Document:

EX-10.12

 Exhibit 10.12 

LEASE AGREEMENT 

Between 
 McMASTER
UNIVERSITY 
 (the “Landlord”) 

—and— 
 FUSION
PHARMACEUTICALS INC. 
 A body corporate incorporated under the laws of the Province of Ontario 

(the “Tenant”) 

270 Longwood Road South, Hamilton 

  
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 TABLE OF CONTENTS 

 

					
	 ARTICLE 1 - DEFINITIONS
	  	 	4	
	 ARTICLE 2 - TERM AND USE
	  	 	6	
	 ARTICLE 3 - RENT
	  	 	9	
	 ARTICLE 4 - MAINTENANCE, REPAIRS AND ALTERATIONS
	  	 	11	
	 ARTICLE 5 - LANDLORD’S WORK. TENANT’S WORK AND FIXTURING PERIOD
	  	 	14	
	 ARTICLE 6 - ENTRY BY LANDLORD
	  	 	16	
	 ARTICLE 7 - INSURANCE AND INDEMNITY
	  	 	17	
	 ARTICLE 8 - ASSIGNMENT AND TENANT’S SECURITY
	  	 	20	
	 ARTICLE 9 - DAMAGE, DESTRUCTION AND EXPROPRIATION
	  	 	21	
	 ARTICLE 10 -DEFAULT
	  	 	23	
	 ARTICLE 11 - STATUS STATEMENT, ATTORNMENT AND SUBORDINATION
	  	 	25	
	 ARTICLE 12 - GENERAL PROVISIONS
	  	 	25	
	 SCHEDULE “A” - DESCRIPTION OF THE BUILDING. THE LANDS & THE PREMISES
	  	 	29	 
	 SCHEDULE “A-1” - SKETCH OF PREMISES
	  	 	30	 
	 SCHEDULE “B” - DESCRIPTION OF COMMON AREAS
	  	 	31	 
	 SCHEDULE “C” – PARKING
	  	 	32	 
	 SCHEDULE “D” – LANDLORD’S WORK
	  	 	33	 
	 SCHEDULE “E” - TENANT’S WORK
	  	 	34	 
	 SCHEDULE “F” - JANITORIAL SERVICES
	  	 	35	 

  
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 LEASE AGREEMENT 

Part of 270 Longwood Road South, Hamilton 

Pursuant to the Short Form of Leases Act, THIS LEASE AGREEMENT is dated this 1st day of August 2018 

BETWEEN: 
 McMASTER UNIVERSITY 

(hereinafter called the “Landlord’’) 

OF THE FIRST PART, 
 - AND- 

FUSION PHARMACEUTICALS INC., 

(hereinafter called the “Tenant”) 

OF THE SECOND PART 
 WHEREAS
The Gore District Land Trustee Corporation (“Gore”) is the registered owner of the lands upon which the McMaster Innovation Park (“M1P”) is situated within the City of Hamilton (the “MIP
Lands”); 
 AND WHEREAS Gore and The First Longwood Innovation Trust (“FLIT”) have entered into a headlease
with respect to that portion of the MIP Lands located to the west of Longwood Road South (the “Lands ‘) dated January 1, 2011 for a term of 49 years and six months (the “Headlease”); 

AND WHEREAS FLIT has entered into a sublease dated October 1, 2016 with First Longwood Warehouse Redevelopment GP Corporation
(“FLWR”) for all of the building located at 200-270 Longwood Road South (the “Building”) on the MIP Lands and a leasehold parcel described on Schedule “A” attached
hereto; 
 AND WHEREAS FLWR has entered into a sublease with the Landlord dated June 29, 2016 for certain premises in the
Building as set out herein (the “Landlord Premises”); 
 AND WHEREAS the Landlord desires to lease and licence
approximately 5,415 net assignable square feet of the Landlord Premises to the Tenant and the Tenant wishes to lease and license that portion of the Landlord Premises from the Landlord; 

AND WHEREAS the Landlord and the Tenant wish to set out the terms and conditions under which the Landlord will make available certain
space in the Building as described herein; 
 AND WHEREAS the Tenant intends on using the herein demised Premises under conditions
typical for work involving pharmaceutical and radiopharmaceutical substances for the purpose of discovering, developing, manufacturing, storing, distributing for the purposes of commercialization and future sale pharmaceutical products that may
contain radioactive isotopes (radiopharmaceuticals) and other chemical or biological substances. This includes all associated office and laboratory functions typical of leading pharmaceutical companies, which may include work with biohazards (cells,
bacteria, etc.) as preclinical models needed to develop new products and receive regulatory approvals, and ancillary administrative offices. 

NOW THEREFORE this lease and licence witnesses that in consideration of the mutual covenants and agreements herein contained and
subject to terms and conditions set forth herein, the parties hereto agree as follows: 

  
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 ARTICLE 1 - DEFINITIONS 

 

	1.1	 Definitions. 

In this Lease and in the schedules attached to this Lease: 

	(a)	 “Additional Rent” means all sums of money required to be paid by the Tenant under this Lease
(except Gross Rent) and which includes, if applicable: the Tenant’s Proportionate Share of the costs to maintain; costs incurred by the Landlord to remedy any default of the Tenant; costs associated with extra operating maintenance and
administration of access controls, manned security desk and camera system monitoring and maintenance as required by Tenant (except beyond basic key/lock access); special Janitorial Services as requested and approved by the Tenant; and all Taxes.

  

	(b)	 “Alterations” means all repairs, replacements, alterations or additions to the Premises by or
on behalf of the Tenant; and “Alter” shall have a corresponding meaning. 

  

	(c)	 “Architect” means any licensed Ontario architect from time to time named by the Landlord.

  

	(d)	 “Assignment” means an assignment of this Lease or a sublease of any part of the Premises; any
transaction whereby the rights of the Tenant are transferred or by which any right of use of any part of the Premises is conferred upon anyone; any encumbrance of this Lease or other arrangement under which either this Lease or the Premises become
security for any obligations; and includes any transaction or occurrence whatsoever (including expropriation, receivership proceedings, seizure by legal process and transfer by operation of law), which has changed the identity of the Person having
lawful use of any part of the Premises, including the Tenant. 

  

	(e)	 “Assignee” means the Person to whom an Assignment is or is to be made. 

 

	(f)	 “Building” means the existing building located on the Lands as may be renovated and improved
from time to time and municipally known as 200-270 Longwood Road South, Hamilton, Ontario. 

  

	(g)	 “Commencement Date” means the date on which the Term commences as determined pursuant to
Section 2.2. 

  

	(h)	 “Common Areas” means those portions of the Building or Premises owned or controlled by the
Landlord and not exclusively leased to other users, tenants or occupants of the Building, and which the Tenant and its Users are entitled to use under this Lease, as more specifically described in Schedule “B” attached hereto.

  

	(i)	 “Contaminant” means Contaminant as defined in the Environmental Protection Act.

  

	(j)	 “FLIT” means The First Longwood Innovation Trust. 

 

	(k)	 “FLWR” means the First Longwood Warehouse Redevelopment GP Corporation as general partner for
the First Longwood Warehouse Redevelopment LP. 

  

	(l)	 “Gross Rent” means the annual gross rent payable by the Tenant under Section 3.2 and
which includes all costs of utilities, basic Janitorial Services, and insurance of the Landlord relating to the Premises and the Tenant’s proportionate share of Common Areas, save and except as expressly excluded therefrom under this sublease.

  

	(m)	 “Including” and “Includes” howsoever written means, where the context permits,
“including, without limitation” and “includes, without limitation”, respectively. 

  

	(n)	 “Janitorial Services” means those services for janitorial and custodial purposes for the
Building by a qualified Person, retained by the Landlord and approved by Tenant acting reasonably, and more fully set out in and governed by Schedule “F”. 

 

	(o)	 “Landlord’s Work” means the work to the Building and Premises by the Landlord as stated
under Schedule “D”. 

  
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	(p)	 “Lands” means the lands situated in the City of Hamilton, in the Province of Ontario, as more
particularly described in Schedule “A”, and includes the Building and the leasehold parcel established thereover. 

  

	(q)	 “Leasehold Improvements” means leasehold improvements in the Premises determined according to
common law including, without limitation, all fixtures, improvements, installations, alterations and additions from time to time made, erected or installed in the Building or on the Lands by or on behalf of the Tenant, but in all cases excepting
Trade Fixtures but including Tenant’s Work and Landlord’s Work. 

  

	(r)	 “Material Deficiency” means, with respect to and in accordance with the construction contracts
in relation to the Landlord’s Work, any deficiency following Substantial Performance of the contract for Landlord’s Work that prevents the Tenant from proceeding with its core manufacturing and distribution operations hereunder, and
whether or not a municipal occupancy permit is issued. 

  

	(s)	 “MIP Lands” means all the lands and premises of FLIT or Gore, contiguous or otherwise, that
collectively create the McMaster Innovation Park in Hamilton, Ontario, as such lands may be defined, known, acquired, diminished or used from time to time. 

  

	(t)	 “Mortgage” means any charge, debenture, mortgage or other security, whether registered on
title to the Lands or not, in respect of any debt of the Landlord, Gore or any tenant, user or the Tenant, attaching to the freehold or a leasehold interest in the Lands, the Building, Leasehold Improvements, Trade Fixtures, or the Premises, as the
case may be, and Mortgagor and Mortgagee shall have a corresponding meaning in relation to the Mortgage. 

  

	(u)	 “Person” means any person, firm, partnership or corporation, or any group or combination of
persons, firms, partnerships or corporations. 

  

	(v)	 “Premises” means that portion of the Building, more particularly described and outlined on
Schedule “A” and Schedule “A-I” attached hereto, being the subject of this licence and lease between the Landlord and the Tenant. 

 

	(w)	 “Project” means the fit out and improvement of the Premises, including the Landlord’s
Work and Tenant’s Work. 

  

	(x)	 “Proportionate Share” means the Tenant’s proportionate share of costs, expenses and
payments required under this Lease that is payable by tenants or users of the Building, which is calculated as a fraction whereby the numerator is the rentable area of the Premises and the denominator is the rented area of the Building.

  

	(y)	 “Renewal Term” means the renewal of the Term as contemplated in section 2.2 below.

  

	(z)	 “Rent” means the aggregate of Gross Rent and any applicable Additional Rent.

  

	(aa)	 “Rental Year” means a period of 12 consecutive full calendar months, the first Rental Year
beginning on the Commencement Date if such date is the first day of a calendar month; if not, then the first Rental Year shall commence upon the first day of the calendar month next following the month in which the Commencement Date occurs. Each
succeeding Rental Year shall commence upon the anniversary date of the first Rental Year. 

  

	(bb)	 “Rules and Regulations” means the rules and regulations of the Landlord, FLIT or FLWR in
respect of the Building contemplated under Section 12.2 as may be amended from time to time in accordance with this Lease. 

  

	(cc)	 “Sales Tax” means any sales tax, goods and services tax, harmonized tax, value added tax, or
any other tax imposed on the Landlord with respect to Rent, or in respect of the rental of the Premises, whether characterized as a sales tax, goods and services tax, harmonized tax, value added tax, business transfer tax or otherwise.

  
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	(dd)	 “Substantial Performance” has the meaning ascribed to it in the Construction Lien Act
of Ontario and shall be evidenced by a certificate or certificates issued by the Architect and accepted in writing by the Tenant, which certificate(s) shall be in the form contemplated by the Construction Lien Act. 

 

	(ee)	 “Taxes” means all taxes, levies, charges, school and local improvement rates and assessments
whatsoever (including municipal and other property taxes) assessed or charged against the Premises or any part thereof or against the Landlord on account of its ownership of the Premises by any lawful taxing authority including any amounts assessed
or charged in substitution for or in lieu of any such taxes and including capital taxes and business taxes imposed at any time, but excluding only such taxes as capital gains taxes, corporate, income, profit or excess profit taxes to the extent such
taxes are not levied in lieu of any of the foregoing against the Premises or the Landlord in respect thereof, including any other tax or taxation regime brought into force by the Government of Canada, Province of Ontario or City of Hamilton
requiring the payment and remittance of any additional or substitutional tax on any benefit, goods or services set out or arising under this Lease and/or in addition to any existing tax as set out above. 

 

	(ff)	 “Tenant” includes every Person mentioned as Tenant in this Lease. 

 

	(gg)	 “Tenant’s Fixed Premises” means the premises leased by the Tenant from the Landlord in
another area of the Landlord’s Premises by way of a sublease agreement and in which the same business, undertaking and use by the Tenant will be located. 

 

	(hh)	 “Tenant’s Work” means the work to the Premises by the Tenant as stated under
Schedule “E”. 

  

	(ii)	 “Term” means the term of this Lease under Section 2.2 and all renewals and extensions.

