Document:

Form of Common Stock certificate of the Registrant

 Exhibit 4.1 
 FORM OF COMMON STOCK CERTIFICATE 

 

 

 NUMBER MC MASERY SHARES MASERGY COMMUNICATIONS, INC. INCORPORATED UNDER THE LAWS OF THE
STATE OF DELAWARE CUSIP 57475Q 10 8 COMMON STOCK SEE REVERSE FOR CERTAIN DEFINITIONS THIS CERTIFIES that is the owner of FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, PAR VALUE $.001 PER SHARE OF MASERGY COMMUNICATIONS, INC. transferable
only on the books of the Corporation by the holder hereof in person or by Attorney upon surrender of this Certificate properly endorsed. This Certificate is not valid until countersigned by the Transfer Agent and registered by the Registrar. IN
WITNESS WHEREOF, the said Corporation has caused this Certificate to be signed by the facsimile signatures of its duly authorized officers and its Corporate seal to be hereunto affixed. DATED: SECRETARY CHIEF EXECUTIVE OFFICER MASERGY
COMMUNICATIONS, INC. SEAL 2000 CORPORATE DELAWARE COUNTERSIGNED AND REGISTERED REGISTRAR AND TRANSFER COMPANY TRANSFER AGENT AND REGISTRAR BY AUTHORIZED SIGNATURE 

 

 

 The following abbreviations, when used in the inscription on the face of this certificate.
shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM—as tenants in common TEN ENT—as tenants by the entireties JT TEN as joint tenants with right of survivorship and not as tenants
in common UNIF GIFT MIN ACT- Custodian (Cust) (Minor) Under Uniform Gifts to Minors Act (State) Additional abbreviations may also be used though not in the above list. For Value Received, hereby sell, assign and transfer unto PLEASE INSERT SOCIAL
SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE ASSIGNEE)Shares of the Common Stock represented by the within Certificate, and do hereby irrevocably constitute and appoint
Attorney to transfer the said Shares on the books of the within named Corporation with full power of substitution in the premises. Dated:XX NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS WRITTEN UPON THE FACE OF THIS
CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER Signature(s) Guaranteed BY: THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND
CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C RULE 17Ad.15First Amended and Restated Comerica Loan and Security Agreement

 Exhibit 10.12 

 
  
 MASERGY COMMUNICATIONS, INC. 
 FIRST AMENDED AND RESTATED 

LOAN AND SECURITY AGREEMENT 
  

 

 This FIRST AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT is entered into as of January 24, 2011, by
and between Comerica Bank (“Bank”) and Masergy Communications, Inc. (“Borrower”). 
 RECITALS

 Borrower and Bank have entered into that certain Loan and Security Agreement dated as of March 10, 2005 (as heretofore amended or
modified, the “Existing Loan Agreement”). 
 Borrower and Bank desire to amend and restate the Existing Loan Agreement in its
entirety. This Agreement amends and restates the Existing Loan Agreement in its entirety and sets forth the terms on which Bank will advance credit to Borrower, and Borrower will repay the amounts owing to Bank. 

AGREEMENT 
 The parties
agree as follows: 
 1. DEFINITIONS AND CONSTRUCTION. 

1.1 Definitions. As used in this Agreement, all capitalized terms shall have the definitions set forth on Exhibit A. Any term used
in the Code and not defined herein shall have the meaning given to the term in the Code. 
 1.2 Accounting Terms. Any
accounting term not specifically defined on Exhibit A shall be construed in accordance with GAAP and all calculations shall be made in accordance with GAAP. The term “financial statements” shall include the accompanying notes and
schedules. 
 2. LOAN AND TERMS OF PAYMENT. 
 2.1 Credit Extensions. 
 (a) Promise to Pay. Borrower promises to
pay to Bank, in lawful money of the United States of America, the aggregate unpaid principal amount of all Credit Extensions made by Bank to Borrower hereunder in accordance with the terms hereof, together with interest on the unpaid principal
amount of such Credit Extensions at rates in accordance with the terms hereof. 
 (b) Revolving Facility. 

(i) Amount. Subject to and upon the terms and conditions of this Agreement Borrower may request Revolving Advances in an aggregate
outstanding amount not to exceed the lesser of (A) the Committed Revolving Line or (B) the Contract Loan Value, less the aggregate face amount of Letters of Credit issued under the Letter of Credit Sublimit. Except as set forth in the
LIBOR/Daily Adjusting LIBOR Rate Addendum attached hereto as Exhibit F, amounts borrowed pursuant to this Section 2.1(b) may be repaid and reborrowed at any time without penalty or premium prior to the Revolving Maturity Date, at which
time all Advances under this Section 2.1(b) shall be immediately due and payable. 
 (ii) Whenever Borrower desires a
Revolving Advance, Borrower will notify Bank by facsimile transmission or telephone no later than 3:00 p.m. Pacific time, on the Business Day that the Revolving Advance is to be made. Each such notification shall be promptly confirmed by a
Payment/Advance Form in substantially the form of Exhibit C. Bank is authorized to make Revolving Advances under this Agreement, based upon instructions received from a Responsible Officer or a designee of a Responsible Officer. Bank will
credit the amount of Revolving Advances made under this Section 2.1(b) to Borrower’s deposit account. 
 (iii)
Letter of Credit Sublimit. Subject to the availability under the Committed Revolving Line, and in reliance on the representations and warranties of Borrower set forth herein, at any time and from time to time from the date hereof through the
Business Day immediately prior to the Revolving 

  
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Maturity Date, Bank shall issue for the account of Borrower such Letters of Credit as Borrower may request by delivering to Bank a duly executed letter of credit application on Bank’s
standard form; provided, however, that the outstanding and undrawn amounts under all such Letters of Credit (i) shall not at any time exceed the Letter of Credit Sublimit, and (ii) shall be deemed to constitute Advances for the purpose of
calculating availability under the Committed Revolving Line. Any drawn but unreimbursed amounts under any Letters of Credit shall be charged as Advances against the Committed Revolving Line. All Letters of Credit shall be in form and substance
acceptable to Bank in its sole discretion and shall be subject to the terms and conditions of Bank’s form application and letter of credit agreement. Borrower will pay any standard issuance and other fees that Bank notifies Borrower will be
charged for issuing and processing Letters of Credit. Unless Borrower shall have deposited with Bank cash collateral in an amount sufficient to cover all undrawn amounts under each such Letter of Credit and Bank shall have agreed in writing, no
Letter of Credit shall have an expiration date that is later than the Revolving Maturity Date. If Borrower has not secured to Bank’s satisfaction its obligations with respect to any Letters of Credit by the Revolving Maturity Date, then,
effective as of such date, the balance in any deposit accounts held by Bank and the certificates of deposit issued by Bank in Borrower’s name (and any interest paid thereon or proceeds thereof, including any amounts payable upon the maturity or
liquidation of such certificates), shall automatically secure such obligations to the extent of the then outstanding and undrawn Letters of Credit. Borrower authorizes Bank to hold such balances in pledge and to decline to honor any drafts thereon
or any requests by Borrower or any other Person to pay or otherwise transfer any part of such balances for so long as the Letters of Credit are outstanding. 
 (iv) Collateralization of Obligations Extending Beyond Maturity. Any Letters of Credit that may extend beyond the Revolving Maturity Date, then, effective as of the Revolving Maturity Date, the
balance in any deposit accounts held by Bank and the certificates of deposit or time deposit accounts issued by Bank in Borrower’s name (and any interest paid thereon or proceeds thereof, including any amounts payable upon the maturity or
liquidation of such certificates or accounts), shall automatically secure such obligations to the extent of the then continuing or outstanding and undrawn Letters of Credit; provided, however, that if there are insufficient balances in such accounts
to secure such obligations, Borrower shall immediately deposit such additional funds as are necessary to fully secure such obligations. Borrower authorizes Bank to hold such balances in pledge and to decline to honor any drafts thereon or any
requests by Borrower or any other Person to pay or otherwise transfer any part of such balances for so long as the Letters of Credit are outstanding or continue. 
 2.2 Overadvances. If the aggregate amount of the outstanding Revolving Advances exceeds the lesser of (a) the Contract Loan Value, or (b) the Committed Revolving Line at any time,
Borrower shall immediately pay to Bank, in cash, the amount of such excess. 
 2.3 Interest Rates and Payments. Interest
shall accrue on the Obligations and shall be payable as set forth in the Daily Adjusting LIBOR Addendum to Loan and Security Agreement attached hereto and made a part hereof. 
 2.4 Crediting Payments. Prior to the occurrence of an Event of Default, Bank shall credit a wire transfer of funds, check or other item of payment to such deposit account or Obligation as Borrower
specifies. After the occurrence of an Event of Default, the receipt by Bank of any wire transfer of funds, check, or other item of payment shall be immediately applied to conditionally reduce Obligations, but shall not be considered a payment on
account unless such payment is of immediately available federal funds or unless and until such check or other item of payment is honored when presented for payment. Notwithstanding anything to the contrary contained herein, any wire transfer or
payment received by Bank after 12:00 noon Pacific time shall be deemed to have been received by Bank as of the opening of business on the immediately following Business Day. Whenever any payment to Bank under the Loan Documents would otherwise be
due (except by reason of acceleration) on a date that is not a Business Day, such payment shall instead be due on the next Business Day, and additional fees or interest, as the case may be, shall accrue and be payable for the period of such
extension. 
 2.5 Fees. Borrower shall pay to Bank the following: 

(a) Facility Fee. A Facility Fee that is due and payable in three installments of $25,000 each. The first installment shall be due
and payable on the date of this Agreement, the second installment shall be due and payable on December 27, 2011, and the third installment shall be due and payable on December 27, 2012. 

  
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 (b) Bank Expenses. On the Closing Date, all Bank Expenses incurred through the
Closing Date, and, after the Closing Date, all Bank Expenses, as and when they become due. 
 (c) Unused Facility Fee.
An Unused Facility Fee equal to one quarter of one percent (0.25%) of the difference between the Committed Revolving Line and the average outstanding principal balance of the Obligations, including issued Letters of Credit under the Letter of Credit
Sublimit, which fee shall be payable within five (5) days of each calendar quarter and on the Revolving Maturity Date and such fee shall be nonrefundable. 
 2.6 Term. This Agreement shall become effective on the Closing Date and, subject to Section 13.7, shall continue in full force and effect for so long as any Obligations remain outstanding or
Bank has any obligation to make Credit Extensions under this Agreement. Notwithstanding the foregoing, Bank shall have the right to terminate its obligation to make Credit Extensions under this Agreement immediately and without notice upon the
occurrence and during the continuance of an Event of Default. 
 3. CONDITIONS OF LOANS. 

3.1 Conditions Precedent to Initial Credit Extension. The obligation of Bank to make the initial Credit Extension is subject to the
condition precedent that Bank shall have received, in form and substance satisfactory to Bank, the following: 
 (a) this
Agreement; 
 (b) an officer’s certificate of Borrower with respect to incumbency and resolutions authorizing the
execution and delivery of this Agreement; 
 (c) agreement to provide insurance; 

(d) payment of the fees and Bank Expenses then due specified in Section 2.5; and 

(e) such other documents or certificates, and completion of such other matters, as Bank may reasonably deem necessary or appropriate.

 3.2 Conditions Precedent to all Credit Extensions. The obligation of Bank to make each Credit Extension, including the
initial Credit Extension, is further subject to the following conditions: 
 (a) timely receipt by Bank of the Payment/Advance
Form as provided in Section 2.1; and 
 (b) the representations and warranties contained in Section 5 shall be true
and correct in all material respects on and as of the date of such Payment/Advance Form and on the effective date of each Credit Extension as though made at and as of each such date, and no Event of Default shall have occurred and be continuing, or
would exist after giving effect to such Credit Extension (provided, however, that those representations and warranties expressly referring to another date shall be true, correct and complete in all material respects as of such date). The making of
each Credit Extension shall be deemed to be a representation and warranty by Borrower on the date of such Credit Extension as to the accuracy of the facts referred to in this Section 3.2. 

4. CREATION OF SECURITY INTEREST. 
 4.1 Grant of Security Interest. Borrower grants and pledges to Bank a continuing security interest in the Collateral to secure prompt repayment of any and all Obligations and to secure prompt
performance by Borrower of each of its covenants and duties under the Loan Documents. Except as set forth in the Schedule, such security interest constitutes a valid, first priority security interest in the presently existing Collateral, and will
constitute a valid, first priority security interest in later-acquired Collateral. Borrower also hereby agrees not to sell, transfer, assign, mortgage, pledge, lease, grant a security interest in, or encumber any of its Intellectual Property, except
in connection with Permitted Liens and Permitted Transfers. Notwithstanding any termination, Bank’s Lien on the Collateral shall remain in effect for so long as any Obligations are outstanding. 

