivered by a Grantor in favour of the Collateral Agent for the benefit of the Secured Parties. 

“Payment Intangible” shall mean an Intangible under which the Account Debtor’s principal obligation is a monetary
obligation. 
 “Permits” shall mean, to the extent permitted to be assigned by the terms thereof or by applicable law, all
licenses, permits, consent, approval, rights, orders, variances, franchises or authorizations of or from any Governmental Authority or agency. 

“Pledge Agreement Collateral” shall mean all “Collateral” as defined in the Canadian Pledge Agreement. 

“Pledge Agreement” shall mean the Canadian Pledge Agreement dated of even date herewith by the Company, each other Pledgor
from time to time party thereto and the Collateral Agent, as pledgee. 
 “PPSA” shall mean the Personal Property
Security Act (Ontario), as such legislation may be amended, renamed or replaced from time to time, and includes all regulations from time to time made under such legislation and related Minister’s Order. 

  
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 “Proceeds” shall mean all “proceeds” as such term is defined in
the PPSA and, in any event, shall also include, but not be limited to, (i) any and all proceeds of any insurance, indemnity, warranty or guaranty payable to the Collateral Agent or any Grantor from time to time with respect to any of the
Collateral, (ii) any and all payments (in any form whatsoever) made or due and payable to any Grantor from time to time in connection with any requisition, confiscation, condemnation, seizure or forfeiture of all or any part of the Collateral
by any Governmental Authority (or any person acting under color of Governmental Authority) and (iii) any and all other amounts from time to time paid or payable under or in connection with any of the Collateral. 

“Promissory Note” shall mean an Instrument that evidences a promise to pay a monetary obligation, does not evidence an order
to pay, and does not contain an acknowledgment by a bank that the bank has received for deposit a sum of money or funds. 

“Receiver” has the meaning set forth in Section 5.1 (ix). 

“Recordable Intellectual Property” shall mean (i) any Patent issued by or applied for issuance with the CIPO,
(ii) any Trademark registered or applied for registration with the CIPO, (iii) any Copyright registered or applied for registration with the CIPO and (iv) any material License granting to any Grantor any exclusive right to use, copy,
reproduce, distribute, prepare derivative works, display or publish any records or other materials pertaining to a Copyright registered with the CIPO. 

“Securities Accounts” shall mean all present and future “securities accounts” as such term is defined in the STA,
including all monies, “uncertificated securities,” and “securities entitlements” (each as defined in the STA) contained therein. 

“Security” means all present and future “securities” as such term is defined in the STA. 

“Security Agreement Supplement” shall mean a security agreement supplement, in the form attached hereto as Exhibit A,
signed and delivered to the Collateral Agent for the purpose of adding a Subsidiary as a party hereto pursuant to Section 8.12 and/or adding additional property to the Collateral. 

“Security Entitlements” shall mean all present and future “security entitlements” as such term is defined in the
STA 
 “Software” shall mean all computer software, programs and databases (including, without limitation, source code,
object code and all related applications and data files), firmware and documentation and materials relating thereto, together with any and all maintenance rights, service rights, programming rights, hosting rights, test rights, improvement rights,
renewal rights and indemnification rights and any substitutions, replacements, improvements, error corrections, updates and new versions of any of the foregoing. 

“STA” shall mean the Securities Transfer Act, 2006 (Ontario) or, to the extent applicable, similar legislation of any
other jurisdiction, as amended from time to time. 

  
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 “Supporting Obligations” shall mean all Letter of Credit Rights or
secondary obligations that support the payment or performance of an Account, Chattel Paper, Document, Intangible, Instrument, or Investment Property. 

“Termination Date” shall have the meaning provided in Section 8.8(a) of this Agreement. 

“Trade Secrets” shall mean any confidential and proprietary information, including inventions, formulae, algorithms,
production procedures, know-how, methods, techniques, marketing, plans, analyses, proposals, customer lists, supplier lists, specifications, models, personal information, data collections, source code and
object code of a Grantor worldwide whether written or not. 
 “Trademarks” shall mean all: (a) trademarks, service
marks, certification marks, domain names and associated URLs, trade names, corporate names, company names, business names, fictitious business names, trade styles, trade dress, logos, slogans, other source or business identifiers, designs and
general intangibles of like nature, all registrations and recordings thereof, and all registrations and applications filed in connection therewith, including registrations and registration applications in the CIPO that are listed in Annex G,
(b) all extensions or renewals of any of the foregoing, (c) goodwill associated therewith or symbolized thereby, (d) other assets, rights and interests that uniquely reflect or embody such goodwill, and (e) rights and privileges
arising under applicable law with respect to the use of any of the foregoing. 
 “Trademark Security Agreement” shall mean
a trademark security agreement, in the form attached hereto as Exhibit D, executed and delivered by a Grantor in favour of the Collateral Agent for the benefit of the Secured Parties. 

