Additional Tenant Improvement Allowance. In addition to the Tenant Improvement Allowance, Tenant shall have the right, by written notice to Landlord given on or before the Allowance Deadline, to cause Landlord to provide up to $50.00 per rentable square foot of the Premises (i.e., up to $4,405,300.00) (the "Additional TI Allowance") towards the payment of the costs of the Tenant Improvement Allowance Items. In the event Tenant exercises its right to use all or any portion of the Additional TI Allowance, Tenant shall be required to pay Landlord, commencing on the date the Tenant Improvements are completed (the "Additional Payment Commencement Date"), the "Additional TI Allowance Payment," as that term is defined below, in consideration of Landlord provision of the Additional TI Allowance. The "Additional TI Allowance Payment" shall be determined as the missing component of an annuity, which annuity shall have # the amount of the Additional TI Allowance utilized by Tenant as the present value amount, # a number equal to the number of full calendar months then remaining in the Lease Term as the number of payments, # a monthly interest factor equal to eight and one-half percent (8.5%) per annum divided by twelve (12) months per year, and # the Additional TI Allowance Payment as the missing component of the annuity. Following the calculation of the Additional TI Allowance Payment, Landlord and Tenant will enter into a lease amendment to confirm the amount thereof. Any portion of the Tenant Improvement Allowance as to which Tenant has not properly requested disbursement by the Allowance Deadline, shall revert to Landlord and Tenant shall have no further rights with respect thereto. The Additional TI Allowance Payment shall not be subject to annual Base Rent increases.

TI Allowance. Landlord shall provide to Tenant a tenant improvement allowance (“TI Allowance”) of $110 per rentable square foot of the Premises, or $19,451,520 in the aggregate (based on the Premises containing 176,832 rentable square feet and subject to adjustment upon remeasurement of the Premises as provided in the Lease). The TI Allowance shall be disbursed in accordance with this Work Letter. Tenant shall have no right to any portion of the TI Allowance that is not requested before the last day of the month that is 24 months after the Lease

Tenant Improvement Allowance. Tenant shall be entitled to a one‑time tenant improvement allowance (the “Tenant Improvement Allowance”) in the amount of up to, but not exceeding Two Hundred Thirty Dollars ($230.00) per rentable square foot of the Premises (i.e., up to Five Million, Four Hundred Fifty Thousand, Eighty Dollars ($5,450,080.00), for the costs relating to the initial design and construction of Tenant’s improvements which are permanently affixed to the Premises, including without limitation, power distribution (the “Tenant Improvements”); provided, however, Landlord shall have no obligation to disburse all or any portion of the Tenant Improvement Allowance to Tenant unless Tenant makes one or more requests for disbursement pursuant to the terms and conditions of Section 2.2 below prior to the second anniversary of the Delivery Date. In addition, Tenant shall, by written notice given to Landlord (the “Allowance Increase Notice”) given no later than thirty (30) days after the Final Costs are determined in accordance with Section 4.2.1 below, have the one-time right to increase the amount of the Tenant Improvement Allowance by an amount not to exceed Five Hundred Ninety-Two Thousand, Four Hundred Dollars ($592,400.00) (i.e., $25.00 per rentable square foot of the Premises) (the “Additional Allowance”). The Additional Allowance, if and to the extent elected by Tenant, shall be added to the Tenant Improvement Allowance and used on the terms and conditions set forth herein with respect to the Tenant Improvement Allowance (and the

Tenant Improvements. On June 1, 2028, Landlord shall provide Tenant with a tenant improvement allowance (the “TI Allowance”) of $821,448.00 ($6.00 x 136,908 usable square feet) for tenant improvements (the “Tenant Improvements”) to be made by Landlord to the Premises. The Parties shall exert good faith, commercially reasonable efforts to agree on the Tenant Improvements and a budget therefor. Such agreed on Tenant Improvements shall then be made by Landlord in accordance with such budget as soon as reasonably practicable after such agreement. Tenant shall pay to Landlord all costs and expenses incurred by Landlord in connection with the Tenant Improvements, less the TI Allowance, within thirty (30) days after the date of an invoice therefor, which invoice may be delivered prior to the commencement of construction. If all or any portion of the TI Allowance is not used on or before May 31, 2029, the TI Allowance or such portion that is not used shall be lost and shall no longer be available to Tenant.

