Document:

EX-10.16

 Exhibit 10.16 

LEASE 
 BETWEEN 

LJ GATEWAY OFFICE LLC 

AND 
 TUSIMPLE LLC

  

 LEASE 

(Short Form) 
 THIS LEASE
is made as of December 16, 2016, by and between LJ GATEWAY OFFICE LLC, a Delaware limited liability company, hereafter called “Landlord,” and TUSIMPLE LLC, a California limited liability company, hereafter called
“Tenant.” 
 ARTICLE 1. BASIC LEASE PROVISIONS 

Each reference in this Lease to the “Basic Lease Provisions” shall mean and refer to the following collective terms, the
application of which shall be governed by the provisions in the remaining Articles of this Lease. 
  

	1.	 Tenant’s Trade Name: N/A 

 

	2.	 Premises:
                   Suite No. 600 

Address of Building: 9191 Towne Centre Drive, San Diego, CA 92122 

Project Description:  La Jolla Gateway 

(The Premises are more particularly described in Section 2.1). 
  

	3.	 Use of Premises: General office and for no other use. 

 

	4.	 Estimated Commencement Date: March 1,2017 

 

	5.	 Lease Term: 24 months, plus such additional days as may be required to cause this Lease to expire on the
final day of the calendar month. 

  

	6.	 Basic Rent: 

  

									
	 Months of Term

or Period
	  	Monthly Rate Per Rentable
Square Foot	 	  	Monthly Basic Rent (rounded to
the nearest dollar)	 
	 1 to 12
	  	$	3.10	 	  	$	34,636.00	 
	 13 to 24
	  	$	3.24	 	  	$	36,201.00	 

 Notwithstanding the above schedule of Basic Rent to the contrary, as long as Tenant is not in Default (as
defined in Section 14.1) under this Lease, Tenant shall be entitled to an abatement of $22,569.00 of Basic Rent (the “Abated Basic Rent”) towards the first full calendar month of the Term (the “Abatement
Period”). In the event Tenant Defaults at any time during the Term, all Abated Basic Rent shall immediately become due and payable. The payment by Tenant of the Abated Basic Rent in the event of a Default shall not limit or
affect any of Landlord’s other rights, pursuant to this Lease or at law or in equity. Only Basic Rent shall be abated during the Abatement Period and all other additional rent and other costs and charges specified in this Lease shall remain as
due and payable pursuant to the provisions of this Lease. 
  

	7.	 Property Tax Base: The Property Taxes per rentable square foot incurred by Landlord and
attributable to the twelve month period ending June 30, 2017 (the “Base Year”). 

 Project
Cost Base: The Project Costs per rentable square foot incurred by Landlord and attributable to the Base Year. 
 Expense
Recovery Period: Every twelve month period during the Term (or portion thereof during the first and last Lease years) ending June 30. 
  

	8.	 Floor Area of Premises: approximately 11,173 rentable square feet (Landlord and Tenant
stipulate and agree that the Floor Area of Premises is correct). 

 Floor Area of Building:
approximately 181,317 rentable square feet 
  

	9.	 Security Deposit: $74,457.00, as further described in Section 4.3

 Guarantor: Xiaodi Hou, an individual. Concurrent with Tenant’s execution and delivery of this
Lease, Tenant shall cause the Guarantor to execute and deliver a guarantee in favor of Landlord on a form provided by Landlord. 
  

	10.	 Broker(s): Irvine Realty Company (“Landlord’s Broker”)
is the agent of Landlord exclusively and The Irving Group (“Tenant’s Broker”) is the agent of Tenant exclusively. 

  

	11.	 Parking: 39 parking passes in accordance with the provisions set forth in Exhibit F
to this Lease. 

  

					
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	12.	 Address for Payments and Notices: 

 

			
	LANDLORD	  	TENANT
		
	Payment Address:	  	 TUSIMPLE LLC
 9191 Towne Centre Drive, Suite
600

	LJ GATEWAY OFFICE LLC	  	San Diego, CA 92122
	 PO Box #846785
 Los Angeles, CA
90084-6785
	  	Attn: Xiaodi Hou

 Notice Address: 

LJ GATEWAY OFFICE LLC 
 9191 Towne
Center Drive, Suite 125 
 San Diego, CA, 92122 

Attn: Building Manager 
 with a
copy of notices to: 
 THE IRVINE COMPANY LLC 

550 Newport Center Drive 
 Newport
Beach, CA 92660 
 Attn: Senior Vice President, Property Operations 

         Irvine Office Properties 

 

	13.	 List of Lease Exhibits (all exhibits, riders and addenda attached to this Lease are hereby incorporated
into and made a part of this Lease): 

  

			
	Exhibit A	  	Description of Premises
	Exhibit B	  	Operating Expenses
	Exhibit C	  	Utilities and Services
	Exhibit D	  	Tenant’s Insurance
	Exhibit E	  	Rules and Regulations
	Exhibit F	  	Parking
	Exhibit G	  	Additional Provisions
	Exhibit X	  	Work Letter

  

					
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 ARTICLE 2. PREMISES 

2.1. LEASED PREMISES. Landlord leases to Tenant and Tenant leases from Landlord the Premises shown in Exhibit A (the
“Premises”), containing approximately the floor area set forth in Item 8 of the Basic Lease Provisions (the “Floor Area”). The Premises are located in the building identified in Item 2 of the Basic
Lease Provisions (the “Building”), which is a portion of the project described in Item 2 (the “Project”). 

2.2. ACCEPTANCE OF PREMISES. Tenant acknowledges that neither Landlord nor any representative of Landlord has made any representation or
warranty with respect to the Premises, the Building or the Project or the suitability or fitness of either for any purpose, except as set forth in this Lease. The taking of possession or use of the Premises by Tenant for any purpose other than
construction shall conclusively establish that the Premises and the Building were in satisfactory condition and in conformity with the provisions of this Lease in all respects. Nothing contained in this Section 2.2 shall affect the commencement
of the Term or the obligation of Tenant to pay rent. 
 ARTICLE 3. TERM 

3.1. GENERAL. The term of this Lease (“Term”) shall be for the period shown in Item 5 of the Basic Lease Provisions.
The Term shall commence (“Commencement Date”) on the earlier of (a) the date the Premises are deemed “ready for occupancy” (as hereinafter defined) and possession thereof is delivered to Tenant, or
(b) the date Tenant commences its regular business activities within the Premises. Promptly following request by Landlord, the parties shall memorialize on a form provided by Landlord (the “Commencement Memorandum”) the
actual Commencement Date and the expiration date (“Expiration Date”) of this Lease; should Tenant fail to execute and return the Commencement Memorandum to Landlord within 5 business days (or provide specific written
objections thereto within that period), then Landlord’s determination of the Commencement and Expiration Dates as set forth in the Commencement Memorandum shall be conclusive. The Premises shall be deemed “ready for occupancy”
when Landlord, to the extent applicable, has substantially completed all the work required to be completed by Landlord pursuant to the Work Letter attached to this Lease but for minor punch list matters, and has obtained the requisite
governmental approvals for Tenant’s occupancy in connection with such work. 
 3.2. DELAY IN POSSESSION. If Landlord, for any
reason whatsoever, cannot deliver possession of the Premises to Tenant on or before the Estimated Commencement Date set forth in Item 4 of the Basic Lease Provisions, this Lease shall not be void or voidable nor shall Landlord be liable to Tenant
for any resulting loss or damage. However, Tenant shall not be liable for any rent until the Commencement Date occurs as provided in Section 3.1 above, except that if Landlord’s failure to substantially complete all work required of
Landlord pursuant to Section 3.1 above is attributable to any action or inaction by Tenant (including without limitation any Tenant Delay described in the Work Letter attached to this Lease), then the Premises shall be deemed ready for
occupancy, and Landlord shall be entitled to full performance by Tenant (including the payment of rent), as of the date Landlord would have been able to substantially complete such work and deliver the Premises to Tenant but for Tenant’s
delay(s). 
 ARTICLE 4. RENT AND OPERATING EXPENSES 

4.1. BASIC RENT. From and after the Commencement Date, Tenant shall pay to Landlord without deduction or offset a Basic Rent for the
Premises in the total amount shown (including subsequent adjustments, if any) in Item 6 of the Basic Lease Provisions (the “Basic Rent”). If the Commencement Date is other than the first day of a calendar month, any rental
adjustment shown in Item 6 shall be deemed to occur on the first day of the next calendar month following the specified monthly anniversary of the Commencement Date. The Basic Rent shall be due and payable in advance commencing on the Commencement
Date and continuing thereafter on the first day of each successive calendar month of the Term, as prorated for any partial month. No demand, notice or invoice shall be required. An installment in the amount of 1 full month’s Basic Rent at the
initial rate specified in Item 6 of the Basic Lease Provisions shall be delivered to Landlord concurrently with Tenant’s execution of this Lease. 

4.2. OPERATING EXPENSES. Tenant shall pay Tenant’s Share of Operating Expenses in accordance with Exhibit B of this Lease.

 4.3. SECURITY DEPOSIT. Concurrently with Tenant’s delivery of this Lease, Tenant shall deposit with Landlord the sum, if any,
stated in Item 9 of the Basic Lease Provisions (the “Security Deposit”), to be held by Landlord as security for the full and faithful performance of Tenant’s obligations under this Lease, to pay any rental sums,
including without limitation such additional rent as may be owing under any provision hereof, and to maintain the Premises as required by this Lease. Upon any breach of the foregoing obligations by Tenant, Landlord may apply all or part of the
Security Deposit as full or partial compensation. If any portion of the Security Deposit is so applied, Tenant shall within 5 days after written demand by Landlord deposit cash with Landlord in an amount sufficient to restore the Security Deposit to
its original amount. Landlord shall not be required to keep this Security Deposit separate from its general funds, and Tenant shall not be entitled to interest on the Security Deposit. In no event may Tenant utilize all or any portion of the
Security Deposit as a payment toward any rental sum due under this Lease. Any unapplied balance of the Security Deposit shall be returned to Tenant or, at Landlord’s option, to the last assignee of Tenant’s interest in this Lease within 30
days following the termination of this Lease and Tenant’s vacation of the Premises. Tenant hereby waives the provisions of Section 1950.7 of the California Civil Code, or any similar or successor laws now or hereafter in effect. 

ARTICLE 5. USES 
 5.1.
USE. Tenant shall use the Premises only for the purposes stated in Item 3 of the Basic Lease Provisions and for no other use whatsoever. Tenant shall not do or permit anything to be done in or about the Premises which will in any way interfere
with the rights or quiet enjoyment of other occupants of the Building or the Project, or use or allow the Premises to be used for any unlawful purpose, nor shall Tenant permit any nuisance in the Premises or the Project. Tenant shall comply at its
expense with all present and future laws, ordinances and requirements of all governmental authorities that pertain to Tenant or its use of the Premises, and with all energy usage reporting requirements of Landlord. As of the date of this Lease,
there has been no inspection of the Building and Project by a Certified Access Specialist as referenced in Section 1938 of the California Civil Code. 

  

					
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 5.2. SIGNS. Landlord shall affix and maintain a sign (restricted solely to
Tenant’s name as set forth herein or such other name as Landlord may consent to in writing) adjacent to the entry door of the Premises, together with a directory strip listing Tenant’s name as set forth herein in the lobby directory of the
Building. Tenant shall not place or allow to be placed any other sign, decoration or advertising matter of any kind that is visible from the exterior of the Premises. 

5.3 HAZARDOUS MATERIALS. Tenant shall not generate, handle, store or dispose of hazardous or toxic materials (as such materials may be
identified in any federal, state or local law or regulation) in the Premises or Project without the prior written consent of Landlord. Tenant acknowledges that it has read, understands and, if applicable, shall comply with the provisions of
Exhibit H to this Lease, if that Exhibit is attached. 
 ARTICLE 6. LANDLORD SERVICES 

6.1. UTILITIES AND SERVICES. Landlord and Tenant shall be responsible to furnish those utilities and services to the Premises to the
extent provided in Exhibit C, subject to the conditions and payment obligations and standards set forth in this Lease. Landlord’s failure to furnish, or any interruption, diminishment or termination of, services due to the application of
laws, the failure of any equipment, the performance of repairs, improvements or alterations, utility interruptions or the occurrence of an event of force majeure (defined in Section 20.8) shall not render Landlord liable to Tenant, constitute a
constructive eviction of Tenant, give rise to an abatement of Rent, nor relieve Tenant from the obligation to fulfill any covenant or agreement. 

6.2. OPERATION AND MAINTENANCE OF COMMON AREAS. During the Term, Landlord shall operate all Common Areas within the Building and the
Project. The term “Common Areas” shall mean all areas within the Building, Project and other buildings in the Project which are not held for exclusive use by persons entitled to occupy space. 

6.3. USE OF COMMON AREAS. The occupancy by Tenant of the Premises shall include the use of the Common Areas in common with Landlord and
with all others for whose convenience and use the Common Areas may be provided by Landlord, subject, however, to compliance with Rules and Regulations described in Article 17 below. Landlord shall at all times during the Term have exclusive control
of the Common Areas, and may restrain or permit any use or occupancy. Landlord may temporarily close any portion of the Common Areas for repairs, remodeling and/or alterations, to prevent a public dedication or the accrual of prescriptive rights, or
for any other reasonable purpose. 
 ARTICLE 7. REPAIRS AND MAINTENANCE 

7.1. TENANT’S MAINTENANCE AND REPAIR. Subject to Articles 11 and 12, Tenant at its sole expense shall make all repairs necessary
to keep the Premises and all improvements and fixtures therein in good condition and repair, excepting ordinary wear and tear. Tenant’s maintenance obligation shall include without limitation all appliances, interior glass, doors, door
closures, hardware, fixtures, electrical, plumbing, fire extinguisher equipment and other equipment installed in the Premises, together with any supplemental HVAC equipment servicing only the Premises. Should Landlord or its management agent agree
to make a repair on behalf of Tenant and at Tenant’s request, Tenant shall promptly reimburse Landlord as additional rent for all reasonable costs incurred (including the standard supervision fee) upon submission of an invoice. 

7.2. LANDLORD’S MAINTENANCE AND REPAIR. Subject to Articles 11 and 12, Landlord shall provide service, maintenance and repair with
respect to the heating, ventilating and air conditioning (“HVAC”) equipment of the Building (exclusive of any supplemental HVAC equipment servicing only the Premises) and shall maintain in good repair the Common Areas, roof,
foundations, footings, the exterior surfaces of the exterior walls of the Building (including exterior glass), and the structural, electrical, mechanical and plumbing systems of the Building (including elevators, if any, serving the Building),
except to the extent provided in Section 7.1 above. Notwithstanding any provision of the California Civil Code or any similar or successor laws to the contrary, Tenant understands that it shall not make repairs at Landlord’s expense or by
rental offset. Except as provided in Section 11.1 and Article 12 below, there shall be no abatement of rent and no liability of Landlord by reason of any injury to or interference with Tenant’s business arising from the making of any
repairs, alterations or improvements to any portion of the Building, including repairs to the Premises, nor shall any related activity by Landlord constitute an actual or constructive eviction. Tenant hereby waives any and all rights under and
benefits of subsection 1 of Section 1932, and Sections 1941 and 1942 of the California Civil Code, or any similar or successor laws now or hereafter in effect. 

7.3. ALTERATIONS. Tenant shall make no alterations, additions, decorations, or improvements (collectively referred to as
“Alterations”) to the Premises without the prior written consent of Landlord. Landlord may impose, as a condition to its consent, any requirements that Landlord in its discretion may deem reasonable or desirable. Tenant shall use
Landlord’s designated mechanical and electrical contractors, obtain all required permits for the Alterations and shall perform the work in compliance with all applicable laws, regulations and ordinances with contractors reasonably acceptable to
Landlord. Landlord shall be entitled to a supervision fee in the amount of 5% of the cost of the Alterations. Landlord may elect to cause its architect to review Tenant’s architectural plans, and the reasonable cost of that review shall be
reimbursed by Tenant. Should the Alterations proposed by Tenant and consented to by Landlord change the floor plan of the Premises, then Tenant shall, at its expense, furnish Landlord with as-built drawings
and CAD disks compatible with Landlord’s systems. Unless Landlord otherwise agrees in writing, all Alterations affixed to the Premises, including without limitation all Tenant Improvements constructed pursuant to the Work Letter (except as
otherwise provided in the Work Letter), but excluding moveable trade fixtures and furniture, shall become the property of Landlord and shall be surrendered with the Premises at the end of the Term, except that Landlord may, by notice to Tenant given
at least 30 days prior to the Expiration Date, require Tenant to remove by the Expiration Date, or sooner termination date of this Lease, all or any Alterations (including without limitation all telephone and data cabling) installed either by Tenant
or by Landlord at Tenant’s request (collectively, the “Required Removables”). In connection with its removal of Required Removables, Tenant shall repair any damage to the Premises arising from that removal and shall restore the
affected area to its pre-existing condition, reasonable wear and tear excepted. 
 7.4.
MECHANIC’S LIENS. Tenant shall keep the Premises free from any liens arising out of any work performed, materials furnished, or obligations incurred by or for Tenant. In the event that Tenant shall not, within 15 days following the
imposition of any lien, cause the lien to be released of record by payment or posting of a proper bond in accordance with California Civil Code Section 8424 or any successor statute, Landlord shall have, in addition to all other available 

  

					
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 remedies, the right to cause the lien to be released by any means it deems proper, including payment of or
defense against the claim giving rise to the lien. All expenses so incurred by Landlord shall be reimbursed by Tenant promptly following Landlord’s demand. Tenant shall give Landlord no less than 20 days’ prior notice in writing before
commencing construction of any kind on the Premises. 
 7.5. ENTRY AND INSPECTION. Landlord shall at all reasonable times and with
reasonable prior verbal notice, except in emergencies or to provide Building services, have the right to enter the Premises to inspect them, to supply services in accordance with this Lease, to make repairs and renovations as reasonably deemed
necessary by Landlord, and to submit the Premises to prospective or actual purchasers or encumbrance holders (or, during the final twelve months of the Term or when an uncured Default exists, to prospective tenants), all without being deemed to have
caused an eviction of Tenant and without abatement of rent except as provided elsewhere in this Lease. 
 ARTICLE 8. SPACE PLANNING AND
SUBSTITUTION 
 Landlord shall have the right, upon providing not less than 45 days written notice, to move Tenant to other space of
comparable size in the Building or in the Project. The new space shall be provided with improvements of comparable quality to those within the Premises. Landlord shall pay the reasonable out-of-pocket costs to relocate and reconnect Tenant’s personal property and equipment within the new space. Landlord shall also reimburse Tenant for such other reasonable
out-of-pocket costs that Tenant may incur in connection with the relocation. Within 10 days following request by Landlord, Tenant shall execute an amendment to this
Lease prepared by Landlord to memorialize the relocation. 
 ARTICLE 9. ASSIGNMENT AND SUBLETTING 

9.1. RIGHTS OF PARTIES. Tenant shall not, directly or indirectly, assign, sublease, transfer or encumber any interest in this Lease or
allow any third party to use any portion of the Premises (collectively or individually, a “Transfer”) without the prior written consent of Landlord, which consent shall not be unreasonably withheld if Landlord does not exercise its
recapture rights. Tenant agrees that it is not unreasonable for Landlord to withhold consent to a Transfer to a proposed assignee or subtenant who is an existing tenant or occupant of the Building or Project or to a prospective tenant with whom
Landlord or Landlord’s affiliate has been actively negotiating. Within 30 days after receipt of executed copies of the transfer documentation and such other information as Landlord may request, Landlord shall either: (a) consent to the
Transfer by execution of a consent agreement in a form reasonably designated by Landlord; (b) refuse to consent to the Transfer; or (c) recapture the portion of the Premises that Tenant is proposing to Transfer. Tenant hereby waives the
provisions of Section 1995.310 of the California Civil Code, or any similar or successor Laws, now or hereinafter in effect, and all other remedies, including, without limitation, any right at law or equity to terminate this Lease, on its own
behalf and, to the extent permitted under all applicable laws, on behalf of the proposed transferee. In no event shall any Transfer release or relieve Tenant from any obligation under this Lease, as same may be amended. Tenant shall pay Landlord a
review fee of $1,000.00 for Landlord’s review of any requested Transfer. Tenant shall pay Landlord, as additional Rent, 50% of all rent and other consideration which Tenant receives as a result of a Transfer that is in excess of the Rent
payable to Landlord for the portion of the Premises and Term covered by the Transfer. If Tenant is in Default, Landlord may require that all sublease payments be made directly to Landlord, in which case Tenant shall receive a credit against Rent in
the amount of Tenant’s share of payments received by Landlord. 
 9.2. PERMITTED TRANSFER. Notwithstanding the foregoing, Tenant
may assign this Lease to a successor to Tenant by merger, consolidation or the purchase of substantially all of Tenant’s assets, or assign this Lease or sublet all or a portion of the Premises to an Affiliate (defined below), without the
consent of Landlord, provided that all of the following conditions are satisfied (a “Permitted Transfer”): (i) Tenant is not then in Default hereunder; (ii) Tenant gives Landlord written notice prior to such Permitted Transfer;
and (iii) the successor entity resulting from any merger or consolidation of Tenant or the sale of all or substantially all of the assets of Tenant, has a net worth at the time of the Permitted Transfer that is at least equal to the net worth
of Tenant immediately before the Permitted Transfer. “Affiliate” shall mean an entity controlled by, controlling or under common control with Tenant. 