“U.S. Borrower” shall have the meaning provided in the recitals of this Agreement. 

“Vehicles” shall mean all cars, trucks and other vehicles covered by a certificate of title issued by any Governmental
Authority. 
 ARTICLE VIII 

MISCELLANEOUS 

8.1. Notices. Except as otherwise specified herein, all notices, requests, demands or other communications to or upon
the respective parties hereto shall be in writing and shall be sent or delivered by mail, telecopy or courier service and all such notices and communications shall, when mailed, telecopied or sent by courier, be effective when deposited in the
mails, delivered to the overnight courier, or sent by telecopier, except that notices and communications to the Collateral Agent or any Grantor shall not be effective until received by the Collateral Agent or such Grantor, as the case may be. All
notices and other communications shall be in writing and addressed as follows: 
 (a) if to any Grantor, c/o: 

Ciena Corporation 
 7035 Ridge
Road 
 Hanover, Maryland 21076 

Attention: Treasurer’s Office 

Facsimile: 
 with a copy to: 

Ciena Corporation 
 7035 Ridge
Road 
 Hanover, Maryland 21076 

Attention: General Counsel’s Office 

Facsimile: 
 (b) if to the
Collateral Agent, at: 
 Bank of America, N.A. 

GA7-293-08-01 
 300 Galleria
Parkway, Suite 800 
 Atlanta, GA 30339 

Attention: 
 Telephone: 

Telecopier: 
 Electronic Mail:

  
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 or at such other address or addressed to such other individual as shall have been furnished in writing by
any Person described above to the party required to give notice hereunder. 
 8.2. Waiver; Amendment. Except as
provided in Sections 8.8, 8.12 and 8.15 hereof and Section 10.01 of the Credit Agreement, none of the terms and conditions of this Agreement or any other Collateral Document may be changed, waived, modified or varied in any manner whatsoever
unless in writing duly signed by each Grantor directly affected thereby (it being understood that the addition or release of any Grantor hereunder or under another Collateral Document shall not constitute a change, waiver, discharge or termination
affecting any Grantor other than the Grantor so added or released) and the Collateral Agent (with the written consent of the Required Lenders). 

8.3. Obligations Absolute. The obligations of each Grantor hereunder shall remain in full force and effect without
regard to, and shall not be impaired by, (a) any bankruptcy, insolvency, reorganization, arrangement, readjustment, composition, liquidation or the like of such Grantor; (b) any exercise or
non-exercise, or any waiver of, any right, remedy, power or privilege under or in respect of this Agreement or any other Secured Debt Agreement; or (c) any amendment to or modification of any other
Secured Debt Agreement or any security for any of its Obligations (in each case), whether or not such Grantor shall have notice or knowledge of any of the foregoing. 

8.4. Successors and Assigns. This Agreement shall create a continuing security interest in the Collateral and shall
(i) remain in full force and effect, subject to release and/or termination as set forth in Section 8.8 hereof, (ii) be binding upon each Grantor, its successors and assigns, provided however, that except as otherwise
permitted by the Credit Agreement, no Grantor shall assign any of its rights or obligations hereunder without the prior written consent of the Collateral Agent (with the consent of the Required Lenders), and (iii) inure, together with the
rights and remedies of the Collateral Agent hereunder, to the benefit of the Collateral Agent, the other Secured Parties and their respective successors, transferees and assigns. All agreements, statements, representations and warranties made by
each Grantor herein or in any certificate or other instrument delivered by such Grantor or on its behalf under this Agreement shall be considered to have been relied upon by the Secured Parties and shall survive the execution and delivery of this
Agreement and the other Loan Documents regardless of any investigation made by the Secured Parties or on their behalf. 

8.5. Headings Descriptive. The headings of the several sections of this Agreement are inserted for convenience only and
shall not in any way affect the meaning or construction of any provision of this Agreement. 
 8.6. GOVERNING LAW;
SUBMISSION TO JURISDICTION; VENUE; WAIVER OF JURY TRIAL. (a) THIS AGREEMENT AND ANY CLAIMS, CONTROVERSY, DISPUTE OR CAUSE OF ACTION (WHETHER IN CONTRACT OR TORT OR OTHERWISE) BASED UPON, ARISING OUT OF OR RELATING TO THIS AGREEMENT AND THE
TRANSACTIONS CONTEMPLATED HEREBY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE PROVINCE OF ONTARIO AND THE FEDERAL LAWS OF CANADA APPLICABLE THEREIN. 