  

	(jj)	 “Trade Fixtures” means trade fixtures of the Tenant as determined at common law except for:
(i) heating, ventilating or air-conditioning systems, facilities and equipment in or serving the Building; (ii) floor covering affixed to the floor of the Building; (iii) light fixtures;
(iv) internal stairways and doors; and (v) any fixtures, facilities, equipment or installations installed by or at the expense of the Landlord, all of which are deemed to be Leasehold Improvements. 

 

	(kk)	 “Users” means subtenants, licensees, invitees, permittees and other persons from time to time
allowed to use the Premises by the Tenant under or by virtue of this Lease Agreement and as authorized by the Landlord. 

ARTICLE 2 - TERM AND USE 
  

	2.1	 Grant and Premises. The Landlord leases the Premises to the Tenant for the Term and the Tenant hereby
accepts the Premises from the Landlord for the Term, subject to the terms, conditions, obligations and rights contained in this Lease. Each party shall have the right to require the Premises be remeasured no more frequently than semi-annually and,
if the net rentable square feet of the Premises is adjusted, then the Rent shall be correspondingly adjusted as of the date of the remeasurement. 

The Landlord hereby covenants and represents that it has obtained all of the necessary consents and approvals in order to enter into this
Lease, and to lease the Premises to the Tenant for the Use (as defined in Section 2.3 below) of the Premises contemplated herein as of the Commencement Date, including but not limited to any approvals or consents required from Gore, FLIT, and
FLWR. 
  

	2.2	 Term and Renewal. The Term of this Lease is for a duration commencing on the Commencement Date and
ending on the earlier of i) the day prior to the commencement date of, and as defined in, the lease for the Tenant’s Fixed Premises; and ii) January 1, 2020. In the event that the Tenant’s Fixed Premises are not yet ready for
possession by January 1, 2020, then the Tenant shall have the right to extend this Lease for successive additional periods of six (6) months, provided that the Tenant shall not have the rights to extend the Lease beyond January 2035, on
the same terms and conditions as set out herein until such time as the Tenant’s Fixed Premises are completed in accordance with the lease for the Tenant’s Fixed Premises. At the end of the Term, the Tenant shall vacate and quit the
Premises in a diligent, safe and responsible manner. 

  
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 The Commencement Date will be five days following Substantial Performance of the
Landlord’s Work as certified by the Architect and accepted in writing by the Tenant, provided that the following have been delivered to the Tenant by the Landlord prior to the date thereof: i) Landlord has confirmed to Tenant in writing the
load specifications for floor bearings and hydro-electricity use/consumption; and ii) the Landlord and Tenant have confirmed that there are no Material Deficiencies in the Landlord’s Work. 

 

	2.3	 Use. Subject to Sections 2.4 and 2.5, the Tenant acknowledges and agrees that it is only one of many
tenants, occupants or users of the Building and MIP and that therefore the Tenant shall conduct its business in the Premises in a manner consistent with the best interests of the Lands as a whole. Without limiting the generality of the foregoing,
the Tenant shall not use or permit the use of the Premises or the Building or any part thereof, for any purpose or activity that contravenes any federal, provincial or municipal law or by-law (the
“Land Use Restrictions”) as they affect the Lands, in force from time to time during the currency of this Lease. The Tenant hereby represents that it intends to use the Premises for the purpose of discovering, developing,
manufacturing, storing, distributing for the purposes of commercialization and future sale of pharmaceutical products that may contain radioactive isotopes (radiopharmaceuticals) and other chemical or biological substances. This includes all
associated office and laboratory functions typical of leading pharmaceutical companies, which may include work with biohazards (cells, bacteria, etc.) as preclinical models needed to develop new products and receive regulatory approvals, and
ancillary administrative offices and for no other purpose (collectively, the “Use”). The Landlord hereby covenants and represents that the Tenant’s Use of the Premises is not prohibited by the Headlease or the Rules and Regulations.

  

	2.4	 Tenant’s Covenants As To Use And Occupancy. 

 

	 	(a)	 The Tenant shall conduct its business in the Premises in a reputable and first-class manner and in compliance
with all provisions of this Lease. The Tenant shall not advertise, do, omit, permit or suffer to be done or exist upon the Premises anything which shall be or result in a nuisance or a hazard or cause a breach of any provision of this Lease or
applicable municipal or other governmental regulations, including the Land Use Restrictions. 

  

	 	(b)	 The Tenant shall not overload: (i) any floor in the Building beyond the design and as-built specifications as communicated to the Tenant by the Landlord in writing; or, (ii) any utility or service or commit any act of waste or damage any part of the Premises or use any part of same so as to
constitute a hazard. The Landlord shall provide the Tenant with not less than 48 hours written notice of any breach of this Section 2.4(b) and the Tenant shall have fifteen (15) days to comply with same upon delivery of the Landlord’s
written notice. 

  

	 	(c)	 The Tenant shall keep the Premises in compliance with the regulations and requirements of any appropriate fire
underwriters’ association or the City of Hamilton fire department or the Landlord’s Health and Safety Manual. The Tenant shall not do or permit to be done or omit or permit to be omitted on the Premises anything which shall cause any
insurance relating to the Premises to be cancelled, as same may be communicated or provided to Tenant from time to time. If such premiums for insurance are increased as a result of any act or omission of the Tenant, the Tenant shall first have up to
thirty (30) days to cease the offending action or otherwise comply with the terms of the relevant policy, failing which it shall pay for such increase at the demand of the Landlord. Notwithstanding the forgoing, the Landlord and the Tenant
shall, prior to and at all times during the Lease, ensure that all insurance providers for the Premises are fully aware of the proposed Use of the Premises by the Tenant, including the presence or use of radiopharmaceuticals, and the Tenant shall
not be obligated to cease its proper permitted Use of the Premises under this Lease. 

  

	 	(d)	 The Tenant shall use the Premises and any part of the Building authorized pursuant to this Lease in a manner
that is compatible with other users, occupants or tenants of the Building, as well as, users of adjoining lands in such a way as not to constitute a nuisance for the abutting or adjoining users, tenants or occupants. The Landlord agrees to use its
best efforts to advise the Tenant when new tenants lease space in other parts of the Building. 

  
 7 

	 	(e)	 The Tenant shall not make use of any intellectual property of the Landlord, McMaster University, Gore or the
McMaster Innovation Park for its own purposes or to promote its business or use of the Premises, without the prior written authorization of the Landlord. The Tenant may and is hereby authorized and licensed to place on its letterhead as its address
for service that it is located at the “McMaster Innovation Park”. 

  

	2.5	 Compliance with Laws. 

 

	 	(a)	 The Premises shall be used and occupied in a safe, careful and proper manner in compliance with all present
laws, regulations or orders, including the Land Use Restrictions, Rules and Regulations, and the requirements of the Landlord’s or Tenant’s insurers from time to time. 

 

	 	(b)	 Tenant’s Representation: The Tenant hereby covenants to comply with all applicable Land Use
Restrictions currently in force and as amended from time to time. The Tenant represents that it has examined the zoning bylaw in effect (presently an M-l designation) over the Lands and is satisfied that it
will not violate the Land Use Regulations and indemnifies the Landlord, its officers, directors, employees and agents from any action, charge, order or penalty attributable to or in consequence of the Tenant’s breach thereof. Any such breach
may, without obligation, be remedied by the Landlord and the costs of which shall be payable by the Tenant to the Landlord as Additional Rent. 

  

	 	(c)	 Additional Tenant’s Covenants: Notwithstanding any other term of this Lease but other than for
Landlord’s Work, the Tenant accepts the Premises on an “as is. where is” basis and agrees not to use the Premises or allow them to be used for any purpose or use which would be likely to cause abnormal, undue or excessive damage or
wear to the Premises or any systems installed therein or thereon, reasonable wear and tear only excepted and shall never use or allow the Premises to store or contain hazardous materials, Contaminants or environmentally sensitive materials other
than those specifically related to the storage, handling and use of nuclear and related biological or chemical substances (including waste) that are part of work on radiopharmaceuticals, provided at all times the Tenant is licensed to use and
possess same or does so in accordance with applicable laws governing same. Without limiting the generality of the foregoing, the Tenant further covenants as follows: 

 

	 	(i)	 It cannot and shall not locate any new building or structure on the Lands without the Landlord’s express
written permission which may be unreasonably withheld or denied and shall only use the Premises for the permitted uses, and no other use except as agreed by the Landlord other than industrial, commercial or community uses as defined under the
Environmental Protection Act and its regulations. Failure to comply with the above shall constitute a default hereunder and entitles the Landlord to all rights and remedies as may be available at law. 

 

	 	(ii)	 It shall permit the Landlord to enter the Premises (strictly in accordance with Section 6.1 below) to
inspect same for compliance with environmental laws and regulations and to conduct such tests and procedures as the Landlord may elect in connection therewith; 

 

	 	(iii)	 It shall promptly notify the Landlord in writing if proceedings are commenced against the Tenant or any other
occupant of the Premises; 

  

	 	(iv)	 It shall not charge or offer as security any of its leasehold interest in the Premises, Building or Land,
without the prior written consent of the Landlord, which may be unreasonably withheld in its sole discretion; 

  

	 	(v)	 It shall be wholly responsible for the payment of all Additional Rent; 

 

	 	(vi)	 It shall be responsible for all applicable Taxes including Sales Taxes arising under the Lease; and,

  
 8 

	 	(vii)	 It shall notify the Landlord of any changes to its ownership (but only if such changes which result in the
effective change in control of the Tenant) and changes to the officers or directors of the Tenant, within a reasonable period of time. 

The foregoing obligations of the Tenant under this Section 2.5 shall survive the expiration or early termination of this Lease and shall remain in full
force and effect until complied with. Failure by the Tenant to comply with its obligations under this Section 2.5 shall constitute a default under this Lease. If the Tenant fails to comply with any of its obligations under this
Section 2.5, the Landlord may (but shall not be obliged to) comply with same at the Tenant’s sole cost and the Tenant shall pay such cost to the Landlord forthwith on demand, which may be collected as Additional Rent. 

 

	2.6	 Licence. 

The Tenant shall operate from the Premises in accordance with this Lease and all applicable laws, statutes, regulations, permits, licences,
orders and by-laws of any governmental or quasi-governmental and regulatory authority to ensure health, safety and compliance with material handling, storage and use. The Tenant shall operate under the
Landlord’s licence for bio-safety as issued by the Public Health Agency of Canada during the Tenn. The Tenant shall also operate under the Landlord’s radiation safety licence issued by the Canadian
Nuclear Safety Commission during the Term. In the event that the Landlord’s licences or either of them is revoked, suspended or expired without renewal, the Landlord shall have no more than thirty (30) days to reinstate the licence or
apply for a new licence. If at any time thereafter the licence is still revoked, suspended or expired or there is no reasonable expectation that a new licence may be issued forthwith, the Tenant shall have the right to terminate this Lease on
provision of 30 days written notice to the Landlord. Upon termination of this Lease pursuant to this Section 2.6, each party agrees to release the other from all claims, actions, damages and losses relating to the termination and loss of
licence, Rent shall cease and the Tenant shall vacate and surrender to the Landlord the Premises. 
 ARTICLE 3 - RENT 

 

	3.1	 Covenant To Pay. 

 

	 	(a)	 Upon execution of this Lease, the Tenant shall pay to the Landlord the first and last month’s Gross Rent
for the Term. The Tenant shall pay Rent from the Commencement Date without prior demand and without any deduction, abatement, set-off or compensation. If the first or last Rental Year of the Term comprises
less than 12 calendar months, then Gross Rent and any Additional Rent for such Rental Years shall be pro-rated on a per diem basis, based upon a period of 365 days. 

 

	 	(b)	 At the request of the Landlord, the Tenant shall pay Rent to the Landlord by a
pre-authorized payment process whereby Rent is automatically debited from the Tenant’s bank account and the Tenant shall cooperate fully with the Landlord in establishing this method of payment.

  

	3.2	 Gross Rent. The Tenant shall pay to the Landlord Gross Rent calculated annually at the rate of $18.00
per net assignable square foot of space in the Premises, which shall be payable in equal monthly installments in advance on the first day of each calendar month of each year of the Term. For certainty, the Gross Rent shall be $97,470.

  

	3.3	 Additional Rent. Except as otherwise provided in this Lease, all Additional Rent shall be payable by the
Tenant to the Landlord or as the Landlord may direct in writing within 15 days after written demand and in accordance with 3.5 below. 

  

	3.4	 Payment Of Taxes. 

 

	 	(a)	 The Tenant shall pay to the Landlord the Taxes at the times and in the manner set out in this Section 3.4.

  
 9 

	 	(b)	 The Tenant shall promptly pay to the Landlord or as the Landlord may direct, not later than the due date
thereof, the Taxes. Taxes shall be paid by Tenant based on an invoice from Landlord to Tenant that contains i) the actual invoice from the City of Hamilton for the Lands; ii) allocation and apportionment of Taxes for the entirety of the premises
leased to Landlord by FLWR; and, iii) if applicable, a further breakdown of Taxes for the Premises based on the use, possession or occupation of same by subtenants, as communicated to the Landlord by the Tenant from time to time during the Term.