ARTICLE 10. INSURANCE AND INDEMNITY 

10.1. TENANT’S INSURANCE. Tenant, at its sole cost and expense, shall provide and maintain in effect the insurance described in
Exhibit D. Evidence of that insurance must be delivered to Landlord prior to the Commencement Date. 
 10.2. TENANT’S
INDEMNITY. To the fullest extent permitted by law, but subject to Section 10.4 below, Tenant shall defend, indemnify and hold harmless Landlord and Landlord’s agents, employees, lenders, and affiliates, from and against any and all
negligence, claims, liabilities, damages, costs or expenses arising either before or after the Commencement Date which arise from or are caused by Tenant’s use or occupancy of the Premises, the Building or the Common Areas of the Project, or
from the conduct of Tenant’s business, or from any activity, work, or thing done, permitted or suffered by Tenant or Tenant’s agents, employees, subtenants, vendors, contractors, invitees or licensees in or about the Premises, the Building
or the Common Areas of the Project, or from any Default in the performance of any obligation on Tenant’s part to be performed under this Lease, or from any act, omission or negligence on the part of Tenant or Tenant’s agents, employees,
subtenants, vendors, contractors, invitees or licensees. Landlord may, at its option, require Tenant to assume Landlord’s defense in any action covered by this Section 10.2 through counsel reasonably satisfactory to Landlord.
Notwithstanding the foregoing, Tenant shall not be obligated to indemnify Landlord against any liability or expense to the extent it is ultimately determined that the same was caused by the sole negligence or willful misconduct of Landlord, its
agents, contractors or employees. 
 10.3. LANDLORD’S NONLIABILITY. Landlord shall not be liable to Tenant, its employees, agents
and invitees, and Tenant hereby waives all claims against Landlord, its employees and agents for loss of or damage to any property, or any injury to any person, resulting from any condition including, but not limited to, acts or omissions (criminal
or otherwise) of third parties and/or other tenants of the Project, or their agents, employees or invitees, fire, explosion, falling plaster, steam, gas, electricity, water or rain which may leak or flow from or into any part of the Premises or from
the breakage, leakage, obstruction or other defects of the pipes, sprinklers, wires, appliances, plumbing, air conditioning, electrical works or other fixtures in the Building, whether the damage or injury results from conditions arising in the
Premises or in other portions of the Building, regardless of the negligence of Landlord, its agents or any and all affiliates of Landlord in 

  

					
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connection with the foregoing. Notwithstanding anything to the contrary contained in this Lease, in no event shall Landlord be liable for Tenant’s loss or interruption of business or income
(including without limitation, Tenant’s consequential damages, lost profits or opportunity costs), or for interference with light or other similar intangible interests. 

10.4. WAIVER OF SUBROGATION. Landlord and Tenant each hereby waives all rights of recovery against the other on account of loss and
damage occasioned to the property of such waiving party to the extent that the waiving party is entitled to proceeds for such loss and damage under any property insurance policies carried or otherwise required to be carried by this Lease; provided
however, that the foregoing waiver shall not apply to the extent of Tenant’s obligation to pay deductibles under any such policies and this Lease. 

ARTICLE 11. DAMAGE OR DESTRUCTION 

11.1. RESTORATION. 
 (a)
If the Building of which the Premises are a part is damaged as the result of an event of casualty, then subject to the provisions below, Landlord shall repair that damage as soon as reasonably possible unless Landlord reasonably determines that:
(i) the Premises have been materially damaged and there is less than 1 year of the Term remaining on the date of the casualty; (ii) any Mortgagee (defined in Section 13.1) requires that the insurance proceeds be applied to the payment of
the mortgage debt; or (iii) proceeds necessary to pay the full cost of the repair are not available from Landlord’s insurance, including without limitation earthquake insurance. Should Landlord elect not to repair the damage for one of the
preceding reasons, Landlord shall so notify Tenant in the “Casualty Notice” (as defined below), and this Lease shall terminate as of the date of delivery of that notice. 

(b) As soon as reasonably practicable following the casualty event but not later than 60 days thereafter, Landlord shall notify Tenant in
writing (“Casualty Notice”) of Landlord’s election, if applicable, to terminate this Lease. If this Lease is not so terminated, the Casualty Notice shall set forth the anticipated period for repairing the casualty damage. If
the anticipated repair period exceeds 270 days and if the damage is so extensive as to reasonably prevent Tenant’s substantial use and enjoyment of the Premises, then either party may elect to terminate this Lease by written notice to the other
within 10 days following delivery of the Casualty Notice. 
 (c) In the event that neither Landlord nor Tenant terminates this Lease pursuant
to Section 11.1(b), Landlord shall repair all material damage to the Premises or the Building as soon as reasonably possible and this Lease shall continue in effect for the remainder of the Term. Upon notice from Landlord, Tenant shall assign
or endorse over to Landlord (or to any party designated by Landlord) all property insurance proceeds payable to Tenant under Tenant’s insurance with respect to any Alterations. Within 15 days of demand, Tenant shall also pay Landlord for any
additional excess costs that are determined during the performance of the repairs to such Alterations. 
 (d) From and after the casualty
event, the rental to be paid under this Lease shall be abated in the same proportion that the Floor Area of the Premises that is rendered unusable by the damage from time to time bears to the total Floor Area of the Premises. 

(e) Notwithstanding the provisions of subsections (a), (b) and (c) of this Section 11.1, but subject to Section 10.4, the cost
of any repairs shall be borne by Tenant, and Tenant shall not be entitled to rental abatement or termination rights, if the damage is due to the fault or neglect of Tenant or its employees, subtenants, contractors, invitees or representatives. 

11.2. LEASE GOVERNS. Tenant agrees that the provisions of this Lease, including without limitation Section 11.1, shall govern any
damage or destruction and shall accordingly supersede any contrary statute or rule of law. 
 ARTICLE 12. EMINENT DOMAIN 

Either party may terminate this Lease if any material part of the Premises is taken or condemned for any public or quasi-public use under Law,
by eminent domain or private purchase in lieu thereof (a “Taking”). Landlord shall also have the right to terminate this Lease if there is a Taking of any portion of the Building or Project which would have a material adverse effect
on Landlord’s ability to profitably operate the remainder of the Building. The termination shall be effective as of the effective date of any order granting possession to, or vesting legal title in, the condemning authority. All compensation
awarded for a Taking shall be the property of Landlord. Tenant agrees that the provisions of this Lease shall govern any Taking and shall accordingly supersede any contrary statute or rule of law. 

ARTICLE 13. SUBORDINATION; ESTOPPEL CERTIFICATE 

13.1. SUBORDINATION. Tenant accepts this Lease subject and subordinate to any mortgage(s), deed(s) of trust, ground lease(s) or other
lien(s) now or subsequently arising upon the Premises, the Building or the Project, and to renewals, modifications, refinancings and extensions thereof (collectively referred to as a “Mortgage”). The party having the benefit of a
Mortgage shall be referred to as a “Mortgagee.” This clause shall be self-operative, but upon request from a Mortgagee, Tenant shall execute a commercially reasonable subordination and attornment agreement in favor of the Mortgagee,
provided such agreement provides a non-disturbance covenant benefitting Tenant. Alternatively, a Mortgagee shall have the right at any time to subordinate its Mortgage to this Lease. Upon request, Tenant,
without charge, shall attorn to any successor to Landlord’s interest in this Lease in the event of a foreclosure of any mortgage. Tenant agrees that any purchaser at a foreclosure sale or lender taking title under a deed in lieu of foreclosure
shall not be responsible for any act or omission of a prior landlord, shall not be subject to any offsets or defenses Tenant may have against a prior landlord, and shall not be liable for the return of the Security Deposit not actually recovered by
such purchaser nor bound by any rent paid in advance of the calendar month in which the transfer of title occurred; provided that the foregoing shall not release the applicable prior landlord from any liability for those obligations. Tenant
acknowledges that Landlord’s Mortgagees and their successors-in-interest are intended third party beneficiaries of this Section 13.1. 

  

					
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 13.2. ESTOPPEL CERTIFICATE. Tenant shall, within 10 days after receipt of a written
request from Landlord, execute and deliver a commercially reasonable estoppel certificate in favor of those parties as are reasonably requested by Landlord (including a Mortgagee or a prospective purchaser of the Building or the Project). 

ARTICLE 14. DEFAULTS AND REMEDIES 

14.1. TENANT’S DEFAULTS. In addition to any other event of default set forth in this Lease, the occurrence of any one or more of
the following events shall constitute a “Default” by Tenant: 
 (a) The failure by Tenant to make any payment of Rent
required to be made by Tenant, as and when due, where the failure continues for a period of 3 days after written notice from Landlord to Tenant. The term “Rent” as used in this Lease shall be deemed to mean the Basic Rent and all
other sums required to be paid by Tenant to Landlord pursuant to the terms of this Lease. 
 (b) Except where a specific time period is
otherwise set forth for Tenant’s performance in this Lease (in which event the failure to perform by Tenant within such time period shall be a Default), the failure or inability by Tenant to observe or perform any of the covenants or provisions
of this Lease to be observed or performed by Tenant, other than as specified in any other subsection of this Section 14.1, where the failure continues for a period of 30 days after written notice from Landlord to Tenant. 

The notice periods provided herein are in lieu of, and not in addition to, any notice periods provided by law, and Landlord shall not be
required to give any additional notice under California Code of Civil Procedure Section 1161, or any successor statute, in order to be entitled to commence an unlawful detainer proceeding. 

14.2. LANDLORD’S REMEDIES. 

(a) Upon the occurrence of any Default by Tenant, then in addition to any other remedies available to Landlord, Landlord may exercise the
following remedies: 
 (i) Landlord may terminate Tenant’s right to possession of the Premises by any lawful means, in which case this
Lease shall terminate and Tenant shall immediately surrender possession of the Premises to Landlord. Such termination shall not affect any accrued obligations of Tenant under this Lease. Upon termination, Landlord shall have the right to reenter the
Premises and remove all persons and property. Landlord shall also be entitled to recover from Tenant: 
 (1) The worth at the time of award
of the unpaid Rent which had been earned at the time of termination; 
 (2) The worth at the time of award of the amount by which the unpaid
Rent which would have been earned after termination until the time of award exceeds the amount of such loss that Tenant proves could have been reasonably avoided; 

(3) The worth at the time of award of the amount by which the unpaid Rent for the balance of the Term after the time of award exceeds the
amount of such loss that Tenant proves could be reasonably avoided; 
 (4) Any other amount necessary to compensate Landlord for all the
detriment proximately caused by Tenant’s failure to perform its obligations under this Lease or which in the ordinary course of things would be likely to result from Tenant’s default, including, but not limited to, the cost of recovering
possession of the Premises, commissions and other expenses of reletting, including necessary repair, renovation, improvement and alteration of the Premises for a new tenant, reasonable attorneys’ fees, and any other reasonable costs; and 

(5) At Landlord’s election, all other amounts in addition to or in lieu of the foregoing as may be permitted by law. Any sum, other than
Basic Rent, shall be computed on the basis of the average monthly amount accruing during the 24 month period immediately prior to Default, except that if it becomes necessary to compute such rental before the 24 month period has occurred, then the
computation shall be on the basis of the average monthly amount during the shorter period. As used in subparagraphs (1) and (2) above, the “worth at the time of award” shall be computed by allowing interest at the rate of 10% per
annum. As used in subparagraph (3) above, the “worth at the time of award” shall be computed by discounting the amount at the discount rate of the Federal Reserve Bank of San Francisco at the time of award plus 1 %. 

(ii) Employ the remedy described in California Civil Code § 1951.4 (Landlord may continue this Lease in effect after Tenant’s breach
and abandonment and recover Rent as it becomes due, if Tenant has the right to sublet or assign, subject only to reasonable limitations). 

(b) The various rights and remedies reserved to Landlord in this Lease or otherwise shall be cumulative and, except as otherwise provided by
California law, Landlord may pursue any or all of its rights and remedies at the same time. No delay or omission of Landlord to exercise any right or remedy shall be construed as a waiver of the right or remedy or of any breach or Default by Tenant.
The acceptance by Landlord of rent shall not be a (i) waiver of any preceding breach or Default by Tenant of any provision of this Lease, other than the failure of Tenant to pay the particular rent accepted, regardless of Landlord’s
knowledge of the preceding breach or Default at the time of acceptance of rent, or (ii) a waiver of Landlord’s right to exercise any remedy available to Landlord by virtue of the breach or Default. No payment by Tenant or receipt by
Landlord of a lesser amount than the rent required by this Lease shall be deemed to be other than a partial payment on account of the earliest due stipulated rent, nor shall any endorsement or statement on any check or letter be deemed an accord and
satisfaction and Landlord shall accept the check or payment without prejudice to Landlord’s right to recover the balance of the rent or pursue any other remedy available to it. Tenant hereby waives any right of redemption or relief from
forfeiture under California Code of Civil Procedure Section 1174 or 1179, or under any successor statute, in the event this Lease is terminated by reason of any Default by Tenant. No act or thing done by Landlord or Landlord’s agents
during the Term shall be deemed an acceptance of a surrender of the Premises, and no agreement to accept a surrender shall be valid unless in writing and signed by Landlord. 

  

					
	IOPLEGAL-4-44	  	7	  	12/13/16 - 245927 - 0.2

 14.3. LATE PAYMENTS. Any Rent due under this Lease that is not paid to Landlord
within 5 days of the date when due shall bear interest at the maximum rate permitted by law from the date due until fully paid and if any Rent due from Tenant shall not be received by Landlord or Landlord’s designee within 5 days after the date
due, then Tenant shall pay to Landlord, in addition to the interest, a late charge for each delinquent payment equal to the greater of (i) 5% of that delinquent payment or (ii) $100.00. 

14.4. DEFAULT BY LANDLORD. Landlord shall not be deemed to be in default in the performance of any obligation under this Lease unless
and until it has failed to perform the obligation within 30 days after written notice by Tenant to Landlord specifying in reasonable detail the nature and extent of the failure; provided, however, that if the nature of Landlord’s obligation is
such that more than 30 days are required for its performance, then Landlord shall not be deemed to be in default if it commences performance within the 30 day period and thereafter diligently pursues the cure to completion. 

14.5. EXPENSES AND LEGAL FEES. Should either Landlord or Tenant bring any action in connection with this Lease, the prevailing party
shall be entitled to recover as a part of the action its reasonable attorneys’ fees, and all other reasonable costs. The prevailing party for the purpose of this paragraph shall be determined by the trier of the facts. 

14.6. WAIVER OF JURY TRIAL/JUDICIAL REFERENCE. 

(a) LANDLORD AND TENANT EACH ACKNOWLEDGES THAT IT IS AWARE OF AND HAS HAD THE ADVICE OF COUNSEL OF ITS CHOICE WITH RESPECT TO ITS RIGHT TO
TRIAL BY JURY, AND EACH PARTY DOES HEREBY EXPRESSLY AND KNOWINGLY WAIVE AND RELEASE ALL SUCH RIGHTS TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM BROUGHT BY EITHER PARTY HERETO AGAINST THE OTHER (AND/OR AGAINST ITS OFFICERS, DIRECTORS,
EMPLOYEES, AGENTS, OR SUBSIDIARY OR AFFILIATED ENTITIES) ON ANY MATTERS WHATSOEVER ARISING OUT OF OR IN ANY WAY CONNECTED WITH THIS LEASE, TENANT’S USE OR OCCUPANCY OF THE PREMISES, AND/OR ANY CLAIM OF INJURY OR DAMAGE. 

(b) In the event that the jury waiver provisions of Section 14.6 (a) are not enforceable under California law, then, unless otherwise
agreed to by the parties, the provisions of this Section 14.6 (b) shall apply. Landlord and Tenant agree that any disputes arising in connection with this Lease (including but not limited to a determination of any and all of the issues in such
dispute, whether of fact or of law) shall be resolved (and a decision shall be rendered) by way of a general reference as provided for in Part 2, Title 8, Chapter 6 (§§ 638 et. seq.) of the California Code of Civil Procedure, or any
successor California statute governing resolution of disputes by a court appointed referee. Nothing within this Section 14.6 shall apply to an unlawful detainer action. 

14.7. SATISFACTION OF JUDGMENT. The obligations of Landlord do not constitute the personal obligations of the individual partners,
trustees, directors, officers, members or shareholders of Landlord or its constituent partners or members. Should Tenant recover a money judgment against Landlord, such judgment shall be satisfied only from the interest of Landlord in the Project
and out of the rent or other income from such property receivable by Landlord, and no action for any deficiency may be sought or obtained by Tenant. 

ARTICLE 15. END OF TERM 

15.1. HOLDING OVER. If Tenant holds over for any period after the Expiration Date (or earlier termination of the Term), such tenancy
shall constitute a tenancy at sufferance only and possession shall be subject to all of the terms of this Lease, except that the monthly rental shall be 200% of the total monthly rental for the month immediately preceding the date of termination.
The acceptance by Landlord of monthly hold-over rental in a lesser amount shall not constitute a waiver of Landlord’s right to recover the full amount due unless otherwise agreed in writing by Landlord. If Tenant fails to surrender the Premises
upon the expiration of this Lease despite demand to do so by Landlord, Tenant shall indemnify and hold Landlord harmless from all loss or liability, including without limitation, any claims made by any succeeding tenant relating to such failure to
surrender. The foregoing provisions of this Section 15.1 are in addition to and do not affect Landlord’s right of re-entry or any other rights of Landlord under this Lease or at law. 