  
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 (b) EACH GRANTOR IRREVOCABLY AND UNCONDITIONALLY AGREES THAT IT WILL NOT COMMENCE ANY
ACTION, LITIGATION OR PROCEEDING OF ANY KIND OR DESCRIPTION, WHETHER IN LAW OR EQUITY, WHETHER IN CONTRACT OR IN TORT OR OTHERWISE, AGAINST THE COLLATERAL AGENT, ANY SECURED PARTY OR ANY RELATED PARTY THEREOF IN ANY WAY RELATING TO THIS AGREEMENT,
ANY OTHER COLLATERAL DOCUMENT OR THE TRANSACTIONS RELATING HERETO OR THERETO, IN ANY FORUM OTHER THAN THE COURTS OF THE PROVINCE OF ONTARIO SITTING IN TORONTO, AND ANY APPELLATE COURT THEREFROM, AND EACH OF THE PARTIES HERETO IRREVOCABLY AND
UNCONDITIONALLY SUBMITS TO THE JURISDICTION OF SUCH COURTS AND AGREES THAT ALL CLAIMS IN RESPECT OF ANY SUCH ACTION, LITIGATION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH ONTARIO COURT OR, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN
SUCH CANADIAN COURT. EACH OF THE PARTIES HERETO AGREES THAT A FINAL JUDGMENT IN ANY SUCH ACTION, LITIGATION 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.
NOTHING IN THIS AGREEMENT OR ANY OTHER COLLATERAL DOCUMENT SHALL AFFECT ANY RIGHT THAT THE COLLATERAL AGENT OR ANY SECURED PARTY MAY OTHERWISE HAVE TO BRING ANY ACTION OR PROCEEDING RELATING TO THIS AGREEMENT OR ANY OTHER COLLATERAL DOCUMENT AGAINST
ANY GRANTOR OR ITS PROPERTIES IN THE COURTS OF ANY JURISDICTION. 
 (c) EACH GRANTOR IRREVOCABLY AND UNCONDITIONALLY WAIVES, TO THE FULLEST
EXTENT PERMITTED BY APPLICABLE LAW, ANY OBJECTION THAT IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF VENUE OF ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OTHER COLLATERAL DOCUMENT IN ANY COURT REFERRED TO IN
PARAGRAPH (B) OF THIS SECTION. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, THE DEFENSE OF AN INCONVENIENT FORUM TO THE MAINTENANCE OF SUCH ACTION OR PROCEEDING IN ANY SUCH COURT. 

(d) EACH PARTY HERETO IRREVOCABLY CONSENTS TO SERVICE OF PROCESS IN THE MANNER PROVIDED FOR NOTICES IN SECTION 8.1. NOTHING IN THIS AGREEMENT
WILL AFFECT THE RIGHT OF ANY PARTY HERETO TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY APPLICABLE LAW. 
 (e) EACH PARTY HERETO HEREBY
IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OTHER COLLATERAL DOCUMENT OR THE
TRANSACTIONS CONTEMPLATED 

  
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HEREBY OR THEREBY (WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PERSON HAS REPRESENTED,
EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PERSON WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT AND THE OTHER
LOAN DOCUMENTS BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION. 
 8.7. Grantors’
Duties. It is expressly agreed, anything herein contained to the contrary notwithstanding, that each Grantor shall remain liable to perform all of the obligations, if any, assumed by it with respect to the Collateral and the Collateral Agent
shall not have any obligations or liabilities with respect to any Collateral by reason of or arising out of this Agreement, nor shall the Collateral Agent be required or obligated in any manner to perform or fulfill any of the obligations of any
Grantor under or with respect to any Collateral. 
 8.8. Termination; Release. (a) On the Termination Date, this
Agreement shall terminate (provided that all indemnities set forth herein including, without limitation in Section 6.1 hereof, shall survive such termination) and the Collateral Agent, at the request and expense of the respective
Grantor, will promptly execute and deliver to such Grantor a proper instrument or instruments (including PPSA termination statements) acknowledging the satisfaction and termination of this Agreement, and will duly assign, transfer and deliver to
such Grantor (without recourse and without any representation or warranty) such of the Collateral as may be in the possession of the Collateral Agent and as has not theretofore been sold or otherwise applied or released pursuant to this Agreement.
As used in this Agreement, “Termination Date” shall mean the date on which the Payment in Full of the Obligations has occurred. 