  

	 	(c)	 The Tenant shall pay when due all Sales Tax. If Sales Tax is payable by the Landlord to the relevant taxing
authority, the Tenant shall pay the amount thereof to the Landlord or as the Landlord directs. Notwithstanding anything to the contrary contained in this Lease, Sales Tax shall be deemed to be a tax and not Additional Rent, but the Landlord shall
have the same remedies in respect of any default by the Tenant in the payment of Sales Tax as it has in respect of a default in the payment of Additional Rent under this Lease. 

 

	 	(d)	 Landlord reserves the right to appeal assessments or apply for a reduction or reclassification of any Taxes,
provided that Tenant shall continue to pay all Taxes as invoiced under Section 3.4(b) above pending any such appeal or application. Landlord agrees to use its best efforts to seek a ruling from Municipal Property Assessment Corporation and/or
City of Hamilton within the first year of the Term to investigate if the Tenant is entitled to any partial or full exemption, credit or rebate of Taxes. 

  

	 	(e)	 Notwithstanding the invoice generated and delivered to the Tenant under Section 3.4(b), the amount of
Taxes payable to the Landlord may be estimated by the Landlord for such period as the Landlord determines from time to time, and the Tenant agrees to pay to the Landlord the amounts so estimated in equal installments in advance on the first day of
each month during such period. Notwithstanding the foregoing, when invoices for all or any portion of such amounts are received, the Landlord may bill the Tenant for the Taxes and the Tenant shall pay the Landlord such amounts so billed after
crediting against such amount any monthly payments of estimated Taxes previously made by the Tenant. 

  

	 	(f)	 Within a reasonable period of time after the end of the period for which estimated payments have been made, the
Landlord shall submit to the Tenant a statement from the Landlord setting forth the actual amounts payable by the Tenant on account of Taxes. If the amount the Tenant has paid is less than the amount due, the Tenant shall pay such deficiency
forthwith. If the amount paid by the Tenant is greater than the amount due, the amount of such excess may be retained by the Landlord to be credited to the next succeeding installments of Taxes. 

 

	3.5	 Rent and Additional Rent Past Due. All Rent past due shall bear interest from the date on which the same
became due until the date of payment at the prime rate of C1BC plus 1% per annum. The Landlord shall be entitled to allocate monies received from the Tenant as Rent in payment of Gross Rent or Additional Rent without priority. 

 

	3.6	 Net Lease. This Lease is a completely carefree net lease to the Landlord, except as expressly set out in
this Lease. The Landlord is not responsible for any expenses of any nature arising from or relating to the Premises or their use or occupancy, or their contents or the business carried on therein. The Tenant shall pay all charges of every nature and
kind relating to the Premises except as expressly set out in this Lease. 

  

	3.7	 Utilities, Etc. Intentionally Deleted. 

 

	3.8	 Telecommunication Services. Telecommunication services including network access, internet access, fibre
wire and telephony will be provided to the Tenant by the Landlord subject to fees established by the Landlord from time to time, not to exceed the proportionate cost to the Landlord of providing such services to the Premises. 

 

	3.9	 Conference and Meeting Room Facilities. Intentionally Deleted. 

  
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	3.10	 Lease Audit. In the event the Tenant audits the payments made by the Tenant to the Landlord during this
Lease, it forebears the bringing of any action, demand, claim or reconciliation for any overpayment after a period of time that is 120 days following any given Rental Year or the sooner termination of this Lease. Following this period, the Landlord
shall not be liable to the Tenant for any payments made or to be made under this Lease and the Tenant is thereby estopped from bringing any claim, demand, action or reconciliation in that regard. 

ARTICLE 4 - MAINTENANCE, REPAIRS AND ALTERATIONS 
  

	4.1	 No Landlord’s Repair. 

 

	 	(a)	 Except as otherwise specifically provided in this Lease, the Landlord shall not be obliged in any manner
whatsoever to maintain, improve, repair or replace any part of the Premises, or to construct any improvements and facilities in connection therewith, or to do or cause to be done any act or thing on or in connection with the Premises so as to render
them fit or suitable or more convenient for the purposes of the Tenant or any Person having use or occupancy thereof. 

  

	 	(b)	 If the Tenant fails to carry out any maintenance or repair required to be carried out by it pursuant to this
Lease, and to the reasonable satisfaction of the Landlord, within 30 days of notice from the Landlord, the Landlord may at its option, but without any obligation, carry out or cause to be carried out such maintenance or repair, without any liability
for any damage which may result to the Tenant’s property or business by reason thereof, provided Landlord uses commercially reasonable means to prevent the disruption to Tenant’s use of the Premises during such period of maintenance or
repair. The cost of such work shall be paid by the Tenant to the Landlord forthwith upon demand and collected as Additional Rent. 

  

	 	(c)	 Notwithstanding anything to the contrary herein, in the event of an emergency to health and safety of Users,
the Landlord, the Tenant or the structural integrity of the Building, the Landlord may re-enter the Premises without notice to effect, but only to the extent reasonably required to prevent, cease or repair,
the defect that constitutes the emergency and only to the extent necessary to stabilize same so it is no longer an emergency. Thereafter, the balance of this Lease with respect to entry and repair shall apply. 

 

	 	(d)	 Notwithstanding anything to the contrary, the Landlord shall effect all maintenance, repairs and replacements
as required from time to time in the discretion of the Landlord to all Common Areas of the Building, including the roof, roof membrane, windows, foundations, steel columns, steel deck, concrete slab floors, walls or columns, fixtures annexed to the
Building that were not installed by or for the benefit of the Tenant and are not intended to be removed by the Tenant, and master utility meters on the Premises. The costs of same may be allocated to the Tenant where the repair or replacement was
required due to the act, omission or negligence of the Tenant or the Tenant’s failure to comply with this Lease. 

  

	4.2	 Maintenance and Repair by the Tenant. Subject to the Janitorial Services, the Tenant shall, at its sole
cost, repair and maintain the whole of the Premises including: 

  

	 	(a)	 keeping the Premises clean and tidy at all times; and, 

 

	 	(b)	 adhere to the Landlord’s Health and Safety Manual, as amended from time to time, provided notification of
any change is given to the Tenant; 

 The Tenant shall have the further obligation of making all needed repairs to the
whole of the Premises which is necessary to maintain the improvements and equipment of the Building in such manner so that they function properly having regard to their nature, their age and the purpose for which they are intended to be used or to
keep the appearance of Premises neat, clean and presentable, except for reasonable wear and tear and except for damage caused by fire or other insured casualty, the repair of which is provided for in Article

  
 11 

 
9 hereof, and except for damage caused by, or the need for repair resulting from, renovation or construction undertaken by the Landlord or others to other areas of the Building. Such repairs and
maintenance shall be performed by the Landlord or its contractor/project manager to a standard consistent with the nature and condition of the Building as at the Commencement Date and subject to Article 9 of this Lease. Tenant shall communicate to
Landlord promptly all needed repairs and maintenance and Landlord shall have a right upon not less than 48 hours written notice to inspect the Premises to confirm its state of repair. The costs of the Landlord’s services under this
Section 4.2 shall be paid as Additional Rent. 
  

	4.3	 Approval of Tenant’s Alterations. 

 

	 	(a)	 Due to the nature of the Tenant’s business, the Tenant may need to make Alterations from time to time to
meet changing business conditions. No Alterations shall be made to the Premises without the Landlord’s prior written approval which approval shall not be unreasonably withheld or constrained. Notwithstanding the foregoing, the Tenant shall be
permitted to effect Alterations for the purpose of changing business conditions without the Landlord’s prior written approval where the Alterations are limited solely to modifying or moving Trade Fixtures or the Tenant’s equipment
(excluding leasehold improvements), and the cost to complete the Alterations are $50,000 or less, provided not less than ten (10) working days prior written notice is delivered to Landlord and FLWR and provided that such Alterations do not
modify the Landlord’s equipment or the Building operation or structure or increase the load on any utility service to the Premises or Building. Alterations for any other purpose, including to accommodate Assignments, shall be governed by
4.3(b), (c), (d), (e) and (f) and may be performed by Landlord as if same were Landlord’s Work. 

  

	 	(b)	 Except as otherwise permitted herein, when the Tenant desires to make an Alteration, the Tenant shall submit to
the Landlord details of the proposed Alteration including appropriate drawings and specifications. The Landlord shall review Tenant’s proposal in an expeditious fashion, which review shall include the review of same by FLWR, and deliver a
written decision to the Tenant in not more than ten (10) working days following receipt of the proposed Alteration. The Landlord’s reasonable out-of-pocket
costs of reviewing and approving all such proposed Alterations, including by the Architect or engineer as the case may be, shall be reimbursed by the Tenant, not to exceed $2,500. 

 

	 	(c)	 All Alterations shall be performed: 

 

	 	(i)	 at the sole cost of the Tenant; 

 

	 	(ii)	 by contractors and workmen on a pre-approved list of Tenant and
Landlord approved contractors and workmen or otherwise approved in writing by the Landlord and the Tenant, both parties acting reasonably; it is acknowledged by the parties that where an Alteration requires special knowledge, training or
certification in handling, exposure and treatment of radioactive materials, that, acting reasonably, the Tenant shall approve of all such contractors and workmen retained for the Alteration; 

 

	 	(iii)	 in a good and workmanlike manner; 

 

	 	(iv)	 in accordance with drawings and specifications approved by the Landlord, as applicable; 

 

	 	(v)	 in accordance with all applicable laws, regulations and the Landlord’s Health and Safety Manual, provided
that no Alterations shall be commenced prior to the Tenant obtaining, at its sole cost, a building permit and any other permits required by any governmental authority having jurisdiction; and 

 

	 	(vi)	 subject to the reasonable regulations and inspection of the Landlord. 

 

	 	(d)	 The Tenant shall not place anything on or make any openings in the roof or ceiling without the prior written
consent of the Landlord, which may be granted or withheld at the Landlord’s sole discretion. 

  
 12 

	 	
On the expiration of the Term or earlier termination of this Lease, the Tenant shall repair any damage caused to the Building as a result of having placed anything on or having made openings in
or having attached anything to the roof or ceiling, failing which the Landlord may, without obligation, repair the damage and charge the Tenant the costs of same and collect same as Additional Rent. 

 

	 	(e)	 All Alterations shall be pursued diligently to completion. Where it appears to the Landlord that the
Alterations arc not being pursued as required, the Landlord may require the Tenant to develop a timeline for completing same and, once approved by the Landlord, the Tenant’s failure to adhere to same may be considered a default of this Lease
pursuant to Article 10 hereof. 

  

	 	(f)	 In any event, the Tenant agrees to ensure, prior to commencement of any work or Alterations, that all of the
Tenant’s contractors, subcontractors, agents or authorized workmen who perform work to the Premises and/or Building as required, must: 

  

	 	(i)	 agree to be bound by the procedures and rules contained in the Landlord’s Health and Safety Manual;

  

	 	(ii)	 provide all clearances required by the Workplace Safety and Insurance Board or otherwise required at law;

  

	 	(iii)	 carry sufficient insurance, as required under the Building Code Act, the Occupational Health and
Safety Act, the Workplace Safety Act to the Landlord’s satisfaction; 

  

	 	(iv)	 be licensed by a governmental authority and carry such unexpired license at all times; and,

  

	 	(v)	 adhere to the terms of this Lease, including the Rules and Regulations. 

 

	4.4	 Repair Where at Fault. 

 

	 	(a)	 Where Tenant at Fault. Notwithstanding any other provisions of this Lease, if the Building or any part
thereof is damaged or destroyed or requires repair, replacement or alteration as a result of the act or omission of the Tenant or those for whom it is in law responsible, the cost of the resulting repairs shall be paid by the Tenant to the Landlord.

  

	 	(b)	 Where Landlord at Fault. Notwithstanding any other provisions of this Lease, if the Building or any part
thereof is damaged or destroyed or requires repair, replacement or alteration as a result of the act or omission of the Landlord or those for whom it is in law responsible, the cost of the resulting repairs shall be paid by the Landlord.

  

	4.5	 Removal of Improvements and Fixtures. All Leasehold Improvements shall immediately upon their placement
become part of the freehold and inure to the Landlord’s property free and clear of all liens, encumbrances and security interests without compensation to the Tenant. Except as otherwise agreed by the Landlord in writing, no Leasehold
Improvements or Trade Fixtures shall be removed from the Premises either during or at the expiration or sooner termination of the Term except that: 

  

	 	(a)	 the Tenant may, during the Term, in the usual course of its business, remove its Trade Fixtures in order to
replace or upgrade them, provided that the Tenant is not in default under this Lease; and 

  

	 	(b)	 the Tenant shall, at the expiration or earlier termination of the Term, at its sole cost, remove all of its
Trade Fixtures, and repair any damage caused to the Building or the Lands by such removal, including, without limitation, repairing all penetration and cracks in the walls, roof and floor of the Building or holes in the Lands caused by any
installation or removal of Trade Fixtures and/or Leasehold Improvements. If the Tenant does not remove its Trade Fixtures at the expiration or earlier termination of the Term, the Trade Fixtures shall, at the option of the Landlord, become its
property and may be removed and disposed of by the Landlord in such manner as it deems advisable. 