15.2. SURRENDER OF PREMISES; REMOVAL OF PROPERTY. Upon the Expiration Date or upon any earlier termination of this Lease, Tenant shall
quit and surrender possession of the Premises to Landlord in as good order, condition and repair as when received or as hereafter may be improved by Landlord or Tenant, reasonable wear and tear and repairs which are Landlord’s obligation
excepted, and shall remove or fund to Landlord the cost of removing all wallpapering, voice and/or data transmission cabling installed by or for Tenant and Required Removables, together with all personal property and debris, and shall perform all
work required under Section 7.3 of this Lease. If Tenant shall fail to comply with the provisions of this Section 15.2, Landlord may effect the removal and/or make any repairs, and the cost to Landlord shall be additional rent payable by
Tenant upon demand. 
 ARTICLE 16. PAYMENTS AND NOTICES 

All sums payable by Tenant to Landlord shall be paid, without deduction or offset, in lawful money of the United States to Landlord at its
address set forth in Item 12 of the Basic Lease Provisions, or at any other place as Landlord may designate in writing. Unless this Lease expressly provides otherwise, all payments shall be due and payable within 5 days after demand. All payments
requiring proration shall be prorated on the basis of the number of days in the pertinent calendar month or year, as applicable. Any notice, election, demand, consent or approval to be given or other document to be delivered by either party to the
other may be delivered to the other party, at the address set forth in Item 12 of the Basic Lease Provisions, by personal service or by any courier or “overnight” express mailing service. Either party may, by written notice to the other,
served in the manner provided in this Article, designate a different address. The refusal to accept delivery of a notice, or the inability to deliver the notice (whether due to a change of address for which notice was not duly given or other good
reason), shall be deemed delivery and receipt of the notice as of the date of attempted delivery. 

  

					
	IOPLEGAL-4-44	  	8	  	12/13/16 - 245927 - 0.2

 ARTICLE 17. RULES AND REGULATIONS 

Tenant agrees to comply with the Rules and Regulations attached as Exhibit E, and any reasonable and nondiscriminatory amendments,
modifications and/or additions as may be adopted by Landlord from time to time. 
 ARTICLE 18. BROKER’S COMMISSION 

The parties recognize as the broker(s) who negotiated this Lease the firm(s) whose name(s) is (are) stated in Item 10 of the Basic Lease
Provisions, and agree that Landlord shall be responsible for the payment of brokerage commissions to those broker(s) unless otherwise provided in this Lease. Tenant agrees to indemnify and hold Landlord harmless from any cost, expense or liability
(including reasonable attorneys’ fees) for any compensation, commissions or charges claimed by any other real estate broker or agent employed or claiming to represent or to have been employed by Tenant in connection with the negotiation of this
Lease. 
 ARTICLE 19. TRANSFER OF LANDLORD’S INTEREST 

Landlord shall have the right to transfer and assign, in whole or in part, all of its ownership interest, rights and obligations in the
Building, Project or Lease, including the Security Deposit, and upon transfer Landlord shall be released from any further obligations hereunder, and Tenant agrees to look solely to the successor in interest of Landlord for the performance of such
obligations and the return of any Security Deposit. 
 ARTICLE 20. INTERPRETATION 

20.1. NUMBER. Whenever the context of this Lease requires, the words “Landlord” and “Tenant” shall include the
plural as well as the singular. 
 20.2. JOINT AND SEVERAL LIABILITY. If more than one person or entity is named as Tenant, the
obligations imposed upon each shall be joint and several and the act of or notice from, or notice or refund to, or the signature of, any one or more of them shall be binding on all of them with respect to the tenancy of this Lease, including, but
not limited to, any renewal, extension, termination or modification of this Lease. 
 20.3. SUCCESSORS. The expiration of the Term,
whether by lapse of time, termination or otherwise, shall not relieve either party of any obligations which accrued prior to or which may continue to accrue after the expiration or termination of this Lease. 

20.4. TIME OF ESSENCE. Time is of the essence with respect to the performance of every provision of this Lease in which time of
performance is a factor. 
 20.5. CONTROLLING LAW/VENUE. This Lease shall be governed by and interpreted in accordance with the laws
of the State of California. 
 20.6. SEVERABILITY. If any term or provision of this Lease, the deletion of which would not adversely
affect the receipt of any material benefit by either party or the deletion of which is consented to by the party adversely affected, shall be held invalid or unenforceable to any extent, the remainder of this Lease shall not be affected and each
term and provision of this Lease shall be valid and enforceable to the fullest extent permitted by law. 
 20.7. WAIVER. One or more
waivers by Landlord or Tenant of any breach of any term, covenant or condition contained in this Lease shall not be a waiver of any subsequent breach of the same or any other term, covenant or condition. Consent to any act by one of the parties
shall not be deemed to render unnecessary the obtaining of that party’s consent to any subsequent act. No breach of this Lease shall be deemed to have been waived unless the waiver is in a writing signed by the waiving party. 

20.8. INABILITY TO PERFORM. In the event that either party shall be delayed or hindered in or prevented from the performance of any work
or in performing any act required under this Lease by reason of any cause beyond the reasonable control of that party, then the performance of the work or the doing of the act shall be excused for the period of the delay and the time for performance
shall be extended for a period equivalent to the period of the delay. The provisions of this Section 20.8 shall not operate to excuse Tenant from the prompt payment of Rent. 

20.9. ENTIRE AGREEMENT. This Lease constitutes the entire agreement between the parties and supersedes all prior agreements and
understandings related to the Premises. This Lease may be modified only by a written agreement signed by Landlord and Tenant. 
 20.10.
QUIET ENJOYMENT. Upon the observance and performance of all the covenants, terms and conditions on Tenant’s part to be observed and performed, and subject to the other provisions of this Lease, Tenant shall have the right of quiet enjoyment
and use of the Premises for the Term without hindrance or interruption by Landlord or any other person claiming by or through Landlord. 

20.11. SURVIVAL. All covenants of Landlord or Tenant which reasonably would be intended to survive the expiration or sooner termination
of this Lease, including without limitation any warranty or indemnity hereunder, shall so survive and continue to be binding upon and inure to the benefit of the respective parties and their successors and assigns. 

ARTICLE 21. EXECUTION 

21.1. COUNTERPARTS; DIGITAL SIGNATURES. This Lease may be executed in one or more counterparts, each of which shall constitute an
original and all of which shall be one and the same agreement. The parties agree to accept a digital image (including but not limited to an image in the form of a PDF, JPEG, GIF file, or other e-signature) of
this Lease, if applicable, reflecting the execution of one or both of the parties, as a true and correct original. 

  

					
	IOPLEGAL-4-44	  	9	  	12/13/16 - 245927 - 0.2

 21.2. CORPORATE AND PARTNERSHIP AUTHORITY. Tenant represents and warrants to
Landlord, and agrees, that each individual executing this Lease on behalf of Tenant is authorized to do so on behalf of Tenant. 
 21.3.
EXECUTION OF LEASE; NO OPTION OR OFFER. The submission of this Lease to Tenant shall be for examination purposes only, and shall not constitute an offer to or option for Tenant to lease the Premises unless and until Landlord has executed and
delivered this Lease to Tenant. 
 21.4. BROKER DISCLOSURE. By the execution of this Lease, each of Landlord and Tenant hereby
acknowledge and confirm (a) receipt of a copy of a Disclosure Regarding Real Estate Agency Relationship conforming to the requirements of California Civil Code 2079.16, and (b) the agency relationships specified in Section 10 of the Basic Lease
Provisions, which acknowledgement and confirmation is expressly made for the benefit of Tenant’s Broker identified in Section 10 of the Basic Lease Provisions. If there is no Tenant’s Broker so identified in Section 10 of the Basic Lease
Provisions, then such acknowledgement and confirmation is expressly made for the benefit of Landlord’s Broker. By the execution of this Lease, Landlord and Tenant are executing the confirmation of the agency relationships set forth in Section
10 of the Basic Lease Provisions. 
 ARTICLE 22. MISCELLANEOUS 

22.1. MORTGAGEE PROTECTION. No act or failure to act on the part of Landlord which would otherwise entitle Tenant to be relieved of its
obligations hereunder or to terminate this Lease shall result in such a release or termination unless (a) Tenant has given notice by registered or certified mail to any Mortgagee of a Mortgage covering the Building whose address has been furnished
to Tenant and (b) such Mortgagee is afforded a reasonable opportunity to cure the default by Landlord. Tenant shall comply with any written directions by any Mortgagee to pay Rent due hereunder directly to such Mortgagee without determining whether
a default exists under such Mortgagee’s Mortgage. 
 22.2. SDN LIST. Tenant hereby represents and warrants that neither Tenant
nor any officer, director, employee, partner, member or other principal of Tenant (collectively, “Tenant Parties”) is listed as a Specially Designated National and Blocked Person (“SDN”) on the list of such persons
and entities issued by the U.S. Treasury Office of Foreign Assets Control (OFAC). In the event Tenant or any Tenant Party is or becomes listed as an SDN, Tenant shall be deemed in breach of this Lease and Landlord shall have the right to terminate
this Lease immediately upon written notice to Tenant. 
  

							
	LANDLORD:	  	TENANT:
		
	LJ GATEWAY OFFICE LLC,	  	TUSIMPLE LLC,
	a Delaware limited liability company	  	a California limited liability company
			
		  	By	  	 /s/ Xiaodi Hou

	By	  	 /s/ Steven M. Case
	  	Printed Name Xiaodi Hou
		  	 Steven M. Case
 Evp

Office Properties
	  	Title CTO
		  	By	  	 /s/ Chen Mo Terry

		  		  	 Printed Name Chen Mo Terry
 Title
CEO

	By	  	 /s/ Pamela Van Nort
	  		  	
		  	Pamela Van Nort	  		  	
		  	Vice President, Operations Office Properties	  		  	

  

					
	IOPLEGAL-4-44	  	10	  	12/13/16-245927- 0.2

 EXHIBIT A 

DESCRIPTION OF PREMISES 

9191 Towne Centre Drive, Suite 600 
  

 

  

					
	IOPLEGAL-4-44	  		  	12/13/16-245927- 0.2

 EXHIBIT B 

Operating Expenses and Taxes 

(Base Year) 
 (a) Tenant
shall pay Landlord, as additional rent, for Tenant’s Share of the amount, if any, by which “Project Costs” (defined below) for each Expense Recovery Period during the Term exceed Project Costs for the Project Cost Base and the
amount, if any, by which “Property Taxes” (defined below) for each Expense Recovery Period during the Term exceed Property Taxes for the Property Tax Base. Property Taxes and Project Costs are mutually exclusive and may be billed
separately or in combination as determined by Landlord. “Tenant’s Share” shall mean that portion of any Operating Expenses determined by multiplying the cost of such item by a fraction, the numerator of which is the Floor Area
and the denominator of which is the total rentable square footage, as determined from time to time by Landlord, of (i) the Floor Area of the Building as defined in Item 8 of the Basic Lease Provisions, for expenses determined by Landlord to benefit
or relate substantially to the Building rather than the entire Project, or (ii) all or some of the buildings in the Project, for expenses determined by Landlord to benefit or relate substantially to all or some of the buildings in the Project
rather than any specific building. Tenant acknowledges Landlord’s rights to make changes or additions to the Building and/or Project from time to time, in which event the total rentable square footage within the Building and/or Project may be
adjusted. For convenience of reference, Property Taxes and Project Costs may sometimes be collectively referred to as “Operating Expenses.” Notwithstanding the foregoing, Landlord hereby agrees that Tenant shall not be responsible
for Tenant’s Share of Operating Expense excess accruing during the 12 month period commencing as of the Commencement Date. 
 (b)
Commencing prior to the start of the first full “Expense Recovery Period” of the Lease (as defined in Item 7 of the Basic Lease Provisions) following the Base Year, and prior to the start of each full or partial Expense Recovery
Period thereafter, Landlord shall give Tenant a written estimate of the amount of Tenant’s Share of Project Costs and Property Taxes for the Expense Recovery Period or portion thereof. Tenant shall pay the estimated amounts to Landlord in equal
monthly installments, in advance, with Basic Rent. Landlord may from time to time change the Expense Recovery Period to reflect a calendar year or a new fiscal year of Landlord, as applicable, in which event Tenant’s share of Operating Expenses
shall be equitably prorated for any partial year. From time to time during an Expense Recovery Period, Landlord may revise the estimate based on increases in any of the Operating Expenses. 

(c) Within 180 days after the end of each Expense Recovery Period, Landlord shall furnish to Tenant a statement setting forth the actual or
prorated Property Taxes and Project Costs attributable to that period, and the parties shall within 30 days thereafter make any payment or allowance necessary to adjust Tenant’s estimated payments, if any, to Tenant’s actual Tenant’s
Share as shown by the annual statement. If actual Property Taxes or Project Costs allocable to Tenant during any Expense Recovery Period are less than the Property Tax Base or the Project Cost Base, respectively, Landlord shall not be required to
pay that differential to Tenant, although Landlord shall refund any applicable estimated payments collected from Tenant. Should Tenant fail to object in writing to Landlord’s determination of actual Operating Expenses within 60 days following
delivery of Landlord’s expense statement, Landlord’s determination of actual Operating Expenses for the applicable Expense Recovery Period shall be conclusive and binding on Tenant. 

(d) Even though the Lease has terminated and the Tenant has vacated the Premises, when the final determination is made of Tenant’s share
of Property Taxes and Project Costs for the Expense Recovery Period in which the Lease terminates, Tenant shall upon notice pay the entire increase due over the estimated expenses paid; conversely, any overpayment made in the event expenses decrease
shall be rebated by Landlord to Tenant. 
 (e) The term “Project Costs” shall include all charges and expenses pertaining to
the operation, management, maintenance and repair of the Building and the Project, together with all appurtenant Common Areas (as defined in Section 6.2), and shall include the following charges by way of illustration but not limitation: water
and sewer charges; insurance premiums and deductibles and/or reasonable premium equivalents and deductible equivalents should Landlord elect to self-insure any risk that Landlord is authorized to insure hereunder; license, permit, and inspection
fees; heat; light; power; janitorial services; the cost of equipping, staffing and operating an on-site and/or off-site management office for the Building and Project;
all labor and labor-related costs for personnel applicable to the Building and Project, including both Landlord’s personnel and outside personnel; a commercially reasonable Landlord overhead/management fee; reasonable fees for consulting
services; access control/security costs, inclusive of the reasonable cost of improvements made to enhance access control systems and procedures; repairs; air conditioning; supplies; materials; equipment; tools; tenant services; programs instituted
to comply with transportation management requirements; any expense incurred pursuant to Sections 6.1, 6.2, 7.2, and Exhibits C and F below; costs incurred (capital or otherwise) on a regular recurring basis every 3 or more years for
normal maintenance projects (e.g., parking lot slurry coat or replacement of lobby, corridor and elevator cab carpets and coverings); and the amortized cost of capital improvements (as distinguished from replacement parts or components installed in
the ordinary course of business) which are intended to reduce other operating costs or increases thereof, or upgrade Building and/or Project security, or which are required to bring the Building and/or Project into compliance with applicable laws
and building codes. Landlord shall amortize the cost of capital improvements on a straight-line basis over the lesser of the Payback Period (as defined below) or the useful life of the capital improvement as reasonably determined by Landlord. Any
amortized Project Costs item may include, at Landlord’s option, an actual or imputed interest rate that Landlord would reasonably be required to pay to finance the cost of the item, applied on the unamortized balance. “Payback
Period” shall mean the reasonably estimated period of time that it takes for the cost savings, if any, resulting from a capital improvement item to equal the total cost of the capital improvement. It is understood that Project Costs shall
include competitive charges for direct services provided by any subsidiary or division of Landlord. If any Project Costs are applicable to one or more buildings or properties in addition to the Building, then that cost shall be equitably prorated
and apportioned among the Building and such other buildings or properties. The term “Property Taxes” as used herein shall include the following: (i) all real estate taxes or personal property taxes, as such property taxes may
be increased from time to time due to a reassessment or otherwise; and (ii) other taxes, charges and assessments which are levied with respect to this Lease or to the Building and/or the Project, and any improvements, fixtures and equipment and
other property of Landlord located in the Building and/or the Project, except that general net income and franchise taxes imposed against Landlord shall be excluded; and (iii) any tax, surcharge or assessment which shall be levied in addition
to or in lieu of real estate or personal property taxes; and (iv) costs and expenses incurred in contesting the amount or validity of any Property Tax by appropriate proceedings. A copy of Landlord’s unaudited statement of expenses shall
be made available to Tenant upon request. The Project Costs, 

  

					
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 inclusive of those for the Base Year, shall be extrapolated by Landlord to reflect at least 95% occupancy of
the rentable area of the Building. 

  

					
	IOPLEGAL-4-44	  	2	  	12/13/16 - 245927 - 0.2

 EXHIBIT C 

UTILITIES AND SERVICES 

The following standards for utilities and services shall be in effect at the Building. Landlord reserves the right to adopt nondiscriminatory
modifications and additions to these standards. In the case of any conflict between these standards and the Lease, the Lease shall be controlling. Subject to all of the provisions of the Lease, the following shall apply: 

1. Landlord shall make available to the Premises during the hours of 8:00 a.m. to 6:00 p.m., Monday through Friday and upon request, from 9:00
a.m. to 1:00 p.m. on Saturday (“Building Hours”), generally recognized national holidays excepted, reasonable HVAC services. Subject to the provisions set forth below, Landlord shall also furnish the Building with elevator service
(if applicable), reasonable amounts of electric current for normal lighting by Landlord’s standard overhead fluorescent and incandescent fixtures and for the operation of office equipment consistent in type and quantity with that utilized by
typical office tenants of the Building and Project, and water for lavatory purposes. Tenant will not, without the prior written consent of Landlord, connect any apparatus, machine or device with water pipes or electric current (except through
existing electrical outlets in the Premises) for the purpose of using electric current or water. 
 2. Upon written request from Tenant
delivered to Landlord at least 24 hours prior to the period for which service is requested, but during normal business hours, Landlord will provide any of the foregoing building services to Tenant at such times when such services are not otherwise
available. Tenant agrees to pay Landlord for those after-hour services at rates that Landlord may establish from time to time. If Tenant requires electric current in excess of that which Landlord is obligated to furnish under this Exhibit C,
Tenant shall first obtain the consent of Landlord, and Landlord may cause an electric current meter to be installed in the Premises to measure the amount of electric current consumed. The cost of installation, maintenance and repair of the meter
shall be paid for by Tenant, and Tenant shall reimburse Landlord promptly upon demand for all electric current consumed for any special power use as shown by the meter. 

3. Landlord shall furnish water for drinking, personal hygiene and lavatory purposes only. 

4. In the event that any utility service to the Premises is separately metered or billed to Tenant, Tenant shall pay all charges for that
utility service to the Premises and the cost of furnishing the utility to tenant suites shall be excluded from the Operating Expenses as to which reimbursement from Tenant is required in the Lease. 

