Tenant Improvement Allowance shall be deemed to have been increased accordingly). If Tenant gives the Allowance Increase Notice, Tenant shall repay the amount of the Additional Allowance used by Tenant to Landlord in equal monthly installments determined by amortizing the amount of the Additional Allowance used by Teannt over the remainder of the initial term of the Lease (excluding any Abatement Period and annual rent increases), together with interest at eight percent (8%) per annum (such monthly payments, the “Supplemental Base Rent”), on the first calendar day of each month commencing on the Rent Commencement Date and continuing thereafter during the initial Lease Term with Tenant’s regular payments of Base Rent (and if requested by either Landlord or Tenant, the parties shall enter into an amendment to the Lease to confirm the same promptly following the giving of the Additional Allowance Notice). Landlord agrees that such Additional Allowance may be repaid or prepaid, but only in whole upon at least ten (10) days prior written notice given by Tenant to Landlord, at any time during the Lease Term without penalty, and, in such event, the parties shall enter into an amendment to the Lease to confirm the same promptly following such prepayment. In no event shall Landlord be obligated to make disbursements pursuant to this Tenant Work Letter in a total amount which exceeds the Tenant Improvement Allowance (as increased by any Additional Allowance). Any unused portion of the Tenant Improvement Allowance shall belong to Landlord. Tenant shall be solely liable for all costs associated with the design and construction of the Tenant Improvements in excess of the Tenant Improvement Allowance (as increased by any Additional 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 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 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 first day immediately following the expiration of the Abatement Period 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 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.

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 (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 later of the Rent Commencement Date and 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 the Lease resulting from a Default by Tenant under this Lease shall be paid to Landlord in a lump sum at the expiration or earlier termination of this Lease. TI Rent shall not be subject to annual adjustments pursuant to [Section 4(a)].

Improvement Allowance And Additional Allowance. Tenant shall be entitled to a one-time improvement allowance (the "Improvement Allowance") in the amount set forth in Section 13 of the Summary for the costs relating to the initial design and construction of the improvements (the "Improvements"). Notwithstanding anything above to the contrary, in the event there exists an Over-Allowance Amount (as defined in [Section 4.2.1] below), Tenant shall have the option, exercisable upon written notice to Landlord prior to the date Tenant is obligated to pay such Over-Allowance Amount, to receive an allowance (the "Additional Allowance") in the amount not to exceed Thirty-Five Dollars ($35.00) per rentable square foot of the Premises. In the event Tenant exercises such option and as consideration for Landlord providing such Additional Allowance to Tenant, the Base Rent payable by Tenant throughout the entire one hundred forty-four (144) month initial Lease Term ("Amortization Period") shall be increased by an amount sufficient to fully amortize such Additional Allowance throughout said one hundred forty-four (144) month period based upon monthly payments of principal and interest, with interest imputed on the outstanding principal balance at the rate of eight percent (8%) per annum (the "Amortization Rent"). In such event, Section 4 of the Summary shall be revised to reflect such increased Base Rent for all time periods under this Lease. Such revised Base Rent schedule shall be memorialized in an amendment to this Lease to be executed by Landlord and Tenant. In the event the Lease shall terminate as a result of a default by Tenant under the terms of the Lease or this Work Letter, Tenant acknowledges and agrees that the unamortized balance of the Additional Allowance which has not been paid by Tenant to Landlord as of the termination date pursuant to the foregoing provisions of this Section 2.1, shall become immediately due and payable as unpaid

Tenant Improvement Allowance. Tenant shall be entitled to a one-time tenant improvement allowance (the "Tenant Improvement Allowance") in the amount set forth in Section 5 of the Summary for the costs relating to the initial design and construction of Tenant's improvements (the "Tenant Improvements"). In no event shall Landlord be obligated to make disbursements pursuant to this Tenant Work Letter in a total amount which exceeds the Tenant Improvement Allowance. In the event that the Tenant Improvement Allowance is not fully utilized by Tenant on or before the date that occurs eighteen (18) months following the Lease Commencement Date (as deadline date may be extended by Force Majeure and/or Landlord Delay occurring after the Lease Commencement Date), then such unused amounts shall revert to Landlord, and Tenant shall have no further rights with respect thereto. Any Tenant Improvements that require the use of Building risers, raceways, shafts and/or conduits, shall be subject to Landlord's reasonable rules, regulations, and restrictions, including the requirement that any riser cabling vendor must be selected from a list provided by Landlord, and that the amount and location of any such cabling must be approved by Landlord. All Tenant Improvements for which the Tenant Improvement Allowance has been made available shall be deemed Landlord's property under the terms of the Lease. Tenant shall not be required to remove any Tenant Improvements upon Tenant’s surrender of the Premises.

Additional Allowance. Tenant shall, by written notice given to Landlord no later than the Cost Proposal Delivery Date (as defined below), have the one-time right to increase the amount of the Tenant Improvements Allowance by an amount not to exceed $161,020.00 (i.e., $20.00 per rentable square foot of the Premises) (the “Additional Allowance”). The Additional Allowance, if elected by Tenant, shall be added to the Tenant Improvements Allowance and utilized on the terms and conditions set forth herein with respect to the Tenant Improvements Allowance (and the Maximum Allowance Amount shall be deemed to have been increased accordingly). If Tenant gives the Allowance Increase Notice, Tenant shall repay the Additional Allowance to Landlord in equal monthly installments determined by amortizing the Additional Allowance over the remainder of the initial term of the Lease, together with interest at eight percent (8%) per annum (such monthly payments, the “Supplemental Rent”), on the first calendar day of each month commencing on the Rent Commencement Date and continuing thereafter during the remainder of the initial term of the Lease with Tenant’s regular payments of Base Rent (and the parties shall enter into an amendment to the Lease to confirm the same promptly following the giving of the Additional Allowance Notice).

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.

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.