(b) In the event that any part of the Collateral is sold or otherwise disposed of (to a Person other than a Loan Party) in connection with a
sale or disposition permitted by Section 7.05 of the Credit Agreement or is otherwise released pursuant to the Credit Agreement, and the proceeds of such sale or disposition (or from such release) are applied in accordance with the terms of the
Credit Agreement to the extent required to be so applied, the Collateral Agent, at the request and expense of such Grantor, will duly release from the security interest created hereby (and will promptly execute and deliver such documentation,
including termination or partial release statements, including subordination agreements and the like in connection therewith to evidence the release of such item of Collateral or to subordinate its interest in such item of Collateral) and assign,
transfer and deliver to such Grantor (without recourse and without any representation or warranty) such of the Collateral as is then being (or has been) so sold or otherwise disposed of, or released, and as may be in the possession of the Collateral
Agent and has not theretofore been released pursuant to this Agreement. In the case of any sale or disposition of any Collateral permitted under Section 7.05 of the Credit Agreement (unless sold to another Loan Party), the security interest
created hereby on such Collateral shall be automatically released without the need for further action by any Person. Furthermore, upon the release of any Grantor from the Canadian Guarantee in accordance with the provisions thereof or

  
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any Grantor in accordance with Section 9.10(b) of the Credit Agreement, such Grantor (and the Collateral at such time assigned by the respective Grantor pursuant hereto) shall be
automatically released from this Agreement, and the Collateral Agent, at the request and expense of such Grantor being released, will promptly execute and deliver such documentation, including termination or partial release statements and the like
in connection therewith and assign, transfer and deliver to such Grantor (without recourse and without any representation or warranty) the Collateral of such Grantor being released. 

(c) At any time that a Grantor desires that the Collateral Agent take any action to acknowledge or give effect to any release of Collateral
pursuant to the foregoing Section 8.8(a) or (b), such Grantor shall deliver to the Collateral Agent a certificate signed by a Responsible Officer of such Grantor stating that the release of the respective Collateral is permitted pursuant to
such Section 8.8(a) or (b). At any time that the Company or the respective Grantor desires that a Subsidiary of the Company which has been released from the Canadian Guarantee or its obligations in accordance with Section 9.10(b) of the
Credit Agreement, as applicable, be released hereunder as provided in the penultimate sentence of Section 8.8(b) hereof, it shall deliver to the Collateral Agent a certificate signed by a Responsible Officer of the Company and the respective
Grantor stating that the release of the respective Grantor (and its Collateral) is permitted pursuant to such Section 8.8(b). 
 (d) The
Collateral Agent shall have no liability whatsoever to any other Secured Party as the result of any release of Collateral by it in accordance with, or which the Collateral Agent in good faith believes to be in accordance with, this Section 8.8.

 8.9. Counterparts. This Agreement may be executed in any number of counterparts and by the different parties
hereto on separate counterparts, each of which when so executed and delivered shall be an original, but all of which shall together constitute one and the same instrument. A set of counterparts executed by all the parties hereto shall be lodged with
the Company and the Collateral Agent. 
 8.10. Severability. Any provision of this Agreement which is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction. 
 8.11. The
Collateral Agent and the other Secured Parties. The Collateral Agent will hold in accordance with this Agreement all items of the Collateral at any time received under this Agreement. It is expressly understood and agreed that the obligations of
the Collateral Agent as holder of the Collateral and interests therein and with respect to the disposition thereof, and otherwise under this Agreement, are only those expressly set forth in this Agreement and in Section 9 of the Credit
Agreement. The Collateral Agent shall act hereunder on the terms and conditions set forth herein and in Section 9 of the Credit Agreement. 

  
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 8.12. Additional Grantors. It is understood and agreed that any
Canadian Subsidiary of the Company that desires to become a Grantor hereunder, or is required to execute a counterpart of this Agreement after the date hereof pursuant to the requirements of the Credit Agreement or any other Loan Document, shall
become a Grantor hereunder by (x) executing a counterpart hereof, a Joinder Agreement or by executing a Security Agreement Supplement and delivering the same to the Collateral Agent, in each case as may be requested by the Collateral Agent
(provided such Security Agreement Supplement shall not require the consent of any Grantor), (y) delivering supplements to Annexes A through G, inclusive, hereto as are necessary to cause such Annexes to be complete and accurate with respect to such
additional Grantor on such date and (z) taking all actions as specified in this Agreement as would have been taken by such Grantor had it been an original party to this Agreement, in each case with all documents required above to be delivered
to the Collateral Agent and with all documents and actions required above to be taken to the reasonable satisfaction of the Collateral Agent and upon such execution and delivery, such Canadian Subsidiary shall constitute a Grantor hereunder. 