5. Landlord shall provide janitorial services 5 days per week, equivalent to that furnished in comparable buildings, and window washing as
reasonably required; provided, however, that Tenant shall pay for any additional or unusual janitorial services. 
 6. Tenant shall have
access to the Building 24 hours per day, 7 days per week, 52 weeks per year; provided that Landlord may install access control systems as it deems advisable for the Building. Landlord may impose a reasonable charge for access control cards and/or
keys issued to Tenant. 
 7. The costs of operating, maintaining and repairing any supplemental air conditioning unit serving only the
Premises shall be borne solely by Tenant. Such installation shall be subject to Landlord’s prior written approval, at Tenant’s sole expense and shall include installation of a separate meter for the operation of the unit. Landlord may
require Tenant to remove at Lease expiration any such unit installed by or for Tenant and to repair any resulting damage to the Premises or Building. 

  

					
	IOPLEGAL-4-44	  	1	  	12/13/16 - 245927 - 0.2

 EXHIBIT D 

TENANT’S INSURANCE 

The following requirements for Tenant’s insurance shall be in effect during the Term, and Tenant shall also cause any subtenant to comply
with the requirements. Landlord reserves the right to adopt reasonable nondiscriminatory modifications and additions to these requirements. 

1. Tenant shall maintain, at its sole cost and expense, during the entire Term: (i) commercial general liability insurance with respect to
the Premises and the operations of Tenant in, on or about the Premises, on a policy form that is at least as broad as Insurance Service Office (ISO) CGL 00 01 (if alcoholic beverages are sold on the Premises, liquor liability shall be explicitly
covered), which policy(ies) shall be written on an “occurrence” basis and for not less than $2,000,000 combined single limit per occurrence for bodily injury, death, and property damage liability; (ii) workers’ compensation
insurance coverage as required by law, together with employers’ liability insurance coverage of at least $1,000,000 each accident and each disease; (iii) with respect to Alterations constructed by Tenant under this Lease, builder’s
risk insurance, in an amount equal to the replacement cost of the work; and (iv) insurance against fire, vandalism, malicious mischief and such other additional perils as may be included in a standard “special form” policy, insuring
all Alterations, trade fixtures, furnishings, equipment and items of personal property in the Premises, in an amount equal to not less than 90% of their replacement cost (with replacement cost endorsement), which policy shall also include business
interruption coverage in an amount sufficient to cover 1 year of loss. In no event shall the limits of any policy be considered as limiting the liability of Tenant under this Lease. 

2. All policies of insurance required to be carried by Tenant pursuant to this Exhibit D shall be written by insurance companies
authorized to do business in the State of California and with a general policyholder rating of not less than “A-” and financial rating of not less than “VIII” in the most current
Best’s Insurance Report. The deductible or other retained limit under any policy carried by Tenant shall be commercially reasonable, and Tenant shall be responsible for payment of such deductible or retained limit with waiver of subrogation in
favor of Landlord. Any insurance required of Tenant may be furnished by Tenant under any blanket policy carried by it or under a separate policy. A certificate of insurance, certifying that the policy has been issued, provides the coverage required
by this Exhibit and contains the required provisions, together with endorsements acceptable to Landlord evidencing the waiver of subrogation and additional insured provisions required below, shall be delivered to Landlord prior to the date Tenant is
given the right of possession of the Premises. Proper evidence of the renewal of any insurance coverage shall also be delivered to Landlord not less than thirty (30) days prior to the expiration of the coverage. In the event of a loss covered
by any policy under which Landlord is an additional insured, Landlord shall be entitled to review a copy of such policy. 
 3. Tenant’s
commercial general liability insurance shall contain a provision that the policy shall be primary to and noncontributory with any policies carried by Landlord, together with a provision including Landlord and any other parties in interest designated
by Landlord as additional insureds. Tenant’s policies described in Subsections 1 (ii), (iii) and (iv) above shall each contain a waiver by the insurer of any right to subrogation against Landlord, its agents, employees, contractors and
representatives. Tenant also waives its right of recovery for any deductible or retained limit under same policies enumerated above. All of Tenant’s policies shall contain a provision that the insurer will not cancel or change the coverage
provided by the policy without first giving Landlord 30 days prior written notice. Tenant shall also name Landlord as an additional insured on any excess or umbrella liability insurance policy carried by Tenant. 

NOTICE TO TENANT: IN ACCORDANCE WITH THE TERMS OF THIS LEASE, TENANT MUST PROVIDE EVIDENCE OF THE REQUIRED INSURANCE TO LANDLORD’S MANAGEMENT AGENT
PRIOR TO BEING AFFORDED ACCESS TO THE PREMISES. 

  

					
	IOPLEGAL-4-44	  	1	  	12/13/16 - 245927 - 0.2

 EXHIBIT E 

RULES AND REGULATIONS 
 The
following Rules and Regulations shall be in effect at the Building. Landlord reserves the right to adopt reasonable nondiscriminatory modifications and additions at any time. In the case of any conflict between these regulations and the Lease, the
Lease shall be controlling. 
 1. The sidewalks, halls, passages, elevators, stairways, and other common areas shall not be obstructed by
Tenant or used by it for storage, for depositing items, or for any purpose other than for ingress to and egress from the Premises. Should Tenant have access to any balcony or patio area, Tenant shall not place any furniture other personal property
in such area without the prior written approval of Landlord. 
 2. Neither Tenant nor any employee or contractor of Tenant shall go upon the
roof of the Building without the prior written consent of Landlord. 
 3. Tenant shall, at its expense, be required to utilize the third
party contractor designated by Landlord for the Building to provide any telephone wiring services from the minimum point of entry of the telephone cable in the Building to the Premises. 

4. No antenna or satellite dish shall be installed by Tenant without the prior written agreement of Landlord. 

5. The sashes, sash doors, windows, glass lights, solar film and/or screen, and any lights or skylights that reflect or admit light into the
halls or other places of the Building shall not be covered or obstructed. If Landlord, by a notice in writing to Tenant, shall object to any curtain, blind, tinting, shade or screen attached to, or hung in, or used in connection with, any window or
door of the Premises, the use of that curtain, blind, tinting, shade or screen shall be immediately discontinued and removed by Tenant. No awnings shall be permitted on any part of the Premises. 

6. The installation and location of any unusually heavy equipment in the Premises, including without limitation file storage units, safes and
electronic data processing equipment, shall require the prior written approval of Landlord. The moving of large or heavy objects shall occur only between those hours as may be designated by, and only upon previous notice to, Landlord. No freight,
furniture or bulky matter of any description shall be received into or moved out of the lobby of the Building or carried in any elevator other than the freight elevator (if available) designated by Landlord unless approved in writing by Landlord.

 7. Any pipes or tubing used by Tenant to transmit water to an appliance or device in the Premises must be made of copper or stainless
steel, and in no event shall plastic tubing be used for that purpose. 
 8. Tenant shall not place any lock(s) on any door in the Premises or
Building without Landlord’s prior written consent, which consent shall not be unreasonably withheld. Upon the termination of its tenancy, Tenant shall deliver to Landlord all the keys to offices, rooms and toilet rooms and all access cards
which shall have been furnished to Tenant or which Tenant shall have had made. 
 9. Tenant shall not install equipment requiring electrical
or air conditioning service in excess of that to be provided by Landlord under the Lease without prior written approval from Landlord. 
 10.
Tenant shall not use space heaters within the Premises. 
 11. Tenant shall not do or permit anything to be done in the Premises, or bring
or keep anything in the Premises, which shall in any way increase the insurance on the Building, or on the property kept in the Building, or interfere with the rights of other tenants, or conflict with any government rule or regulation. 

12. Tenant shall not use or keep any foul or noxious gas or substance in the Premises. 

13. Tenant shall not permit the Premises to be occupied or used in a manner offensive or objectionable to Landlord or other occupants of the
Building by reason of noise, odors and/or vibrations, or interfere in any way with other tenants or those having business with other tenants. 

14. Tenant shall not permit any pets or animals in or about the Building. Bona fide service animals are permitted provided such service animals
are pre-approved by Landlord, remain under the direct control of the individual they serve at all times, and do not disturb or threaten others. 

15. Neither Tenant nor its employees, agents, contractors, invitees or licensees shall bring any firearm, whether loaded or unloaded, into the
Project at any time. 
 16. Smoking, including via personal vaporizers or other electronic cigarettes, anywhere within the Premises or
Building is strictly prohibited, and Landlord may enforce such prohibition pursuant to Landlord’s leasehold remedies. Smoking is permitted outside the Building and within the project only in areas designated by Landlord. 

17. Tenant shall not install an aquarium of any size in the Premises unless otherwise approved by Landlord. 

18. Tenant shall not utilize any name selected by Landlord from time to time for the Building and/or the Project as any part of Tenant’s
corporate or trade name. Landlord shall have the right to change the name, number or designation of the Building or Project without liability to Tenant. Tenant shall not use any picture of the Building in its advertising, stationery or in any other
manner. 
 19. Tenant shall, upon request by Landlord, supply Landlord with the names and telephone numbers of personnel designated by Tenant
to be contacted on an after-hours basis should circumstances warrant. 
 20. Landlord may from time to time grant tenants individual and
temporary variances from these Rules, provided that any variance does not have a material adverse effect on the use and enjoyment of the Premises by Tenant. 

21. Fitness Center Rules. Tenant shall cause its employees (whether members or prospective members of the Fitness Center) to comply with the
following Fitness Center rules and regulations (subject to change from time to time as Landlord may solely determine): 
 (a) Membership in
the Fitness Center is open to the tenants of Landlord or its affiliates only. No guests will be permitted to use the Fitness Center without the prior written approval of Landlord or Landlord’s representative. 

  

					
	IOPLEGAL-4-44	  	1	  	12/13/16 - 245927 - 0.2

 (b) Fitness Center users are not allowed to be in the Fitness Center other than the hours
designated by Landlord from time to time. Landlord shall have the right to alter the hours of use of the Fitness Center, at Landlord’s sole discretion. 

(c) All Fitness Center users must execute Landlord’s Waiver of Liability prior to use of the Fitness Center and agree to all terms and
conditions outlined therein. 
 (d) Individual membership and guest keycards to the Fitness Center shall not be shared and shall only be used
by the individual to whom such keycard was issued. Failure to abide by this rule may result in immediate termination of such Fitness Center user’s right to use the Fitness Center. 

(e) All Fitness Center users and approved guests must have a pre-authorized keycard to enter the
Fitness Center. A pre-authorized keycard shall not be issued to a prospective Fitness Center user until receipt by Landlord of Landlord’s initial fee, if any, for use of the Fitness Center by such Fitness
Center user(s). 
 (f) Use of the Fitness Center is a privilege and not a right. Failure to follow gym rules or to act inappropriately while
using the facilities shall result in termination of Tenant’s Fitness Center privileges. 

  

					
	IOPLEGAL-4-44	  	2	  	12/13/16 - 245927 - 0.2

 EXHIBIT F 

PARKING 
 The following
parking regulations shall be in effect at the Building In the case of any conflict between these regulations and the Lease, the Lease shall be controlling. 

1. Landlord agrees to maintain, or cause to be maintained, an automobile parking area (“Parking Area”) in reasonable proximity
to the Building for the benefit and use of the visitors and patrons and, except as otherwise provided, employees of Tenant, and other tenants and occupants of the Building. Landlord shall have the right to determine the nature and extent of the
automobile Parking Area, and of making such changes to the Parking Area from time to time which in its opinion are desirable. Landlord shall not be liable for any damage to motor vehicles of visitors or employees, for any loss of property from
within those motor vehicles, or for any injury to Tenant, its visitors or employees, unless ultimately determined to be caused by the sole active negligence or willful misconduct of Landlord. Landlord shall also have the right to establish, and from
time to time amend, and to enforce against all users of the Parking Area all reasonable rules and regulations (including the designation of areas for employee parking) as Landlord may deem necessary and advisable for the proper and efficient
operation and maintenance of the Parking Area. 
 2. Landlord may, if it deems advisable in its sole discretion, charge for parking and may
establish for the Parking Area a system or systems of permit parking for Tenant, its employees and its visitors. In no event shall Tenant or its employees park in reserved stalls leased to other tenants or in stalls within designated visitor parking
zones, nor shall Tenant or its employees utilize more than the number of Parking Passes (defined below) allotted in this Lease to Tenant. Tenant shall, upon request of Landlord from time to time, furnish Landlord with a list of its employees’
names and of Tenant’s and its employees’ vehicle license numbers. Parking access devices, if applicable, shall not be transferable. Landlord may impose a reasonable fee for access devices and a replacement charge for devices which are lost
or stolen. Each access device shall be returned to Landlord promptly following the Expiration Date or sooner termination of this Lease. 
 3.
Washing, waxing, cleaning or servicing of vehicles, or the parking of any vehicle on an overnight basis, in the Parking Area (other than emergency services) by any parker or his or her agents or employees is prohibited unless otherwise authorized by
Landlord. 
 4. It is understood that the employees of Tenant and the other tenants of Landlord within the Building and Project shall not be
permitted to park their automobiles in the portions of the Parking Area which may from time to time be designated for patrons of the Building and/or Project. Tenant shall be obligated to purchase from Landlord for the Term of this Lease, the total
number of parking passes set forth in Item 11 of the Basic Lease Provisions (the “Parking Passes”) for unreserved parking, in monthly amounts as Landlord shall from time to time determine. Should any monthly parking charge not be
paid within 5 days following the date due, then a late charge shall be payable by Tenant equal to the greater of (i) 5% of the delinquent installment or (ii) $100.00, which late charge shall be separate and in addition to any late charge that may be
assessed pursuant to Section 14.3 of the Lease for other than delinquent monthly parking charges. 
 5. Landlord shall be entitled to
pass on to Tenant its proportionate share of any charges or parking surcharge or transportation management costs levied by any governmental agency and Tenant shall cooperate in any voluntary or mandated transportation management programs. 

6. Tenant shall not assign or sublet any of the Parking Passes, either voluntarily or by operation of law, without the prior written consent of
Landlord, except in connection with an authorized assignment of this Lease or subletting of the Premises. 

  

					
	IOPLEGAL-4-44	  	1	  	12/13/16 - 245927 - 0.2

 EXHIBIT G 

ADDITIONAL PROVISIONS 
 1. RIGHT TO
EXTEND. Provided that Tenant is not in Default under any provision of this Lease at the time of exercise of the extension right granted herein, and provided further that Tenant is occupying the entire Premises and has not assigned or sublet any
of its interest in this Lease (except in connection with a Permitted Transfer of this Lease to an Affiliate as described in Section 9.2 hereof), Tenant may extend the Term of this Lease for one period of 60 months. Tenant shall exercise its
right to extend the Term by and only by delivering to Landlord, not less than 9 months nor more than 12 months prior to the expiration date of the Term, Tenant’s written notice of its irrevocable commitment to extend (the “Commitment
Notice”). Should Tenant fail timely to deliver the Commitment Notice, then this extension right shall thereupon lapse and be of no further force or effect. 

The Basic Rent payable under the Lease during the extension of the Term shall be at the prevailing market rental rate (including periodic
adjustments) for comparable and similarly improved Class A office space in the UTC submarket of San Diego as of the commencement of the extension period. In no event shall the monthly Basic Rent payable for the extension period be less than the
Basic Rent payable during the month immediately preceding the commencement of such extension period. 
 Promptly following receipt of the
Commitment Notice, Landlord shall prepare an appropriate amendment to the Lease memorializing the extension of the Term in accordance with the foregoing, and Tenant shall duly execute and return same to Landlord within 15 days. If Tenant fails
timely to do so, then Landlord, at its sole discretion, may either enforce its rights under this Section or, upon written notice to Tenant, elect to cause Tenant’s right to extend to be extinguished, in which event this Lease shall terminate as
of the originally scheduled date of expiration. Should Landlord elect the latter, then this Lease shall terminate upon the scheduled date of expiration and Tenant’s rights under this paragraph shall be of no further force or effect. 

Any attempt to assign or transfer any right or interest created by this paragraph to other than an Affiliate shall be void from its inception.
Tenant shall have no other right to extend the Term beyond the single 60 month extension created by this paragraph. Unless agreed to in a writing signed by Landlord and Tenant, any extension of the Term, whether created by an amendment to this Lease
or by a holdover of the Premises by Tenant, or otherwise, shall be deemed a part of, and not in addition to, any duly exercised extension period permitted by this Section. Tenant’s Right to Extend is subject and subordinate to the expansion
rights (whether such rights are designated as a right of first offer, right of first refusal, expansion option or otherwise) of any tenant of the Building existing on the date hereof. Time is specifically made of the essence of this Section. 

2. FITNESS CENTER AND SHOWER FACILITY. Subject to the provisions of this Section 2, so long as Tenant is not in Default under this Lease, and
provided Tenant’s employees execute Landlord’s standard waiver of liability form and pay the applicable one time or monthly fee, if any, then Tenant’s employees (the “Fitness Center Users”) shall be entitled to use
the fitness center (the “Fitness Center”) and the shower facility (the “Shower Facility”) located at the Project. No separate charges shall be assessed to Fitness Center Users for the use of the Fitness Center (with
the exception of towel/laundry fees, if any) during the initial Term of this Lease, provided, however, that the costs of operating, maintaining and repairing the Fitness Center shall be included as part of Operating Expenses. The use of the Fitness
Center and Shower Facility shall be subject to the reasonable rules and regulations (including rules regarding hours of use) established from time to time by Landlord. Landlord and Tenant acknowledge that the use of the Fitness Center by the Fitness
Center Users shall be at their own risk and that the terms and provisions of Section 10.2 of this Lease shall apply to Tenant and the Fitness Center User’s use of the Fitness Center. Tenant acknowledges that the provisions of this Section
shall not be deemed to be a representation by Landlord that Landlord shall continuously maintain the Fitness Center (or any other fitness facility) and Shower Facility throughout the Term of this Lease, and Landlord shall have the right, at
Landlord’s sole discretion, to expand, contract, eliminate or otherwise modify the Fitness Center. No expansion, contraction, elimination or modification of the Fitness Center, and no termination of Tenant’s or the Fitness Center
Users’ rights to the Fitness Center shall entitle Tenant to an abatement or reduction in Basic Rent constitute a constructive eviction, or result in an event of default by Landlord under this Lease. Tenant hereby voluntarily releases,
discharges, waives and relinquishes any and all actions or causes of action for personal injury or property damage occurring to Tenant or its employees or agents arising as a result of the use of the Fitness Center and Shower Facility, or any
activities incidental thereto, wherever or however the same may occur, and further agrees that Tenant will not prosecute any claim for personal injury or property damage against Landlord or any of its officers, agents, servants or employees for any
said causes of action. It is the intention of Tenant with respect to the Fitness Center and Shower Facility to exempt and relieve Landlord from liability for personal injury or property damage caused by negligence. 

3. BALCONY. Tenant acknowledges and agrees that (i) Tenant has access to certain balconies located on the Premises; (ii) Tenant is
responsible for supervising and controlling access to the balconies by Tenant’s employees, officers, directors, shareholders, agents, representatives, contractors and/or invitees; (iii) Landlord is not responsible for supervising and
controlling access to the balconies, and (iv) Tenant assumes the risk for any loss, claim, damage or liability arising out of the use or misuse of the balconies by Tenant’s employees, officers, directors, shareholders, agents,
representatives, contractors and/or invitees, and Tenant releases and discharges Landlord from and against any such loss, claim, damage or liability. Tenant further agrees to indemnify, defend and hold Landlord harmless from and against any and all
losses and claims relating to or arising out of the use or misuse of the balconies by Tenant or Tenant’s employees, officers, shareholders, directors, agents, representatives, contractors and/or invitees. Tenant shall have not have the right to
install and use outdoor furniture and planters on the balconies. Tenant furthermore agrees (a) not to store or place any personal property or other items upon said balconies without the prior consent of Landlord, which may be withheld in
Landlord’s sole discretion, (b) to use and keep the appearance of the balconies in a manner consistent with a first-class office building, (c) not to use the balcony as an area for people to congregate or as a smoking area or for
other similar purposes, and (d) not to keep the balcony door(s) ajar. 