  
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 4.2 Perfection of Security Interest. Borrower authorizes Bank to file at any time
financing statements, continuation statements, and amendments thereto that describe the Collateral and to describe the Collateral as all assets of Borrower of the kind pledged hereunder and which contain any other information required by the Code
for the sufficiency of filing office acceptance of any financing statement, continuation statement, or amendment, including whether Borrower is an organization, the type of organization and any organizational identification number issued to
Borrower, if applicable. Borrower shall from time to time execute and deliver to Bank, at the request of Bank, all Negotiable Collateral and other documents that Bank may reasonably request, in form satisfactory to Bank, to perfect and continue
perfected Bank’s security interests in the Collateral and in order to fully consummate all of the transactions contemplated under the Loan Documents. Except as set forth in the Schedule, Borrower, or its Subsidiaries, shall have possession of
the Collateral, except where expressly otherwise provided in this Agreement or where Bank chooses to perfect its security interest by possession in addition to the filing of a financing statement. Where Collateral is in possession of a third party
bailee, Borrower shall take such steps as Bank reasonably requests for Bank to (i) obtain an acknowledgment, in form and substance satisfactory to Bank, of the bailee that the bailee holds such Collateral for the benefit of Bank,
(ii) obtain “control” of any Collateral consisting of investment property, deposit accounts, letter-of-credit rights or electronic chattel paper (as such items and the term “control” are defined in Revised Article 9 of the
Code) by causing the securities intermediary or depositary institution or issuing bank to execute a control agreement in form and substance satisfactory to Bank. Borrower will not create any chattel paper without placing a legend on the chattel
paper acceptable to Bank indicating that Bank has a security interest in the chattel paper. 
 4.3 Right to Inspect. Bank
(through any of its officers, employees, or agents) shall have the right, upon reasonable prior notice, from time to time during Borrower’s usual business hours but no more than twice a year (unless an Event of Default has occurred and is
continuing), to inspect Borrower’s Books and to make copies thereof and to check, test, and appraise the Collateral in order to verify Borrower’s financial condition or the amount, condition of, or any other matter relating to, the
Collateral. 
 4.4 Lock Box. Borrower shall notify all account debtors to make payments with respect to its Accounts
directly to a United States Post Office lockbox (the “Lockbox”). Any payments received by Borrower with respect to its Accounts by wire transfer shall be deposited directly in Borrower’s primary deposit account held with Bank. Bank
shall have unrestricted access to the Lockbox. So long as no Event of Default has occurred and is continuing, Bank shall transfer all funds received in the Lockbox in accordance with Borrower’s instructions. During the continuation of an Event
of Default, all funds received in the Lockbox shall be applied to reduce the Obligations, subject to the terms of Section 2.4. 
 5. REPRESENTATIONS AND WARRANTIES. 
 Borrower represents and warrants as
follows: 
 5.1 Due Organization and Qualification. Borrower and each Subsidiary is a corporation duly existing under the
laws of the Borrower State and qualified and licensed to do business in any state in which the conduct of its business or its ownership of property requires that it be so qualified, except where the failure to do so would not reasonably be expected
to cause a Material Adverse Effect. 
 5.2 Due Authorization; No Conflict. The execution, delivery, and performance of
the Loan Documents are within Borrower’s powers, have been duly authorized, and are not in conflict with nor constitute a breach of any provision contained in Borrower’s Certificate of Incorporation or Bylaws, nor will they constitute an
event of default under any material agreement by which Borrower is bound. Borrower is not in default under any agreement by which it is bound, except to the extent such default would not reasonably be expected to cause a Material Adverse Effect.

 5.3 Collateral. Borrower has rights in or the power to transfer the Collateral, and its title to the Collateral is
free and clear of Liens, adverse claims, and restrictions on transfer or pledge except for Permitted Liens. All Collateral is located solely in the Collateral States. All Inventory is in all material respects of good and

  
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merchantable quality, free from all material defects, except for Inventory for which adequate reserves have been made. Except as set forth in the Schedule, none of the Collateral, constituting
cash or investment property, is maintained or invested with a Person other than Bank or Bank’s affiliates. 
 5.4
Intellectual Property. Borrower is the sole owner of its Copyrights, Patents and Trademarks, except for licenses granted by Borrower to its customers in the ordinary course of business. To the best of Borrower’s knowledge, each of the
Patents is valid and enforceable, and no claim has been made to Borrower that any part of the Intellectual Property violates the rights of any third party except to the extent such claim would not reasonably be expected to cause a Material Adverse
Effect. The agreements pursuant to which Borrower is a licensee of intellectual property and that are material to Borrower’s generation of revenue are set forth in the Schedule. 

5.5 Name; Location of Chief Executive Office. Except as disclosed in the Schedule, Borrower has not done business under any name
other than that specified on the signature page hereof, and its exact legal name is as set forth in the first paragraph of this Agreement. The chief executive office of Borrower is located in the Chief Executive Office State at the address indicated
in Section 10 hereof. 
 5.6 Litigation. Except as set forth in the Schedule, there are no actions or proceedings
pending by or against Borrower or any Subsidiary before any court or administrative agency in which a likely adverse decision would reasonably be expected to have a Material Adverse Effect, or a material adverse effect on Borrower’s interest or
Bank’s security interest in the Collateral. 
 5.7 No Material Adverse Change in Financial Statements. All
consolidating and consolidated financial statements related to Borrower and any Subsidiary that are delivered by Borrower to Bank fairly present in all material respects Borrower’s consolidating and consolidated financial condition as of the
date thereof and Borrower’s consolidating and consolidated results of operations for the period then ended. There has not been a material adverse change in the consolidating or in the consolidated financial condition of Borrower since the date
of the most recent of such financial statements submitted to Bank. 
 5.8 Solvency, Payment of Debts. Borrower is able to
pay its debts (including trade debts) as they mature; the fair saleable value of Borrower’s assets (including goodwill minus disposition costs) exceeds the fair value of its liabilities; and Borrower is not left with unreasonably small capital
after the transactions contemplated by this Agreement. 
 5.9 Compliance with Laws and Regulations. Borrower and each
Subsidiary have met the minimum funding requirements of ERISA with respect to any employee benefit plans subject to ERISA. No event has occurred resulting from Borrower’s failure to comply with ERISA that is reasonably likely to result in
Borrower’s incurring any liability that could have a Material Adverse Effect. Borrower is not an “investment company” or a company “controlled” by an “investment company” within the meaning of the Investment
Company Act of 1940. Borrower is not engaged principally, or as one of the important activities, in the business of extending credit for the purpose of purchasing or carrying margin stock (within the meaning of Regulations T and U of the Board of
Governors of the Federal Reserve System). Borrower has complied in all material respects with all the provisions of the Federal Fair Labor Standards Act. Borrower is in compliance with all environmental laws, regulations and ordinances except where
the failure to comply is not reasonably likely to have a Material Adverse Effect. Borrower has not violated any statutes, laws, ordinances or rules applicable to it, violation of which could have a Material Adverse Effect. Borrower and each
Subsidiary have filed or caused to be filed all material tax returns required to be filed (or have filed timely extensions thereof), and have paid, or have made adequate provision for the payment of, all material taxes reflected therein except those
being contested in good faith with adequate reserves under GAAP or where the failure to file such returns or pay such taxes would not reasonably be expected to have a Material Adverse Effect. 

5.10 Subsidiaries. Borrower does not own any stock, partnership interest or other equity securities of any Person, except for
Permitted Investments. 
 5.11 Government Consents. Borrower and each Subsidiary have obtained all consents, approvals
and authorizations of, made all declarations or filings with, and given all notices to, all governmental authorities that are necessary for the continued operation of Borrower’s business as currently conducted, except where the failure to do so
would not reasonably be expected to cause a Material Adverse Effect. 

  
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 5.12 Inbound Licenses. Except as disclosed on the Schedule, Borrower is not a party
to, nor is bound by, any license or other agreement that prohibits or otherwise restricts Borrower from granting a security interest in Borrower’s interest in such license or agreement or any other property. 

5.13 Full Disclosure. No representation, warranty or other statement made by Borrower in any certificate or written statement
furnished to Bank taken together with all such certificates and written statements furnished to Bank contains any untrue statement of a material fact or omits to state a material fact necessary in order to make the statements contained in such
certificates or statements not misleading in light of the circumstances under which they were made, it being recognized by Bank that the projections and forecasts provided by Borrower in good faith and based upon reasonable assumptions are not to be
viewed as facts and that actual results during the period or periods covered by any such projections and forecasts may differ from the projected or forecasted results. 
 6. AFFIRMATIVE COVENANTS. 
 Borrower covenants that, until payment in full
of all outstanding Obligations, and for so long as Bank may have any commitment to make a Credit Extension hereunder, Borrower shall do all of the following: 
 6.1 Good Standing and Government Compliance. Borrower shall maintain its and each of its Subsidiaries’ corporate existence and good standing in the Borrower State, shall maintain qualification
and good standing in each jurisdiction in which the failure to so qualify reasonably would be expected to have a Material Adverse Effect, and shall furnish to Bank the organizational identification number issued to Borrower by the authorities of the
state in which Borrower is organized, if applicable. Borrower shall meet, and shall cause each Subsidiary to meet, the minimum funding requirements of ERISA with respect to any employee benefit plans subject to ERISA, except where the failure to
meet such requirements would not reasonably be expected to have a Material Adverse Effect. Borrower shall comply in all material respects with all applicable Environmental Laws, and maintain all material permits, licenses and approvals required
thereunder where the failure to do so could have a Material Adverse Effect. Borrower shall comply, and shall cause each Subsidiary to comply, with all statutes, laws, ordinances and government rules and regulations to which it is subject, and shall
maintain, and shall cause each of its Subsidiaries to maintain, in force all licenses, approvals and agreements, the loss of which or failure to comply with which would reasonably be expected to have a Material Adverse Effect, or a material adverse
effect on the Collateral or the priority of Bank’s Lien on the Collateral. 
 6.2 Financial Statements, Reports,
Certificates. Borrower shall deliver to Bank: 
 (a) as soon as available, but in any event within 45 days after the end of
each calendar quarter, a company prepared consolidated and consolidating balance sheet and income statement covering Borrower’s operations during such period, in a form reasonably acceptable to Bank and certified by a Responsible Officer;

 (b) within 120 days after the end of each fiscal year of Borrower, audited consolidated and consolidating financial
statements of Borrower prepared in accordance with GAAP, consistently applied, together with an opinion which is unqualified or otherwise consented to in writing by Bank on such financial statements of an independent certified public accounting firm
reasonably acceptable to Bank; 
 (c) if applicable, copies of all statements, reports and notices sent or made available
generally by Borrower to its security holders or to any holders of Subordinated Debt and all reports on Forms 10-K and 10-Q filed with the Securities and Exchange Commission; 
 (d) promptly upon receipt of notice thereof, a report of any legal actions pending or threatened against Borrower or any Subsidiary that would reasonably be expected to result in damages or costs to
Borrower or any Subsidiary of $500,000 or more; 

  
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 (e) such budgets, sales projections, operating plans or other financial information
generally prepared by Borrower in the ordinary course of business as Bank may reasonably request from time to time; 
 (f)
within 45 days of the last day of each fiscal quarter, a report signed by Borrower, in form reasonably acceptable to Bank, listing any applications or registrations that Borrower has made or filed in respect of any Patents, Copyrights or Trademarks
and the status of any outstanding applications or registrations; 
 (g) within 45 days after the last day of each calendar
quarter, a Borrowing Base Certificate signed by a Responsible Officer in substantially the form of Exhibit D hereto, together with aged listings by invoice date of accounts receivable and accounts payable; 

(h) within 45 days after the last day of each calendar quarter, a Compliance Certificate signed by a Responsible Officer in
substantially the form of Exhibit E hereto; 
 (i) on or before July 31 of each year, financial projections
(including balance sheet and income statement) of Borrower for the immediately following fiscal year; 
 (j) within 45 days
after the last day of each calendar quarter on which any Advances were outstanding or as reasonably requested by Bank, a list of all contracts, including customer name, original terms of contract, remaining term, required monthly payment and payment
status; 
 (k) within 45 days after the last day of each calendar quarter on which any Advances were outstanding or as
reasonably requested by Bank, a backlog report reflecting contracts for which Borrower has not yet commenced service; and 

(l) as soon as possible and in any event within 3 calendar days after becoming aware of the occurrence or existence of an Event of
Default hereunder, a written statement of a Responsible Officer setting forth details of the Event of Default, and the action which Borrower has taken or proposes to take with respect thereto. 

Bank shall have a right from time to time hereafter to audit Borrower’s Accounts and appraise Collateral at Borrower’s expense, provided that
such audits will be conducted no more often than every 6 months unless an Event of Default has occurred and is continuing. 

6.3 Inventory; Returns. Borrower shall keep all Inventory in good and merchantable condition, free from all material defects
except for Inventory for which adequate reserves have been made. Returns and allowances, if any, as between Borrower and its account debtors shall be on the same basis and in accordance with the usual customary practices of Borrower, as they exist
on the Closing Date. Borrower shall promptly notify Bank of all returns and recoveries and of all disputes and claims involving more than $500,000. 
 6.4 Taxes. Borrower shall make, and cause each Subsidiary to make, due and timely payment or deposit of all material federal, state, and local taxes, assessments, or contributions required of it by
law, including, but not limited to, those laws concerning income taxes, F.I.C.A., F.U.T.A. and state disability, and will execute and deliver to Bank, on demand, appropriate certificates attesting to the payment or deposit thereof; provided that
Borrower or a Subsidiary need not make any payment if the amount or validity of such payment is contested in good faith by appropriate proceedings and is reserved against (to the extent required by GAAP) by Borrower. 

6.5 Insurance. 
 (a) Borrower, at its expense, shall keep the Collateral insured against loss or damage by fire, theft, explosion, sprinklers, and all other hazards and risks, and in such amounts, as ordinarily insured
against by other owners in similar businesses of similar size and financial condition conducted in the locations where Borrower’s business is conducted on the date hereof. Borrower shall also maintain liability and other insurance in amounts
and of a type that are customary to businesses similar to Borrower’s. 

  
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 (b) All such policies of insurance shall be in such form, with such companies, and in such
amounts as reasonably satisfactory to Bank. All policies of property insurance shall contain a lender’s loss payable endorsement, in a form satisfactory to Bank, showing Bank as an additional loss payee, and all liability insurance policies
shall show Bank as an additional insured and specify that the insurer must give at least 30 days notice to Bank before canceling its policy for any reason. Upon Bank’s request, Borrower shall deliver to Bank certified copies of the policies of
insurance and evidence of all premium payments. If no Event of Default has occurred and is continuing, proceeds payable under any casualty policy will, at Borrower’s option, be payable to Borrower to replace the property subject to the claim,
provided that any such replacement property shall be deemed Collateral in which Bank has been granted a first priority security interest. If an Event of Default has occurred and is continuing, all proceeds payable under any such policy shall, at
Bank’s option, be payable to Bank to be applied on account of the Obligations. 
 6.6 Primary Depository. Borrower
shall maintain its primary depository, operating and investment accounts with Bank and/or Bank’s affiliates. 
 6.7
Intentionally Omitted. 
 6.8 Registration of Intellectual Property Rights. 