  
 13 

	 	
Landlord may require Tenant to allocate funds during the Term to cover the cost of decommissioning and restoration of the Premises, which requirement shall be governed by a separate agreement
between them that will, upon certain specified events, allow Landlord access to this fund to pay for decommissioning and restoration obligations of Tenant where Tenant is not otherwise able to do so. This covenant shall survive the expiration or
earlier termination of this Lease. 

  

	4.6	 Liens. The Tenant shall promptly pay for all materials supplied and work done at its request in respect
of the Premises so as to ensure that no lien is registered against any portion of the Lands or against the Landlord’s or the Tenant’s interest therein. If a lien is registered or filed in respect of materials supplied or work done at the
Tenant’s request, the Tenant shall discharge it at its expense forthwith, failing which the Landlord may at its option, but shall not be obligated to discharge same by paying the amount claimed to be due into court together with any additional
amount required at law or by the court. The amount so paid and all expenses of the Landlord, and any solicitor’s fees (on a full indemnity basis) incurred by the Landlord, shall be paid by the Tenant to the Landlord within 10 business days
after demand. The costs of so doing may be collected by the Landlord as Additional Rent. 

  

	4.7	 Notice By Tenant. The Tenant shall notify the Landlord forthwith of any accident, defect, damage or
deficiency in any part of the Premises which comes to the attention of the Tenant, its employees or contractors notwithstanding that the Landlord may have no obligation in respect thereof. 

 

	4.8	 No Landlord’s Liability. The Landlord shall not be responsible for any damage caused to the Tenant
by reason of failure of any equipment or facilities serving the Building, interruption or discontinuance of any private or public utility services or delays in the performance of any work for which the Landlord is responsible under this Lease. The
Landlord shall not be in breach of its covenant for quiet enjoyment or liable for any loss, costs or damages, whether direct or indirect, incurred by the Tenant due to any of the foregoing, but the Landlord shall
co-operate with the Tenant to restore the services, utilities or systems so stopped, interrupted or reduced. 

  

	4.9	 Common Areas. The Tenant shall have a non-exclusive licence over
the Common Areas outlined in Schedule “B” hereto. The Tenant shall not obstruct or encumber the Common Areas with any waste or property and shall not affix any fixtures, property or exterior signs whatsoever on any portion of the Common
Areas without the express written consent of the Landlord. Tenant shall be entitled to place interior wayfinding signage within the Common Areas. The Landlord agrees to fit out a reception area in the Common Areas as shown on Schedule A-1, at the Landlord’s expense and the Tenant shall supply the receptionist and all ongoing operating costs of the reception area during the Term. 

ARTICLE 5 - LANDLORD’S WORK. TENANT’S WORK AND FIXTURING PERIOD 

 

	5.1	 Landlord’s Work. Notwithstanding section 4.1 above, the Landlord shall coordinate and install the
Landlord’s work as outlined in Schedule “D” to this Lease (the ‘‘Landlord’s Work”) on the Premises. The Landlord has absolute discretion in its choice of materials and service providers and shall complete
the Landlord’s Work in a good and workmanlike manner as per applicable laws and prior to the Tenant taking possession of the Premises. Notwithstanding the foregoing, the Landlord agrees to make a good faith effort to accommodate any reasonable
request from the Tenant to engage service providers with domain expertise relating to the design, construction and commissioning of a facility suitable for a for- profit radiopharmaceutical company. All other
work required for the Premises including those items enumerated in Schedule E as Tenant’s Work, will be provided and installed by the Tenant at the Tenant’s sole expense. Both parties shall review Landlord’s Work upon completion and
identify within 10 days of Substantial Performance any Material Deficiencies, which Material Deficiencies shall be corrected within a reasonable time commensurate with projects of this nature. 

  
 14 

	5.2	 Tenant’s Work. 

 

	 	(a)	 The Tenant shall carry out its own fixturing at its own cost and expense as described in Schedule “E”
attached hereto (the “Tenant’s Work”). Such Tenant’s Work shall be subject to the approval of the Landlord, acting reasonably and without undue delay or constraint. Save and except for the cost of the Landlord’s Work,
the Landlord shall not be obligated to pay any leasehold credit or payment to the Tenant for any Leasehold Improvements. The Tenant agrees to finish the Premises to a standard commensurate to a first class commercial or industrial office building.

  

	 	(b)	 On completion of the Tenant’s Work, the Tenant shall forthwith furnish to the Landlord a statutory
declaration stating that: 

  

	 	(i)	 there are no construction liens outstanding against the Premises on account of the Tenant’s Work;

  

	 	(ii)	 that all accounts for work, services and materials have been paid in full with respect to all of the
Tenant’s Work; 

  

	 	(iii)	 the holdbacks required under the Construction Liens Act have been made and released in accordance with
that legislation; together with evidence in writing that: 

  

	 	(iv)	 all assessments under the Workplace Safety and Insurance Act have been paid; and, 

 

	 	(v)	 that the provisions of the Occupational Health and Safety Act have been adhered to during the completion
of the Tenant’s Work. 

  

	5.3	 Tenant’s Fixturing and Leasehold Improvements. 

 

	 	(a)	 The Tenant may install Trade Fixtures of the type usual for its business which shall be installed without
damage to or impairment of the heating ventilation, air conditioning, electrical, plumbing, mechanical or telecommunication systems of the Premises or Building. In the event of such installation, any such Trade Fixture shall be new or next to new
and, prior to installation, must be approved by the Landlord in writing as to their style and location of installation. 

  

	 	(b)	 Subject to the terms of this Lease, the Tenant shall have the right during the Term, when not in default, to
Alter such Trade Fixtures from time to time in conformity with the provisions of Section 4.3 above. 

  

	 	(c)	 The Tenant may, with the Landlord’s prior written consent, make changes, installations, alterations,
additions or improvements to the Premises which do not affect the sprinkler system, heating ventilation, air conditioning, plumbing, electrical or mechanical systems or any structural elements. 

 

	 	(d)	 The Landlord shall have the option at the end of the Term to require the Tenant to remove any and all Trade
Fixtures and Leasehold Improvements made by the Tenant during the Term and the Tenant shall do so at the Tenant’s expense forthwith upon notice from the Landlord, all in accordance with Section 4.5 above. 

 

	 	(e)	 The Tenant agrees that any Alteration or Leasehold Improvement made to the Premises must comply with all
municipal requirements (and for this purpose, the Landlord’s consent shall not in any way be deemed a waiver of this requirement) and the Tenant agrees to obtain all required consents and permits in relation thereto. In the event any such
installation, Alteration or improvement shall be made without the necessary consent or permit, then the Tenant shall immediately upon being directed by the Landlord to do so, remove, replace or otherwise amend same as directed by the Landlord so as
to comply with municipal requirements. Notwithstanding the foregoing, any work done by the Tenant in contravention of this Section or the Lease shall entitle the Landlord to immediately terminate this Lease and the Tenant shall be responsible for
any costs and damages resulting from such improper work and breach of this Lease. 

  
 15 

	5.4	 General. 

  

	 	(a)	 No items of the Tenant’s Work shall be commenced until the Tenant has secured approval thereof from every
governmental authority having jurisdiction and submitted proof of such approval to the Landlord, including the Tenant furnishing the Landlord with proof of having received a building permit for same. No Tenant’s Work shall commence for which
drawings and specifications are required until such drawings and specifications have been approved in advance, in writing by the Landlord or a written waiver of this requirement has been obtained from the Landlord, and all other requirements of
Section 4.3 hereof have been satisfied. 

  

	 	(b)	 The Tenant will not be permitted to enter the Premises for the purposes of performing the Tenant’s Work or
for the purpose of installing its fixtures and other equipment until the Tenant shall have deposited with the Landlord an insurance liability certificate in an amount not less than $2,000,000.00 per occurrence of such amount as the Landlord, acting
reasonably, may require from time to time with the Landlord added as an additional insured and with a cross liability clause; such insurance shall be on a comprehensive form and shall cover all hazards relating to any work performed by the Tenant or
its agents or independent contractors, as the case may be, on, in or at the Premises. 

  

	 	(c)	 Under no circumstances shall the Tenant, its employees, agents, contractors, or contractors’ employees,
enter onto any roof of the Building or make any opening in the floor, wall, ceiling, roof or fixture of the Building without the prior written approval of the Landlord. 

 

	 	(d)	 The opinion in writing of the Landlord’s Architect shall be binding upon both the Landlord and the Tenant
respecting all matters of dispute regarding the Landlords’ Work and the Tenant’s Work including the state of completion and whether or not work is completed in a good and workmanlike manner. 

ARTICLE 6 - ENTRY BY LANDLORD 
  

	6.1	 Entry By Landlord. The Landlord may enter the Premises on two business-days prior notice to the Tenant
(except in the case of emergency where the Landlord requires access to make repairs, in which case no notice shall be required) and provided that a Tenant representative is present to authorize access to all required areas of the Premises. Tenant
shall use its best efforts to accommodate Landlord requirements for access and shall not delay Landlord access based on Tenant representative availability. On the expiration or early termination of this Lease the Tenant shall surrender the Premises
to the Landlord in a good state of repair as required by the provisions of this Lease. 

  

	6.2	 Right To Show Premises. The Landlord and its agents shall have the right to enter the Premises to show
the Premises to prospective tenants, users or purchasers and, during the last three months of the Term (or the last three months of any renewal term if this Lease is renewed), provided any such showings shall be made with at least two business-days
prior notice to the Tenant and be conducted with a Tenant representative present. Tenant shall use its best efforts to accommodate Landlord requirements for access and shall not delay Landlord access based on Tenant representative availability.

  

	6.3	 Entry Not Forfeiture. No entry into the Premises by the Landlord pursuant to a right granted and in the
manner prescribed by this Lease shall constitute a breach of any covenant for quiet enjoyment, or (except where expressed by the Landlord in writing or otherwise intended) shall constitute a re-entry or
forfeiture. 

  

	6.4	 Remediation. The Tenant shall permit entry and access to the Premises by the Landlord for the purposes
of and without assuming any obligation for any remediation or environmental clean-up of the Lands wherever situate and as required under this Lease and any by-law,
statute, regulation, policy or ordinance of the City of Hamilton, Province of Ontario or Dominion of Canada. 

  
 16 

 ARTICLE 7 - INSURANCE AND INDEMNITY 

 

	7.1	 Tenant’s Insurance. 

 

	 	(a)	 The Tenant shall, throughout the Term, at its cost, take out and maintain: 

 

	 	(i)	 “All Risks” (including flood and earthquake) property insurance with reasonable deductibles
taken by a prudent tenant of premises similar to the Premises, naming the Landlord and any Mortgagee as additional insured parties, as their interests may appear and (except with respect to the Tenant’s chattels) incorporating the
Mortgagee’s standard mortgage clause. Such insurance shall cover: 

  

	 	(A)	 all property owned by the Tenant or for which the Tenant is legally liable located on or in the Building or on
the Lands, including Leasehold Improvements in an amount not less than the full replacement cost, with such cost to be adjusted no less than annually; and 

  

	 	(B)	 extra expense insurance in such amount as will reimburse the Tenant for loss attributable to all perils
referred to in this paragraph (a)(i) or resulting from prevention of access to the Premises. Such policy or policies, except with respect to extra expense insurance, shall, solely in respect of the Leasehold Improvements, provide that any loss shall
be adjusted and payable to the Landlord, with the proceeds to be held in trust to be used for repair and replacement of the property so insured; 

  

	 	(ii)	 comprehensive general liability insurance which includes: owner’s protective; personal injury; occurrence
property damage; and employers’ contingent contractual liability. Such policies shall contain inclusive limits of not less than $2,000,000.00; and 

  

	 	(iii)	 any other form of insurance or higher limits which the Tenant or the Landlord reasonably requires from time to
time in a form, in amounts and for risks against which a prudent tenant would insure. 

  

	 	(b)	 All policies referred to in subsection (a) above shall: 

 

	 	(i)	 be taken out with insurers acceptable to the Landlord, acting reasonably; 

 

	 	(ii)	 name the Landlord as an additional named insured in first priority; 

 

	 	(iii)	 be in a form satisfactory from time to time to the Landlord, acting reasonably; 

 

	 	(iv)	 be non-contributing with, and shall apply only as primary and not as
excess to any other insurance available to the Landlord; 

  

	 	(v)	 not be invalidated as respects the interests of the Landlord and of any Mortgagee by reason of any breach or
violation of any warranties, representations, declarations or conditions; and 

  

	 	(vi)	 contain an undertaking by the insurers to use reasonable efforts to notify the Landlord no less than 15 days
prior to any material change, cancellation or termination. 