  

					
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 EXHIBIT X 

WORK LETTER 
 Landlord
shall cause its contractor to make improvements to the Premises as may be specified by Tenant and approved by Landlord not later than March 1, 2017 (the “Tenant Improvements”); it being understood that the Tenant Improvements
shall be substantially in conformity with Exhibit X-1 hereto. Landlord’s total contribution for the Tenant Improvements, inclusive of space planning costs and Landlord’s construction
management fee, shall not exceed $100,557.00 (“Landlord Contribution”), and any additional cost shall be borne solely by Tenant and paid to Landlord prior to the commencement of construction. It is understood that Landlord shall be
entitled to a supervision/administrative fee equal to 3% of the total construction cost, which fee shall be paid from the Landlord Contribution. Notwithstanding the foregoing, Tenant may utilize a portion of the Landlord Contribution not to exceed
$33,519.00 toward the out-of-pocket expenses incurred by Tenant for relocating to the Premises, including furniture moving and data cabling costs. Tenant shall be
reimbursed for such expenses by submitting copies of all supporting third-party invoices to Landlord by June 30, 2017. Landlord shall reimburse Tenant in one installment within 30 days following receipt of all such invoices. Tenant understands
and agrees that should the cost of the completion of the Tenant Improvements be less than the maximum amount provided for the Landlord Contribution or remains after June 30, 2017, such savings shall inure to the benefit of Landlord and Tenant
shall not be entitled to any credit or payment or to apply the savings toward additional work. Unless otherwise agreed in writing by Landlord, all materials and finishes utilized in constructing the Tenant Improvements shall be Landlord’s
building standard. Should Landlord submit any additional plans, equipment specification sheets, or other matters to Tenant for approval or completion, Tenant shall respond in writing, as appropriate, within 3 business days unless a shorter period is
provided herein. Tenant shall not unreasonably withhold its approval of any matter, and any disapproval shall be with reasons specified. Landlord may require that one or more designated subtrades be union contractors. 

Notwithstanding the foregoing, in the event Tenant provides a certified balance sheet evidencing at least $10,000,000.00 of funding on or
prior to January 31, 2018, then Landlord shall provide an additional tenant improvement allowance equal to $33,519.00 (based upon $3.00 per rentable square foot of the Premises) (the “Additional Allowance”). Any Additional
Allowance remaining 6 months after the date of Landlord’s funding shall inure to the benefit of Landlord and Tenant shall not be entitled to any credit or payment or to apply the savings toward additional work. Upon Landlord’s request,
Tenant shall execute an amendment to the Lease or other document to memorialize the Additional Allowance. 
 In the event that Tenant
requests any changes or additional work (“Changes”), then provided such Change is acceptable to Landlord, Landlord shall advise Tenant by written change order of any additional cost and/or Tenant Delay (as defined below) such change
would cause. Tenant shall approve or disapprove such change order in writing within 2 business days following its receipt. Tenant’s approval of a change order shall not be effective unless accompanied by payment in full of the additional cost
of the Tenant Improvement work resulting from the change order, regardless of any unutilized portion of the Landlord Contribution. It is understood that Landlord shall have no obligation to interrupt or modify the Tenant Improvement work pending
Tenant’s approval of a change order. 
 Notwithstanding any provision in the Lease to the contrary, if Tenant fails to comply with any
of the time periods specified in this Work Letter, requests any Changes to the work, fails to make timely payment of any sum due hereunder, furnishes inaccurate or erroneous specifications or other information, or otherwise delays in any manner the
completion of the Tenant Improvements or the issuance of an occupancy certificate (any of the foregoing being referred to in this Lease as a “Tenant Delay”), then Tenant shall bear any resulting additional construction cost or other
expenses and the Commencement Date shall be deemed to have occurred for all purposes, including Tenant’s obligation to pay Rent, as of the date Landlord reasonably determines that it would have been able to deliver the Premises to Tenant but
for the collective Tenant Delays. 
 Landlord shall permit Tenant and its agents to enter the Premises up to 5 days prior to the
Commencement Date of the Lease in order that Tenant may perform any work to be performed by Tenant hereunder through its own contractors, subject to Landlord’s prior written approval, and in a manner and upon terms and conditions and at times
satisfactory to Landlord’s representative. The foregoing license to enter the Premises prior to the Commencement Date is, however, conditioned upon Tenant’s contractors and their subcontractors and employees working in harmony and not
interfering with the work being performed by Landlord. If at any time that entry shall cause disharmony or interfere with the work being performed by Landlord, this license may be withdrawn by Landlord upon 24 hours written notice to Tenant. That
license is further conditioned upon the compliance by Tenant’s contractors with all requirements imposed by Landlord on third party contractors, including without limitation the maintenance by Tenant and its contractors and subcontractors of
workers’ compensation and public liability and property damage insurance in amounts and with companies and on forms satisfactory to Landlord, with certificates of such insurance being furnished to Landlord prior to proceeding with any such
entry. The entry shall be deemed to be under all of the provisions of the Lease except as to the covenants to pay Rent unless Tenant commences business activities in the Premises. Landlord shall not be liable in any way for any injury, loss or
damage which may occur to any such work being performed by Tenant, the same being solely at Tenant’s risk. In no event shall the failure of Tenant’s contractors to complete any work in the Premises extend the Commencement Date. 

Tenant hereby designates Xiaodi Hou, Telephone No. (858) 230-1684, as its representative, agent and attorney-in-fact for the purpose of receiving notices, approving submittals and issuing requests for Changes, and Landlord shall be entitled to rely upon authorizations and
directives of such person(s) as if given by Tenant. Tenant may amend the designation of its construction representative(s) at any time upon delivery of written notice to Landlord. 

  

					
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 EXHIBIT X-1 

 
 

 
  

  

					
	IOPLEGAL-4-44	  	4	  	12/13/16 - 245927 - 0.2

 FIRST AMENDMENT 

THIS FIRST AMENDMENT (the “Amendment”) is made and entered into as of January 22, 2019, by and between LJ GATEWAY
OFFICE LLC, a Delaware limited liability company (“Landlord”) and TUSIMPLE, a California corporation (“Tenant”). 

RECITALS 
  

	A.	 Landlord and Tenant (as successor in interest to Tusimple LLC, a California limited liability company) are
parties to that certain lease dated December 16, 2016 (the “Lease”). Pursuant to the Lease, Landlord has leased to Tenant space currently containing approximately 11,173 rentable square feet (the “Original
Premises”) described as Suite No. 600 on the 6th floor of the building located at 9191 Towne Centre Drive, San Diego, California (the “Building”).

  

	B.	 Tenant has requested that additional space containing approximately 3,643 rentable square feet described
as Suite No. 550 on the 5th floor of the Building shown on Exhibit A hereto (the “Expansion Space”) be added to the Original Premises and that the Lease be
appropriately amended and Landlord is willing to do the same on the following terms and conditions. 

  

	C.	 The Lease by its terms shall expire on March 31, 2019 (“Prior Expiration Date”), and the
parties desire to extend the Term of the Lease, all on the following terms and conditions. 

 NOW, THEREFORE, in
consideration of the above recitals which by this reference are incorporated herein, the mutual covenants and conditions contained herein and other valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Landlord and
Tenant agree as follows: 
  

	I.	 Expansion and Effective Date. 

 

	 	A.	 The Term for the Expansion Space shall commence (“Expansion Effective Date”) on the earlier of
(a) the date the Expansion Space is deemed ready for occupancy pursuant to Section I.B below, or (b) the date Tenant commences its business activities within the Expansion Space, and shall expire upon the Extended Expiration Date
(hereinafter defined). The Expansion Effective Date is estimated to be February 1, 2019 (“Estimated Expansion Effective Date”). Promptly following request by Landlord, the parties shall memorialize on a form provided by
Landlord (the “Expansion Effective Date Memorandum”) the actual Expansion Effective Date; should Tenant fail to execute and return the Expansion Effective Date Memorandum to Landlord within five (5) business days (or provide
specific written objections thereto within that period), then Landlord’s determination of the Expansion Effective Date as set forth in the Expansion Effective Date Memorandum shall be conclusive. Effective as of the Expansion Effective Date,
the Premises, as defined in the Lease, shall be increased from 11,173 rentable square feet to 14,816 rentable square feet by the addition of the Expansion Space. 

 

	 	B.	 Delay in Possession. If Landlord, for any reason whatsoever, cannot deliver possession of Expansion
Space to Tenant on or before the Expansion Effective Date set forth in Section I.A above, this Amendment shall not be void or voidable nor shall Landlord be liable to Tenant for any resulting loss or damage. However, Tenant shall not be liable for
any rent for the Expansion Space and the Expansion Effective Date shall not occur until Landlord delivers possession of the Expansion Space and the Expansion Space is in fact ready for occupancy as defined below, except that if Landlord’s
failure to so deliver possession is attributable to any action or inaction by Tenant (including without limitation any Tenant Delay described in the Work Letter, if any, attached to this Amendment), then the Expansion Space shall be deemed ready for
occupancy, and Landlord shall be entitled to full performance by Tenant (including the payment of rent), as of the date Landlord would have been able to deliver the Expansion Space to Tenant but for Tenant’s delay(s). Subject to the foregoing,
the Expansion Space shall be deemed “ready for occupancy” when Landlord, to the extent applicable, has substantially completed all of the tenant improvements required to be completed by Landlord pursuant to Exhibit A-1 (Space Plan) attached to this Amendment but for minor punch list matters, and has obtained the requisite governmental approvals for Tenant’s occupancy in connection with such work.

  

	II.	 Extension. The Term of the Lease is hereby extended and shall expire on March 31,
2020 (“Extended Expiration Date”), unless sooner terminated in accordance with the terms of the Lease. That portion of the Term commencing the day immediately following the Prior Expiration Date (“Extension Date”)
and ending on the Extended Expiration Date shall be referred to herein as the “Extended Term”. 

  

	III.	 Basic Rent. 

 

	 	A.	 Original Premises From and After Extension Date. As of the Extension Date, the schedule of Basic Rent
payable with respect to the Original Premises during the Extended Term is the following: 

  

					
	 IOPLEGAL-4-44
	  	1	  	1/21/19 - Lease 245927, Amendment 252023 - 0.4

									
	 Months of Term or

Period
	  	Monthly Rate Per
Square Foot	 	  	Monthly Basic Rent	 
	 4/1/19 to 3/31/20
	  	$	3.15	 	  	$	35,195.00	 

 All such Basic Rent shall be payable by Tenant in accordance with the terms of the Lease. 

 

	 	B.	 Expansion Space From Expansion Effective Date Through Extended Expiration Date. As of the Expansion
Effective Date, the schedule of Basic Rent payable with respect to the Expansion Space for the balance of the original Term and the Extended Term is the following: 

 

									
	 Months of Term or

Period
	  	Monthly Rate Per
Square Foot	 	  	Monthly Basic Rent	 
	 2/1/19 to 1/31/20
	  	$	2.95	 	  	$	10,747.00	 
	 2/1/20 to 3/31/20
	  	$	3.08	 	  	$	11,220.00	 

 All such Basic Rent shall be payable by Tenant in accordance with the terms of the Lease. 

 

	IV.	 Project Costs and Property Taxes. 

 

	 	A.	 Original Premises for the Extended Term. Effective as of the Extension Date, the following shall be
added to Item 7 of Article 1 of the Lease with respect to the Original Premises: 

 “Property Tax Base: The Property
Taxes per rentable square foot incurred by Landlord and attributable to the twelve month period ending June 30, 2020 (the “Base Year”). 

Project Cost Base: The Project Costs per rentable square foot incurred by Landlord and attributable to the twelve month period ending
June 30, 2020. 
 Expense Recovery Period: Every twelve (12) month period during the Term (or portion thereof during the first and
last Lease years) ending June 30.” 
 Notwithstanding the foregoing, Landlord hereby agrees that Tenant shall not be responsible for
Tenant’s Share of Operating Expense excess accruing in connection with the Original Premises during the 12 month period commencing as of the Extension Date. 
  

	 	B.	 Expansion Space From Expansion Effective Date Through Extended Expiration Date. Effective as of the
Expansion Effective Date, the following shall be added to Item 7 of Article 1 of the Lease with respect to the Expansion Space: 

“Property Tax Base: The Property Taxes per rentable square foot incurred by Landlord and attributable to the twelve month period ending
June 30, 2019 (the “Base Year”). 
 Project Cost Base: The Project Costs per rentable square foot incurred by Landlord
and attributable to the twelve month period ending June 30, 2019. 
 Expense Recovery Period: Every twelve (12) month period during
the Term (or portion thereof during the first and last Lease years) ending June 30.” 
 Notwithstanding the foregoing, Landlord hereby
agrees that Tenant shall not be responsible for Tenant’s Share of Operating Expense excess accruing in connection with the Expansion Space during the 12 month period commencing as of the Expansion Effective Date. 

 

	V.	 Additional Security Deposit. Concurrently with Tenant’s delivery of this Amendment,
Tenant shall deliver the sum of $12,342.00 to Landlord, which sum shall be added to the Security Deposit presently being held by Landlord in accordance with Section 4.3 of the Lease. Accordingly, the Security Deposit is increased from
$74,457.00 to $86,799.00. 

  

	VI.	 Improvements. 

 

	 	A.	 Condition of the Original Premises. Tenant acknowledges that it is currently occupying the Original
Premises and that it is satisfied with the condition thereof. Tenant waives any right or claim against Landlord arising out of the condition of the Original Premises. 

 

	 	B.	 Condition of Expansion Space. Tenant has inspected the Expansion Space and agrees to accept the same
“as is” without any agreements, representations, understandings or obligations on the part of Landlord to perform any alterations, repairs or improvements, except as may be expressly provided otherwise in this Amendment.

  

	 	C.	 Alterations. Any construction, alterations or improvements to the Original Premises and/or the Expansion
Space shall be performed by Tenant at its sole cost and expense using contractors selected by Tenant and approved by Landlord and shall be governed in all respects by the provisions of Section 7.3 of the Lease. 

  

					
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	VII.	 Other Pertinent Provisions. Landlord and Tenant agree that, effective as of the date of
this Amendment (unless different effective date(s) is/are specifically referenced in this Section), the Lease shall be amended in the following additional respects: 

 

	 	A.	 Parking. Notwithstanding any contrary provision in Exhibit F to the Lease,
“Parking,” effective as of the Expansion Effective Date, Landlord shall lease to Tenant, and Tenant shall lease from Landlord, a total of 51 unreserved parking passes for the Original Premises and the Expansion Space at the rate of $60.00
per pass, per month through the Extended Expiration Date. Thereafter, the parking charge shall be at Landlord’s scheduled parking rates from time to time. 

 

	 	B.	 SDN List. Landlord and Tenant hereby represent and warrant that neither it nor any
officer, director, employee, partner, member or other principal is listed as a Specially Designated National and Blocked Person (“SDN”) on the list of such persons and entities issued by the U.S. Treasury Office of Foreign Assets
Control (OFAC). 

  

	 	C.	 Right to Extend. Section 1 (Right to Extend) of Exhibit G of the Lease shall remain
in full force and effect during the Extended Term. 

  

	 	D.	 Early Entry. Following the full execution of this Amendment and payment of all deposits
due hereunder, Tenant shall be permitted to enter the Expansion Space up to 14 days prior to the Expansion Effective Date in order that Tenant may install its telephones, furniture, equipment and computers. Tenant’s access to the Expansion
Space prior to the Expansion Effective Date shall be subject to all of the terms and obligations in the Lease, including the indemnity provisions therein, except that Tenant shall not be required to pay Basic Rent for the Expansion Space during that
period unless it commences its business activities in the Expansion Space. 

  

	 	E.	 Space Planning and Substitution. Provided Tenant leases and occupies the entire Original
Premises, Landlord shall not have the right to relocate Tenant from the Original Premises during the Extended Term. 

  

	 	F.	 Guarantee of Lease. Provided Guarantor, Xiodi Hou, an individual, executes and delivers a
new guarantee of lease concurrently with this Amendment, the Guarantee of Lease dated December 16, 2016 shall be of no further force or effect. 

  

	VIII.	 GENERAL. 

 

	 	A.	 Effect of Amendments. The Lease shall remain in full force and effect except to the extent that it is
modified by this Amendment. 

  

	 	B.	 Entire Agreement. This Amendment embodies the entire understanding between Landlord and Tenant and can
be changed only by a writing signed by Landlord and Tenant. There have been no additional oral or written representations or agreements. Under no circumstances shall Tenant be entitled to any rent abatement, improvement allowance, leasehold
improvements, or any similar economic incentives that may have been provided Tenant in connection with entering into the Lease, unless specifically set forth in this Amendment. 

 

	 	C.	 Counterparts; Digital Signatures. If this Amendment is executed in counterparts, each is hereby declared
to be an original; all, however, shall constitute but one and the same amendment. In any action or proceeding, any photographic, photostatic, or other copy of this Amendment may be introduced into evidence without foundation. The parties agree to
accept a digital image (including but not limited to an image in the form of a PDF, JPEG, GIF file, or other e-signature) of this Amendment, if applicable, reflecting the execution of one or both of the
parties, as a true and correct original. 

  

	 	D.	 Defined Terms. All words commencing with initial capital letters in this Amendment and defined in the
Lease shall have the same meaning in this Amendment as in the Lease, unless they are otherwise defined in this Amendment. 

  

	 	E.	 Authority. If Tenant is a corporation, limited liability company or partnership, or is comprised of any
of them, each individual executing this Amendment for the corporation, limited liability company or partnership represents that he or she is duly authorized to execute and deliver this Amendment on behalf of such entity and that this Amendment is
binding upon such entity in accordance with its terms. 

  

	 	F.	 California Certified Access Specialist Inspection. Pursuant to California Civil Code § 1938,
Landlord hereby states that the Premises have not undergone inspection by a Certified Access Specialist (CASp) (defined in California Civil Code § 55.52(a)(3)). Pursuant to Section 1938 of the California Civil Code, Landlord hereby
provides the following notification to Tenant: “A Certified Access Specialist (CASp) can inspect the subject premises and determine whether the subject premises comply with all of the applicable construction-related accessibility standards
under state law. Although 

  

					
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	  	3	  	1/21/19 - Lease 245927, Amendment 252023 - 0.4

 state law does not require a CASp inspection of the subject premises, the commercial
property owner or lessor may not prohibit the lessee or tenant from obtaining a CASp inspection of the subject premises for the occupancy or potential occupancy of the lessee or tenant, if requested by the lessee or tenant. The parties shall
mutually agree on the arrangements for the time and manner of the CASp inspection, the payment of the fee for the CASp inspection, and the cost of making any repairs necessary to correct violations of construction related accessibility standards
within the premises.” 
  

	 	G.	 Attorneys’ Fees. The provisions of the Lease respecting payment of attorneys’ fees shall also
apply to this Amendment. 