(a) Borrower shall register or cause to be registered on a reasonably expedited basis (to the extent not already registered) with the
United States Patent and Trademark Office or the United States Copyright Office, as the case may be, those registerable intellectual property rights now owned or hereafter developed or acquired by Borrower, to the extent that Borrower, in its
reasonable business judgment, deems it appropriate to so protect such intellectual property rights. 
 (b) Borrower shall
promptly give Bank written notice of any applications or registrations of intellectual property rights filed with the United States Patent and Trademark Office, including the date of such filing and the registration or application numbers, if any.

 (c) Borrower shall use commercially reasonable efforts to give Bank not less than 30 days prior written notice of the filing
of any applications or registrations with the United States Copyright Office, including the title of such intellectual property rights to be registered, as such title will appear on such applications or registrations, and the date such applications
or registrations will be filed. 
 (d) Borrower shall (i) use commercially reasonable efforts to protect, defend and
maintain the validity and enforceability of the trade secrets, Trademarks, Patents and Copyrights, (ii) use commercially reasonable efforts to detect infringements of the Trademarks, Patents and Copyrights and promptly advise Bank in writing of
material infringements detected and (iii) use commercially reasonable efforts to not allow any material Trademarks, Patents or Copyrights to be abandoned, forfeited or dedicated to the public without the written consent of Bank, which shall not
be unreasonably withheld. 
 6.9 Consent of Inbound Licensors. Prior to entering into or becoming bound by any license or
agreement (other than prepackaged licenses or agreements and any agreements regarding leased access to carrier capacity), Borrower shall: (i) provide written notice to Bank of the material terms of such license or agreement with a description
of its likely impact on Borrower’s business or financial condition; and (ii) in good faith use commercially reasonable efforts to obtain the consent of, or waiver by, any person whose consent or waiver is necessary for Borrower’s
interest in such licenses or contract rights to be deemed Collateral and for Bank to have a security interest in it that might otherwise be restricted by the terms of the applicable license or agreement, whether now existing or entered into in the
future, provided, however, that the failure to obtain any such consent or waiver shall not constitute a default under this Agreement. 

  
 8 

 6.10 Further Assurances. At any time and from time to time Borrower shall execute and
deliver such further instruments and take such further action as may reasonably be requested by Bank to effect the purposes of this Agreement. 
 7. NEGATIVE COVENANTS. 
 Borrower covenants and agrees that, so long as any
credit hereunder shall be available and until the outstanding Obligations are paid in full or for so long as Bank may have any commitment to make any Credit Extensions, Borrower will not do any of the following without Bank’s prior written
consent, which shall not be unreasonably withheld: 
 7.1 Dispositions. Convey, sell, lease, license, transfer or
otherwise dispose of (collectively, to “Transfer”), or permit any of its Subsidiaries to Transfer, all or any part of its business or property, other than Permitted Transfers. 

7.2 Change in Name, Location or Executive Office, Change in Business; Change in Fiscal Year; Change in Control. Change its name,
the Borrower State, or relocate its chief executive office without 30 days prior written notification to Bank; engage in any business, or permit any of its Subsidiaries to engage in any business, other than or reasonably related, substantially
similar to, or incidental to the businesses currently engaged in by Borrower; change its fiscal year end; have a Change in Control. 
 7.3 Mergers or Acquisitions. Merge or consolidate, or permit any of its Subsidiaries to merge or consolidate, with or into any other business organization (other than mergers or consolidations of a
Subsidiary into another Subsidiary or into Borrower or mergers effected solely to change Borrower’s or a Subsidiary’s jurisdiction of incorporation of which Borrower has given Bank proper notice pursuant to Section 7.2), or acquire,
or permit any of its Subsidiaries to acquire, all or substantially all of the capital stock or property of another Person except where (i) such transactions do not in the aggregate exceed $5,000,000, (ii) no Event of Default has occurred,
is continuing or would exist after giving effect to the transactions, and (iii) such transactions are reasonably expected to increase Borrower’s cash flow. 
 7.4 Indebtedness. Create, incur, assume, guarantee or be or remain liable with respect to any Indebtedness, or permit any Subsidiary so to do, other than Permitted Indebtedness, or prepay any
Subordinated Debt if any Event of Default has occurred, is continuing or would exist after giving effect to such prepayment. 

7.5 Encumbrances. Create, incur, assume or allow any Lien with respect to any of its property, or assign or otherwise convey any
right to receive income, including the sale of any Accounts, or permit any of its Subsidiaries so to do, except for Permitted Liens, or covenant to any other Person that Borrower in the future will refrain from creating, incurring, assuming or
allowing any Lien with respect to any of Borrower’s property. 
 7.6 Distributions. Pay any dividends or make any
other distribution or payment on account of or in redemption, retirement or purchase of any capital stock, except that Borrower may (i) repurchase the stock of former employees pursuant to stock repurchase agreements as long as an Event of
Default does not exist prior to such repurchase or would not exist after giving effect to such repurchase, and (ii) repurchase the stock of former employees pursuant to stock repurchase agreements by the cancellation of indebtedness owed by
such former employees to Borrower regardless of whether an Event of Default exists. 
 7.7 Investments. Directly or
indirectly acquire or own, or make any Investment in or to any Person, or permit any of its Subsidiaries so to do, other than Permitted Investments, or maintain or invest any of its property with a Person other than Bank or Bank’s Affiliates
unless such Person has entered into a control agreement with Bank, in form and substance reasonably satisfactory to Bank, or suffer or permit any Subsidiary to be a party to, or be bound by, an agreement that restricts such Subsidiary from paying
dividends or otherwise distributing property to Borrower. 

  
 9 

 7.8 Transactions with Affiliates. Directly or indirectly enter into or permit to
exist any material transaction with any Affiliate of Borrower except for transactions that are in the ordinary course of Borrower’s business, upon fair and reasonable terms that are no less favorable to Borrower than would be obtained in an
arm’s length transaction with a non-affiliated Person. 
 7.9 Subordinated Debt. Make any payment in respect of any
Subordinated Debt, or permit any of its Subsidiaries to make any such payment, except in compliance with the terms of such Subordinated Debt, or amend any provision affecting Bank’s rights contained in any documentation relating to the
Subordinated Debt without Bank’s prior written consent. 
 7.10 Inventory and Equipment. Store the Inventory or the
Equipment with a bailee, warehouseman, or similar third party unless the third party has been notified of Bank’s security interest and Bank (a) has received an acknowledgment from the third party that it is holding or will hold the
Inventory or Equipment for Bank’s benefit or (b) is in possession of the warehouse receipt, where negotiable, covering such Inventory or Equipment. Except for Inventory sold in the ordinary course of business and except for such other
locations as Bank may approve in writing, Borrower shall not store or maintain any material portion of the Inventory or Equipment at a location other than as set forth in Section 10 and such other locations of which Borrower gives Bank prior
written notice and as to which Bank files a financing statement where needed to perfect its security interest. 
 7.11 No
Investment Company. Become or be controlled by an “investment company,” within the meaning of the Investment Company Act of 1940, or become principally engaged in, or undertake as one of its important activities, the business of
extending credit for the purpose of purchasing or carrying margin stock, or use the proceeds of any Credit Extension for such purpose. 
 8. EVENTS OF DEFAULT. 
 Any one or more of the following events shall
constitute an Event of Default by Borrower under this Agreement: 
 8.1 Payment Default. If Borrower fails to pay any of
the Obligations when due; 
 8.2 Covenant Default. 

(a) If Borrower fails to perform any obligation under Section 6.6 or Section 6.7 or violates any of the covenants contained in
Article 7 of this Agreement; or 
 (b) If Borrower fails or neglects to perform or observe any other material term, provision,
condition, covenant contained in this Agreement, in any of the Loan Documents, or in any other present or future agreement between Borrower and Bank and as to any default under such other term, provision, condition or covenant that can be cured, has
failed to cure such default within 20 days after Borrower receives notice thereof or any Responsible Officer of Borrower becomes aware thereof; provided, however, that if the default cannot by its nature be cured within the 20 day period or cannot
after diligent attempts by Borrower be cured within such 20 day period, and such default is likely to be cured within a reasonable time, then Borrower shall have an additional reasonable period (which shall not in any case exceed 30 days) to attempt
to cure such default, and within such reasonable time period the failure to have cured such default shall not be deemed an Event of Default but no Credit Extensions will be made; 

8.3 Defective Perfection. If Bank shall receive at any time following the Closing Date an SOS Report indicating that except for
Permitted Liens, Bank’s security interest in the Collateral is not prior to all other security interests or Liens of record reflected in the report; 
 8.4 Material Adverse Effect. If an event occurs that has a Material Adverse Effect, or if there is a material impairment of the prospect of repayment of any portion of the Obligations or a material
impairment of the value or priority of Bank’s security interests in the Collateral; 

  
 10 

 8.5 Attachment. If any material portion of Borrower’s assets is attached,
seized, subjected to a writ or distress warrant, or is levied upon, or comes into the possession of any trustee, receiver or person acting in a similar capacity and such attachment, seizure, writ or distress warrant or levy has not been removed,
discharged or rescinded within 10 days, or if Borrower is enjoined, restrained, or in any way prevented by court order from continuing to conduct all or any material part of its business affairs, or if a judgment or other claim becomes a lien or
encumbrance upon any material portion of Borrower’s assets, or if a notice of lien, levy, or assessment is filed of record with respect to any material portion of Borrower’s assets by the United States Government, or any department,
agency, or instrumentality thereof, or by any state, county, municipal, or governmental agency, and the same is not paid within ten days after Borrower receives notice thereof, provided that none of the foregoing shall constitute an Event of Default
where such action or event is stayed or an adequate bond has been posted pending a good faith contest by Borrower (provided that no Credit Extensions will be made during such cure period); 

8.6 Insolvency. If Borrower becomes insolvent, or if an Insolvency Proceeding is commenced by Borrower, or if an Insolvency
Proceeding is commenced against Borrower and is not dismissed or stayed within 60 days (provided that no Credit Extensions will be made prior to the dismissal of such Insolvency Proceeding); 

8.7 Other Agreements. If there is a default or other failure to perform in any agreement to which Borrower is a party with a third
party or parties resulting in a right by such third party or parties, whether or not exercised, to accelerate the maturity of any Indebtedness in an amount in excess of $500,000 or that could have a Material Adverse Effect; 

8.8 Subordinated Debt. If Borrower makes any payment on account of Subordinated Debt, except to the extent the payment is allowed
under any subordination agreement entered into with Bank; 
 8.9 Judgments. If a final, non-appealable judgment or
judgments for the payment of money in an amount, individually or in the aggregate, of at least $500,000 shall be rendered against Borrower and shall remain unsatisfied and unstayed for a period of 20 days (provided that no Credit Extensions will be
made prior to the satisfaction or stay of the judgment); or 
 8.10 Misrepresentations. If any material misrepresentation
or material misstatement exists now or hereafter in any warranty or representation set forth herein or in any certificate delivered to Bank by any Responsible Officer pursuant to this Agreement or to induce Bank to enter into this Agreement or any
other Loan Document. 
 9. BANK’S RIGHTS AND REMEDIES. 

9.1 Rights and Remedies. Upon the occurrence and during the continuance of an Event of Default, Bank may, at its election, without
notice of its election and without demand, do any one or more of the following, all of which are authorized by Borrower: 
 (a)
Declare all Obligations, whether evidenced by this Agreement, by any of the other Loan Documents, or otherwise, immediately due and payable (provided that upon the occurrence of an Event of Default described in Section 8.6, all Obligations
shall become immediately due and payable without any action by Bank); 
 (b) Demand that Borrower (i) deposit cash with
Bank in an amount equal to the amount of any Letters of Credit remaining undrawn, as collateral security for the repayment of any future drawings under such Letters of Credit, and (ii) pay in advance all Letter of Credit fees scheduled to be
paid or payable over the remaining term of the Letters of Credit, and Borrower shall promptly deposit and pay such amounts; 

(c) Cease advancing money or extending credit to or for the benefit of Borrower under this Agreement or under any other agreement
between Borrower and Bank; 

  
 11 

 (d) Settle or adjust disputes and claims directly with account debtors for amounts, upon
terms and in whatever order that Bank reasonably considers advisable; 
 (e) Make such payments and do such acts as Bank
considers necessary or reasonable to protect its security interest in the Collateral. Borrower agrees to assemble the Collateral if Bank so requires, and to make the Collateral available to Bank as Bank may designate. Borrower authorizes Bank to
enter the premises where the Collateral is located, to take and maintain possession of the Collateral, or any part of it, and to pay, purchase, contest, or compromise any encumbrance, charge, or lien which in Bank’s determination appears to be
prior or superior to its security interest and to pay all expenses incurred in connection therewith. With respect to any of Borrower’s owned premises, Borrower hereby grants Bank a license to enter into possession of such premises and to occupy
the same, without charge, in order to exercise any of Bank’s rights or remedies provided herein, at law, in equity, or otherwise; 
 (f) Set off and apply to the Obligations any and all (i) balances and deposits of Borrower held by Bank, and (ii) indebtedness at any time owing to or for the credit or the account of Borrower
held by Bank; 
 (g) Ship, reclaim, recover, store, finish, maintain, repair, prepare for sale, advertise for sale, and sell
(in the manner provided for herein) the Collateral. Bank is hereby granted a license or other right, solely pursuant to the provisions of this Section 9.1, to use, without charge, Borrower’s labels, patents, copyrights, rights of use of
any name, trade secrets, trade names, trademarks, service marks, and advertising matter, or any property of a similar nature, as it pertains to the Collateral, in completing production of, advertising for sale, and selling any Collateral and, in
connection with Bank’s exercise of its rights under this Section 9.1, Borrower’s rights under all licenses and all franchise agreements shall inure to Bank’s benefit; 

(h) Sell the Collateral at either a public or private sale, or both, by way of one or more contracts or transactions, for cash or on
terms, in such manner and at such places (including Borrower’s premises) as Bank determines is commercially reasonable, and apply any proceeds to the Obligations in whatever manner or order Bank deems appropriate. Bank may sell the Collateral
without giving any warranties as to the Collateral. Bank may specifically disclaim any warranties of title or the like. This procedure will not be considered adversely to affect the commercial reasonableness of any sale of the Collateral. If Bank
sells any of the Collateral upon credit, Borrower will be credited only with payments actually made by the purchaser, received by Bank, and applied to the indebtedness of the purchaser. If the purchaser fails to pay for the Collateral, Bank may
resell the Collateral and Borrower shall be credited with the proceeds of the sale; 
 (i) Bank may credit bid and purchase at
any public sale; 
 (j) Apply for the appointment of a receiver, trustee, liquidator or conservator of the Collateral, without
notice and without regard to the adequacy of the security for the Obligations and without regard to the solvency of Borrower, any guarantor or any other Person liable for any of the Obligations; and 

(k) Any deficiency that exists after disposition of the Collateral as provided above will be paid immediately by Borrower. 

