Excess Costs. Any costs of the ​ Improvements which exceed the ​ Improvement Allowance shall be the financial responsibility of ​. Any improvements to the Expansion Space, other than as shown on the ​ Phase 1 Working Drawings and/or ​ Phase 2 Working Drawings, and the furnishing of the Expansion Space, shall be made by ​ at the sole cost and expense of ​, subject to all other provisions of this Third Addendum and the Lease, including the cost of any improvements required to comply with applicable governmental laws, ordinances, and regulations. Any excess or unused portion of the ​ Improvement Allowance shall be retained by the ​.

To the extent that the total projected cost of the Tenant Improvements (as projected or approved by Landlord) exceeds the TI Allowance (such excess, the “Excess TI Costs”), Tenant shall pay the costs of the Tenant Improvements on a pari passu basis with Landlord as such costs are paid, in the proportion of such Excess TI Costs payable by Tenant to the TI Allowance payable by Landlord. If the entire Excess TI Costs advanced by Tenant to Landlord are not applied toward the costs of the Tenant Improvements, then Landlord shall promptly return such excess to Tenant following completion of all of the Tenant Improvements.

Excess Tl Costs. Notwithstanding anything to the contrary contained herein, Tenant acknowledges and agrees that Landlord shall have no responsibility for any costs arising from or related to Tenant’s Changes to the Space Plans or Tl Construction Drawings, Tenant Delays, the cost of Changes and Change Requests which would increase any of the costs anticipated by Landlord for Landlord’s Work (collectively, “Excess Tl Costs”). Landlord shall provide Tenant with the line-item amount of any Excess Tl Costs incurred along with reasonable supporting evidence but, for the avoidance of any doubt, in no event shall Landlord be required to provide Tenant with its budget for Landlord’s Work. Tenant shall deposit with Landlord, as a condition precedent to Landlord’s obligation to complete the Tenant Improvements, 100% of the Excess Tl Costs within 5 business days after written request from Landlord. If Tenant fails to deposit any Excess Tl Costs with Landlord, Landlord shall have all of the rights and remedies set forth in the Lease for nonpayment of Rent (including, but not limited to, the right to interest at the Default Rate and the right to assess a late charge). For purposes of any litigation instituted with regard to such amounts, those amounts will be deemed Rent under the Lease.

TI Account; TI Deposit Agreement. Notwithstanding anything in this Work Letter to the contrary, if ​’s construction lender requires that ​ deposit ​’s Contribution into a separate account with ​’s construction lender (the “TI

Amount of ​’s Contribution. ​ shall pay, as ​’s contribution to the payment of the ​ Improvement Costs (“​’s Contribution”), the sum of # the amount of the ​ Improvement Costs in excess of the ​ Improvement Allowance up to, but not to exceed, the Final TI Cost Budget (subject to any adjustment to the Final TI Cost Budget to account for the cost of Changes to the ​ Improvements approved by ​ and ​ as provided for in [Section 2.7(c)] above,) plus # any increases in ​ Improvement Costs resulting from ​ Delays plus # any amount payable by ​ pursuant to [Section 2.8(d)] above. In addition to the ​ Improvement Allowance, ​ shall be responsible for any ​ Improvement Costs, if any, in excess of ​’s Contribution.

Additional TI Allowance. Pursuant to the terms of [Section 4] of the Tenant Work Letter attached to the Lease as [Exhibit B], Tenant was entitled to an Additional TI Allowance of up to $ (the "Additional TI Allowance"). Notwithstanding any provision to the contrary contained in the Lease, Landlord and Tenant hereby acknowledge and agree that Tenant has utilized and /100 Dollars ($ . ) of the Additional TI Allowance (the "Utilized Additional TI Allowance").