  

	 	H.	 Brokers. Article 18 of the Lease is amended to provide that the parties recognize the following parties
as the brokers who negotiated this Amendment, and agree that Landlord shall be responsible for payment of brokerage commissions to such brokers pursuant to its separate agreements with such brokers: Irvine Management Company
(“Landlord’s Broker”) is the agent of Landlord exclusively and Hughes Marino, Inc. (“Tenant’s Broker”) is the agent of Tenant exclusively. By the execution of this Amendment, each of Landlord and Tenant
hereby acknowledge and confirm (a) receipt of a copy of a Disclosure Regarding Real Estate Agency Relationship conforming to the requirements of California Civil Code 2079.16, and (b) the agency relationships specified herein, which
acknowledgement and confirmation is expressly made for the benefit of Tenant’s Broker. By the execution of this Amendment, Landlord and Tenant are executing the confirmation of the agency relationships set forth herein. The warranty and
indemnity provisions of Article 18 of the Lease, as amended hereby, shall be binding and enforceable in connection with the negotiation of this Amendment. 

  

	 	I.	 Execution of Amendment. Submission of this Amendment by Landlord is not an offer to enter into this
Amendment but rather is a solicitation for such an offer by Tenant. Landlord shall not be bound by this Amendment until Landlord has executed and delivered the same to Tenant. 

 

	 	J.	 Nondisclosure of Terms. Tenant agrees that neither Tenant nor its agents or any other parties acting on
behalf of Tenant shall disclose any matters set forth in this Amendment or disseminate or distribute any information concerning the terms, details or conditions hereof to any person, firm or entity without obtaining the express written consent of
Landlord. 

  

	 	K.	 Guarantee. At Landlord’s option, this Amendment shall be of no force and effect unless a new
guarantee of lease is concurrently executed by Guarantor. 

 IN WITNESS WHEREOF, Landlord and Tenant have duly
executed this Amendment as of the day and year first above written. 
  

									
	LANDLORD:	 		 	TENANT:
			
	LJ GATEWAY OFFICE LLC	 		 	TUSIMPLE
	a Delaware limited liability company	 		 	a California corporation
					
	By	 	 /s/ Steven M. Case
	 		 	By 	 	 /s/ Xiaodi Hou

		 	Steven M. Case	 		 	Printed Name Xiaodi Hou
		 	Executive Vice President Office Properties	 		 	Title:	 	President                         Jan. 21 2019
					
	By	 	 /s/ Kristopher J. Kopensky
	 		 	By	 	
		 	Kristopher J. Kopensky	 		 	Printed Name
		 	Vice President, Operations Office Properties	 		 	Title	 	

  

					
	IOPLEGAL-4-44	  	4	  	1/21/19 - Lease 245927, Amendment 252023 - 0.4

 EXHIBIT A 

OUTLINE AND LOCATION OF EXPANSION SPACE 

9191 Towne Centre Drive, Suite 550 
  

 

  

					
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 EXHIBIT A-1 

SPACE PLAN 
  

 

  

					
	 IOPLEGAL-4-44
	  	6	  	1/21/19 - Lease 245927, Amendment 252023 - 0.4

 SECOND AMENDMENT 

THIS SECOND AMENDMENT (the “Amendment”) is made and entered into as of March 27, 2019, by and between LJ
GATEWAY OFFICE LLC, a Delaware limited liability company (“Landlord”) and TUSIMPLE, a California corporation (“Tenant”). 

RECITALS 
  

	A.	 Landlord and Tenant (as successor in interest to Tusimple LLC, a California limited liability company) are
parties to that certain lease dated December 16, 2016, which lease is amended by that certain First Amendment dated January 22, 2019 (collectively, the “Lease”). Pursuant to the Lease, Landlord has leased to Tenant space
currently containing approximately 14,816 rentable square feet (the “Original Premises”) described as Suite Nos.550 and 600 on the 5th and 6th floors of the building located at 9191 Towne Centre Drive, San Diego, California (the “Building”). 

 

	B.	 Tenant has requested that additional space containing approximately 12,492 rentable square feet
described as Suite No. 401 (approximately 6,598 rentable square feet), Suite No. 408 (approximately 1,603 rentable square feet) and Suite No. 409 (approximately 4,291 rentable square feet) on the 4th floor of the Building shown on Exhibit A hereto (collectively, the “Fourth Floor Expansion Space”) be added to the Original Premises and that the Lease be appropriately
amended and Landlord is willing to do the same on the following terms and conditions. 

  

	C.	 The Lease by its terms shall expire on March 31, 2020 (“Second Prior Expiration Date”),
and the parties desire to extend the Term of the Lease, all on the following terms and conditions. 

 NOW,
THEREFORE, in consideration of the above recitals which by this reference are incorporated herein, the mutual covenants and conditions contained herein and other valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, Landlord and Tenant agree as follows: 
  

	I.	 Expansion and Effective Date. 

 

	 	A.	 The Term for the Fourth Floor Expansion Space shall commence (“Fourth Floor Expansion Effective
Date”) on September 1, 2019 (“Estimated Fourth Floor Expansion Effective Date”) and end on the Second Extended Expiration Date (hereinafter defined). The Fourth Floor Expansion Space is subject to all the terms and
conditions of the Lease except as expressly modified herein. Effective as of the Fourth Floor Expansion Effective Date, the Premises, as defined in the Lease, shall be increased from 14,816 rentable square feet to 27,308 rentable square feet
by the addition of the Fourth Floor Expansion Space. 

  

	 	B.	 Delay in Possession. The Fourth Floor Expansion Effective Date shall be delayed to the extent that
Landlord fails to deliver possession of the Fourth Floor Expansion Space for any reason, including but not limited to, holding over by prior occupants. Any such delay in the Fourth Floor Expansion Effective Date shall not subject Landlord to any
liability for any loss or damage resulting therefrom. 

  

	II.	 Extension. The Term of the Lease is hereby extended and shall expire on March 31,
2024 (“Second Extended Expiration Date”), unless sooner terminated in accordance with the terms of the Lease. That portion of the Term commencing the day immediately following the Second Prior Expiration Date (“Second
Extension Date”) and ending on the Second Extended Expiration Date shall be referred to herein as the “Second Extended Term”. 

  

	III.	 Basic Rent. 

 

	 	A.	 Original Premises From and After Second Extension Date. As of the Second Extension Date, the schedule of
Basic Rent payable with respect to the Original Premises during the Second Extended Term is the following: 

  

									
	 Months of Term or Period
	  	Monthly Rate Per
Square Foot	 	  	Monthly Basic Rent	 
	 4/1/20-3/31/21
	  	$	3.27	 	  	$	48,448.00	 
	 4/1/21-3/31/22
	  	$	3.42	 	  	$	50,671.00	 
	 4/1/22-3/31/23
	  	$	3.57	 	  	$	52,893.00	 
	 4/1/23-3/31/24
	  	$	3.73	 	  	$	55,264.00	 

 All such Basic Rent shall be payable by Tenant in accordance with the terms of the Lease. 

  

					
	IOPLEGAL -4-44	  	1	  	3/26/19 - Lease 245927 , Amendment 253127 -0.4

	 	B.	 Fourth Floor Expansion Space From Fourth Floor Expansion Effective Date Through Second Extended Expiration
Date. As of the Fourth Floor Expansion Effective Date, the schedule of Basic Rent payable with respect to the Fourth Floor Expansion Space is the following: 

 

									
	 Months of Term or Period
	  	Monthly Rate Per
Square Foot	 	  	Monthly Basic Rent	 
	 9/1/19 to 8/31/20
	  	$	3.10	 	  	$	38,725.00	 
	 9/1/20 to 8/31/21
	  	$	3.24	 	  	$	40,474.00	 
	 9/1/21 to 8/31/22
	  	$	3.39	 	  	$	42,348.00	 
	 9/1/22 to 8/31/23
	  	$	3.54	 	  	$	44,222.00	 
	 9/1/23 to 3/31/24
	  	$	3.70	 	  	$	46,220.00	 

 All such Basic Rent shall be payable by Tenant in accordance with the terms of the Lease. 

 

	IV.	 Project Costs and Property Taxes. 

 

	 	A.	 Original Premises for the Second Extended Term. During the Second Extended Term, the following shall be
added to Item 7 of Article 1 of the Lease with respect to the Original Premises: 

 “Property Tax Base: The Property
Taxes per rentable square foot incurred by Landlord and attributable to the twelve month period ending June 30, 2020 (the “Base Year”). 

Project Cost Base: The Project Costs per rentable square foot incurred by Landlord and attributable to the twelve month period ending
June 30, 2020. 
 Expense Recovery Period: Every twelve (12) month period during the Term (or portion thereof during the first and
last Lease years) ending June 30. 
 Notwithstanding the foregoing, Tenant shall not be obligated to pay Tenant’s Share of Operating
Expense increases with respect to the Original Premises during the 12 month period commencing on the Second Extension Date.” 
  

	 	B.	 Fourth Floor Expansion Space From Fourth Floor Expansion Effective Date Through Second Extended Expiration
Date. Effective as of the Fourth Floor Expansion Effective Date, the following shall be added to Item 7 of Article 1 of the Lease with respect to the Fourth Floor Expansion Space: 

“Property Tax Base: The Property Taxes per rentable square foot incurred by Landlord and attributable to the twelve month period ending
June 30, 2020 (the “Base Year”). 
 Project Cost Base: The Project Costs per rentable square foot incurred by Landlord
and attributable to the twelve month period ending June 30, 2020. 
 Expense Recovery Period: Every twelve (12) month period during
the Term (or portion thereof during the first and last Lease years) ending June 30. 
 Notwithstanding the foregoing, Tenant shall not be
obligated to pay Tenant’s Share of Operating Expense increases with respect to the Fourth Floor Expansion Space during the 12 month period commencing on the Fourth Floor Expansion Effective Date.” 

 

	V.	 Additional Security Deposit. Concurrently with Tenant’s delivery of this Amendment,
Tenant shall deliver the sum of $24,833.00 to Landlord, which sum shall be added to the Security Deposit presently being held by Landlord in accordance with Section 4.3 of the Lease. Accordingly, the Security Deposit is increased from
$86,799.00 to $111,632.00. 

  

	VI.	 Letter of Credit. In addition to the cash Security Deposit, Tenant shall deliver to
Landlord, concurrently with Tenant’s execution of this Amendment, a letter of credit in the amount of $250,000.00, which letter of credit shall be in form and with the substance of Exhibit B attached hereto. The letter of credit
shall be issued by a financial institution acceptable to Landlord with a branch in San Diego County, California, at which draws on the letter of credit will be accepted. The letter of credit shall provide for automatic yearly renewals throughout the
Term of this Lease and shall have an outside expiration date (if any) that is not earlier than 30 days after the expiration of the Lease Term. In the event the letter of credit is not continuously renewed through the period set forth above, or upon
any breach under this Lease by Tenant, including specifically Tenant’s failure to pay Rent or to abide by its obligations under Sections 7.1 and 15.2 below and provided Landlord gives Tenant notice and 3 days to cure, Landlord shall be entitled
to draw upon said letter of credit by the issuance of Landlord’s sole written demand to the issuing financial institution. Any such draw shall be without waiver of any rights Landlord may have under this Lease or at law or in equity as a result
of any Default hereunder by Tenant. Landlord shall authorize a reduction to the Letter of Credit in the amount of $150,000.00 on September 1, 2021; provided that any such reduction shall be conditioned upon (i) Tenant not having been in
default 

  

					
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under this Lease at any time and (ii) a written request for such reduction having been submitted to Landlord not earlier than 30 days prior to the applicable reduction date.

  

	VII.	 Improvements to Original Premises and Fourth Floor Expansion Space. 

 

	 	A.	 Condition of Original Premises and Fourth Floor Expansion Space. Tenant acknowledges that it is
currently occupying the Original Premises and that it is satisfied with the condition thereof. Tenant waives any right or claim against Landlord arising out of the condition of the Original Premises. Tenant has inspected the Fourth Floor Expansion
Space and agrees to accept the same “as is” without any agreements, representations, understandings or obligations on the part of Landlord to perform any alterations, repairs or improvements, except as may be expressly provided otherwise
in this Amendment. Landlord warrants to Tenant that the fire sprinkler system, lighting, heating, ventilation and air conditioning systems and electrical systems serving the Fourth Floor Expansion Space, shall be in good operating condition as of
the day the Fourth Floor Expansion Space is delivered to Tenant. 

  

	 	B.	 Tenant Improvements. Tenant shall be permitted to construct the Tenant Improvements for the Original
Premises and Fourth Floor Expansion Space in accordance with the provisions of Exhibit C, Work Letter, attached hereto. 

  

	VIII.	 Other Pertinent Provisions. Landlord and Tenant agree that, effective as of the date of
this Amendment (unless different effective date(s) is/are specifically referenced in this Section), the Lease shall be amended in the following additional respects: 

 

	 	A.	 Parking. Notwithstanding any contrary provision in Exhibit F to the Lease, “Parking,” (i)
effective as of the Fourth Floor Expansion Effective Date, Landlord shall lease to Tenant, and Tenant shall lease from Landlord, additional parking spaces consisting of a minimum of 35, but no more than 54 unreserved parking passes for the Fourth
Floor Expansion Space at the rate of $60.00 per pass, per month through the Second Extended Expiration Date and (ii) during the Second Extended Term, 51 unreserved parking passes for the Original Premises at the rate of $60.00 per pass, per
month. Thereafter, the parking charge shall be at Landlord’s scheduled parking rates from time to time. In addition but subject to the month-to-month availability
of such parking as determined by Landlord, Tenant shall have the right to purchase such additional parking passes for unreserved parking as Tenant shall request from Landlord (the “Additional Parking Passes”) by providing written
notice of such election to Landlord at any time following the date of this. The parking charge for the Additional Parking Passes shall be at Landlord’s scheduled parking rates from time to time. 

 

	 	B.	 Eyebrow Signage. Provided Tenant is not in Default of the Lease, Tenant shall have the right to one slot
on the non-exclusive exterior eyebrow sign at the Building (the “Eyebrow Signage”), which signage shall consist only of the name “TUSIMPLE.” The type and design of such signage shall
be subject to the prior written approval of Landlord, Tenant and the City of San Diego, and shall be consistent with Landlord’s signage criteria for the Project. Fabrication, installation, insurance, and maintenance of such signage shall be at
Tenant’s sole cost and expense. Tenant understands and agrees that it shall use one of Landlord’s approved contractors for installing the Eyebrow Signage. Should Tenant fail to have the Eyebrow Signage installed within 12 months of the
Fourth Floor Expansion Effective Date, then Tenant’s right to install same thereafter shall be deemed null and void. Except for the foregoing and for the Monument Signage (defined in Section VIII.C. below), no sign, advertisement or notice
visible from the exterior of the Premises shall be inscribed, painted or affixed by Tenant on any part of the Premises without the prior consent of Landlord. Tenant’s signage right shall belong solely to TuSimple, a California corporation and
may not be transferred or assigned without Landlord’s prior written consent which may be withheld by Landlord in Landlord’s sole discretion. In the event Tenant, exclusive of any subtenant(s), fails to occupy at least 80% of the Floor Area
of Premises, then Tenant shall, within 30 days following notice from Landlord, remove the Eyebrow Signage at Tenant’s expense. Tenant shall also remove such signage promptly following the expiration or earlier termination of the Lease. Any such
removal shall be at Tenant’s sole expense, and Tenant shall bear the cost of any resulting repairs to the Building that are reasonably necessary due to the removal. 

 

	 	C.	 Monument Signage. Provided Tenant is not in Default of the Lease, Tenant shall have the right to install
non-exclusive signage on one slot of the Building monument facing Towne Centre Drive), which signage shall consist only of the name “TUSIMPLE.” The type, location and design of such signage shall be
subject to the prior written approval of Landlord, Tenant and the City of San Diego, and shall be consistent with Landlord’s signage criteria for the Project. Fabrication, installation, insurance, and maintenance of such signage shall be at
Tenant’s sole cost and expense. Tenant understands and agrees that it shall use one of Landlord’s approved contractors for installing the monument signage. Should Tenant fail to have the monument signage installed within 8 months of the
Fourth Floor Expansion Effective Date, then Tenant’s right to install same thereafter shall be deemed null and void. Except for the foregoing, no sign, advertisement or notice visible from the exterior of the Premises shall be inscribed,

  

					
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painted or affixed by Tenant on any part of the Premises without prior consent of Landlord. Tenant’s signage right shall belong solely to TuSimple, a California corporation and may not be
transferred or assigned without Landlord’s prior written consent, which may be withheld by Landlord in Landlord’s sole discretion. In the event Tenant, exclusive of any subtenant(s), fails to occupy at least 80% of the Floor Area of
Premises, then Tenant shall, within 30 days following notice from Landlord, remove the monument signage at Tenant’s expense. Tenant shall also remove such signage promptly following the expiration or earlier termination of the Lease. Any such
removal shall be at Tenant’s sole expense, and Tenant shall bear the cost of any resulting repairs to the monument that are reasonably necessary due to the removal. 

 

	 	D.	 SDN List. Tenant hereby represents and warrants that neither Tenant nor any officer, director, employee,
partner, member or other principal of Tenant (collectively, “Tenant Parties”) is listed as a Specially Designated National and Blocked Person (“SDN”) on the list of such persons and entities issued by the U.S.
Treasury Office of Foreign Assets Control (OFAC). 

  

	 	E.	 Right to Extend. Section 1 (Right to Extend) of Exhibit G of the Lease shall also apply to the
Fourth Floor Expansion Space and shall remain in full force and effect during the Second Extended Term. 

  

	 	F.	 Guarantee of Lease. Effective upon Landlord’s receipt of the Letter of Credit required pursuant to
Section VI of this Amendment (the “Effective Date”), the limited Guarantee of Lease dated January 22, 2019 wherein Xiaodi Hou, an individual (“Hou”) provided a limited guarantee of the full and complete
performance of all terms, covenants and conditions of the Lease to Landlord shall be null and void and of no further force or effect; provided Hou shall remain liable for all of Hou’s obligations under the Lease up to and including the
Effective Date, even though notification for any obligation for which Hou shall continue to be liable, including notices of default of Tenant, may occur subsequent to such Effective Date. 

 

	IX.	 GENERAL. 

 

	 	A.	 Effect of Amendments. The Lease shall remain in full force and effect except to the extent that it is
modified by this Amendment. 

  

	 	B.	 Entire Agreement. This Amendment embodies the entire understanding between Landlord and Tenant and can
be changed only by a writing signed by Landlord and Tenant. There have been no additional oral or written representations or agreements. Under no circumstances shall Tenant be entitled to any rent abatement, improvement allowance, leasehold
improvements, or any similar economic incentives that may have been provided Tenant in connection with entering into the Lease, unless specifically set forth in this Amendment. 

 

	 	C.	 Counterparts; Digital Signatures. If this Amendment is executed in counterparts, each is hereby declared
to be an original; all, however, shall constitute but one and the same amendment. In any action or proceeding, any photographic, photostatic, or other copy of this Amendment may be introduced into evidence without foundation. The parties agree to
accept a digital image (including but not limited to an image in the form of a PDF, JPEG, GIF file, or other e-signature) of this Amendment, if applicable, reflecting the execution of one or both of the
parties, as a true and correct original. 