Bank may comply with any applicable state or federal law requirements in connection with a disposition of the Collateral and compliance will not be
considered adversely to affect the commercial reasonableness of any sale of the Collateral. 
 9.2 Power of Attorney.
Effective only upon the occurrence and during the continuance of an Event of Default, Borrower hereby irrevocably appoints Bank (and any of Bank’s designated officers, or employees) as Borrower’s true and lawful attorney to: (a) send
requests for verification of Accounts or notify account debtors of Bank’s security interest in the Accounts; (b) endorse Borrower’s name on any checks or other forms of payment or security that may come into Bank’s possession;
(c) sign Borrower’s name on any invoice or bill of lading relating to any Account, drafts against account debtors, schedules and assignments of Accounts, verifications of Accounts, and notices to account debtors; (d) dispose of any
Collateral; (e) make, settle, and adjust all claims under and decisions with respect to Borrower’s policies of insurance; (f) settle and adjust disputes and claims respecting the accounts

  
 12 

 
directly with account debtors, for amounts and upon terms which Bank determines to be reasonable; and (g) to file, in its sole discretion, one or more financing or continuation statements
and amendments thereto, relative to any of the Collateral without the signature of Borrower where permitted by law; provided Bank may exercise such power of attorney to sign the name of Borrower on any of the documents described in clause
(g) above regardless of whether an Event of Default has occurred. The appointment of Bank as Borrower’s attorney in fact, and each and every one of Bank’s rights and powers, being coupled with an interest, is irrevocable until all of
the Obligations have been fully repaid and performed and Bank’s obligation to provide advances hereunder is terminated. 

9.3 Accounts Collection. At any time after the occurrence and during the continuation of an Event of Default, (i) Bank may
notify any Person owing funds to Borrower of Bank’s security interest in such funds and verify the amount of such Account, and (ii) Borrower shall collect all amounts owing to Borrower for Bank, receive in trust all payments as Bank’s
trustee, and immediately deliver such payments to Bank in their original form as received from the account debtor, with proper endorsements for deposit. 
 9.4 Bank Expenses. If Borrower fails to pay any amounts or furnish any required proof of payment due to third persons or entities, as required under the terms of this Agreement, then Bank may do
any or all of the following after reasonable notice to Borrower: (a) make payment of the same or any part thereof; (b) set up such reserves under the Revolving Facility as Bank deems reasonably necessary to protect Bank from the exposure
created by such failure; or (c) obtain and maintain insurance policies of the type discussed in Section 6.5 of this Agreement, and take any reasonable action with respect to such policies as Bank deems prudent. Any amounts so paid or
deposited by Bank shall constitute Bank Expenses, shall be immediately due and payable, and shall bear interest at the then applicable rate hereinabove provided, and shall be secured by the Collateral. Any payments made by Bank shall not constitute
an agreement by Bank to make similar payments in the future or a waiver by Bank of any Event of Default under this Agreement. 

9.5 Bank’s Liability for Collateral. So long as Bank complies with reasonable banking practices, Bank has no obligation to
clean up or otherwise prepare the Collateral for sale. All risk of loss, damage or destruction of the Collateral shall be borne by Borrower. 
 9.6 No Obligation to Pursue Others. Bank has no obligation to attempt to satisfy the Obligations by collecting them from any other person liable for them and Bank may release, modify or waive any
collateral provided by any other Person to secure any of the Obligations, all without affecting Bank’s rights against Borrower. Borrower waives any right it may have to require Bank to pursue any other Person for any of the Obligations.

 9.7 Remedies Cumulative. Bank’s rights and remedies under this Agreement, the Loan Documents, and all other
agreements shall be cumulative. Bank shall have all other rights and remedies not inconsistent herewith as provided under the Code, by law, or in equity. No exercise by Bank of one right or remedy shall be deemed an election, and no waiver by Bank
of any Event of Default on Borrower’s part shall be deemed a continuing waiver. No delay by Bank shall constitute a waiver, election, or acquiescence by it. No waiver by Bank shall be effective unless made in a written document signed on behalf
of Bank and then shall be effective only in the specific instance and for the specific purpose for which it was given. Borrower expressly agrees that this Section 9.7 may not be waived or modified by Bank by course of performance, conduct,
estoppel or otherwise. 
 9.8 Demand; Protest. Borrower waives demand, protest, notice of protest, notice of default or
dishonor, notice of payment and nonpayment, notice of any default, nonpayment at maturity, release, compromise, settlement, extension, or renewal of accounts, documents, instruments, chattel paper, and guarantees at any time held by Bank on which
Borrower may in any way be liable. 
 10. NOTICES. 

Unless otherwise provided in this Agreement, all notices or demands by any party relating to this Agreement or any other agreement entered
into in connection herewith shall be in writing and (except for financial statements and other informational documents which may be sent by first-class mail, postage prepaid) shall be personally delivered or sent by a recognized overnight delivery
service, certified mail, postage prepaid, return receipt requested, or by telefacsimile to Borrower or to Bank, as the case may be, at its addresses set forth below: 
  

			
	If to Borrower:	  	Masergy Communications, Inc.
		  	2740 N. Dallas Parkway, Suite 260
		  	Plano, Texas 75093
		  	Attn: Chief Financial Officer
		  	FAX: (214) 442-5677

  
 13 

			
		
	If to Bank:	  	Comerica Bank
		  	M/C 7578
		  	39200 Six Mile Road
		  	Livonia, MI 48152
		  	Attn: National Documentation Services
		
	with a copy to:	  	Comerica Bank
		  	1201 E. Beltline Road
		  	Richardson, Texas 75081
		  	Attn: Stu Bell
		  	FAX: (469) 330-3921

 The parties hereto
may change the address at which they are to receive notices hereunder, by notice in writing in the foregoing manner given to the other. 
 11. CHOICE OF LAW AND VENUE; JURY TRIAL WAIVER. This Agreement shall be governed by, and construed in accordance with, the internal laws of the State of California, without regard to principles of
conflicts of law. Each of Borrower and Bank hereby submits to the exclusive jurisdiction of the state and Federal courts located in the County of Santa Clara, State of California. BANK AND BORROWER EACH ACKNOWLEDGE THAT THE RIGHT TO TRIAL BY JURY IS
A CONSTITUTIONAL ONE, BUT THAT IT MAY BE WAIVED. EACH OF THEM, AFTER CONSULTING OR HAVING HAD THE OPPORTUNITY TO CONSULT, WITH COUNSEL OF THEIR CHOICE, KNOWINGLY, VOLUNTARILY AND INTENTIONALLY WAIVES ANY RIGHT ANY OF THEM MAY HAVE TO A TRIAL BY JURY
IN ANY LITIGATION BASED UPON OR ARISING OUT OF THIS AGREEMENT OR ANY RELATED INSTRUMENT OR LOAN DOCUMENT OR ANY OF THE TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT OR ANY COURSE OF CONDUCT, DEALING, STATEMENTS (WHETHER ORAL OR WRITTEN), OR ACTION OF
ANY OF THEM. THESE PROVISIONS SHALL NOT BE DEEMED TO HAVE BEEN MODIFIED IN ANY RESPECT OR RELINQUISHED BY BANK OR BORROWER, EXCEPT BY A WRITTEN INSTRUMENT EXECUTED BY EACH OF THEM. 

12. REFERENCE PROVISION. 
 12.1 In the event the Jury Trial Waiver set forth above is not enforceable, the parties elect to proceed under this Judicial Reference Provision. 

12.2 With the exception of the items specified in Section 12.3, below, any controversy, dispute or claim (each, a “Claim”)
between the parties arising out of or relating to this Agreement or any other document, instrument or agreement between the undersigned parties (collectively in this Section, the “Loan Documents”), will be resolved by a reference
proceeding in California in accordance with the provisions of Sections 638 et seq. of the California Code of Civil Procedure (“CCP”), or their successor sections, which shall constitute the exclusive remedy for the resolution of any Claim,
including whether the Claim is subject to the reference proceeding. Except as otherwise provided in the Loan Documents, venue for the reference proceeding will be in the Superior Court in the County where the real property involved in the action, if
any, is located or in a County where venue is otherwise appropriate under applicable law (the “Court”). 
 12.3 The
matters that shall not be subject to a reference are the following: (i) foreclosure of any security interests in real or personal property, (ii) exercise of self-help remedies (including, without limitation, set-off),
(iii) appointment of a receiver and (iv) temporary, provisional or ancillary remedies (including, without limitation, writs of attachment, writs of possession, temporary restraining orders or preliminary injunctions). This Agreement does
not limit the right of any party to exercise or oppose any of the rights and remedies described in clauses (i) and (ii) or to seek or oppose from a court of competent jurisdiction any of the items described in clauses (iii) and (iv).
The exercise of, or opposition to, any of those items does not waive the right of any party to a reference pursuant to this Agreement. 

  
 14 

 12.4 The referee shall be a retired Judge or Justice selected by mutual written agreement of
the parties. If the parties do not agree within ten (10) days of a written request to do so by any party, then, upon request of any party, the referee shall be selected by the Presiding Judge of the Court (or his or her representative). A
request for appointment of a referee may be heard on an ex parte or expedited basis, and the parties agree that irreparable harm would result if ex parte relief is not granted. 

12.5 The parties agree that time is of the essence in conducting the reference proceedings. Accordingly, the referee shall be requested,
subject to change in the time periods specified herein for good cause shown, to (i) set the matter for a status and trial-setting conference within fifteen (15) days after the date of selection of the referee, (ii) if practicable, try
all issues of law or fact within one hundred twenty (120) days after the date of the conference and (iii) report a statement of decision within twenty (20) days after the matter has been submitted for decision. 

12.6 The referee will have power to expand or limit the amount and duration of discovery. The referee may set or extend discovery
deadlines or cutoffs for good cause, including a party’s failure to provide requested discovery for any reason whatsoever. Unless otherwise ordered based upon good cause shown, no party shall be entitled to “priority” in conducting
discovery, depositions may be taken by either party upon seven (7) days written notice, and all other discovery shall be responded to within fifteen (15) days after service. All disputes relating to discovery which cannot be resolved by
the parties shall be submitted to the referee whose decision shall be final and binding. 
 12.7 Except as expressly set forth
in this Agreement, the referee shall determine the manner in which the reference proceeding is conducted including the time and place of hearings, the order of presentation of evidence, and all other questions that arise with respect to the course
of the reference proceeding. All proceedings and hearings conducted before the referee, except for trial, shall be conducted without a court reporter, except that when any party so requests, a court reporter will be used at any hearing conducted
before the referee, and the referee will be provided a courtesy copy of the transcript. The party making such a request shall have the obligation to arrange for and pay the court reporter. Subject to the referee’s power to award costs to the
prevailing party, the parties will equally share the cost of the referee and the court reporter at trial. 
 12.8 The referee
shall be required to determine all issues in accordance with existing case law and the statutory laws of the State of California. The rules of evidence applicable to proceedings at law in the State of California will be applicable to the reference
proceeding. The referee shall be empowered to enter equitable as well as legal relief, enter equitable orders that will be binding on the parties and rule on any motion which would be authorized in a court proceeding, including without limitation
motions for summary judgment or summary adjudication. The referee shall issue a decision at the close of the reference proceeding which disposes of all claims of the parties that are the subject of the reference. Pursuant to CCP § 644, such
decision shall be entered by the Court as a judgment or an order in the same manner as if the action had been tried by the Court and any such decision will be final, binding and conclusive. The parties reserve the right to appeal from the final
judgment or order or from any appealable decision or order entered by the referee. The parties reserve the right to findings of fact, conclusions of laws, a written statement of decision, and the right to move for a new trial or a different
judgment, which new trial, if granted, is also to be a reference proceeding under this provision. 
 12.9 If the enabling
legislation which provides for appointment of a referee is repealed (and no successor statute is enacted), any dispute between the parties that would otherwise be determined by reference procedure will be resolved and determined by arbitration. The
arbitration will be conducted by a retired judge or Justice, in accordance with the California Arbitration Act §1280 through §1294.2 of the CCP as amended from time to time. The limitations with respect to discovery set forth above shall
apply to any such arbitration proceeding. 
 12.10 THE PARTIES RECOGNIZE AND AGREE THAT ALL CONTROVERSIES, DISPUTES AND CLAIMS
RESOLVED UNDER THIS REFERENCE PROVISION WILL BE DECIDED BY A REFEREE AND NOT BY A JURY. AFTER CONSULTING (OR HAVING HAD THE OPPORTUNITY TO 

  
 15 

 
CONSULT) WITH COUNSEL OF ITS, HIS OR HER OWN CHOICE, EACH PARTY KNOWINGLY AND VOLUNTARILY, AND FOR THE MUTUAL BENEFIT OF ALL PARTIES, AGREES THAT THIS REFERENCE PROVISION WILL APPLY TO ANY
CONTROVERSY, DISPUTE OR CLAIM BETWEEN OR AMONG THEM ARISING OUT OF OR IN ANY WAY RELATED TO, THIS AGREEMENT OR THE OTHER LOAN DOCUMENTS. 
 13. GENERAL PROVISIONS. 
 13.1 Successors and Assigns. This Agreement
shall bind and inure to the benefit of the respective successors and permitted assigns of each of the parties and shall bind all persons who become bound as a debtor to this Agreement; provided, however, that neither this Agreement nor any rights
hereunder may be assigned by Borrower without Bank’s prior written consent, which consent may be granted or withheld in Bank’s sole discretion. Bank shall have the right without the consent of or notice to Borrower to sell, transfer,
negotiate, or grant participation in all or any part of, or any interest in, Bank’s obligations, rights and benefits hereunder. 
 13.2 Indemnification. Borrower shall defend, indemnify and hold harmless Bank and its officers, employees, and agents against: (a) all obligations, demands, claims, and liabilities claimed or
asserted by any other party in connection with the transactions contemplated by this Agreement, except for obligations, demands, claims and liabilities caused by Bank’s gross negligence or willful misconduct; and (b) all losses or Bank
Expenses in any way suffered, incurred, or paid by Bank, its officers, employees and agents as a result of or in any way arising out of, following, or consequential to transactions between Bank and Borrower whether under this Agreement, or otherwise
(including without limitation reasonable attorneys fees and expenses), INCLUDING ANY OBLIGATIONS, DEMANDS, CLAIMS, LIABILITIES AND LOSSES RESULTING FROM BANK’S OWN NEGLIGENCE OR ARISING OUT OF ANY CLAIM OR THEORY OF STRICT LIABILITY, except in
the case of both (a) and (b) above, for losses caused by Bank’s gross negligence or willful misconduct. 
 13.3
Time of Essence. Time is of the essence for the performance of all obligations set forth in this Agreement. 
 13.4
Severability of Provisions. Each provision of this Agreement shall be severable from every other provision of this Agreement for the purpose of determining the legal enforceability of any specific provision. 