Additional Tenant Improvement Allowance. In addition to the Tenant Improvement Allowance and the Warm Shell Allowance (as such terms are defined in the Work Letter), Landlord shall, subject to the terms of the Work Letter, make available to Tenant the Additional Tenant Improvement Allowance (as defined in the Work Letter). Commencing on the Rent Commencement Date and continuing thereafter on the first day of each month during the Base Term, Tenant shall pay the amount necessary to fully amortize the portion of the Additional Tenant Improvement Allowance actually funded by Landlord, if any, in equal monthly payments with interest at a rate of 7% per annum over the Base Term, which interest shall begin to accrue on the date that Landlord first disburses such Additional Tenant Improvement Allowance or any portion(s) thereof (“TI Rent”). Any TI Rent remaining unpaid as of the expiration or earlier termination of this Lease shall be paid to Landlord in a lump sum at the expiration or earlier termination of this Lease.

In addition to the Tenant Improvement Allowance (as defined in the Work Letter), Landlord shall, subject to the terms of the Work Letter, make available to Tenant the Additional Tenant Improvement Allowance (as defined in the Work Letter). Commencing on the Rent Commencement Date and continuing thereafter on the first day of each month during the Base Term, Tenant shall pay the amount necessary to fully amortize the portion of the Additional Tenant Improvement Allowance elected to be used by Tenant and actually funded by Landlord, if any, in equal monthly payments with interest at a rate of 8% per annum over the Base Term, which interest shall begin to accrue on the date that Landlord first disburses such Additional Tenant Improvement Allowance or any portion(s) thereof (“TI Rent”). Any TI Rent remaining unpaid as of the expiration or earlier termination of this Lease shall be paid to Landlord in a lump sum at the expiration or earlier termination of this Lease. Tenant shall have no obligation to accept the Additional Tenant Improvement Allowance.

Additional Tenant Improvement Allowance; Increased Base Rent. Tenant shall be entitled, pursuant to a written notice delivered to Landlord by email by not later than December 20, 2017, time being of the essence, to a one-time improvement allowance (the "Additional Tenant Improvement Allowance") in an amount not to exceed Four Hundred Thousand Dollars ($400,000.00) for additional tenant improvements selected by Tenant and approved by Landlord, each of which shall be constructed by Landlord within the Premises. If Tenant exercises its right to use all or any portion of the Additional Tenant Improvement Allowance, then the monthly Base Rent for the Premises shall be increased during each month of the Lease Term by an amount equal to the Additional Monthly Base Rent (defined below), to repay such Additional Tenant Improvement Allowance to Landlord. The "Additional Monthly Base Rent" shall be calculated as follows: the Additional Tenant Improvement Allowance actually expended by Landlord shall be amortized over the Lease Term using an 8.5% annual interest rate. For example, if the Additional Tenant Improvement Allowance is $200,000, then the Base Rent shall be increased by $3,555.68 per month for each month of the Lease Term, commencing on the Lease Commencement Date, as shown by the calculations on Schedule “2” attached hereto. The rent abatement provisions in the Lease shall not apply to the Additional Monthly Base Rent.

Additional TI Allowance. In addition to the Tenant Improvement Allowance (as defined in the Work Letter), Landlord shall, subject to the terms of the Work Letter, make available to Tenant the Additional Tenant Improvement Allowance (as defined in the Work Letter). Commencing on the Rent Commencement Date and continuing thereafter on the first day of each month during the Base Term, Tenant shall pay the amount necessary to fully amortize the portion of the Additional Tenant Improvement Allowance actually funded by Landlord, if any, in equal monthly payments with interest at a rate of ​ per annum over the Base Term, which interest shall begin to accrue on the date that Landlord first disburses such Additional Tenant Improvement Allowance or any portion(s) thereof (“TI Rent”). Any TI Rent remaining unpaid as of the expiration or earlier termination of this Lease shall be paid to Landlord in a lump sum at the expiration or earlier termination of this Lease.