 Certificates of insurance shall be delivered to the Landlord
annually, upon request, provided that the delivery to the Landlord of such certificates shall not limit or diminish the Tenant’s obligations contained in this subsection (b). 

 

	7.2	 Increase in Insurance Premiums. The Tenant shall not knowingly keep or use in the Premises any article
which may be prohibited by any fire insurance policy in force from time to time covering the Premises or the Building. If: (a) the conduct of business in the Premises; or (b) any acts or omissions of the Tenant in the Building or any part
thereof, cause or result in any increase in premiums for the insurance carried from time to time by the Landlord with respect to the Building the Tenant shall pay any such increase in premium. 

  
 17 

	7.3	 Cancellation of Insurance. If any insurance policy upon the Building or any part thereof shall be
cancelled or shall be threatened by the insurer to be cancelled or the coverage thereunder reduced in any way by the insurer by reason of the unauthorized use of the Premises by the Tenant or any assignee or subtenant of the Tenant, or by anyone
permitted by the Tenant to be upon the Premises, and if the Tenant fails to promptly initiate to remedy such condition within 48 hours after notice thereof by the Landlord, the Landlord may, at its option, either: 

 

	 	(a)	 re-enter the Premises forthwith and thereupon the Landlord shall have
the same rights and remedies as arc contained in Article 10; or 

  

	 	(b)	 enter upon the Premises and remedy the condition giving rise to such cancellation, threatened cancellation or
reduction, including removal of any offending article. The Tenant shall pay the cost of such action to the Landlord. 

The Landlord shall not be liable for any damage or injury caused to any property of the Tenant or of others located on the Premises as a
result of any such entry. 
 Notwithstanding the forgoing, the Landlord and the Tenant shall, prior to and at all times during the Lease,
ensure that all insurance providers for the Premises are fully aware of the proposed Use of the Premises by the Tenant, including the presence or use of radiopharmaceuticals. 
  

	7.4	 Loss or Damage. The Landlord shall not be liable for any death or injury arising from or out of any
occurrence in, upon, at or relating to the Premises or damage to property of the Tenant or of others located on the Premises, nor shall it be responsible for any loss of or damage to any property of the Tenant or others from any cause, unless any
such death, injury, loss or damage results directly from the negligence or willful act or omission of the Landlord, its agents, employees, contractors, or others for whom it may, in law, be responsible. The Landlord shall not be liable for any
injury or damage to Persons or property resulting from fire, explosion, falling plaster, falling ceiling tile, falling fixtures, steam, gas, electricity, water, rain, flood, snow or leaks from any part of the Premises or from the pipes, sprinklers,
appliances, plumbing works, roof, windows or subsurface of any floor or ceiling of the Building or from the street or any other place or by dampness or by any other cause whatsoever, unless such injury or damage directly results from the negligence
or willful act or omission of the Landlord, its agents, employees, contractors, or others for whom it may, in law, be responsible. The Landlord shall not be liable for any such damage caused by other tenant’s occupants or users of the Building
or on the Lands or by occupants of adjacent property thereto, or the public, or caused by construction or by any private, public or quasi-public work. All property of the Tenant kept or stored on the Premises shall be so kept or stored at the risk
of the Tenant only and the Tenant releases and agrees to indemnify the Landlord and save it harmless from any claims arising out of any damage to same. 

  

	7.5	 Landlord’s Insurance. The Landlord shall throughout the Term carry: 

 

	 	(a)	 insurance on the Building (excluding the foundations and excavations) and the machinery, boilers and equipment
contained therein for servicing the Building and owned by the Landlord or the owners of the Building (excluding any property with respect to which the Tenant is obliged to insure pursuant to Section 7.1) against damage by fire and extended
perils coverage; 

  

	 	(b)	 rental income insurance to cover all loss of rents for a period of 12 months; and 

 

	 	(c)	 such other forms of insurance as the Landlord reasonably considers advisable. 

Such insurance shall be in such reasonable amounts and with such reasonable deductions as would be carried by a prudent owner of a property
similar to the Building, having regard to size, age and location. The Landlord shall, upon request, provide a copy of an insurance certificate to the Tenant evidencing the placement of such insurance. Notwithstanding the Landlord’s covenant
contained in this Section 7.5 and notwithstanding any contribution by the Tenant to the cost of the Landlord’s insurance premiums, the Tenant agrees that: 
  

	 	(d)	 the Tenant is not relieved of any liability arising from or contributed to by its negligence or its willful act
or omissions; 

  
 18 

	 	(e)	 no insurable interest is conferred upon the Tenant under any policies of insurance carried by the Landlord; and

  

	 	(f)	 the Tenant has no right to receive any proceeds of any such insurance policies carried by the Landlord.

  

	7.6	 Indemnification of the Landlord. The Tenant shall indemnify the Landlord and save it harmless from and
against any and all loss (including loss of Rent), claims, actions, damages, liability and expense in connection with loss of life, personal injury, damage to property or any other loss or injury whatsoever arising from or out of this Lease, or any
occurrence in, upon or at the Premises, or the occupancy or use by the Tenant of the Premises or any part thereof, or occasioned wholly or in part by any act or omission of the Tenant or by anyone permitted to be on the Premises by the Tenant,
unless such loss, claim, action, damages, liability or expense arise as a direct result of the negligence or willful act or omission of the Landlord. If the Landlord shall, without fault on its part, be made a party to any litigation commenced by or
against the Tenant, then the Tenant shall protect, indemnify and hold the Landlord harmless and shall pay all expenses and reasonable legal fees incurred or paid by the Landlord in connection with such litigation. The Tenant shall also pay all
expenses and legal fees (on a substantial indemnity basis) that may be incurred or paid by the Landlord in enforcing the terms of this Lease, unless a court or arbitrator shall decide otherwise. 

 

	7.7	 Environmental Indemnity. 

 

	 	(a)	 Landlord’s Indemnity. The Landlord acknowledges and will indemnify the Tenant for all environmental
conditions presently existing or discovered in the future in respect of the Premises which pre-existed the Term and the Tenant shall not be responsible for such
pre-existing conditions (“Pre-existing Conditions”). The Landlord shall pay, satisfy, assume, discharge, observe, perform, fulfill, indemnify and save
the Tenant, its officers, directors and agents harmless against all liabilities, claims, demands, costs, orders, damages, and expenses of an environmental nature relating to the Premises, arising or accruing in any way from the Pre-existing Conditions. If the Tenant shall, without fault on its part, be made a party to any litigation commenced by or against the Landlord or become subject to any fine, penalty, or order of a judicial,
quasi-judicial or governmental authority relating to the Pre-existing Conditions, then the Landlord shall protect, indemnify and hold the Tenant harmless and shall pay all expenses and reasonable legal fees
incurred or paid by the Tenant in connection with such litigation, payment or action on a substantial indemnity basis. This indemnity is absolute and unconditional and shall survive the termination of this Lease or any Assignment thereof.

  

	 	(b)	 Tenant’s Indemnity. The Tenant shall indemnify the Landlord for any fines, fees or expenses
incurred by it in relation to any default by the Tenant for securing adequate permits, licenses or other required authorization to conduct or permit environmentally sensitive activities. The Tenant shall pay, satisfy, assume, discharge, observe,
perform, fulfill, indemnify and save the Landlord, its officers, directors and agents harmless against all liabilities, claims, demands, costs, orders, damages, and expenses of an environmental nature relating to the Premises, arising or accruing in
any way from the Tenant’s use and occupation of the Premises. Without limiting the foregoing, the Tenant agrees to abide by and indemnifies and saves the Landlord harmless from the Tenant’s failure to abide by the terms of any and all
Certificates of Property Use, Certificate of Requirement or any other order, restriction or requirement of the Ministry of Environment, registered on title to the Lands and/or provided to the Tenant by the Landlord. If the Landlord shall, without
fault on its part, be made a party to any litigation commenced by or against the Tenant or become subject to any fine, penalty, or order of a judicial, quasi-judicial or governmental authority, then the Tenant shall protect, indemnify and hold the
Landlord harmless and shall pay all expenses and reasonable legal fees incurred or paid by the Landlord in connection with such litigation, payment or action on a substantial indemnity basis. 

  
 19 

 This indemnity is absolute and unconditional and shall survive the termination of this Lease
or any Assignment thereof. 
 ARTICLE 8 - ASSIGNMENT AND TENANT’S SECURITY 

 

	8.1	 Assignments. The Tenant shall not permit or effect any Assignment without the prior written consent of
the Landlord, which consent may not be unreasonably withheld. Notwithstanding any statutory provision to the contrary, it shall not be considered unreasonable for the Landlord to take into account in deciding whether to grant or withhold its consent
whether, in the Landlord’s opinion, the financial background, business history and proposed use of the proposed Assignee (if different from the Tenant) is satisfactory. Consent by the Landlord to any Assignment, if granted, shall not constitute
a waiver of the necessity for such consent to any subsequent Assignment. 

  

	8.2	 Landlord’s Consent. If the Tenant intends to effect an Assignment, the Tenant shall give at least
30 days prior written notice to the Landlord specifying the identity of the proposed Assignee and shall provide such financial, business or other information in the Tenant’s possession or control relating to the Assignee and its principals as
the Landlord requires, together with copies of any documents which record the particulars of the proposed Assignment. 

  

	8.3	 Conditions of Assignment. 

 

	 	(a)	 If there is a permitted Assignment, the Landlord may collect Rent from the Assignee and apply the net amount
collected to the Rent required to be paid pursuant to this Lease but no acceptance by the Landlord of any payments by an Assignee shall be deemed a waiver of this covenant or any acceptance of the Assignee as tenant or a release from the Tenant from
the further performance by the Tenant of its obligations under this Lease. Any consent by the Landlord shall be subject to the Tenant and Assignee executing an agreement with the Landlord agreeing that the Assignee will be bound by all of the terms
of this Lease as if such Assignee had originally executed this Lease as tenant. 

  

	8.4	 No Advertising. The Tenant shall not advertise or permit to be advertised that the Premises arc
available for Assignment. 

  

	8.5	 Assignment by the Landlord. The Landlord shall have the unrestricted right to sell, lease, convey or
otherwise dispose of the Premises or any part thereof and this Lease, including the right to grant, pledge or register a Mortgage against the Lands, the Premises or this Lease. To the extent that the purchaser or assignee from the Landlord assumes
the obligations of the Landlord under this Lease, the Landlord shall thereupon and without further agreement be released of all liability under this Lease. 

  

	8.6	 Tenant’s Change of Ownership. The Tenant agrees to notify the Landlord of any changes to its
ownership structure thirty (30) days prior to such change. This provision shall not apply to a corporation where shares are listed and traded or become listed and traded on any recognized public exchange in Canada or the United States.

  

	8.7	 Change of Control. When at any time more than 50% of the voting shares of the corporation that is the
Tenant, including any shares which are voting shares only upon the occurrence of a contingency where such contingency has occurred and is continuing, arc Assigned, gifted, exchanged or distributed, the Tenant shall give written notice of the change
in control to the Landlord within ten (10) days. 

  

	8.8	 Permitted Assignments. Notwithstanding anything to the contrary in this Article 8, the Tenant shall be
entitled, without the consent of the Landlord (but upon not less than ten (10) days prior written notice to Landlord), to Assign all or any part of the Lease and/or the Premises to: 

 

	 	(a)	 a holding body corporate, subsidiary body corporate or affiliated body corporate (as all these terms are
defined pursuant to the Business Corporations Act (Ontario) as amended) of the Tenant; 

  
 20 

	 	(b)	 a corporation resulting from merger, amalgamation or other corporate reorganization of the Tenant; or

  

	 	(c)	 any person purchasing substantially all of the Tenant’s assets in Canada pursuant to an asset sale
transaction. 

 In addition, an Assignment shall not include the transfer of shares of the Tenant or a transfer of the
shares of any parent, affiliate or subsidiary of the Tenant, it being acknowledged that such share transactions do not require the consent of the Landlord in relation to this Lease. In the event (and only in the event) of a permitted Assignment
pursuant to Section 8.8(c), the current Tenant shall be released from all obligations in this Lease. 
  

	8.9	 Tenant’s Security. Where the Tenant desires to offer its leasehold interest in the Premises as
collateral or as security, whether the security is to be registered on title to the Lands or not, the Tenant must first obtain the written consent of the Landlord, FLWR, FLIT or Gore as may be required which may not be unreasonably withheld but
which may be given subject to conditions. Any such security given by the Tenant must be postponed in favour of those instruments or interests identified by the Landlord as having priority, including any Mortgage given by the Landlord, FLWR, FLIT or
Gore and any site plan or development agreement with the City of Hamilton. Any such security, if allowed by the Landlord, shall only be registered, if at all, on or against the leasehold parcel for the Building. 