13.5 Amendments in Writing, Integration. The Agreement and the Loan Documents can only be amended in writing. All prior
agreements, understandings, representations, warranties, and negotiations between the parties hereto with respect to the subject matter of this Agreement, if any, are merged into this Agreement and the Loan Documents. 

13.6 Counterparts. This Agreement may be executed in any number of counterparts and by different parties on separate counterparts,
each of which, when executed and delivered, shall be deemed to be an original, and all of which, when taken together, shall constitute but one and the same Agreement. 
 13.7 Survival. All covenants, representations and warranties made in this Agreement shall continue in full force and effect so long as any Obligations remain outstanding. The obligations of
Borrower to indemnify Bank with respect to the expenses, damages, losses, costs and liabilities described in Section 13.2 shall survive until all applicable statute of limitations periods with respect to actions that may be brought against Bank
have run. 
 13.8 Confidentiality. In handling any confidential information, Bank and all employees and agents of Bank
shall exercise the same degree of care that Bank exercises with respect to its own proprietary information of the same types to maintain the confidentiality of any non-public information thereby received or received pursuant to this Agreement except
that disclosure of such information may be made (i) to the subsidiaries or affiliates of Bank in connection with their present or prospective business relations with Borrower, (ii) to prospective transferees or purchasers of any interest
in the Loans, provided that they have entered into a comparable confidentiality agreement in favor of Borrower and have delivered a copy to Borrower, (iii) as required by law, 

  
 16 

 
regulations, rule or order, subpoena, judicial order or similar order, (iv) as may be required in connection with the examination, audit or similar investigation of Bank and (v) as Bank
may determine in connection with the enforcement of any remedies hereunder. Confidential information hereunder shall not include information that either: (a) is in the public domain or in the knowledge or possession of Bank when disclosed to
Bank, or becomes part of the public domain after disclosure to Bank through no fault of Bank; or (b) is disclosed to Bank by a third party, provided Bank does not have actual knowledge that such third party is prohibited from disclosing such
information. 
 13.9 Restatement. This Agreement amends and restates in its entirety the Existing Loan Agreement and from
and after the date hereof, the terms and provisions of the Existing Loan Agreement shall be superseded by the terms and provisions of this Agreement. Borrower hereby agrees that (i) the Indebtedness, all accrued and unpaid interest thereon, and
all accrued and unpaid fees under the Existing Loan Agreement shall be deemed to be Indebtedness of Borrower outstanding under and governed by this Agreement and (ii) all Liens securing such existing Indebtedness shall continue in full force
and effect to secure the Obligations. 
 THIS WRITTEN AGREEMENT AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT
BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. 
 THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES. 
 [Remainder of this
page left blank intentionally.] 

  
 17 

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

			
	MASERGY COMMUNICATIONS, INC.
		
	By:	 	 /s/ Robert E. Bodnar

	Title:	 	 Executive Vice President & CFO

	
	COMERICA BANK
		
	By:	 	 /s/ Stu Bell

	Title:	 	 Vice President

  
 18 

 EXHIBIT A 
 DEFINITIONS 
 “Accounts” means all presently existing and hereafter arising accounts,
contract rights, and all other forms of obligations owing to Borrower arising out of the sale or lease of goods (including, without limitation, the licensing of software and other technology) or the rendering of services by Borrower and any and all
credit insurance, guaranties, and other security therefor, as well as all merchandise returned to or reclaimed by Borrower and Borrower’s Books relating to any of the foregoing. 
 “Affiliate” means, with respect to any Person, any Person that owns or controls directly or indirectly such Person, any Person that controls or is controlled by or is under common control with
such Person, and each of such Person’s senior executive officers, directors, and partners. 
 “Bank Expenses” means all
reasonable costs or expenses (including reasonable attorneys’ fees and expenses, whether generated in-house or by outside counsel) incurred in connection with the preparation, negotiation, administration, and enforcement of the Loan Documents;
reasonable Collateral audit fees; and Bank’s reasonable attorneys’ fees and expenses (whether generated in-house or by outside counsel) incurred in amending, enforcing or defending the Loan Documents (including fees and expenses of
appeal), incurred before, during and after an Insolvency Proceeding, whether or not suit is brought. 
 “Borrower State” means
Delaware, the state under whose laws Borrower is organized. 
 “Borrower’s Books” means all of Borrower’s books and records
including: ledgers; records concerning Borrower’s assets or liabilities, the Collateral, business operations or financial condition; and all computer programs, or tape files, and the equipment, containing such information. 

“Business Day” means any day that is not a Saturday, Sunday, or other day on which banks in the State of California are authorized or required
to close. 
 “Cash” means unrestricted cash and cash equivalents. 
 “Change in Control” shall mean a transaction in which any “person” or “group” (within the meaning of Section 13(d) and 14(d)(2) of the Securities Exchange Act of 1934)
becomes the “beneficial owner” (as defined in Rule 13d-3 under the Securities Exchange Act of 1934), directly or indirectly, of a sufficient number of shares of all classes of stock then outstanding of Borrower ordinarily entitled to vote
in the election of directors, empowering such “person” or “group” to elect a majority of the Board of Directors of Borrower, who did not have such power before such transaction (other than in connection with a sale of
Borrower’s equity securities in a public offering or to venture capital, strategic or institutional investors so long as Borrower notifies Bank prior to the closing of such investment). 
 “Chief Executive Office State” means Texas, where Borrower’s chief executive office is located. 
 “Closing Date” means the date of this Agreement. 
 “Code” means the California
Uniform Commercial Code as amended or supplemented from time to time. 
 “Collateral” means the property described on Exhibit B
attached hereto and all Negotiable Collateral to the extent not described on Exhibit B, except to the extent any such property (i) is nonassignable by its terms without the consent of the licensor thereof or another party (but only to
the extent such prohibition on transfer is enforceable under applicable law, including, without limitation, Sections 9406 and 9408 of the Code), or (ii) the granting of a security interest therein is contrary to applicable law, provided that
upon the cessation of any such restriction or prohibition, such property shall automatically become part of the Collateral. 
 “Collateral
State” means the state or states where the Collateral is located, which are Texas, Delaware and Virginia. 

  
 1 

 “Committed Revolving Line” means a Credit Extension of up to $15,000,000 (inclusive of any amounts
outstanding under the Letters of Credit Sublimit). 
 “Contingent Obligation” means, as applied to any Person, any direct or indirect
liability, contingent or otherwise, of that Person with respect to (i) any indebtedness, lease, dividend, letter of credit or other obligation of another, including, without limitation, any such obligation directly or indirectly guaranteed,
endorsed, co-made or discounted or sold with recourse by that Person, or in respect of which that Person is otherwise directly or indirectly liable; (ii) any obligations with respect to undrawn letters of credit issued for the account of that
Person; and (iii) all obligations arising under any interest rate, currency or commodity swap agreement, interest rate cap agreement, interest rate collar agreement, or other agreement or arrangement designated to protect a Person against
fluctuation in interest rates, currency exchange rates or commodity prices; provided, however, that the term “Contingent Obligation” shall not include endorsements for collection or deposit in the ordinary course of business. The amount of
any Contingent Obligation shall be deemed to be an amount equal to the stated or determined amount of the primary obligation in respect of which such Contingent Obligation is made or, if not stated or determinable, the maximum reasonably anticipated
liability in respect thereof as determined by such Person in good faith; provided, however, that such amount shall not in any event exceed the maximum amount of the obligations under the guarantee or other support arrangement. 

“Contract Loan Value” means 50% of the remaining present value (calculated at a 20% discount rate and the actual contract life as of the date
of determination) of recurring payments under contracts between Borrower and account debtors, as determined by Bank with reference to the most recent Borrowing Base Certificate delivered by Borrower. 

“Copyrights” means any and all copyright rights, copyright applications, copyright registrations and like protections in each work or
authorship and derivative work thereof, whether published or unpublished and whether or not the same also constitutes a trade secret, now or hereafter existing, created, acquired or held. 
 “Credit Extension” means each Revolving Advance or any other extension of credit by Bank to or for the benefit of Borrower hereunder. 
 “Eligible Accounts” means those Accounts that arise in the ordinary course of Borrower’s business that comply with all of Borrower’s representations and warranties to Bank set forth in
Section 5.3; provided, that Bank may change the standards of eligibility by giving Borrower 30 days prior written notice. Unless otherwise agreed to by Bank, Eligible Accounts shall not include the following: 

 

	(1)	Accounts that the account debtor has failed to pay in full within 90 days of invoice date; 

 

	(2)	Accounts with respect to an account debtor, 25% of whose Accounts the account debtor has failed to pay within 90 days of invoice date; 

 

	(3)	Accounts with respect to which the account debtor is an officer, employee, or agent of Borrower; 

 

	(4)	Accounts with respect to which goods are placed on consignment, guaranteed sale, sale or return, sale on approval, bill and hold, demo or promotional, or other terms by
reason of which the payment by the account debtor may be conditional; 

  

	(5)	Accounts with respect to which the account debtor is an Affiliate of Borrower; 

 

	(6)	Accounts with respect to which the account debtor does not have its principal place of business in the United States, except for Eligible Foreign Accounts;

  

	(7)	Accounts with respect to which the account debtor is the United States or any department, agency, or instrumentality of the United States, except for Accounts of the
United States if the payee has assigned its payment rights to Bank and the assignment has been acknowledged under the Assignment of Claims Act of 1940 (31 U.S.C. 3727); 

  
 2 

	(8)	Accounts with respect to which Borrower is liable to the account debtor for goods sold or services rendered by the account debtor to Borrower, but only to the extent of
any amounts owing to the account debtor against amounts owed to Borrower; 

  

	(9)	Accounts that have not yet been billed to the account debtor; 

  

	(10)	Accounts with respect to an account debtor, including Subsidiaries and Affiliates, whose total obligations to Borrower exceed 25% of all Accounts, to the extent such
obligations exceed the aforementioned percentage, except as approved in writing by Bank; 

  

	(11)	Accounts with respect to which the account debtor disputes liability or makes any claim with respect thereto as to which Bank believes, in its sole discretion, that
there may be a basis for dispute (but only to the extent of the amount subject to such dispute or claim), or is subject to any Insolvency Proceeding, or becomes insolvent, or goes out of business; and 

 

	(12)	Accounts the collection of which Bank reasonably determines after inquiry and consultation with Borrower to be doubtful. 

“Eligible Foreign Accounts” means Accounts with respect to which the account debtor does not have its principal place of business in the United
States and that are (i) supported by one or more letters of credit in an amount and of a tenor, and issued by a financial institution, acceptable to Bank, (ii) insured by EXIM Bank, (iii) generated by an account debtor with its
principal place of business in Canada, provided that the Bank has perfected its security interest in the appropriate Canadian province, or (iv) approved by Bank on a case-by-case basis. 
 “Environmental Laws” means all laws, rules, regulations, orders and the like issued by any federal state, local foreign or other governmental or quasi-governmental authority or any agency
pertaining to the environment or to any hazardous materials or wastes, toxic substances, flammable, explosive or radioactive materials, asbestos or other similar materials. 
 “Equipment” means all present and future machinery, equipment, tenant improvements, furniture, fixtures, vehicles, tools, parts and attachments in which Borrower has any interest. 

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended, and the regulations thereunder. 

“Event of Default” has the meaning assigned in Article 8. 
 “GAAP” means United States generally accepted accounting principles, consistently applied, as in effect from time to time. 
 “Indebtedness” means (a) all indebtedness for borrowed money or the deferred purchase price of property or services, including without limitation reimbursement and other obligations with
respect to surety bonds and letters of credit, (b) all obligations evidenced by notes, bonds, debentures or similar instruments, (c) all capital lease obligations, and (d) all Contingent Obligations. 

“Insolvency Proceeding” means any proceeding commenced by or against any Person or entity under any provision of the United States Bankruptcy
Code, as amended, or under any other bankruptcy or insolvency law, including assignments for the benefit of creditors, formal or informal moratoria, compositions, extension generally with its creditors, or proceedings seeking reorganization,
arrangement, or other relief. 