  

	 	D.	 Defined Terms. All words commencing with initial capital letters in this Amendment and defined in the
Lease shall have the same meaning in this Amendment as in the Lease, unless they are otherwise defined in this Amendment. 

  

	 	E.	 Authority. If Tenant is a corporation, limited liability company or partnership, or is comprised of any
of them, each individual executing this Amendment for the corporation, limited liability company or partnership represents that he or she is duly authorized to execute and deliver this Amendment on behalf of such entity and that this Amendment is
binding upon such entity in accordance with its terms. 

  

	 	F.	 California Certified Access Specialist Inspection. Pursuant to California Civil Code § 1938,
Landlord hereby states that the Premises have not undergone inspection by a Certified Access Specialist (CASp) (defined in California Civil Code § 55.52(a)(3)). Pursuant to Section 1938 of the California Civil Code, Landlord hereby
provides the following notification to Tenant: “A Certified Access Specialist (CASp) can inspect the subject premises and determine whether the subject premises comply with all of the applicable construction-related accessibility standards
under state law. Although state law does not require a CASp inspection of the subject premises, the commercial property owner or lessor may not prohibit the lessee or tenant from obtaining a CASp inspection of the subject premises for the occupancy
or potential occupancy of the lessee or tenant, if requested by the lessee or tenant. The parties shall mutually agree on the arrangements for the time and manner of the CASp inspection, the payment of the fee for the CASp inspection, and the cost
of making any repairs necessary to correct violations of construction related accessibility standards within the premises.” If Tenant requests to 

  

					
	IOPLEGAL-4-44	  	4	  	3/26/19 - Lease 245927, Amendment 253127 - 0.4

	 	
perform a CASp inspection of the Premises, Tenant shall, at its cost, retain a CASp approved by Landlord (provided that Landlord may designate the CASp, at Landlord’s option) to perform the
inspection of the Premises at a time agreed upon by the parties. Tenant shall provide Landlord with a copy of any report or certificate issued by the CASp (the “CASp Report”) and Tenant shall, at its cost, promptly complete any
modifications necessary to correct violations of construction related accessibility standards identified in the CASp Report, notwithstanding anything to the contrary in the Lease. Tenant agrees to keep the information in the CASp Report confidential
except as necessary for the Tenant to complete such modifications. 

  

	 	G.	 Attorneys’ Fees. The provisions of the Lease respecting payment of attorneys’ fees shall also
apply to this Amendment. 

  

	 	H.	 Brokers. Article 18 of the Lease is amended to provide that the parties recognize the following parties
as the brokers who negotiated this Amendment, and agree that Landlord shall be responsible for payment of brokerage commissions to such brokers pursuant to its separate agreements with such brokers: Irvine Management Company
(“Landlord’s Broker”) is the agent of Landlord exclusively and Hughes Marino, Inc. (“Tenant’s Broker”) is the agent of Tenant exclusively. By the execution of this Amendment, each of Landlord and Tenant
hereby acknowledge and confirm (a) receipt of a copy of a Disclosure Regarding Real Estate Agency Relationship conforming to the requirements of California Civil Code 2079.16, and (b) the agency relationships specified herein, which
acknowledgement and confirmation is expressly made for the benefit of Tenant’s Broker. By the execution of this Amendment, Landlord and Tenant are executing the confirmation of the agency relationships set forth herein. The warranty and
indemnity provisions of Article 18 of the Lease, as amended hereby, shall be binding and enforceable in connection with the negotiation of this Amendment. 

  

	 	I.	 Execution of Amendment. Submission of this Amendment by Landlord is not an offer to enter into this
Amendment but rather is a solicitation for such an offer by Tenant. Landlord shall not be bound by this Amendment until Landlord has executed and delivered the same to Tenant. 

 

	 	J.	 Nondisclosure of Terms. Tenant agrees that neither Tenant nor its agents or any other parties acting on
behalf of Tenant shall disclose any matters set forth in this Amendment or disseminate or distribute any information concerning the terms, details or conditions hereof to any person, firm or entity without obtaining the express written consent of
Landlord. 

 IN WITNESS WHEREOF, Landlord and Tenant have duly executed this Amendment as of the day and year first
above written. 
  

									
	LANDLORD:	 		 	TENANT:
			
	 LJ GATEWAY OFFICE LLC

a Delaware limited liability company
	 		 	 TUSIMPLE
 a California
corporation

					
	By	 	 /s/ Steven M. Case
	 		 	By	 	 /s/ Xiaodi Hou

		 	 Steven M. Case
 Executive Vice President Office
Properties
	 		 	 Printed Name Xiaodi Hou
 Title
President, CTO

					
	By	 	 /s/ Kristopher J. Kopensky
	 		 	By	 	
		 	 Kristopher J. Kopensky
 Vice President,
Operations Office Properties
	 		 	 Printed Name
 Title

  

					
	IOPLEGAL-4-44	  	5	  	3/26/19 - Lease 245927, Amendment 253127 - 0.4

 EXHIBIT A 

OUTLINE AND LOCATION OF FOURTH FLOOR EXPANSION SPACE 

4225 Executive Square, Suites 401, 408 and 409 
  

 

  

					
	IOPLEGAL -4-44	  	6	  	3/26/19 - Lease 245927, Amendment 253127 - 0.4

 EXHIBIT B 

FORM OF IRREVOCABLE STANDBY LETTER OF CREDIT 
  

							
		 	Number:	 	
                     
                                
	 	
		 	Date:	 	  
	 	                                      
      
		 	Amount:	 	  
	 	
		 	Expiration:	 	  
	 	

  

					
	BENEFICIARY	  	ACCOUNT PARTY	  	
			
	 LJ Gateway Office LLC
 550 Newport Center
Drive
	  	  
	  	                                      
  
	Newport Beach, CA 92660	  	  
	  	
	Attn: Commercial Properties Controller,	  	  
	  	
	Vice President	  		  	

 We hereby issue our Irrevocable Letter of Credit No.
                 in favor of LJ Gateway Office LLC (“Beneficiary”), its successors and assigns, for the account of
                 . We undertake to honor your sight draft, upon presentation at our office in
                    , California, for any sum or sums not to exceed a total of
                         ($             ) in favor of
Beneficiary when accompanied by the original of this Letter of Credit. 
 Partial and multiple drawings are permitted under this Letter of Credit. In the
event of a partial draw, the amount of the draft shall be endorsed on the reverse side hereof by the negotiating bank. 
 This Letter of Credit is
transferable in its entire undrawn balance to a successor beneficiary upon presentation by Beneficiary of the original of this Letter of Credit, together with a written request for transfer executed by Beneficiary. 

It is a condition of this Letter of Credit that it shall remain enforceable against us for a period of
                     from this date and further, that it shall be deemed automatically extended for successive
one-year periods without amendment thereafter unless thirty (30) days prior to the expiration date set forth above, or within thirty (30) days prior to the end of any yearly Anniversary Date
thereafter, you shall receive our notice in writing by certified mail, return receipt requested, that we elect not to renew this Letter of Credit for any subsequent year. 

The draft must be marked “Drawn under
                         Letter of Credit
                     No.
                    dated                   
      .” 
 There are no other conditions of this letter of credit. Except so far as otherwise stated, this credit is
subject to the Uniform Customs and Practice for Documentary Credits (2007 Revision), International Chamber of Commerce Publication No. 600, and is otherwise governed by the laws of the State of California. 

 

			
	  

	  

		
	By:	 	  

		
	By:	 	  

  

					
	IOPLEGAL-4-44	  	1	  	3/26/19 - Lease 245927, Amendment 253127 - 0.4

 EXHIBIT C 

WORK LETTER 
 [TENANT
BUILD] 
 As used in this Work Letter, the “Premises” shall be deemed to mean the Original Premises and the Fourth Floor Expansion
Space, as defined in the attached Amendment. 
  

	I.	 TENANT IMPROVEMENTS 

The tenant improvement work (“Tenant Improvements”) shall consist of any work required to complete the Premises pursuant to
approved plans and specifications. Tenant shall employ its own architect and general contractor in constructing the Tenant Improvements. The general contractor shall be selected and engaged by Tenant on the basis of a competitive bid involving 2
general contractors designated by Landlord and 1 general contractor designated by Tenant and approved in writing by Landlord. The work shall be undertaken and prosecuted in accordance with the following requirements: 

 

	 	A.	 Concurrently with sign-off by Tenant, the space plans, construction
drawings and specifications for all improvements and finishes, together with any changes thereto, shall be submitted to Landlord (with samples as required) for review and approval by Landlord and its architect for the Project. To the extent
applicable, the build-out of the Tenant Improvements shall include Landlord’s building standard tenant improvements, materials and specifications for the Project. Should Landlord approve work that would
necessitate any ancillary Building modification or other expenditure by Landlord, then except to the extent of any remaining balance of the “Landlord Contribution” as described below, Tenant shall, in addition to its other obligations
herein, promptly fund the cost thereof to Landlord. 

  

	 	B.	 All construction drawings prepared by Tenant’s architect shall follow Landlord’s CAD standards, which
standards shall be provided to Tenant or its architect upon request. 

  

	 	C.	 Landlord shall, subject to the foregoing, approve or disapprove any submittal of plans or specifications by
Tenant within 5 business days following receipt thereof by Landlord. 

  

	 	D.	 Tenant shall use the electrical, mechanical, plumbing and fire/life safety engineers and subcontractors
designated by Landlord, provided that Landlord shall provide 2 companies for each trade. All other subcontractors shall be subject to Landlord’s reasonable approval, and Landlord may require that one or more designated subtrades be union
contractors. 

  

	 	E.	 Tenant shall deliver to Landlord a copy of the final application for permit and issued permit for the
construction work. 

  

	 	F.	 Tenant’s general contractor and each of its subcontractors shall comply with Landlord’s requirements
as generally imposed on third party contractors, including without limitation all insurance coverage requirements and the obligation to furnish appropriate certificates of insurance to Landlord prior to commencement of construction.

  

	 	G.	 A construction schedule shall be provided to Landlord prior to commencement of the construction work, and
weekly updates shall be supplied during the progress of the work. 

  

	 	H.	 Tenant shall give Landlord 10 days prior written notice of the commencement of construction so that Landlord
may cause an appropriate notice of non-responsibility to be posted. 

  

	 	I.	 Tenant and its general contractor shall attend weekly job meetings with Landlord’s construction manager
for the Project. 

  

	 	J.	 Upon completion of the work, Tenant shall cause to be provided to Landlord
(i) as-built drawings of the Premises signed by Tenant’s architect, (ii) CAD files of the improved space compatible with Landlord’s CAD standards, (iii) a final punchlist signed by
Tenant, (iv) final and unconditional lien waivers from all contractors and subcontractors, (v) a duly recorded Notice of Completion of the improvement work, and (vi) a certificate of occupancy for the Premises (collectively, the “Close-out Package”). Should Tenant fail to provide complete CAD files compatible with Landlord’s standards as required herein, Landlord may cause its architect to prepare same and the cost
thereof shall be reimbursed to Landlord by Tenant within 10 days of invoice therefor. 

  

	 	K.	 The work shall be prosecuted at all times in accordance with all state, federal and local laws, regulations and
ordinances, including without limitation all OSHA and other safety laws. 

  

	 	L.	 All of the provisions of the Lease shall apply to any activity of Tenant, its agents and contractors, in
the Premises prior to the Fourth Floor Expansion Effective Date. 

  

					
	IOPLEGAL-4-44	  	2	  	3/26/19 - Lease 245927, Amendment 253127 - 0.4

	 	M.	 Landlord shall not be liable in any way for any injury, loss or damage which may occur to any work performed by
Tenant, nor shall Landlord be responsible for repairing any defective condition therein. In no event shall Tenant’s failure to complete the Tenant Improvements extend the Fourth Floor Expansion Effective Date. 

 

	II.	 COST OF THE WORK 

 

	 	A.	 Landlord shall provide to Tenant a tenant improvement allowance in the amount of $522,920.00 (i.e., $374,760.00
for the Fourth Floor Expansion Space and $148,160.00 for the Original Premises) (the “Landlord Contribution”), with any excess cost to be borne solely by Tenant. The Landlord Contribution shall also be utilized to fund
(i) space planning and other architectural costs (including the reasonable cost charged by Landlord’s architect to review Tenant’s drawings and CAD files), (ii) construction costs, (iii) plan check and permit fees and
(iv) Tenant’s project manager and relocation coordinator (up to 3% of the Tenant Improvement Allowance). It is understood that Landlord shall be entitled to a supervision/administrative fee equal to 3% of such costs, which up to 2% of the
fee shall be paid from the Landlord Contribution. Notwithstanding the foregoing, Tenant may utilize a portion of the Landlord Contribution not to exceed $62,460.00 toward the
out-of-pocket expenses incurred by Tenant for relocating to the Premises, including furniture moving and data cabling costs (“Moving Allowance”). If the
actual cost of completion of the Tenant Improvements is less than the maximum amount provided for the Landlord Contribution or remains after June 30, 2020, such savings shall inure to the benefit of Landlord and Tenant shall not be entitled to
any credit or payment or to apply the savings toward additional work. 

  

	 	B.	 Landlord shall fund the Landlord Contribution (less deductions for the above-described supervision fee and
charges of Landlord’s architect) in installments as and when costs are incurred and a payment request therefor is submitted by Tenant. Each payment request shall include a copy of all supporting invoices, conditional progress payment lien
waivers (in the form prescribed by the California Civil Code) for labor and materials incorporated in such payment request, unconditional lien waivers (in the form prescribed by the California Civil Code) for labor and materials on the basis of
which payment has previously been by Landlord, and pertinent back-up (including copies of Tenant’s payment checks to its contractors and suppliers). Landlord shall fund the payment request within 30 days
following receipt of the application and supporting materials; provided that a 10% retention shall be held on payments to Tenant until Landlord receives the complete Close-out Package. The remaining balance of
the Landlord Contribution shall be funded when Landlord receives the complete Close-out Package. Prior to any payment by Landlord hereunder, Tenant shall provide to Landlord in writing the address to which
such payment is to be delivered, together with a complete copy of the construction contract(s) for the Tenant Improvements. 

  

					
	IOPLEGAL-4-44	  	3	  	3/26/19 - Lease 245927, Amendment 253127 - 0.4

 THIRD AMENDMENT 

THIS THIRD AMENDMENT (the “Amendment”) is made and entered into as of November 5, 2019, by and between LJ GATEWAY OFFICE LLC, a
Delaware limited liability company, hereafter called “Landlord,” and TUSIMPLE, INC., a California corporation, hereafter called “Tenant.” 

RECITALS 
  

	A.	 Landlord and Tenant (formerly known as Tusimple, a California corporation) as successor in interest to Tusimple
LLC, a California limited liability company) are parties to that certain lease dated December 16, 2016, which lease is amended by that certain First Amendment dated January 22, 2019 and Second Amendment dated March 27, 2019
(collectively, the “Lease”). Pursuant to the Lease, Landlord has leased to Tenant space currently containing approximately 27,308 rentable square feet (the “Original Premises”) described as Suite Nos. 401,
408, 409, 550 and 600 on the 4th, 5th and 6th floors of the building located at 9191 Towne
Centre Drive, San Diego, California (the “Building”). 

  

	B.	 Tenant has requested that additional space containing approximately 9,225 rentable square feet (the
“Suite 510 Expansion Space”) as shown on Exhibit A (attached hereto) be added to the Original Premises and that the Lease be appropriately amended and Landlord is willing to do the same on the following terms and conditions.

 NOW, THEREFORE, in consideration of the above recitals which by this reference are incorporated herein, the
mutual covenants and conditions contained herein and other valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Landlord and Tenant agree as follows: 

 

	I.	 Expansion and Effective Date. 

 

	 	A.	 Effective as of August 1, 2020 (the “Suite 510 Expansion Effective Date”), the Premises,
as defined in the Lease, is increased from 27,308 rentable square feet to 36,533 rentable square feet by the addition of the Suite 510 Expansion Space, and from and after the Suite 510 Expansion Effective Date, the Original Premises
and the Suite 510 Expansion Space, collectively, shall be deemed the Premises, as defined in the Lease. The Term for the Suite 510 Expansion Space shall commence on the Suite 510 Expansion Effective Date and end on the Second Extended Expiration
Date (i.e., March 31, 2024). The Suite 510 Expansion Space is subject to all the terms and conditions of the Lease except as expressly modified herein and except that Tenant shall not be entitled to receive any allowances, abatements or other
financial concessions granted with respect to the Original Premises unless such concessions are expressly provided for herein with respect to the Suite 510 Expansion Space. 

 

	 	B.	 The Suite 510 Expansion Effective Date shall be delayed to the extent that Landlord fails to deliver possession
of the Suite 510 Expansion Space for any reason, including but not limited to, holding over by prior occupants. Any such delay in the Suite 510 Expansion Effective Date shall not subject Landlord to any liability for any loss or damage resulting
therefrom. 

  

	II.	 Basic Rent. In addition to Tenant’s obligation to pay Basic Rent for the Original
Premises, Tenant shall pay Landlord Basic Rent for the Suite 510 Expansion Space as follows: 

  

									
	 Months of Term or Period
	  	Monthly Rate Per Square
Foot	 	  	Monthly Basic Rent	 
	 8/1/20 to 7/31/21
	  	$	3.27	 	  	$	30,165.75	 
	 8/1/21 to 7/31/22
	  	$	3.42	 	  	$	31,549.50	 
	 8/1/22 to 7/31/23
	  	$	3.57	 	  	$	32,933.25	 
	 8/1/23 to 3/31/24
	  	$	3.73	 	  	$	34,409.25	 

 All such Basic Rent shall be payable by Tenant in accordance with the terms of the Lease. 

 

	III.	 Project Costs and Property Taxes. Effective as of the Suite 510 Expansion Effective Date,
Item 7 of Article 1 of the Lease shall be amended to add the following for the Suite 510 Expansion Space: 

 “7.
Property Tax Base: The Property Taxes per rentable square foot incurred by Landlord and attributable to the twelve month period ending June 30, 2021 (the “Base Year”). 

Project Cost Base: The Project Cost per rentable square foot incurred by Landlord and attributable to the twelve month period ending
June 30, 2021. 

  

					
		  	1	  	TUSIMPLE-9191 TCD-3A3

 Expense Recovery Period: Every twelve month period during the Term (or portion thereof
during the first and last Lease years) ending June 30.” 
  

	IV.	 Additional Security Deposit. Concurrently with Tenant’s delivery of this Amendment,
Tenant shall deliver the sum of $75,700.36 to Landlord, which sum shall be added to the Security Deposit presently being held by Landlord in accordance with Section 4.3 of the Lease. Accordingly, the Security Deposit is increased from
$111,632.00 to $187,332.36. Notwithstanding the foregoing, provided Tenant has not been in Default, Landlord shall reduce the Security Deposit, and credit such reduction against the Basic Rent due hereunder, in the amount of $37,850.18 as of
the first day of the 30th month following the Suite 510 Expansion Effective Date. If Tenant is entitled such reduction in the Security Deposit, Tenant shall provide Landlord with written notice
requesting that the Security Deposit be reduced as provided above. 

  

	V.	 Improvements. 

 

	 	A.	 Condition of Original Premises and Suite 510 Expansion Space. Tenant (i) acknowledges that it is
currently occupying the Original Premises and that it is satisfied with the condition thereof and (ii) has inspected the Suite 510 Expansion Space and agrees to accept the same “as is” without any agreements, representations,
understandings or obligations on the part of Landlord to perform any alterations, repairs or improvements, except as may be expressly provided otherwise in this Amendment. 