ARTICLE 9 - DAMAGE, DESTRUCTION AND EXPROPRIATION 
  

	9.1	 No Abatement. If the Premises or the Building are damaged or destroyed in whole or part by fire or any
other occurrence, this Lease shall continue in full force and effect and there shall be no abatement of Rent except as provided in this Article 9. 

  

	9.2	 Damage to Premises. If the Building, including the Premises, is at any time destroyed or damaged as a
result of fire or any other casualty required to be insured against by the Landlord pursuant to this Lease or otherwise insured against by the Landlord, then the following provisions shall apply: 

 

	 	(a)	 if one-half or less of the area of the Premises is rendered
untenantable, the Landlord shall diligently repair it (excluding any Leasehold Improvements) and Gross Rent and Additional Rent shall abate proportionately to the portion of the Building rendered untenantable from the date of destruction or damage
until the Landlord’s repairs have been completed; 

  

	 	(b)	 if more than one-half of the area of the Premises is rendered
untenantable, the Landlord shall diligently repair it (excluding the Leasehold Improvements) and Gross Rent and Additional Rent shall abate entirely from the date of destruction or damage until the Landlord’s repairs have been completed;

  

	 	(c)	 if the Premises is not rendered untenantable in whole or in part, the Landlord shall diligently perform such
repairs to it (excluding the Leasehold Improvements), but in such circumstances Gross Rent and Additional Rent shall not terminate or abate; 

  

	 	(d)	 upon being notified by the Landlord that the Landlord’s repairs have been substantially completed, the
Tenant shall diligently perform all repairs to the Premises which are the Tenant’s responsibility under Sections 4.1 and 4.2 (including the installation of Leasehold Improvements) and all other work required to fully restore the Premises for
use in the Tenant’s business, in every case at the Tenant’s cost and without any contribution to such cost by the Landlord, whether or not the Landlord has at any time made any contribution to the cost of, supply, installation or
construction of Leasehold Improvements or actually supplied, installed or constructed such Leasehold Improvements; 

  

	 	(e)	 nothing in this Section 9.2 requires the Landlord to rebuild the Building to the condition which existed
before any such damage or destruction so long as the Building, as rebuilt (prior to the Tenant’s Work under paragraph (d) above), will, subject to compliance with all the existing laws be

  
 21 

	 	
constructed in accordance with design specifications agreed upon between the Landlord and the Tenant, having regard to the age of the Building at such time, and subject to the limitations on the
Landlord’s obligations to restore as set out in this Section 9.2; however, the Landlord’s obligation to rebuild the Building will, in the Landlord’s discretion, not apply if the damage or destruction occurs at any time during the
last 18 months of the Term; and 

  

	 	(f)	 provided that the Landlord has complied with its insurance obligations under Section 7.5 hereof, nothing
in this Section 9.2 shall require the Landlord to undertake any repairs or replacements having a cost in excess of the insurance proceeds actually received by the Landlord with respect to such damage or destruction and in the event such
insurance proceeds are less than the cost of such repair or replacement, the Landlord’s obligations shall be governed in the first instance by the provisions of Section 9.4. 

 

	9.3	 Right of Termination. Notwithstanding Section 9.2, if the damage or destruction which has occurred
in or to the Building is such that in the reasonable opinion of the Architect the Premises cannot be rebuilt or made fit for the purposes of the Tenant within 120 days of the happening of the damage or destruction, this Lease shall automatically
terminate on the 15th day after the determination of the Architect. If any such termination occurs, Rent shall be apportioned and paid to the date of such damage or destruction and the Tenant shall immediately deliver vacant possession of the
Premises in accordance with the terms of this Lease. Each party agrees to release the other for any claims, losses, damages or costs incurred by either as a result of the termination of the Lease under this Section 9.3, including loss of Rent,
profit or interruption to business, provided that a party may bring such claim if the damage or destruction giving rise to the termination is the result of the act or omission of the other party. 

 

	9.4	 Destruction of Building. 

 

	 	(a)	 Notwithstanding any other provision of this Lease, if all or any portion of the Building shall be damaged or
destroyed, to the extent that the estimated costs of repairing, restoring or rebuilding it shall, by the Architect’s estimate, exceed by 10% or more the proceeds of insurance available to the Landlord for the purpose of repair, restoration or
rebuilding, then the Landlord may, by notice to the Tenant given within 30 days of such damage or destruction, terminate this Lease, in which event neither the Landlord nor Tenant shall be bound to repair and the Tenant shall surrender the Premises
to the Landlord within 30 days after delivery of its notice of termination and Rent shall be apportioned and paid to the date on which the Tenant delivers vacant possession of the Premises, subject to any abatement to which the Tenant may be
entitled pursuant to Section 9.2. 

  

	 	(b)	 If the Landlord is entitled to, but does not elect to terminate this Lease, the Landlord shall, following such
damage or destruction, diligently repair if necessary that part of the Building damaged or destroyed (exclusive of any responsibilities of the Tenant with respect to such repair). If the Landlord elects to repair the Building, the Landlord may do so
in accordance with plans and specifications other than those used in the original construction of the Building; however, any such construction shall be suitable for the Tenant’s use, shall comprise an area not less than the original
construction and shall be of a quality equal to but not less than the original construction. 

  

	9.5	 Architect’s Certificate. The certificate of the Architect shall bind the parties as to:

  

	 	(a)	 whether or not the Premises are rendered untenantable and the percentage of the area of the Premises rendered
untenantable; 

  

	 	(b)	 the date upon which either the Landlord’s or Tenant’s work of reconstruction or repair is completed
or substantially completed and the date when the Premises are rendered tenantable; and, 

  

	 	(c)	 the state of completion of any work of the Landlord or Tenant. 

  
 22 

	9.6	 Expropriation. If the Building or any part thereof shall be expropriated or if any material portion of
the Lands shall be expropriated by any competent authority, then: 

  

	 	(a)	 the Landlord and the Tenant shall cooperate with each other so that the Tenant may receive such award to which
it is entitled in law for relocation costs and business interruption and so that the Landlord may receive the maximum award to which it may be entitled in law for all other compensation arising from such expropriation including, without limitation,
all compensation for the value of the Tenant’s leasehold interest in the Premises; and 

  

	 	(b)	 the Landlord shall have the option, to be exercised by written notice to the Tenant, to terminate this Lease
effective on the date the expropriating authority takes possession of the whole or any portion of the Building. 

ARTICLE 10 -DEFAULT 
  

	10.1	 Default and Remedies. If and whenever: 

 

	 	(a)	 any Rent is in arrears and is not paid within 10 days after written demand by the Landlord;

  

	 	(b)	 the Tenant has breached any of its obligations in this Lease (other than the payment of Rent) and the Tenant
fails to remedy such breach within 30 days (or such shorter period as may be provided in this Lease) or if such breach cannot reasonably be remedied within 30 days or such shorter period, the Tenant fails to commence to remedy and thereafter proceed
diligently to remedy such breach, in each case after notice in writing from the Landlord; 

  

	 	(c)	 the Tenant becomes bankrupt or insolvent or takes the benefit of any statute for bankrupt or insolvent debtors
or makes any proposal, assignment or arrangement with its creditors, or any steps are taken or proceedings commenced by any Person for the dissolution, winding-up or other termination of the Tenant’s
existence or the liquidation of its assets; 

  

	 	(d)	 a trustee, receiver, receiver/manager or like Person is appointed with respect to the business or assets of the
Tenant; 

  

	 	(e)	 this Lease or any of the Tenant’s assets are taken under a writ of execution; 

 

	 	(f)	 the Tenant uses or permits the use of the Premises in contravention of the Land Use Restrictions;

  

	 	(g)	 any of the Landlord’s policies of insurance with respect to the Building or any part thereof are cancelled
or materially adversely changed as a result of any use or occupancy of the Premises; 

  

	 	(h)	 the Tenant adopts and/or uses any intellectual property of the Landlord, McMaster University or MIP, without
first entering into an Intellectual Property License Agreement with the Landlord; 

  

	 	(i)	 the Tenant purports to make an Assignment or give security to a third party not in compliance with this Lease;
then without prejudice to any other rights which it has pursuant to this Lease or at law, the Landlord shall have the following rights and remedies, which are cumulative and not alternative: 

 

	 	(i)	 to terminate this Lease by notice to the Tenant; 

 

	 	(ii)	 to enter the Premises as agent of the Tenant and to re-let the Premises
for whatever term, and on such terms as the Landlord in its discretion may determine and to receive the Rent therefore and as agent of the Tenant to take possession of any property of the Tenant on the Premises, to store such property at the expense
and risk of the Tenant or to sell or otherwise dispose of such property in such manner as the Landlord may see fit without notice to the Tenant; 

  
 23 

	 	(iii)	 to remedy or attempt to remedy any default of the Tenant under this Lease for the account of the Tenant and to
enter upon the Premises for such purposes. No notice of the Landlord’s intention to perform such covenants need be given to the Tenant unless expressly required by this Lease. The Landlord shall not be liable to the Tenant for any loss or
damage caused by acts of the Landlord in remedying or attempting to remedy such default and the Tenant shall pay to the Landlord all expenses incurred by the Landlord in connection with remedying or attempting to remedy such default;

  

	 	(iv)	 to recover from the Tenant all damages and expenses incurred by the Landlord as a result of any breach by the
Tenant including, if the Landlord terminates this Lease, any deficiency between those amounts which would have been payable by the Tenant for the portion of the Term following such termination and the net amounts actually received by the Landlord
during such period of time with respect to the Premises; and 

  

	 	(v)	 to recover from the Tenant the full amount of the current month’s Rent together with the next 3
months’ installments of Rent; all of which shall accrue on a day-to-day basis and shall immediately become due and payable as accelerated Rent.

  

	10.2	 Distress. Notwithstanding any provision of this Lease or any provision of applicable legislation, none
of the goods of the Tenant on the Premises at any time during the Term shall be exempt from levy by distress for Rent in arrears, and the Tenant waives any such exemption. If the Landlord makes any claim against the goods and chattels of the Tenant
by way of distress, this provision may be pleaded as an estoppel against the Tenant in any action brought to test the right of the Landlord to levy such distress. Notwithstanding the foregoing, the Landlord covenants and agrees with the Tenant to
enter into an agreement with the Tenant’s lenders, from time to time, whereby the Landlord subordinates its rights of distraint in the Tenant’s Trade Fixtures, Leasehold Improvements, equipment and inventory to those of the lender, which
agreement shall be in form and content satisfactory to the Tenant’s lender. 

  

	10.3	 Costs. The Tenant shall pay to the Landlord on demand all costs incurred by the Landlord, including
reasonable lawyers’ fees, on a substantial indemnity basis (or full indemnity basis, if specifically stated herein), incurred by the Landlord in enforcing any of the obligations of the Tenant under this Lease. 

 

	10.4	 Allocation of Payments. The Landlord may at its option apply sums received from the Tenant against any
amounts due and payable by the Tenant under this Lease in such manner as the Landlord sees fit. 

  

	10.5	 Survival of Obligations. All obligations of the Tenant under this Lease which remain unfulfilled at the
determination of this Lease and the Landlord’s rights in respect of any failure by the Tenant to perform any of its obligations under this Lease shall survive and remain in full force and effect notwithstanding the expiration or earlier
termination of the Term. 

  

	10.6	 Additional Rent Deemed Rent. All Additional Rent shall be deemed to be Rent and the Landlord shall have
all rights against the Tenant for default in the payment of Additional Rent as for default in the payment of Gross Rent, except as otherwise herein provided. 

  

	10.7	 Landlord’s Right To Perform. 

 

	 	(a)	 Landlord’s Right to Perform. In addition to all other remedies the Landlord may have by this Lease,
at law or in equity, if the Tenant does not perform any of its obligations hereunder, the Landlord may, at its option, but without any obligation, perform any of such obligations of the Tenant, after 30 days’ notice to the Tenant or in the
event of an emergency, without notice, and in such event, the cost of performing any of such obligations, plus an administrative charge of 10% of such cost, shall be payable by the Tenant to the Landlord forthwith on demand, and collectable as
Additional Rent. 

  
 24 

	10.8	 Additional Dispute Resolution. 

Notwithstanding the remedies available to the Landlord under Section 10.1 above, in the event a party has breached a covenant under this
Lease, and before the Landlord is able to exercise any remedy under Section 10. l(i) to (v) in response to a breach or default under Section 10.1(b), the parties shall attempt to resolve the dispute or breach as follows: 

 

	 	(a)	 the Executive Director Finance and Operations of the Tenant and the AVP and CFO of the Landlord shall discuss
the nature of the dispute and attempt, within 10 days of notification of the dispute, to resolve same to the mutual satisfaction of the parties; 

  

	 	(b)	 if the representatives of the parties under Section 10.8(a) are not able to resolve the dispute within the
aforementioned 10 days, the CEO of the Tenant and the Vice-President (Administration) of the Landlord shall meet and attempt to resolve the dispute within 10 days; 

 

	 	(c)	 if the dispute is not resolved following the process under Section 10.8(a) and (b), then the parties may
consider mediating the dispute with a third party neutral or arbitration of the dispute (any of which is without obligation on either party), or exercise any remedies available under this Lease or at law; 

 

	 	(d)	 Provided that any such dispute is not resolved by the good-faith negotiations, discussions, mediations or other
resolution processes set out above, the Tenant shall have the right to terminate this Lease upon ninety (90) days prior written notice, in which event the Tenant shall thereupon vacate the Premises in accordance with the requirements of this Lease.