  
 3 

 “Intellectual Property” means all of Borrower’s right, title, and interest in and to the
following: 
  

	(a)	Copyrights, Trademarks and Patents; 

  

	(b)	Any and all trade secrets, and any and all intellectual property rights in computer software and computer software products now or hereafter existing, created, acquired
or held; 

  

	(c)	Any and all claims for damages by way of past, present and future infringement of any of the rights included above, with the right, but not the obligation, to sue for
and collect such damages for said use or infringement of the intellectual property rights identified above; 

  

	(d)	All licenses or other rights to use any of the Copyrights, Patents or Trademarks, and all license fees and royalties arising from such use, to the extent permitted by
such license or rights; 

  

	(e)	All amendments, renewals and extensions of any of the Copyrights, Trademarks or Patents; and 

 

	(f)	All proceeds and products of the foregoing, including without limitation all payments under insurance or any indemnity or warranty payable in respect of any of the
foregoing. 

 “Inventory” means all present and future inventory in which Borrower has any interest, including
merchandise, raw materials, parts, supplies, packing and shipping materials, work in process and finished products intended for sale or lease or to be furnished under a contract of service, of every kind and description now or at any time hereafter
owned by or in the custody or possession, actual or constructive, of Borrower, including such inventory as is temporarily out of its custody or possession or in transit and including any returns upon any accounts or other proceeds, including
insurance proceeds, resulting from the sale or disposition of any of the foregoing and any documents of title representing any of the above, and Borrower’s Books relating to any of the foregoing. 

“Investment” means any beneficial ownership of (including stock, partnership or limited liability company interest or other securities) any
Person, or any loan, advance or capital contribution to any Person. 
 “IRC” means the Internal Revenue Code of 1986, as amended, and
the regulations thereunder. 
 “Letters of Credit” means a commercial or standby letter of credit or similar undertaking issued by
Bank at Borrower’s request in accordance with Section 2.1(b)(iii). 
 “Letters of Credit Sublimit” means a sublimit for
Letters of Credit under the Committed Revolving Line not to exceed $2,000,000. 
 “Lien” means any mortgage, lien, deed of trust,
charge, pledge, security interest or other encumbrance. 
 “Loan Documents” means, collectively, this Agreement, any note or notes
executed by Borrower, and any other document, instrument or agreement entered into between Borrower and Bank in connection with this Agreement, all as amended or extended from time to time. 
 “Material Adverse Effect” means a material adverse effect on (i) the business operations or condition (financial or otherwise) of Borrower and its Subsidiaries taken as a whole or
(ii) the ability of Borrower to repay the Obligations or otherwise perform its obligations under the Loan Documents. 
 “Negotiable
Collateral” means all of Borrower’s present and future letters of credit of which it is a beneficiary, drafts, instruments (including promissory notes), securities, documents of title, and chattel paper, and Borrower’s Books relating
to any of the foregoing. 
 “Obligations” means all debt, principal, interest, Bank Expenses and other amounts owed to Bank by
Borrower pursuant to this Agreement or any other agreement, whether absolute or contingent, due or to become due, now existing or hereafter arising, including any interest that accrues after the commencement of an Insolvency Proceeding and including
any debt, liability, or obligation owing from Borrower to others that Bank may have obtained by assignment or otherwise. 

  
 4 

 “Patents” means all patents, patent applications and like protections including without limitation
improvements, divisions, continuations, renewals, reissues, extensions and continuations-in-part of the same. 
 “Periodic Payments”
means all installments or similar recurring payments that Borrower may now or hereafter become obligated to pay to Bank pursuant to the terms and provisions of any instrument, or agreement now or hereafter in existence between Borrower and Bank.

 “Permitted Indebtedness” means: 
  

	(a)	Indebtedness of Borrower in favor of Bank arising under this Agreement or any other Loan Document; 

 

	(b)	Indebtedness existing on the Closing Date and disclosed in the Schedule; 

  

	(c)	Indebtedness incurred for equipment financing not to exceed an aggregate outstanding amount of $2,000,000 at any time that is either unsecured or secured by a lien
described in clause (c) of the defined term “Permitted Liens,” provided such Indebtedness does not exceed the lesser of the cost or fair market value of the equipment financed with such Indebtedness and no Event of Default has
occurred, is continuing or would exist after giving effect to the incurrence of such Indebtedness; 

  

	(d)	Subordinated Debt; 

  

	(e)	Indebtedness to trade creditors incurred in the ordinary course of business; and 

 

	(f)	Extensions, refinancings and renewals of any items of Permitted Indebtedness, provided that the principal amount is not increased or the terms modified to impose more
burdensome terms upon Borrower or its Subsidiary, as the case may be. 

 “Permitted Investment” means: 

 

	(a)	Investments existing on the Closing Date disclosed in the Schedule; 

  

	(b)	(i) Marketable direct obligations issued or unconditionally guaranteed by the United States of America or any agency or any State thereof maturing within one year from
the date of acquisition thereof, (ii) commercial paper maturing no more than one year from the date of creation thereof and currently having rating of at least A-2 or P-2 from either Standard & Poor’s Corporation or Moody’s
Investors Service, (iii) Bank’s (or its Affiliates’) certificates of deposit maturing no more than one year from the date of investment therein, and (iv) Bank’s (or its Affiliates’) money market accounts;

  

	(c)	Repurchases of stock under the terms of applicable repurchase agreements (i) in an aggregate amount not to exceed $100,000 in any fiscal year, provided that no
Event of Default has occurred, is continuing or would exist after giving effect to the repurchases, or (ii) in any amount where the consideration for the repurchase is the cancellation of indebtedness owed to Borrower regardless of whether an
Event of Default exists; 

  

	(d)	Investments accepted in connection with Permitted Transfers; 

  

	(e)	In addition to the investments described in clause (i) below, investments of Subsidiaries in or to other Subsidiaries or Borrower and Investments by Borrower in
Subsidiaries not to exceed $100,000 in the aggregate in any fiscal year; 

  

	(f)	Investments not to exceed $100,000 in the aggregate in any fiscal year consisting of (i) travel advances and employee relocation loans and other employee loans and
advances in the ordinary course of business, and (ii) loans to employees, officers or directors relating to the purchase of equity securities of Borrower or its Subsidiaries pursuant to employee stock purchase plan agreements approved by
Borrower’s Board of Directors; 

  
 5 

	(g)	Investments (including debt obligations) received in connection with the bankruptcy or reorganization of customers or suppliers and in settlement of delinquent
obligations of, and other disputes with, customers or suppliers arising in the ordinary course of Borrower’s business; 

  

	(h)	Investments consisting of notes receivable of, or prepaid royalties and other credit extensions, to customers and suppliers who are not Affiliates, in the ordinary
course of business, provided that this subparagraph (h) shall not apply to Investments of Borrower in any Subsidiary; 

  

	(i)	Investments in deposit accounts and money market accounts held in the United Kingdom, provided that to the extent the aggregate amount held in such accounts on any
Monday exceeds 500,000 United Kingdom pounds, Borrower shall cause such excess funds to be wire transferred on such day by the close of business to a deposit account of Borrower held with Bank; and 

 

	(j)	Joint ventures or strategic alliances in the ordinary course of Borrower’s business consisting of the non-exclusive licensing of technology, the development of
technology or the providing of technical support, provided that any cash Investments by Borrower do not exceed $100,000 in the aggregate in any fiscal year. 

 “Permitted Liens” means the following: 
  

	(a)	Any Liens existing on the Closing Date and disclosed in the Schedule (excluding Liens to be satisfied with the proceeds of the Advances) or arising under this Agreement
or the other Loan Documents; 

  

	(b)	Liens for taxes, fees, assessments or other governmental charges or levies, either not delinquent or being contested in good faith by appropriate proceedings and for
which Borrower maintains adequate reserves, provided the same have no priority over any of Bank’s security interests; 

  

	(c)	Liens not to exceed an aggregate outstanding amount of $2,000,000 at any time (i) upon or in any Equipment acquired or held by Borrower or any of its Subsidiaries
to secure the purchase price of such Equipment or Indebtedness incurred solely for the purpose of financing the acquisition or lease of such Equipment, so long as no Event of Default has occurred, is continuing or would exist after giving effect to
the incurrence of such Indebtedness or (ii) existing on such Equipment at the time of its acquisition, provided that the Lien is confined solely to the property so acquired and improvements thereon, and the proceeds of such equipment, so long
as no Event of Default has occurred, is continuing or would exist after giving effect to the incurrence of such Indebtedness; 

  

	(d)	Liens incurred in connection with the extension, renewal or refinancing of the indebtedness secured by Liens of the type described in clauses (1) through
(3) above, provided that any extension, renewal or replacement Lien shall be limited to the property encumbered by the existing Lien and the principal amount of the indebtedness being extended, renewed or refinanced does not increase;

  

	(e)	Liens of landlords, carriers, warehousemen, mechanics, laborers and materialmen against property incurred in the ordinary course of Borrower’s business, provided
such Liens secure only indebtedness that is not delinquent or is being contested in good faith by appropriate proceedings and is reserved against (to the extent required by GAAP) by Borrower; 

 

	(f)	Liens incurred in the ordinary course of Borrower’s business in connection with worker’s compensation and unemployment insurance (other than Liens to secure
obligations under ERISA); 

  

	(g)	Liens arising from judgments, decrees or attachments in circumstances not constituting an Event of Default under Sections 8.5 or 8.9; 

 

	(h)	Liens in favor of other financial institutions arising in connection with Borrower’s deposit accounts held at such institutions, provided that Bank has a perfected
security interest in the amounts held in such deposit accounts; 

  
 6 

	(i)	Other Liens not described above arising in the ordinary course of business and not having or not reasonably likely to have a Material Adverse Effect on Borrower and its
Subsidiaries taken as a whole. 

  

	(j)	Liens securing Leases or subleases granted in the ordinary course of business, including in connection with Borrower’s leased premises or leased property; and

  

	(k)	Liens arising in connection with Permitted Transfers. 

 “Permitted Transfer” means the conveyance, sale, lease, transfer or disposition by Borrower or any Subsidiary of: 

(a) Inventory in the ordinary course of business; 

(b) licenses and similar arrangements for the use of the property of Borrower or its Subsidiaries in the ordinary course
of business; 
 (c) worn-out or obsolete Equipment not financed with the proceeds of Equipment Advances;

 (d) escrows of intellectual property in connection with customer sale agreements entered into by Borrower in
the ordinary course of business; or 
 (e) other assets of Borrower or its Subsidiaries which do not in the
aggregate exceed $100,000 during any fiscal year. 
 “Person” means any individual, sole proprietorship, partnership, limited
liability company, joint venture, trust, unincorporated organization, association, corporation, institution, public benefit corporation, firm, joint stock company, estate, entity or governmental agency. 

“Responsible Officer” means each of the Chief Executive Officer, the Chief Operating Officer, the Chief Financial Officer, the Treasurer and
the Assistant Treasurer of Borrower. 
 “Revolving Advance” means a cash advance or cash advances under the Revolving Facility.

 “Revolving Facility” means the facility under which Borrower may request Bank to issue Revolving Advances, as specified in
Section 2.1(b) hereof. 
 “Revolving Maturity Date” means December 27, 2013. 

“Schedule” means the schedule of exceptions attached hereto and approved by Bank, if any. 

“SOS Reports” means the official reports from the Secretaries of State of each Collateral State, Chief Executive Office State and the Borrower
State and other applicable federal, state or local government offices identifying all current security interests filed in the Collateral and Liens of record as of the date of such report. 
 “Subordinated Debt” means any debt incurred by Borrower that is subordinated in writing to the debt owing by Borrower to Bank on terms reasonably acceptable to Bank (and identified as being such
by Borrower and Bank). 
 “Subsidiary” means any corporation, partnership or limited liability company or joint venture in which
(i) any general partnership interest or (ii) more than 50% of the stock, limited liability company interest or joint venture of which by the terms thereof ordinary voting power to elect the Board of Directors, managers or trustees of the
entity, at the time as of which any determination is being made, is owned by Borrower, either directly or through an Affiliate. 

“Trademarks” means any trademark and servicemark rights, whether registered or not, applications to register and registrations of the same and
like protections, and the entire goodwill of the business of Borrower connected with and symbolized by such trademarks. 
 “Unused
Facility” means, as of any date of determination, the lesser of (i) the Maximum Cumulative Draw Allowed for such day and (ii) the most recently determined Contract Loan Value. 

  
 7 

					
	DEBTOR	  	MASERGY COMMUNICATIONS, INC.	  	
			
	SECURED PARTY:	  	COMERICA BANK	  	

 EXHIBIT B 
 COLLATERAL DESCRIPTION ATTACHMENT 
 TO LOAN AND SECURITY AGREEMENT 

All personal property of Borrower (herein referred to as “Borrower” or “Debtor”) whether presently existing or hereafter created or
acquired, and wherever located, including, but not limited to: (a) all accounts (including health-care-insurance receivables), chattel paper (including tangible and electronic chattel paper), deposit accounts, documents (including negotiable
documents), equipment (including all accessions and additions thereto), general intangibles (including payment intangibles and software), goods (including fixtures), instruments (including promissory notes), inventory (including all goods held for
sale or lease or to be furnished under a contract of service, and including returns and repossessions), investment property (including securities and securities entitlements), letter of credit rights, money, and all of Debtor’s books and
records with respect to any of the foregoing, and the computers and equipment containing said books and records; and (b) any and all cash proceeds and/or noncash proceeds of any of the foregoing, including, without limitation, insurance
proceeds, and all supporting obligations and the security therefor or for any right to payment. All terms above have the meanings given to them in the California Uniform Commercial Code, as amended or supplemented from time to time. 

Notwithstanding the foregoing, the Collateral shall not include any copyrights, patents, trademarks, servicemarks and applications therefor, now owned or
hereafter acquired, or any claims for damages by way of any past, present and future infringement of any of the foregoing (collectively, the “Intellectual Property”); provided, however, that the Collateral shall include all accounts and
general intangibles that consist of rights to payment from the sale, licensing or disposition of all or any part of, or rights in, the Intellectual Property (the “Rights to Payment”). Notwithstanding the foregoing, if a judicial authority
(including a U.S. Bankruptcy Court) holds that a security interest in the underlying Intellectual Property is necessary to have a security interest in the Rights to Payment, then the Collateral shall automatically, and effective as of
December 27, 2010, include the Intellectual Property to the extent necessary to permit perfection of Bank’s security interest in the Rights to Payment. 