8.13. [Reserved]. 

8.14. Intercreditor Agreement. To the extent a Grantor is party to any Applicable Intercreditor Agreement, this
Agreement and the other Loan Documents are subject to the terms and conditions set forth in any such Applicable Intercreditor Agreement in all respects and, in the event of any conflict between the terms of any Applicable Intercreditor Agreement and
this Agreement, the terms of such Applicable Intercreditor Agreement shall govern. Notwithstanding anything herein to the contrary, the Lien and security interest granted to the Collateral Agent pursuant to any Loan Document and the exercise of any
right or remedy in respect of the Collateral by the Collateral Agent (or any Secured Party) hereunder or under any other Loan Document are subject to the provisions of any Applicable Intercreditor Agreement and in the event of any conflict between
the terms of such Applicable Intercreditor Agreement, this Agreement and any other Loan Document, the terms of such Applicable Intercreditor Agreement shall govern and control with respect to the exercise of any such right or remedy. Without
limiting the generality of the foregoing, and notwithstanding anything herein to the contrary, no Loan Party shall be required hereunder or under any Loan Document to take any action with respect to the Collateral that is inconsistent with the
provisions of any Applicable Intercreditor Agreement. 
 8.15. Release of Grantors. If at any time all of the Equity
Interests of any Grantor (or, to the extent any Collateral Document requires releases thereunder to occur in accordance with the provisions of this Agreement, the pledgor, transferor, mortgagor or other corresponding party under such other
Collateral Document) owned by the Company and its Subsidiaries are sold (to a Person other than the Company or any of its Subsidiaries) in a transaction permitted pursuant to the Credit Agreement (and which does not violate the terms of any other
Loan Document then in effect), then, at the request and expense of the Company, the respective Grantor shall be immediately released as a Grantor pursuant to this Agreement without any further action hereunder (and upon the reasonable request of the
Company and at the expense of the Grantors, the Collateral Agent (or, to the extent any other Collateral Document requires releases thereunder to occur in accordance with the provisions of this Agreement, the pledgee, assignee, mortgagee or other
corresponding party under such other Collateral Document) shall execute and deliver such instruments of release 

  
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as are reasonably necessary to evidence the release of such Grantor and otherwise reasonably satisfactory to the Collateral Agent). At any time the Company desires that a Grantor be released from
this Agreement as provided in this Section 8.15, the Company shall deliver to the Collateral Agent a certificate signed by a Responsible Officer of the Company stating that (i) the transaction is permitted pursuant to the Credit Agreement
(and does not violate the terms of any other Loan Documents then in effect) and (ii) the release of the respective Grantor is permitted pursuant to this Section 8.15. 

8.16. Judgment Currency. If, for the purposes of enforcing judgment in any court or for any other purpose hereunder or
in connection herewith, it is necessary to convert a sum due hereunder in any currency into another currency, such conversion should be carried out to the extent and in the manner provided in the Credit Agreement. 

8.17. Amalgamations. If a Grantor amalgamates with any other corporation or corporations, it is the intention of the
parties that the security interest granted pursuant to this Agreement will (a) extend to all of the property, assets and interests that (i) any of the amalgamating corporations own, or (ii) the amalgamated corporation thereafter
acquires, and (b) secure the payment and performance of all debts, liabilities and obligations of any of the amalgamating corporations and the amalgamated corporation to the Collateral Agent or any Secured Party, however or wherever incurred
and whether as principal, guarantor or surety and whether incurred prior to, at the time of, or subsequent to, the amalgamation. The security interest granted pursuant to this Agreement will attach to the property, assets and interests of the
amalgamating corporations not previously subject to this Agreement at the time of amalgamation and to any property, assets or interests thereafter owned or acquired by the amalgamated corporation when such property, assets and interests become owned
or are acquired. Upon any such amalgamation, the defined term Grantor shall include each of the amalgamating corporations and the amalgamated corporation, the defined term Collateral shall include all of the property, assets and interests described
in (a) above, and the defined term Obligations shall include the obligations described in (b) above. 
 [Remainder of this
page intentionally left blank; signature page follows] 

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

			
	GRANTORS:
	CIENA CANADA, INC.
		
	By:	 	 /s/ Jiong Liu

		 	Name: Jiong Liu
		 	Title: Vice President and Treasurer

  
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	Accepted and Agreed to:
	
	 BANK OF AMERICA, N.A.,
 as
Collateral Agent

		
	By:	 	 /s/ John M. Olsen

	Name: John M. Olsen
	Title: Senior Vice President

  
 -33-

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