 ARTICLE 11 - STATUS STATEMENT, ATTORNMENT AND SUBORDINATION 

 

	11.1	 Status Statement. Within 10 days after written request by the Landlord, the Tenant shall deliver to the
Landlord, in a form supplied by the Landlord and reasonably satisfactory to the Tenant, a certificate as to the status of this Lease, the amount of Rent then being paid and the dates to which it has been paid and any other factual matters pertaining
to this Lease as to which the Landlord shall request in such certificate. 

  

	11.2	 Subordination. This Lease and all rights of the Tenant shall be subject and subordinate to any and all
Mortgages from time to time in existence against the Lands or any part thereof. On request, the Tenant shall subordinate this Lease and its rights under the Lease to any and all Mortgages and to all advances made under such Mortgages provided the
Mortgagee enters into a non-disturbance agreement with the Tenant to the effect that so long as the Tenant is not in default in any of its obligations hereunder the party to which it is subordinating its
interest shall not disturb the Tenant’s possession of the Premises during the Term. 

  

	11.3	 Attornment. Subject to Section 11.2, the Tenant shall promptly attorn on request to any Mortgagee, or to
the registered owner of the Lands or the lessee under any Lease of all or substantially all of the Lands made by the Landlord or otherwise affecting the Lands or the purchaser on any foreclosure or sale under proceedings taken under any Mortgage,
and shall recognize such Mortgagee, owner, lessee or purchaser as the Landlord under this Lease. 

 ARTICLE 12 - GENERAL
PROVISIONS 
  

	12.1	 Quiet Enjoyment. The Landlord covenants that if the Tenant pays Rent and fully observes and performs all
of its obligations under this Lease, the Tenant shall, subject to the provisions of this Lease, be entitled to peaceful and quiet enjoyment of the Premises for the Term without interruption or interference by the Landlord or any Person claiming
through the Landlord. 

  

	12.2	 Rules and Regulations. The Tenant shall comply with all Rules and Regulations, and reasonable amendments
to them, adopted by the Landlord from time to time, so long as such Rules and Regulations are not inconsistent with and do not contradict this Lease and provided that no amendments to the Rules and Regulations shall be binding on the Tenant until it
shall have received fifteen (15) days prior written notice thereof. Unless any amendment is required by law, proposed amendments to the Rules and Regulations by 

  
 25 

	 	
the Landlord shall only be effected or applicable to the Tenant provided the Landlord first enters into consultations with the Tenant and such consultations shall last no longer than ten
(10) business days after notice is delivered to the Tenant, unless extended by mutual agreement in writing. 

  

	12.3	 Delay. Except as expressly provided in this Lease, whenever the Landlord or Tenant is delayed in the
fulfillment of any obligation under this Lease, other than the payment of Rent, by an unavoidable occurrence which is not the fault of the party delayed in performing such obligation, then the time for fulfillment of such obligation shall be
extended during the period in which such circumstances operate to delay the fulfillment of such obligation. 

  

	12.4	 Overholding. If the Tenant remains in possession of the Premises with or without the Landlord’s
consent after the end of the Term, there shall be no tacit renewal of this Lease or the Term, and the Tenant shall be deemed to be occupying the Premises as a Tenant from month to month at a monthly Gross Rent equal to 150% of the monthly amount of
Gross Rent payable during the last month of the Term, and otherwise upon the same terms as set out in this Lease, if applicable to a monthly tenancy. 

  

	12.5	 Waiver. If either the Landlord or Tenant excuses or condones any default by the other of any obligation
under this Lease, this shall not be a waiver of such obligation in respect of any continuing or subsequent default and no such waiver shall be implied. 

  

	12.6	 Registration. Neither the Tenant nor anyone claiming under the Tenant shall register this Lease or any
Assignment thereof on title to the Lands without the prior written consent of the Landlord. If the Tenant or any permitted Assignor wishes to register a document evidencing this Lease, then the Landlord shall at the request and expense of the Tenant
execute a notice, caveat or short form of Lease for the purposes of registration in such form as reasonably required by the Tenant and without disclosure of any terms which the Landlord does not desire to have disclosed. Such registration, if
allowed by the Landlord, shall only be registered against the leasehold parcel for the Building. 

  

	12.7	 Notices. Any notice, consent or other instrument which may be or is required to be given under this
Lease shall be in writing and shall be delivered in person or sent by registered mail postage prepaid or transmitted by facsimile addressed to each of the Landlord and Tenant at their respective addresses and if sent by facsimile to the following
numbers: 

 If to the Landlord: 

McMASTER UNIVERSITY 
 Attention:
Vice-President (Administration) 
 1280 Main Street West, Gilmour Hall Room 202 

Hamilton, Ontario, L8S 4L8 
 If to
the Tenant: 
 Fusion Pharamceuticals Inc. 

Attention: CEO 
 270
Longwood Road South, Hamilton, Ontario L8P 0A6 and 1280 Main Street West, NRB-A316 Hamilton Ontario L8S 4K1 and via valliant@fusionpharma.com and contracts@fusionpharma.com 

 

	12.8	 Successors and Assigns. The rights and liabilities created by this Lease extend to and bind the
successors and Assigns of the Landlord and the permitted successors and Assigns of the Tenant. No rights, however, shall enure to the benefit of any Assignee unless the provisions of Article 8 are complied with. 

 

	12.9	 Joint and Several Liability. If there is at any time more than one Tenant or more than one Person
constituting the Tenant, their covenants shall be considered to be joint and several and shall apply to each and every one of them. If the Tenant is or becomes a partnership, each Person who is a member, or shall become a member, of such partnership
or its successors shall be and continue to be jointly and severally liable for the performance of all covenants of the Tenant pursuant to this Lease, whether or not such Person ceases to be a member of such partnership or its successor.

  
 26 

	12.10	 Consent. Whenever in this Lease the consent or approval of the Landlord is required, such consent or
approval will not be unreasonably withheld or delayed unless specifically stated to the contrary. 

  

	12.11	 Entire Agreement. This Lease and the schedules attached set forth the entire agreement between the
Landlord and Tenant concerning the Premises. There are no agreements or understandings between them other than as set out in this Lease. This Lease and its schedules may not be modified except by agreement in writing executed by the Landlord and
Tenant. 

  

	12.12	 Force Majeure. The parties shall not be considered in default of their obligations hereunder insofar as
their performance or observance of their obligations as prevented, hindered or delayed by any act of God, war, riot, civil commotion or insurrection, act of terrorism, fire, flood or any natural disaster, government action, strikes, boycotts or
other labour disputes, shortage of materials, delay in transportation, delay in delivery by vendors, suppliers, subcontractors or other like circumstances beyond their control. 

 

	12.13	 Governing Law. The Landlord and the Tenant shall at all times in the performance of their respective
obligations under this Lease comply with all laws, by-laws, regulations, statutes and policies of the City of Hamilton, the Province of Ontario and Dominion of Canada, applicable thereto.

  

	12.14	 Severability. Where any portion of this Lease is deemed voidable by any competent authority having
jurisdiction over this Lease or any law, by-law or regulation affecting it, the offending provision shall be severed from the Lease with the remaining portions continuing to be legally valid and enforceable.

  

	12.15	 Counterparts. This Lease may be signed in counterparts, each of which is deemed to be an original and
all of which shall constitute one and the same document. 

  

	12.16	 Further Assurance. The Landlord and the Tenant will, from time to time, at the other’s request and
expense and without further consideration, take such further action as the other may require to more effectively complete any matter provided herein. 

  

	12.17	 Planning Act. The Lease, the renewal options and the transactions within it are subject to compliance
with the Planning Act, R.S.O. 1990, c.P. 13, as amended, where necessary. The costs of rendering this Lease compliant with said Act shall be at the expense of the Tenant. 

[SIGNATURES FOLLOW ON NEXT PAGE] 

  
 27 

 IN WITNESS WHEREOF the parties hereto have hereunto affixed their respective
corporate seals under the hands of their respective property officers duly authorized in that behalf. 
  

			
	McMASTER UNIVERSITY
		
	Per:	 	/s/ Roger Couldrey
	Name: Roger Couldrey
	Title: Vice President, Administration

  

			
	Per:	 	/s/ Deidre (Dee) Henne
	Name: Deirdre (Dee) Henne
	Title: Assistant Vice-President (Administration) and Chief Financial Officer
	
	We have authority to bind the University

  

			
	FUSION PHARMACEUTICALS INC.
		
	Per:	 	/s/ John Valliant
	Name: John Valliant
	Title: Chief Executive Officer
	
	I/We have authority to bind the Corporation.

  
 28 

 SCHEDULE “A” 

DESCRIPTION OF THE BUILDING, THE LANDS & THE PREMISES 

The Lands 
 The Building is situated on lands municipally
known as 200-270 Longwood Road South, which Lands are legally described as follows: 
 Part of Lot 8 on
Registrar’s Compiled Plan 1479 being Parts 1-4 on Reference Plan 62R-3576, save and except Parts 1-6 on Reference Plan 62R-19193 former Township of Barton s/t CD55731 but not the t/w therein; City of Hamilton, being all of PIN 17132-0421 (LT) together with leasehold parcel 17132-0423. 

The Premises 
 The Premises are delineated in Red on the
sketch attached hereto as Schedule A-l, being approximately 5,415 net assignable square feet of rentable area. 

  
 29 

 SCHEDULE “A-1” – SKETCH OF PREMISES

  
 

 

  
 30 

 SCHEDULE “B” – DESCRIPTION OF COMMON AREAS 

The Common Areas of the Building shall be considered: 
  

	 	1.	 The reception, hallways, corridors, stairwells, elevators and staircases within the Building leading from the
exterior of the Building directly to the Premises; 

  

	 	2.	 The heating, air conditioning and air ventilation systems of the Building not located within the Premises or
any other leased unit or space within the Building; 

  

	 	3.	 Areas located beneath the base floorboard of the Premises, behind the interior walls of the Premises (excluding
partition walls with the Premises), and above the ceiling of the Premises. 

  

	 	4.	 Any designated garbage bins located on and servicing the Building; 

 

	 	5.	 Any designated loading docks which facilitate the moving of items into the Building; 

 

	 	6.	 Any washroom facilities, lounges, or first aid rooms not within the Premises but within the Building.

  
 31 

 SCHEDULE “C” 

PARKING 
 The parking rates will be as
follows: 
  

			
	MIP Lot 2	  	$60.00 per month per parking spot
		
	MIP Lot 3	  	$60.00 per month per parking spot
		
	MIP Lot 4	  	$60.00 per month per parking spot

 The following rules are incorporated into each license for the use of a parking spot: 

 

	 	1.	 the use of the issued parking spot is pursuant to a license between the Tenant and the Landlord for the space
only and does not guarantee a space reserved for the Tenant; 

  

	 	2.	 the license is not transferable or assignable and where the Tenant plans to designate individuals or vehicles
to spaces, it shall identify, at the time of issuance, those vehicles by registration with the MIP Administrative Office; 

  

	 	3.	 any damage caused by the Tenant or its invitees to the parking lot shall be repaired by, and at the sole
expense of, the Tenant; 

  

	 	4.	 the Landlord and Gore shall not in any way be held liable for loss or damage to vehicles occasioned by the
Tenant’s use of the parking space; and 

  

	 	5.	 Prices are subject to change annually. 

These rules may be amended by the Landlord at any time upon giving the Tenant notice of such amendment in writing or by posting the amendment in a public
location for all Tenants and users of the Building to view. 
 For Users who also have McMaster University parking access privileges, reciprocal parking
passes are available at the applicable rates set by McMaster from time to time for such passes with current rates set out below: 
  

					
	 MIP/West Campus or Ward Avenue Permit
	  	$	67.80	 
	 MIP/Main Campus Permit (B, C, D, 1)
	  	$	94.00	 
	 MIP/Main Campus Permit (G, Q)
	  	$	91.00	 
	 MIP/Main Campus Permit (H, K, L)
	  	$	73.00	 
	 MIP/Underground Wilson
	  	$	120.00	 
	 MIP/Underground Stadium Permit
	  	$	101.70	 

 One parking space outside the Nuclear Research Building (NRB) on McMaster University main campus will be
provided to Tenant by Landlord for short stay requirements 

  
 32 

 SCHEDULE “D” – LANDLORD’S WORK 

 

	1.	 Segregated door locks with sub-master key for each tenant

  

	2.	 Conversion of two board rooms to offices for Fusion occupancy 

 

	3.	 Installation of door on corridor leading to future atrium to segregate Fusion hot work area—add card swipe
to this door 

  

	4.	 Installation of a partition in Organic Chemistry Rm 116 to prevent occupants from travelling between
radioactive work area and non-radioactive work area 

  

	5.	 Installation of hinged door with card access read for carrel cubicle room (Rm 117) 

 

	6.	 Modification of Data Room 103 to accommodate Fusion IT Server 

 

	7.	 Modification of Reception desk to accommodate two personnel 

 

	8.	 Signage interior to BEAM for Fusion 

 

	9.	 Modification to the data to create a separate network via VLAN 

 

	10.	 Phone systems are VOIP and will similarly be separate for Fusion 

 

	11.	 Segregate hazardous waste storage in the loading dock so each tenant has a defined lockable storage area

  

	12.	 By MIP—signage exterior to building 

 

	13.	 McMaster will provide access to existing BEAM IT infrastructure, including wireless access. McMaster can also
provide a server rack for Fusion use, recognizing there arc space limitations within the IT/data rooms. 