 EXHIBIT C 
 LOAN PAYMENT/ADVANCE TELEPHONE REQUEST FORM 
 DEADLINE FOR SAME DAY PROCESSING IS 3:00 P.M.,
P.S.T. 
  

			
	TO:       [                    ]	 	DATE:                     
		
	FAX #: [                    ]	 	TIME:                     

 

					
	 
	FROM: MASERGY COMMUNICATIONS, INC.
	CLIENT NAME (BORROWER)	  		  	 
	REQUESTED
BY:                                        
                                         
                                         
                                         
              
	AUTHORIZED SIGNER’S NAME
	 
	AUTHORIZED SIGNATURE:     
                                         
                                         
                                         
                            
	 
	PHONE
NUMBER:                                        
                                         
                                         
                                         
            
	 		 
	FROM ACCOUNT
#                                         
              	  	TO ACCOUNT #	  	                   
                                         
                  
	 	 
	REQUESTED TRANSACTION TYPE	  	REQUEST DOLLAR AMOUNT
	 	  	$                 
                                         
                                         
             
	PRINCIPAL INCREASE (ADVANCE)	  	$                 
                                         
                                         
             
	PRINCIPAL PAYMENT (ONLY)	  	$                 
                                         
                                         
             
	INTEREST PAYMENT (ONLY)	  	$                 
                                         
                                         
             
	PRINCIPAL AND INTEREST (PAYMENT)	  	$                 
                                         
                                         
             
	 
	
OTHER INSTRUCTIONS:                     
                                         
                                         
                                         
             
  

	
 
  

All representations and warranties of Borrower stated in the First Amended and Restated Loan and Security Agreement are true, correct and complete in all
material respects as of the date of the telephone request for an Advance confirmed by this Borrowing Certificate; provided, however, that those representations and warranties expressly referring to another date shall be true, correct and complete in
all material respects as of such date.
  

 

					
	BANK USE ONLY	  	 	  	 
	TELEPHONE REQUEST:	  		  	 
	  

The following person is authorized to request the loan payment transfer/loan advance on the advance designated account and is known to
me.

	 		 
	  
	  		  	  

	Authorized Requester	  		  	Phone #
	 		 
	  
	  		  	  

	Received By (Bank)	  	Phone #
	 		 
	  
	  		  	 
	 Authorized Signature (Bank)

 
	  	 	  	 

 EXHIBIT D 
 BORROWING BASE CERTIFICATE 
  

 

			
	  
 Borrower: Masergy
Communications, Inc.
  
 Commitment
Amount:
  
	  	Lender: Comerica Bank        

 
  

									
	 ACCOUNTS RECEIVABLE
	  				  			
	 1.      Accounts Receivable Book Value as of
            
	  				  	$	            	  
	 2.      Additions (please explain on reverse)
	  				  	$	            	  
	 3.      TOTAL ACCOUNTS RECEIVABLE
	  				  	$	            	  
			
	 ACCOUNTS RECEIVABLE DEDUCTIONS (without duplication)
	  				  			
	 4.      Amounts over 90 days due
	  	$	            	  	  			
	 5.      Balance of 25% over 90 day accounts
	  	$	            	  	  			
	 6.      Concentration Limits
	  				  			
	 7.      Foreign Accounts
	  	$	            	  	  			
	 8.      Governmental Accounts
	  	$	            	  	  			
	 9.      Contra Accounts
	  	$	            	  	  			
	 10.    Demo Accounts
	  	$	            	  	  			
	 11.    Intercompany/Employee Accounts
	  	$	            	  	  			
	 12.    Other (please explain on reverse)
	  	$	            	  	  			
	 13.    TOTAL ACCOUNTS RECEIVABLE DEDUCTIONS
	  				  	$	            	  
	 14.    Eligible Accounts (#3 minus #13)
	  				  			

 The undersigned represents and warrants that the foregoing is true, complete and correct in all material
respects, and that the information reflected in this Borrowing Base Certificate complies with the representations and warranties set forth in the First Amended and Restated Loan and Security Agreement between the undersigned and Comerica Bank.

  

			
	MASERGY COMMUNICATIONS, INC.
		
	By:	 	  

		 	Authorized Signer

 EXHIBIT E 
 COMPLIANCE CERTIFICATE 
  

			
	TO:	  	COMERICA BANK
		
	FROM:	  	MASERGY COMMUNICATIONS, INC.

 The undersigned authorized
officer of Masergy Communications, Inc. hereby certifies that in accordance with the terms and conditions of the First Amended and Restated Loan and Security Agreement between Borrower and Bank (the “Agreement”), (i) Borrower is in
complete compliance for the period ending                          with all required covenants, including without
limitation the ongoing registration of intellectual property rights in accordance with Section 6.8, except as noted below and (ii) all representations and warranties of Borrower stated in the Agreement are true and correct in all material
respects as of the date hereof. Attached herewith are the required documents supporting the above certification. The Officer further certifies that these are prepared in accordance with Generally Accepted Accounting Principles (GAAP) and are
consistently applied from one period to the next except as explained in an accompanying letter or footnotes. 
 Please indicate compliance
status by circling Yes/No under “Complies” column. 
  

											
	 Reporting Covenant
	 	  	  	 Required
	 	 Complies
	 	  	 	  
						
	Quarterly financial statements	 		  	Quarterly within 45 days	 	Yes	 	No	 	
	Annual (CPA Audited)	 		  	FYE within 120 days	 	Yes	 	No	 	
	10K and 10Q	 		  	(as applicable)	 	Yes	 	No	 	
	A/R & A/P Agings, Borrowing Base Cert.	 		  	Quarterly within 45 days	 	Yes	 	No	 	
	A/R Audit	 		  	Initial and Semi-Annual	 	Yes	 	No	 	
	Contract List	 		  	Quarterly within 45 days, if outstanding Advances	 	Yes	 	No	 	
	Backlog Report	 		  	Quarterly within 45 days, if outstanding Advances	 	Yes	 	No	 	
	Financial Projections	 		  	July 31	 	Yes	 	No	 	
			
	 Comments Regarding Exceptions: See Attached.

 
	 		  	BANK USE ONLY
			
		 		  	Received
by:                                        
                                        
                                 
	Sincerely,	 		  	AUTHORIZED SIGNER
			
		 		  	Date:                          
                                         
                                         
                   
			
	  
	 		  	Verified:                         
                                         
                                         
             
	SIGNATURE	 		  	AUTHORIZED SIGNER
			
	  
	 		  	Date:                          
                                         
                                         
                   
	TITLE	 		  	
	  
	 		  	Compliance Status	 	Yes	 	No	 	
	DATE	 		  		 		 		 	

  
 29 

 EXHIBIT F 
 Daily Adjusting LIBOR Addendum To Loan and Security Agreement 
 This Daily Adjusting
LIBOR Addendum to First Amended and Restated Loan and Security Agreement (this “Addendum”) is entered into on January 24, 2011, by and between Comerica Bank (“Bank”) and Masergy Communications, Inc., a Delaware corporation
(“Borrower”). This Addendum supplements the terms of the Loan and Security Agreement dated January 24, 2011 (as from time to time amended, the “Agreement”). 
 1. Definitions. As used in this Addendum, the following terms shall have the following meanings. Initially capitalized terms used and not defined in this Addendum shall have the meanings ascribed thereto
in the Agreement. 
 a. “Applicable Margin” means two and one-quarter percent (2.25%) per annum. 

b. “Business Day” means any day, other than a Saturday, Sunday or any other day designated as a holiday under Federal or
applicable State statute or regulation, on which Bank is open for all or substantially all of its domestic and international business (including dealings in foreign exchange) in Detroit, Michigan and San Jose, California, and, in respect of notices
and determinations relating the Daily Adjusting LIBOR Rate, also a day on which dealings in dollar deposits are also carried on in the London interbank market and on which banks are open for business in London, England. 

c. “Daily Adjusting LIBOR Rate” means, for any day, a per annum interest rate which is equal to the Applicable Margin, plus the
quotient of the following: 
  

	 	(13)	for any day, the per annum rate of interest determined on the basis of the rate for deposits in United States Dollars for a period equal to one (1) month appearing
on Page BBAM of the Bloomberg Financial Markets Information Service as of 8:00 a.m. (California time) (or as soon thereafter as practical) on such day, or if such day is not a Business Day, on the immediately preceding Business Day. In the event
that such rate does not appear on Page BBAM of the Bloomberg Financial Markets Information Service (or otherwise on such Service) on any day, the “Daily Adjusting LIBOR Rate” for such day shall be determined by reference to such other
publicly available service for displaying eurodollar rates as may be reasonably selected by Bank, or in the absence of such other service, the “Daily Adjusting LIBOR Rate” for such day shall, instead, be determined based upon the average
of the rates at which Bank is offered dollar deposits at or about 8:00 a.m. (California time) (or as soon thereafter as practical), on such day, or if such day is not a Business Day, on the immediately preceding Business Day, in the interbank
eurodollar market in an amount comparable to the principal amount of the Obligations and for a period equal to one (1) month; 

   divided by 
  

	 	(14)	a percentage (expressed as a decimal) equal to 1.00 minus the maximum rate on such day at which Bank is required to maintain reserves on “Euro-currency
Liabilities” as defined in and pursuant to Regulation D of the Board of Governors of the Federal Reserve System or, if such regulation or definition is modified, and as long as Bank is required to maintain reserves against a category of
liabilities which includes eurodollar deposits or includes a category of assets which includes eurodollar loans, the rate at which such reserves are required to be maintained on such category. 

d. “LIBOR Lending Office” means Bank’s office located in the Cayman Islands, British West Indies, or such other branch of
Bank, domestic or foreign, as it may hereafter designate as its LIBOR Lending Office by notice to Borrower. 
 e. “Prime
Rate” means the per annum interest rate established by Bank as its prime rate for its borrowers, as such rate may vary from time to time, which rate is not necessarily the lowest rate on loans made by Bank at any such time. 

f. “Prime-based Rate” means a per annum interest rate which is equal to the greater of (i) the Prime Rate; or
(ii) the rate of interest equal to the sum of (a) one percent (1%), and (b) the rate of interest equal to the average of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal
funds brokers (the “Overnight Rates”), as published by the Federal Reserve Bank of New York, or, if the Overnight Rates are not so published for any day, the average of the quotations for the Overnight Rates received by Bank from three
(3) Federal funds brokers of recognized standing selected by Bank, as the same may be changed from time to time. 

  
 1 

 2. Interest Rate Options. Subject to the terms and conditions of this Addendum, the Obligations under
the Agreement shall bear interest at the Daily Adjusting LIBOR Rate, except during any period of time during which, in accordance with the terms and conditions of this Addendum, the Obligations under the Agreement shall bear interest at the
Prime-based Rate. 
 3. Payment of Interest. Accrued and unpaid interest on the unpaid balance of the Obligations outstanding under the
Agreement shall be payable quarterly, in arrears, on the first Business Day of each calendar quarter, until maturity (whether as stated herein, by acceleration, or otherwise). In the event that any payment under this Addendum becomes due and payable
on any day which is not a Business Day, the due date thereof shall be extended to the next succeeding Business Day, and, to the extent applicable, interest shall continue to accrue and be payable thereon during such extension at the rates set forth
in this Addendum. Interest accruing hereunder shall be computed on the basis of a year of 360 days, and shall be assessed for the actual number of days elapsed, and in such computation, effect shall be given to any change in the applicable interest
rate as a result of any change in the Daily Adjusting LIBOR Rate or, to the extent applicable, the Prime-based Rate on the date of each such change. 
 4. Bank’s Records. The amount and date of each advance under the Agreement, its applicable interest rate, and the amount and date of any repayment shall be noted on Bank’s records, which
records shall be conclusive evidence thereof, absent manifest error; provided, however, any failure by Bank to make any such notation, or any error in any such notation, shall not relieve Borrower of its obligations to repay Bank all amounts payable
by Borrower to Bank under or pursuant to this Addendum and the Agreement, when due in accordance with the terms hereof. For any advance under the Agreement bearing interest at the Daily Adjusting LIBOR Rate, if Bank shall designate a LIBOR Lending
Office which maintains books separate from those of the rest of Bank, Bank shall have the option of maintaining and carrying such advance on the books of such LIBOR Lending Office. 
 5. Default Interest Rate. From and after the occurrence of any Event of Default, and so long as any such Event of Default remains unremedied or uncured thereafter, the Obligations outstanding under
the Agreement shall bear interest at a per annum rate of five percent (5%) above the otherwise applicable interest rate hereunder, which interest shall be payable upon demand. In addition to the foregoing, a late payment charge equal to five
percent (5%) of each late payment hereunder may be charged on any payment not received by Bank within ten (10) calendar days after the payment due date therefor, but acceptance of payment of any such charge shall not constitute a waiver of
any Event of Default under the Agreement. In no event shall the interest payable under this Addendum and the Agreement at any time exceed the maximum rate permitted by law. 
 6. Prepayment. Borrower may prepay all or part of the outstanding balance of any Obligations at any time without premium or penalty. Any prepayment hereunder shall also be accompanied by the
payment of all accrued and unpaid interest on the amount so prepaid. Borrower hereby acknowledges and agrees that the foregoing shall not, in any way whatsoever, limit, restrict, or otherwise affect Bank’s right to make demand for payment of
all or any part of the Obligations under the Agreement due on a demand basis in Bank’s sole and absolute discretion. 
 7. Regulatory
Developments or Other Circumstances Relating to the Daily Adjusting LIBOR Rate. 
  