Additional TI Allowance. In addition to the Tenant Improvement Allowance (as defined in the Work Letter), Landlord shall, subject to the terms of the Work Letter, make available to Tenant the Additional Tenant Improvement Allowance. Commencing on the Rent Commencement Date and continuing thereafter on the first day of each month during the Base Term, Tenant shall pay the amount necessary to fully amortize the portion of the Additional Tenant Improvement Allowance actually funded by Landlord, if any, in equal monthly payments with interest at a rate of % per annum over the Base Term, which interest shall begin to accrue on the date that Landlord first disburses such Additional Tenant Improvement Allowance or any portion(s) thereof (“TI Rent”). In the event that the Additional TI Allowance is disbursed in tranches, interest shall begin to accrue on the amount of each tranche on the date that such tranche is disbursed. The TI Rent shall not be subject to the annual adjustments pursuant to Section 4(a) above. If any portion of the Additional Tenant Improvement Allowance is, subject to the terms of the Work Letter, funded by Landlord after the Rent Commencement Date, the monthly amount of TI Rent payable by Tenant shall be adjustment in order to fully amortize the amounts funded after the Rent Commencement Date in equal monthly payments with interest at a rate of % per annum over the remaining Base Term. Tenant shall have the right, any time after the month after the Rent Commencement Date, to prepay in full the then outstanding and unamortized TI Rent, without penalty. Any TI Rent remaining unpaid as of the expiration or earlier termination of this Lease shall be paid to Landlord in a lump sum at the expiration or earlier termination of this Lease.

TI Allowance. Landlord shall provide to Tenant a tenant improvement allowance (the “TI Allowance”) in the maximum amount of $235.00 per rentable square foot in the Premises, which is included in the Base Rent set forth in the Lease.

Date, Tenant shall be entitled, pursuant to a written notice delivered to Landlord, to a one-time increase (the "Additional Improvement Allowance") of the Improvement Allowance in an amount not to exceed $2,399,925.00 (i.e., $25.00 per rentable square foot of the Premises), for the costs relating to the initial design and construction of the Improvements. In the event Tenant exercises its right to use all or any portion of the Additional Improvement Allowance, the monthly Base Rent for the Premises shall be increased by an amount equal to the "Additional Monthly Base Rent," as that term is defined below, in order to repay the Additional Improvement Allowance to Landlord. The "Additional Monthly Base Rent" shall be determined as the missing component of an annuity, which annuity shall have (i) the amount of the Additional Improvement Allowance which Tenant elects to utilize as the present value amount, (ii) the number of months of the Lease Term as the number of payments, (iii) 0.67%, which is equal to 8% divided by twelve (12) months per year, as the monthly interest factor and (iv) the Additional Monthly Base Rent as the missing component of the annuity. In the event Tenant elects to utilize all or a portion of the Additional Improvement Allowance, then (a) all references in this Work Letter to the "Improvement Allowance", shall be deemed to include the Additional Improvement Allowance which Tenant elects to utilize, (b) the parties shall promptly execute an amendment (to this Lease setting forth the new amount of the Base Rent and Improvement Allowance computed in accordance with this Section 3.3, (c) Tenant shall deposit with Landlord, concurrently with Tenant's execution and delivery of the amendment to Landlord, cash in an amount equal to the Additional Monthly Base Rent, which amount shall be held as part of the Security Deposit, and the amendment shall contain the new amount of the Security Deposit, and (d) the additional amount of monthly Base Rent owing in accordance with this Section 3.3 for the first full month of the Lease Term shall be paid by Tenant to Landlord at the time of Tenant's execution of the amendment.