Excess Deferrals. If a Participant has Excess Deferrals for a taxable year, the Participant may, not later than March 1st following the close of such taxable year, notify the Administrator in writing of such excess and request that the Participant's Elective Deferrals under this Plan be reduced by an amount specified by the Participant. In such event, the Administrator shall direct the distr ibution of such excess amount (and any "income" allocable to such excess amount) to the Participant not later than the first April 15th following the close of the Participant's taxable year. Any distribution of less than the entire amount of Excess Deferrals and "income" shall be treated as a pro rata distribution of Excess Deferrals and "income." The amount distributed shall not exceed the Participant's Elective Deferrals under the Plan for the taxable year. Any distribution on or before the last day of the Participant's taxable year m ust satisfy each of the following conditions:

Excess Usage. Tenant shall reimburse Landlord for the actual cost without markup of any excess water, sewer and chiller usage in the Premises. Excess usage shall mean the excess of the estimated usage in the Premises (per square foot of rentable area) during any three (3) month billing period over the average usage (per square foot of rentable area) during the same period for the entire Commercial/Garage Unit, as reasonably calculated by Landlord in good faith and with commercially reasonable documentation thereof provided to Tenant promptly upon Tenant’s written requests from time-to-time.

Arbitration Costs. The arbitrator shall determine the proportions in which the parties shall pay the costs of the arbitration procedure. The arbitrator shall have the authority to order that all or a part of the legal or other costs of a party incurred in relation to the arbitration shall be paid by the other party.

Taxes / Costs. Each Party acknowledges that this Agreement may have U.S. federal and state tax (collectively, “Tax”) or other consequences, and that the Party is not relying on any other Party for advice, representations or communications as to any potential Tax or other consequences. This Agreement is enforceable regardless of its Tax or other consequences. The Parties agree that they shall bear their own costs and attorneys’ fees relating to or arising from the Litigation and to the documentation and negotiation of this Agreement. Enzo is solely responsible for its own Tax liability, if any, resulting from this Agreement.

Increased Costs. If the Bank shall determine that, due to either # the introduction of any change (other than any change by way of imposition of or increase in reserve requirements included in the calculation of the LIBOR Rate) in or in the interpretation of any requirement of law or # the compliance with any guideline or request from any central bank or other governmental authority (whether or not having the force of law), there shall be any increase in the cost to the Bank of agreeing to make or making, funding or maintaining any loans based on LIBOR, then Borrower shall be liable for, and shall from time to time, upon demand therefor by the Bank, pay to the Bank such additional amounts as are sufficient to compensate the Bank for such increased costs.

the amount of expenses, if any relating to payments made to holders of stock options or other compensatory equity-based awards in Parent or any other Parent Holding Company in connection with, or as a result of, any distribution being made to equity holders or unit holders of such Person or its direct or indirect parent companies, which payments are being made to compensate such holders of compensatory equity-based awards as though they were shareholders or unit holders at the time entitled to share in such distribution, in each case to the extent permitted by this Agreement,

CD TI Cost Proposal....................................................................................................... [Exhibit B]

Final TI Cost Budget....................................................................................................... [Exhibit B]

TI Construction Document Package................................................................................ [Exhibit B]

You agree that if # during your employment by TI and for a period of two years thereafter you engage in Competition (as defined in [Section 9]), either directly or indirectly, for your own benefit or on behalf of any other person or entity, or # at any time, you use or disclose, either directly or indirectly, to any third party any Confidential Information when not required to do so in your work for TI or without the prior written consent of TI, or # during the Non-solicitation Period, you solicit or recruit, either directly or indirectly, without the prior written consent of TI, any TI employee to be an employee, director, officer, agent, consultant, partner or independent contractor for your own benefit or for any other person or entity, or # during the Non-solicitation Period, you solicit, either directly or indirectly, without the prior written consent of TI, for your own benefit or for any other person or entity, any TI customer to which you marketed or sold TI products during the last 2 years of your employment with TI, then # the option shall not be thereafter exercisable at any time, and # you shall repay immediately to the Company any profit (spread between the Option Price (as defined in [Section 9]) and the market price of the Company’s common stock on the date of exercise) made on the option within three years prior to termination of your employment or any time after termination of your employment. Any amount payable to the Company pursuant to this provision may be reduced or waived as the Company, in its sole judgment, deems warranted by the circumstances.

TI’s, Units location, FROR and Renewal Option EXHIBIT “C”

Tenant Delay: Any of the following types of delay in the completion of construction of Landlord's TI Work (but in each instance, only to the extent that any of the following has actually and proximately caused substantial completion of Landlord's TI Work to be delayed):