	1.	If, at any time, Bank determines that, (1) Bank is unable to determine or ascertain the Daily Adjusting LIBOR Rate, or (2) by reason of circumstances
affecting the foreign exchange and interbank markets generally, deposits in eurodollars in the applicable amounts or for the relative maturities are not being offered to Bank, or (3) the Daily Adjusting LIBOR Rate will not accurately or fairly
cover or reflect the cost to Bank of maintaining any of the Obligations under this Addendum at the Daily Adjusting LIBOR Rate, then Bank shall forthwith give notice thereof to Borrower. Thereafter, until Bank notifies Borrower that such conditions
or circumstances no longer exist, the Prime-based Rate shall be the applicable interest rate for all Obligations during such period of time. 

 g. If, after the date hereof, the introduction of, or any change in, any applicable law, rule or regulation or in the interpretation or administration thereof by any governmental authority charged with
the interpretation or administration thereof, or compliance by Bank (or its LIBOR Lending Office) with any request or directive (whether or not having the force of law) of any such authority, shall make it unlawful or impossible for the Bank (or its
LIBOR Lending Office) to make or maintain any Obligations under the Agreement with interest at the Daily Adjusting LIBOR Rate, Bank shall forthwith give notice thereof to Borrower. Thereafter, until Bank notifies Borrower that such conditions or
circumstances no longer exist, the Prime-based Rate shall be the applicable interest rate for all Obligations during such period of time. 
 h. Further, at any time upon prior written notice to the undersigned, Bank may, in its sole discretion based upon its good faith belief that the Prime-based Rate is an appropriate basis for its floating
rate loans, suspend use of the Daily Adjusting LIBOR Rate as the applicable interest rate hereunder, at which time, the Prime-based Rate shall thereafter be the applicable interest rate for all Obligations outstanding under the Agreement, unless
Bank, in its sole discretion based upon its good faith belief that the Prime-based Rate is no longer an appropriate basis for its floating rate loans, rescinds such notice, in which case, the Daily Adjusting LIBOR Rate shall, upon written notice
from Bank to the undersigned, again be the applicable interest rate for all Obligations outstanding under the Agreement. 

  
 2 

 i. If the adoption after the date hereof, or any change after the date hereof in, any
applicable law, rule or regulation (whether domestic or foreign) of any governmental authority, central bank or comparable agency charged with the interpretation or administration thereof, or compliance by Bank (or its LIBOR Lending Office) with any
request or directive (whether or not having the force of law) made by any such authority, central bank or comparable agency after the date hereof: (a) shall subject Bank (or its LIBOR Lending Office) to any tax, duty or other charge with
respect to this Addendum or any Obligations under the Agreement, or shall change the basis of taxation of payments to Bank (or its LIBOR Lending Office) of the principal of or interest under this Addendum or any other amounts due under this Addendum
in respect thereof (except for changes in the rate of tax on the overall net income of Bank or its LIBOR Lending Office imposed by the jurisdiction in which Bank’s principal executive office or LIBOR Lending Office is located); or
(b) shall impose, modify or deem applicable any reserve (including, without limitation, any imposed by the Board of Governors of the Federal Reserve System), special deposit or similar requirement against assets of, deposits with or for the
account of, or credit extended by Bank (or its LIBOR Lending Office), or shall impose on Bank (or its LIBOR Lending Office) or the foreign exchange and interbank markets any other condition affecting this Addendum or the Obligations; and the result
of any of the foregoing is to increase the cost to Bank of maintaining any part of the Obligations or to reduce the amount of any sum received or receivable by Bank under this Addendum by an amount deemed by the Bank to be material, then Borrower
shall pay to Bank, within fifteen (15) days of Borrower’s receipt of written notice from Bank demanding such compensation, such additional amount or amounts as will compensate Bank for such increased cost or reduction. A certificate of
Bank, prepared in good faith and in reasonable detail by Bank and submitted by Bank to Borrower, setting forth the basis for determining such additional amount or amounts necessary to compensate Bank shall be conclusive and binding for all purposes,
absent manifest error. 
 j. In the event that any applicable law, treaty, rule or regulation (whether domestic or foreign) now
or hereafter in effect and whether or not presently applicable to Bank, or any interpretation or administration thereof by any governmental authority charged with the interpretation or administration thereof, or compliance by Bank with any
guideline, request or directive of any such authority (whether or not having the force of law), including any risk-based capital guidelines, affects or would affect the amount of capital required or expected to be maintained by Bank (or any
corporation controlling Bank), and Bank determines that the amount of such capital is increased by or based upon the existence of any obligations of Bank hereunder or the maintaining of any Obligations, and such increase has the effect of reducing
the rate of return on Bank’s (or such controlling corporation’s) capital as a consequence of such obligations or the maintaining of such Obligations to a level below that which Bank (or such controlling corporation) could have achieved but
for such circumstances (taking into consideration its policies with respect to capital adequacy), then Borrower shall pay to Bank, within fifteen (15) days of Borrower’s receipt of written notice from Bank demanding such compensation,
additional amounts as are sufficient to compensate Bank (or such controlling corporation) for any increase in the amount of capital and reduced rate of return which Bank reasonably determines to be allocable to the existence of any obligations of
the Bank hereunder or to maintaining any Obligations. A certificate of Bank as to the amount of such compensation, prepared in good faith and in reasonable detail by the Bank and submitted by Bank to Borrower, shall be conclusive and binding for all
purposes absent manifest error. 
 8. Legal Effect. Except as specifically modified hereby, all of the terms and conditions of the
Agreement remain in full force and effect. 
 9. Conflicts. As to the matters specifically the subject of this Addendum, in the event of
any conflict between this Addendum and the Agreement, the terms of this Addendum shall control. 
 IN WITNESS WHEREOF, the
parties have agreed to the foregoing as of the date first set forth above. 
  

											
	COMERICA BANK	 		 	MASERGY COMMUNICATIONS, INC.
						
	By:	  	 /s/ Stu Bell
	 		 	By:	 	 /s/ Robert E. Bodnar
	 	
						
	Title:	  	 Vice President
	 		 	Its:	 	 Executive Vice President & CFO
	 	

  
 3 

 SCHEDULE OF EXCEPTIONS 
 Permitted Indebtedness (Exhibit A) 
 Permitted Investments (Exhibit A) 

We periodically invest in Certificates of Deposit with maturities between 90 and 360 days, which are reflected as short-term investments for financial
statement purposes. All of these CDs are held at Comerica or its affiliates. 
 Permitted Liens (Exhibit A) 

Security Interest (Section 4.1) 

Possession of Collateral (Section 4.2) 

Collateral (Section 5.3) 
 We maintain
our primary depository, operating and investment accounts with Comerica. We also maintain foreign bank accounts with Barclays and Chase for the international operations of our UK subsidiary, Masergy Communications UK Limited. As of December 31,
2010, $17.9 million of our $19.5 million in cash and short-term investments was maintained at Comerica or its affiliates. 
 Intellectual
Property Collateral (Section 5.4) 
  

	 	1.	Supply Agreement entered into by and between Alcatel USA Marketing, Inc. and Masergy Communications, Inc. on May 17, 2004 

 

	 	2.	Master Software License Agreement between Convergys Information Management Croup, Inc. and Masergy Communications on December 17, 2001 

 

	 	3.	Professional Services Agreement between Convergys Information Management Group, Inc. and Masergy Communications, Inc. executed April 8, 2002

  

	 	4.	Oracles’ License and Services Agreement 

  

	 	5.	Avaya - Strategic Partner Agreement May 26, 2010 

  

	 	6.	Vertex - Software License Agreement Jan 31, 2002 

  

	 	7.	GENBAND Inc. - Master Purchase Agreement Feb 10, 2010 

  

	 	8.	Overture Network - Purchase Agreement Dec 5, 2008 

  

	 	9.	ReachView Technologies Inc. - Software Maintenance Contract Dec 28, 2007 

 Prior Names (Section 5.5) 
 We also do business through our wholly-owned UK subsidiary,
Masergy Communications UK Limited. 
 Litigation (Section 5.6) 
 Inbound Licenses (Section 5.12) 
 No material licenses or agreements to which Borrower is a
party include express restrictions on Borrower granting a security interest to a third party. However, the vast majority of licenses and agreements to which Borrower is a party include various restrictions on assignment of such licenses or
agreements such that such an assignment is only permitted only pursuant to one or more of the following: (i) upon consent of the other party, with such consent not being unreasonably withheld; (ii) pursuant to one or more of a merger,
acquisition, financing, and/or sale of all or substantially all of the business or assets of the Borrower; or (iii) to an affiliate. Such various restrictions may be interpreted to prevent the granting of a security interest without consent and
may be interpreted to prevent Bank from foreclosing, assuming, or assigning such licenses and agreements without consent pursuant to Bank’s security interest in such licenses and agreements. 

  

 Corporation Resolutions and Incumbency Certification 

Authority to Procure Loans 
 I certify
that I am the duly elected and qualified Secretary of Masergy Communications, Inc. (the “Corporation”); that the following is a true and correct copy of resolutions duly adopted by the Board of Directors of the Corporation in accordance
with its bylaws and applicable statutes. 
 Copy of Resolutions: 
 Be it Resolved, That: 
  

	1.	Any one (1) of the following Executive Chairman, Chief Executive Officer and Chief Financial Officer (insert titles only) of the Corporation is authorized, for, on
behalf of, and in the name of the Corporation to: 

  

	 	(a)	Negotiate and procure loans, letters of credit and other credit or financial accommodations from Comerica Bank (“Bank”), including, without limitation, that
certain First Amended and Restated Loan and Security Agreement dated as of January 24, 2011, as it may subsequently be amended from time to time. 

  

	 	(b)	Discount with the Bank, commercial or other business paper belonging to the Corporation made or drawn by or upon third parties, without limit as to amount;

  

	 	(c)	Purchase, sell, exchange, assign, endorse for transfer and/or deliver certificates and/or instruments representing stocks, bonds, evidences of Indebtedness or other
securities owned by the Corporation, whether or not registered in the name of the Corporation; 

  

	 	(d)	Give security for any liabilities of the Corporation to the Bank by grant, security interest, assignment, lien, deed of trust or mortgage upon any real or personal
property, tangible or intangible of the Corporation; 

  

	 	(e)	Issue a warrant or warrants to purchase the Corporation’s capital stock; and 

 

	 	(f)	Execute and deliver in form and content as may be required by the Bank any and all notes, evidences of Indebtedness, applications for letters of credit, guaranties,
subordination agreements, loan and security agreements, financing statements, assignments, liens, deeds of trust, mortgages, trust receipts and other agreements, instruments or documents to carry out the purposes of these Resolutions, any or all of
which may relate to all or to substantially all of the Corporation’s property and assets. 

  

	2.	Said Bank be and it is authorized and directed to pay the proceeds of any such loans or discounts as directed by the persons so authorized to sign, whether so payable
to the order of any of said persons in their individual capacities or not, and whether such proceeds are deposited to the individual credit of any of said persons or not; 

 

	3.	Any and all agreements, instruments and documents previously executed and acts and things previously done to carry out the purposes of these Resolutions are ratified,
confirmed and approved as the act or acts of the Corporation. 

  

	4.	These Resolutions shall continue in force, and the Bank may consider the holders of said offices and their signatures to be and continue to be as set forth in a
certified copy of these Resolutions delivered to the Bank, until notice to the contrary in writing is duly served on the Bank (such notice to have no effect on any action previously taken by the Bank in reliance on these Resolutions).

  

	5.	Any person, corporation or other legal entity dealing with the Bank may rely upon a certificate signed by an officer of the Bank to effect that these Resolutions and
any agreement, instrument or document executed pursuant to them are still in full force and effect and binding upon the Corporation. 

  

	6.	The Bank may consider the holders of the offices of the Corporation and their signatures, respectively, to be and continue to be as set forth in the Certificate of the
Secretary of the Corporation until notice to the contrary in writing is duly served on the Bank. 

  
 1 

 I further certify that the above Resolutions are in full force and effect as of the date of
this Certificate; that these Resolutions and any borrowings or financial accommodations under these Resolutions have been properly noted in the corporate books and records, and have not been rescinded, annulled, revoked or modified; that neither the
foregoing Resolutions nor any actions to be taken pursuant to them are or will be in contravention of any provision of the articles of incorporation or bylaws of the Corporation or of any agreement, indenture or other instrument to which the
Corporation is a party or by which it is bound; and that neither the articles of incorporation nor bylaws of the Corporation nor any agreement, indenture or other instrument to which the Corporation is a party or by which it is bound require the
vote or consent of shareholders of the Corporation to authorize any act, matter or thing described in the foregoing Resolutions. 
 I further
certify that the following named persons have been duly elected to the offices set opposite their respective names, that they continue to hold these offices at the present time, and that the signatures which appear below are the genuine, original
signatures of each respectively: 
 (PLEASE SUPPLY GENUINE SIGNATURES OF AUTHORIZED SIGNERS BELOW) 

 

											
	NAME (Type or Print)	  		  	TITLE	  				  	SIGNATURE
					
	Royce Holland	  		  	Executive Chairman	  				  	/s/ Royce Holland
					
	Chris MacFarland	  		  	Chief Executive Officer	  				  	/s/ Chris MacFarland
					
	Robert E. Bodnar	  		  	 Executive Vice
 President & Chief
 Financial Officer
	  				  	/s/ Robert E. Bodnar
					
	  
	  	  	  	  
	  				  	  

					
	  
	  	  	  	  
	  				  	  

					
	  
	  	  	  	  
	  				  	  

					
	  
	  	  	  	  
	  				  	  

 In Witness Whereof, I have affixed my name as Secretary and have caused the corporate seal (where available) of said Corporation to be affixed on January 24, 2011. 

 

	
	 /s/ Robert E. Bodnar

	                Secretary

*** 
  

			
	The Above Statements are Correct.	 	 /s/ Robert E. Bodnar

		 	SIGNATURE OF OFFICER OR DIRECTOR OR, IF NONE. A SHAREHOLDER OTHER THAN SECRETARY WHEN SECRETARY IS AUTHORIZED TO SIGN ALONE.

Failure to complete the above when the Secretary is authorized to sign alone shall constitute a certification by the Secretary that the Secretary is the
sole Shareholder, Director and Officer of the Corporation. 

  
 2

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