 

	 	B.	 Tenant Improvements. Tenant shall be permitted to construct the Tenant Improvements for the Suite 510
Expansion Space in accordance with the provisions of Exhibit B, Work Letter, attached hereto. 

  

	VI.	 Parking. Notwithstanding any contrary provision in Exhibit F to the Lease,
“Parking,” effective as of the Suite 510 Expansion Effective Date, Landlord shall lease to Tenant, and Tenant shall lease from Landlord, 36 additional unreserved parking passes for the Suite 510 Expansion Space at the rate of $60.00 per
pass, per month through the Second Extended Expiration Date. 

  

	VII.	 SDN List. Tenant hereby represents and warrants that neither Tenant nor any officer,
director, employee, partner, member or other principal of Tenant (collectively, “Tenant Parties”) is listed as a Specially Designated National and Blocked Person (“SDN”) on the list of such persons and entities
issued by the U.S. Treasury Office of Foreign Assets Control (OFAC). 

  

	VIII.	 Balcony. Notwithstanding any contrary provision in Section 3 of Exhibit G to the
Lease, “Balcony,” Tenant shall be permitted to install outdoor furniture (the “Outdoor Furniture”) on the private balcony or balconies located on the Premises. Tenant agrees that the size and color of such Outdoor
Furniture shall be subject to the prior written approval of Landlord and shall be removed from the balcony or balconies upon the expiration or earlier termination of the Lease. 

 

	IX.	 GENERAL. 

 

	 	A.	 Effect of Amendments. The Lease shall remain in full force and effect except to the extent that it is
modified by this Amendment. 

  

	 	B.	 Entire Agreement. This Amendment embodies the entire understanding between Landlord and Tenant and can
be changed only by a writing signed by Landlord and Tenant. There have been no additional oral or written representations or agreements. Under no circumstances shall Tenant be entitled to any rent abatement, improvement allowance, leasehold
improvements, or any similar economic incentives that may have been provided Tenant in connection with entering into the Lease, unless specifically set forth in this Amendment. 

 

	 	C.	 Counterparts; Digital Signatures. If this Amendment is executed in counterparts, each is hereby declared
to be an original; all, however, shall constitute but one and the same amendment. In any action or proceeding, any photographic, photostatic, or other copy of this Amendment may be introduced into evidence without foundation. The parties agree to
accept a digital image (including but not limited to an image in the form of a PDF, JPEG, GIF file, or other e-signature) of this Amendment, if applicable, reflecting the execution of one or both of the
parties, as a true and correct original. 

  

	 	D.	 Defined Terms. All words commencing with initial capital letters in this Amendment and defined in the
Lease shall have the same meaning in this Amendment as in the Lease, unless they are otherwise defined in this Amendment. 

  

	 	E.	 Authority. If Tenant is a corporation, limited liability company or partnership, or is comprised of any
of them, each individual executing this Amendment for the corporation, limited liability company or partnership represents that he or she is duly authorized to execute and deliver this Amendment on behalf of such entity and that this Amendment is
binding upon such entity in accordance with its terms. 

  

					
		  	2	  	TUSIMPLE-9191 TCD-3A3

	 	F.	 California Certified Access Specialist Inspection. Pursuant to California Civil Code § 1938,
Landlord hereby states that the Premises have not undergone inspection by a Certified Access Specialist (CASp) (defined in California Civil Code § 55.52(a)(3)). Pursuant to Section 1938 of the California Civil Code, Landlord hereby
provides the following notification to Tenant: “A Certified Access Specialist (CASp) can inspect the subject premises and determine whether the subject premises comply with all of the applicable construction-related accessibility standards
under state law. Although state law does not require a CASp inspection of the subject premises, the commercial property owner or lessor may not prohibit the lessee or tenant from obtaining a CASp inspection of the subject premises for the occupancy
or potential occupancy of the lessee or tenant, if requested by the lessee or tenant. The parties shall mutually agree on the arrangements for the time and manner of the CASp inspection, the payment of the fee for the CASp inspection, and the cost
of making any repairs necessary to correct violations of construction related accessibility standards within the premises.” 

  

	 	G.	 Attorneys’ Fees. The provisions of the Lease respecting payment of attorneys’ fees shall also
apply to this Amendment. 

  

	 	H.	 Brokers. Article 18 of the Lease is amended to provide that the parties recognize the following parties
as the brokers who negotiated this Amendment, and agree that Landlord shall be responsible for payment of brokerage commissions to such brokers pursuant to its separate agreements with such brokers: Irvine Management Company
(“Landlord’s Broker”) is the agent of Landlord exclusively and Hughes Marino, Inc. (“Tenant’s Broker”) is the agent of Tenant exclusively. By the execution of this Amendment, each of Landlord and Tenant
hereby acknowledge and confirm (a) receipt of a copy of a Disclosure Regarding Real Estate Agency Relationship conforming to the requirements of California Civil Code 2079.16, and (b) the agency relationships specified herein, which
acknowledgement and confirmation is expressly made for the benefit of Tenant’s Broker. By the execution of this Amendment, Landlord and Tenant are executing the confirmation of the agency relationships set forth herein. The warranty and
indemnity provisions of Article 18 of the Lease, as amended hereby, shall be binding and enforceable in connection with the negotiation of this Amendment. 

  

	 	I.	 Execution of Amendment. Submission of this Amendment by Landlord is not an offer to enter into this
Amendment but rather is a solicitation for such an offer by Tenant. Landlord shall not be bound by this Amendment until Landlord has executed and delivered the same to Tenant. 

 

	 	J.	 Nondisclosure of Terms. Tenant agrees that neither Tenant nor its agents or any other parties acting on
behalf of Tenant shall disclose any matters set forth in this Amendment or disseminate or distribute any information concerning the terms, details or conditions hereof to any person, firm or entity without obtaining the express written consent of
Landlord. 

 [SIGNATURES ON FOLLOWING PAGE] 

  

					
		  	3	  	TUSIMPLE-9191 TCD-3A3

 IN WITNESS WHEREOF, Landlord and Tenant have duly executed this Amendment as of the
day and year first above written. 
  

									
	LANDLORD:	 		 	TENANT:
			
	LJ GATEWAY OFFICE LLC, a Delaware limited liability company	 		 	 TUSIMPLE, INC.
 a California
corporation

					
	By:	 	 /s/ Steven M. Case
	 		 	By:	 	 /s/ Xiaodi Hou

	      	 	Steven M. Case	 		 	Printed Name: Xiaodi Hou
		 	Executive Vice President, Office Properties	 		 	Title:	 	President, Founder, and CTO
					
	By:	 	 /s/ Kristopher J. Kopensky
	 		 	By:	 	
                     
       

	      	 	Kristopher J. Kopensky	 		 	Printed Name:                                 
                                        

	      	 	Vice President, Operations Office Properties	 		 	Title:	 	
                     
    

  

					
	            	  	4	  	TUSIMPLE-9191 TCD-3A3

 EXHIBIT A 

OUTLINE AND LOCATION OF SUITE 510 EXPANSION SPACE 

9191 Towne Centre Drive, Suite 510 
  

 

  

					
	        	  	1	  	TUSIMPLE-9191 TCD-3A3

 EXHIBIT B 

WORK LETTER 
 As used in
this Work Letter, the “Premises” shall be deemed to mean the Suite 510 Expansion Space, as defined in the attached Amendment. 
  

	I.	 TENANT IMPROVEMENTS 

The tenant improvement work (“Tenant Improvements”) shall consist of any work required to complete the Premises pursuant to
approved plans and specifications. Tenant shall employ its own architect and general contractor in constructing the Tenant Improvements. The general contractor shall be selected and engaged by Tenant on the basis of a competitive bid involving 2
general contractors designated by Landlord and 1 general contractor designated by Tenant and approved in writing by Landlord. The work shall be undertaken and prosecuted in accordance with the following requirements: 

 

	 	A.	 Concurrently with sign-off by Tenant, the space plans, construction
drawings and specifications for all improvements and finishes, together with any changes thereto, shall be submitted to Landlord (with samples as required) for review and approval by Landlord and its architect for the Project. To the extent
applicable, the build-out of the Tenant Improvements shall include Landlord’s building standard tenant improvements, materials and specifications for the Project. Should Landlord approve work that would
necessitate any ancillary Building modification or other expenditure by Landlord, then except to the extent of any remaining balance of the “Landlord Contribution” as described below, Tenant shall, in addition to its other obligations
herein, promptly fund the cost thereof to Landlord. 

  

	 	B.	 All construction drawings prepared by Tenant’s architect shall follow Landlord’s CAD standards, which
standards shall be provided to Tenant or its architect upon request. 

  

	 	C.	 Landlord shall, subject to the foregoing, approve or disapprove any submittal of plans or specifications by
Tenant within 5 business days following receipt thereof by Landlord. 

  

	 	D.	 Tenant shall use the electrical, mechanical, plumbing and fire/life safety engineers and subcontractors
designated by Landlord, provided that Landlord shall provide 2 companies for each trade. All other subcontractors shall be subject to Landlord’s reasonable approval, and Landlord may require that one or more designated subtrades be union
contractors. 

  

	 	E.	 Tenant shall deliver to Landlord a copy of the final application for permit and issued permit for the
construction work. 

  

	 	F.	 Tenant’s general contractor and each of its subcontractors shall comply with Landlord’s requirements
as generally imposed on third party contractors, including without limitation all insurance coverage requirements and the obligation to furnish appropriate certificates of insurance to Landlord prior to commencement of construction.

  

	 	G.	 A construction schedule shall be provided to Landlord prior to commencement of the construction work, and
weekly updates shall be supplied during the progress of the work. 

  

	 	H.	 Tenant shall give Landlord 10 days prior written notice of the commencement of construction so that Landlord
may cause an appropriate notice of non-responsibility to be posted. 

  

	 	I.	 Tenant and its general contractor shall attend weekly job meetings with Landlord’s construction manager
for the Project. 

  

	 	J.	 Upon completion of the work, Tenant shall cause to be provided to Landlord
(i) as-built drawings of the Premises signed by Tenant’s architect, (ii) CAD files of the improved space compatible with Landlord’s CAD standards, (iii) a final punchlist signed by
Tenant, (iv) final and unconditional lien waivers from all contractors and subcontractors, (v) a duly recorded Notice of Completion of the improvement work, and (vi) a certificate of occupancy for the Premises (collectively, the “Close-out Package”). Should Tenant fail to provide complete CAD files compatible with Landlord’s standards as required herein, Landlord may cause its architect to prepare same and the cost
thereof shall be reimbursed to Landlord by Tenant within 10 days of invoice therefor. 

  

	 	K.	 The work shall be prosecuted at all times in accordance with all state, federal and local laws, regulations and
ordinances, including without limitation all OSHA and other safety laws. 

  

					
	        	  	1	  	TUSIMPLE-9191 TCD-3A3

	 	L.	 All of the provisions of the Lease shall apply to any activity of Tenant, its agents and contractors, in the
Premises prior to the Suite 510 Expansion Effective Date. 

  

	 	M.	 Landlord shall not be liable in any way for any injury, loss or damage which may occur to any work performed by
Tenant, nor shall Landlord be responsible for repairing any defective condition therein. In no event shall Tenant’s failure to complete the Tenant Improvements extend the Suite 510 Expansion Effective Date. 

 

	II.	 COST OF THE WORK 

 

	 	A.	 Landlord shall provide to Tenant a tenant improvement allowance in the amount of $276,750.00 (the
“Landlord Contribution”), with any excess cost to be borne solely by Tenant. The Landlord Contribution shall also be utilized to fund (i) space planning and other architectural costs (including the reasonable cost charged by
Landlord’s architect to review Tenant’s drawings and CAD files), (ii) construction costs, (iii) plan check and permit fees and (iv) Tenant’s project manager and relocation coordinator (up to 3% of the Tenant Improvement
Allowance). It is understood that Landlord shall be entitled to a supervision/administrative fee equal to 3% of such costs, which up to 2% of the fee shall be paid from the Landlord Contribution. Notwithstanding the foregoing, Tenant may utilize a
portion of the Landlord Contribution not to exceed $46,125.00 toward the out-of-pocket expenses incurred by Tenant for relocating to the Premises, including furniture
moving and data cabling costs (“Moving Allowance”). If the actual cost of completion of the Tenant Improvements is less than the maximum amount provided for the Landlord Contribution or remains after October 31, 2020, such
savings shall inure to the benefit of Landlord and Tenant shall not be entitled to any credit or payment or to apply the savings toward additional work. 

  

	 	B.	 Landlord shall fund the Landlord Contribution (less deductions for the above-described supervision fee and
charges of Landlord’s architect) in installments as and when costs are incurred and a payment request therefor is submitted by Tenant. Each payment request shall include a copy of all supporting invoices, conditional progress payment lien
waivers (in the form prescribed by the California Civil Code) for labor and materials incorporated in such payment request, unconditional lien waivers (in the form prescribed by the California Civil Code) for labor and materials on the basis of
which payment has previously been by Landlord, and pertinent back-up (including copies of Tenant’s payment checks to its contractors and suppliers). Landlord shall fund the payment request within 30 days
following receipt of the application and supporting materials; provided that a 10% retention shall be held on payments to Tenant until Landlord receives the complete Close-out Package. The remaining balance of
the Landlord Contribution shall be funded when Landlord receives the complete Close-out Package. Prior to any payment by Landlord hereunder, Tenant shall provide to Landlord in writing the address to which
such payment is to be delivered, together with a complete copy of the construction contract(s) for the Tenant Improvements. 

  

					
	        	  	2	  	TUSIMPLE-9191 TCD-3A3EX-10.17

 Exhibit 10.17 

TUSIMPLE HOLDINGS INC. 

March 22, 2021 
 Mr. Mo Chen 

via email 
 Dear Mo: 

This letter agreement (the “Agreement”) serves to confirm the terms and conditions of your continued employment with TuSimple
Holdings Inc., formerly known as TuSimple (Cayman) Limited (hereinafter, “TuSimple”) or one of its subsidiaries (referred to collectively herein as the “TuSimple Group”). For purposes of this Agreement, the
“Company” shall refer to the member of the TuSimple Group that actually employs you, which may change from time to time. This Agreement is effective as of the date of your signing. 

1. Position. You will continue to serve as the Executive Chairman and you will continue to report to the Board of Directors of
TuSimple. This is a full-time, exempt position. By signing this Agreement, you confirm to the TuSimple Group that you have no contractual commitments or other legal obligations that would prohibit you from performing your duties for the TuSimple
Group. While you render services to the TuSimple Group, you will not engage in any other employment, consulting or other business activity (whether full-time or part-time) that would create a conflict of interest with the TuSimple Group. 

2. Cash Compensation. You will continue to be paid a salary at the rate of $300,000 per year. Your salary will be payable in accordance
with the Company’s standard payroll schedule and will be subject to adjustment pursuant to the Company’s employee compensation policies in effect from time to time. In addition, you will be eligible to receive an annual discretionary
performance bonus in an amount equal to up to 50% of your base salary. Any bonus for a fiscal year will be paid within 21⁄2 months after the close of that fiscal
year, but only if you are still employed by the Company on the last day of the fiscal year to which the bonus relates. The determinations of the Board of Directors of TuSimple (the “Board”) with respect to your bonus will be final
and binding, and the Board retains the right to cancel your bonus for any given year in the event of your gross negligence or serious misconduct in the performance of your duties prior to the date on which the bonus is paid, or if you have tendered
your resignation prior to the close of the fiscal year to which the bonus relates. 
 3. Equity Awards. If you were previously
granted one or more equity-based awards under TuSimple’s stock plan (such awards, your “Equity Awards”), they will remain outstanding and will continue to be governed by the terms and conditions of the stock plan and award
agreements applicable to them. 

 Mo Chen 
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2 
  

 4. Employee Benefits and Perquisites. As a regular employee of the Company, you will
be eligible to participate in a number of Company-sponsored benefits. In addition, you will be entitled to paid vacation in accordance with the Company’s vacation policy, as in effect from time to time. In addition, unless and until the Board
of Directors of Tusimple or its Compensation Committee determines otherwise, the Company will continue to provide you with additional perquisites with caps it deems are reasonable and appropriate from time to time, including, without limitation,
reimbursements for certain life insurance premiums and legal and tax advisory services. 
 5. Severance Benefits. If you are entitled
to the severance benefits in the event of certain qualifying terminations, such benefits will be described in a Severance and Change in Control Agreement by and between you and TuSimple. 

6. Proprietary Information and Inventions Agreement. You will continue to be bound by the Proprietary Information and Inventions
Agreement, dated March 21, 2021, between you and TuSimple or such other member of the TuSimple Group, attached as Exhibit A hereto. 

7. Employment Relationship. Employment with the Company is for no specific period of time. Your employment with the Company will
continue to be “at will,” meaning that either you or your employer may terminate your employment at any time and for any reason, with or without cause. Any contrary representations that may have been made to you are superseded by this
Agreement. This is the full and complete agreement between you and your employer on this term. Although your job duties, title, compensation and benefits, as well as the personnel policies and procedures of the TuSimple Group, including the member
of the TuSimple Group actually employing you, may change from time to time, the “at will” nature of your employment may only be changed in an express written agreement signed by you and a duly authorized officer of the TuSimple Group
(other than you). 
 8. Tax Matters. 

(a) Withholding; Section 409A. All forms of compensation referred to in this Agreement are subject to reduction to reflect
applicable withholding and payroll taxes and other deductions required by law. Except for such withholding, you will be responsible for your own tax liability imposed with respect to such compensation. It is intended that all payments and benefits
under this Agreement, to the greatest extent possible, be exempt from Section 409A of the Internal Revenue Code of 1986, as amended (“Section 409A”); to the extent not so exempt, this Agreement will be construed in a
manner that complies with Section 409A. 
 (b) Tax Advice. You are encouraged to obtain your own tax advice regarding your
compensation. You agree that the no member of the TuSimple Group has a duty to design its compensation policies in a manner that minimizes your tax liabilities, and you will not make any claim against any member of the TuSimple Group or the Board
related to tax liabilities arising from your compensation. 
 9. Interpretation, Amendment and Enforcement. This Agreement supersedes
and replaces any prior offer letters, agreements, representations or understandings (whether written, oral, implied or otherwise) between you and the TuSimple Group regarding the subject matter set forth herein and constitutes the complete agreement
between you and the TuSimple Group regarding such subject matter. Notwithstanding the foregoing, nothing in this Agreement shall supersede or replace any existing equity rights you may have, including any rights you have with respect to your Equity
Awards. This Agreement may not be amended or modified, except by an express written agreement signed by both you and a duly authorized officer of the TuSimple Group (other than you). 

* * * * * 

 Mo Chen 
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3 
  

 You may indicate your agreement with these terms by signing and dating this Agreement and
returning it to me. 
  

			
	 Very truly yours,

	
	TUSIMPLE HOLDINGS INC.
		
	 By:
	 	 /s/ Cheng Lu

		 	 Cheng Lu, President & CEO

  

	
	I have read and accept the terms of this Agreement:
	
	 /s/ Mo Chen

	Signature of Mo Chen

  

			
		
	Dated:	 	 March 22, 2021

 Mo Chen 
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4 
  

 EXHIBIT A 

Proprietary Information and Inventions Agreement

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