  
 33 

 SCHEDULE “E” – TENANT’S WORK 

Tenant shall supply, activate and be responsible for all ongoing costs associated with telephones (VOIP). 

  
 34 

 SCHEDULE “F” – JANITORIAL SERVICES 

 

	1.	 The Landlord agrees to provide the following basic Janitorial Services to the
non-cGMP areas of the Premises (i.e., those areas with restricted access as designated and identified by the Tenant) and only during those times when a Tenant representative is present at the Premises:

 NIGHTLY SERVICES 
  

	 	(a)	 All non-carpeted flooring will be swept using a dust-preventive method;
spillages will be removed. 

  

	 	(b)	 All carpeting will be vacuumed in traffic lanes, meaning the area of movement by an employee to and from
his/her desk and litter will be picked up in any other area. 

  

	 	(c)	 All waste paper receptacles will be emptied, with liners replaced as necessary and if applicable.

  

	 	(d)	 All furniture, window ledges, and workstation partitions will be dusted to the level of five feet. Documents or
papers present shall not be removed or adjusted. 

  

	 	(e)	 Finger marks and smudges will be removed from walls, glazing, and file cabinets. 

 

	 	(f)	 Telephones will be dusted. 

 

	 	(g)	 All entrance doors will be locked during and after housekeeping service. 

PERIODIC SERVICES 
  

	 	(a)	 Non-carpeted floors will be spray-buffed weekly, stripped and
refinished twice each year. 

  

	 	(b)	 Carpeted floors will be thoroughly vacuumed weekly: wall-to-wall, corners and edges, desk wells, and shall be spot-cleaned weekly, spots defined as having a maximum diameter of three inches. 

 

	 	(c)	 Vertical surfaces, such as sides of desks, tables, and filing cabinets will be hand dusted weekly.

  

	 	(d)	 Wall hangings (except artwork), tops of doors, high ledges and cabinets, exit signs, wall clocks and similar
items will be dusted once per month. 

  

	 	(e)	 All fabric chairs will be whisked or vacuumed monthly. 

 

	 	(f)	 Telephones will be wiped clean monthly with a germicidal agent. 

 

	 	(g)	 All waste receptacles will be washed monthly. 

 

	 	(h)	 Blinds/drapes will be dusted/vacuumed twice annually, as appropriate. 

 

	 	(i)	 Window ledges will be damp-wiped weekly. 

 

	 	(j)	 Wax, scuff marks, or dust will be removed from baseboards weekly. 

 

	 	(k)	 Interior glazing will be washed, on both sides, twice each year. 

 

	 	(l)	 Recycling receptacles will be emptied and reclined as required. 

  
 35 

	2.	 The Tenant shall: 

  

	 	(a)	 be responsible for cleaning and maintaining any draperies, carpets, mats and rugs; 

 

	 	(b)	 be responsible for cleaning and maintenance of its equipment, Trade Fixtures and Leasehold Improvements;

  

	 	(c)	 leave the Premises in a reasonably tidy condition at the end of each business day. 

 

	 	(d)	 permit the Landlord’s caretaker or janitor to clean the Premises between 6:00 PM and 8:00 AM.

  

	3.	 The Janitorial Services shall be performed at the Landlord’s direction without interference by the Tenant,
and the Landlord shall be excused from performance of such Janitorial Services whenever access to any part of the Premises is denied or prevented by the occupants thereof. 

 

	4.	 The Landlord shall not be responsible for any act or omission on the part of the Person employed to perform
such Janitorial Services. 

  

	5.	 The Landlord’s Janitorial Services do not include removal of any hazardous materials, outlined in the
Landlord’s Health and Safety Manual. 

  

	6.	 Janitorial Services for cGMP areas of the Premises may be outsourced directly by Tenant, provided that Tenant
obtains the prior written approval of the Landlord and FLWR, not to be unreasonably withheld, and which outsourcing shall be for the sole account of the Tenant. 

  
 36EX-10.13

 Exhibit 10.13 

CERTAIN CONFIDENTIAL PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND REPLACED WITH “[***]”. SUCH IDENTIFIED INFORMATION HAS BEEN
EXCLUDED FROM THIS EXHIBIT BECAUSE IT IS (I) NOT MATERIAL AND (II) WOULD LIKELY CAUSE COMPETITIVE HARM TO THE COMPANY IF DISCLOSED. 

LICENSE AGREEMENT 
 This AGREEMENT dated as
of February 22, 2017 is made by and between Fusion Pharmaceuticals Inc. a Canadian corporation, having its principal place of business at NRB-A316, 1280 Main St West, Hamilton, ON. L8S 4K1
(“Fusion”) and the Centre for Probe Development and Commercialization Inc., a Canadian corporation, having its principal place of business at NRB-A316, 1280 Main St West, Hamilton, ON
L8S 4K1 (“CPDC”). 
 Introduction: 

CPDC has developed and obtained certain Technology (as defined below) relating to the development and manufacture of radiopharmaceuticals. CPDC has also
created Fusion Pharmaceuticals Inc. in order to advance and commercialize the radiopharmaceuticals that it has created. As a consequence CPDC desires to license rights to the Technology to Fusion, and Fusion desires to license from CPDC, on an
exclusive basis, the right to develop, market, make, use, and sell products derived through the use of the Technology. In consideration of the mutual covenants and promises contained in this Agreement and other good and valuable consideration
including the payment of [***] from Fusion to CPDC and the issuance by Fusion of 4,375,000 Voting Common Shares in its capital to CPDC on December 22, 2014, the receipt and sufficiency of which are hereby acknowledged, Fusion and CPDC agree as
follows: 
  

	1.	 Definitions: 

As used in this Agreement, the following terms, whether used in the singular or plural, shall have the following meanings: 

 

	 	1.1.	 “CPDC Patent Rights” means all patents and patent applications (which for all purposes of this
Agreement shall be deemed to include certificates of invention, applications for certificates of invention, and utility models) throughout the world, covering or relating to the Technology, including any substitutions, extensions, reissues,
reexaminations, renewals, divisions, continuations, or continuations-in-part, which CPDC owns or controls, or which CPDC has the right to grant sublicenses to Fusion, as
of the date of this Agreement and thereafter, including any Improvements made by CPDC after the date of this Agreement. All current patents, patent applications, trade secrets and draft patent applications in the CPDC Patent Rights are listed in
Schedule A. 

  

	 	1.2.	 “CPDC Technology Rights” means all technical information owned or possessed by CPDC as of the
date of this Agreement and thereafter, whether patentable or otherwise, relating to the Technology, which information is necessary or useful for Fusion and its sublicensees to develop, manufacture, use, and/or sell Licensed Products hereunder,
including any Improvements made by CPDC after the date of this Agreement. For the avoidance of doubt, CPDC Technology Rights means all pre-clinical and clinical, biological, analytical, chemical,
radiochemical, and in vitro/in vivo data concerning the characterization of [***], the IGF-1 receptor, all [***] Program compound-specific data and all
pre-clinical and clinical trial documents, agreements and regulatory filings and includes the enhanced linker technology for improved excretion, such as [***] and [***], which intellectual property filings are
expected in the future. 

	 	1.3.	 “Confidential Information” means all materials, trade secrets, or other information,
including, without limitation, proprietary information and materials (whether or not patentable) regarding a Party’s technology, products, business information, or objectives, which is designated as confidential in writing by the disclosing
Party, whether by letter or by the use of an appropriate stamp or legend, prior to or at the time any such material, trade secret, or other information is disclosed by the disclosing Party to the other Party. Notwithstanding the foregoing to the
contrary, materials, trade secrets, or other information which is orally or visually disclosed by a Party, or is disclosed in writing without an appropriate letter, stamp, or legend, shall constitute Confidential Information if the disclosing Party,
within [***] after such disclosure, delivers to the other Party a written document or documents describing the materials, trade secrets, or other information and referencing the place and date of such oral, visual, or written disclosure and the
names of the persons to whom such disclosure was made. 

  

	 	1.4.	 “Field” means the development, testing and commercialization of products and processes for the
treatment, prevention, diagnosis, monitoring, control and maintenance of all disease indications and disorders in humans. 

  

	 	1.5.	 “Improvements” means, with respect to the Technology, all alterations, changes, amendments,
improvements, refinements, betterments, modifications, upgrades, enhancements to, new material derived from, and all Derivative Works of, the Technology. For purposes of this definition, “Derivative Works” means, with respect to
copyrightable works, any translation (including translation into other computer languages), portation, modification, correction, addition, extension, upgrade, improvement, compilation, abridgement or other form in which an existing work may be
recast, transformed or adapted, including any compilation that incorporates such any pre-existing copyrightable works. 

 

	 	1.6.	 “Licensed Products” means a product which, or the manufacture, use, or sale of which, is
covered by CPDC Technology Rights in the country where the product is manufactured, used or sold. 

  

	 	1.7.	 “Party” means Fusion or CPDC; “Parties” means Fusion and CPDC taken together.

  

	 	1.8.	 “Technology” means any of the technology owned or licensable by CPDC which relates to the
Insulin-like Growth Factor-1 Receptor (IGF-1R or IGF-1 receptor) Program ([***] Program) and the novel linker technology
associated with the [***] Program. 

 2. License: 

2.1. License. Subject to Section 2.4 and the payment of the fee provided in Section 3.1 and the fulfillment of the other terms and conditions of this
Agreement, CPDC hereby grants to Fusion a worldwide, exclusive license under all of the CPDC Patent Rights and CPDC Technology Rights, including the right to sublicense any or all of such rights, to make, have made, use, have used, sell, have sold
and make Improvements to the CPDC Patent Rights and CPDC Technology Rights, in Fusion’s sole discretion, in the Field (and to have such rights exercised on Fusion’s behalf by third parties). Fusion shall inform CPDC if any sublicense is
granted to the CPDC Patent Rights and CPDC Technology Rights. Fusion shall ensure that any sublicensee will be required to comply with the terms of this Agreement. 

 2.2. Assistance. CPDC shall provide Fusion with all information related to the CPDC Patent Rights and CPDC
Technology Rights as may be known or possessed by CPDC and as may be reasonably necessary for Fusion to exploit the licenses granted in Section 2.1, including any materials related to the acquisition of any government approvals for the Licensed
Products. CPDC shall provide Fusion with reasonable technical assistance in connection with such transfer to Fusion of the information related to the CPDC Patent Rights and CPDC Technology Rights. 

2.3. Use by CPDC. Nothing herein shall grant to Fusion and rights of ownership or title in the CPDC Patent Rights and CPDC Technology Rights or other rights
therein other than the rights of use pursuant to the License and subject to the terms and conditions of this Agreement, nor shall anything herein limit or prejudice the rights of CPDC to use the CPDC Patent Rights and CPDC Technology Rights to
conduct its own internal research for non-commercial purposes and any commercial activities, including the manufacture and commercialization of new products utilizing the CPDC Patent Rights and CPDC Technology
Rights, that are outside of the Field. 
 2.4. Third Party Intellectual Property. Fusion acknowledges that: (a) the CPDC Patent Rights and CPDC
Technology Rights incorporate the use of antibody [***], which is owned by Immunogen, Inc. (“Immunogen”); and (b) it will need to license from Immunogen the right to use [***] in a manner consistent with Fusion’s use of
CPDC Patent Rights and CPDC Technology Rights under this Agreement. 
 3. Fees: 

3.1. License Fees. Fusion shall pay to CPDC a fee of [***] as full and complete payment for the License. 

3.2. Patent Fees. Fusion shall repay to CPDC all legal and prosecution costs relating to the CPDC Patent Rights and Improvements incurred to the date of the
signing of the License. All costs for the prosecution of the CPDC Patent Rights following the execution of the License will be the responsibility of Fusion. 

4. Representations, Warranties, and Covenants: 
 4.1.
Representations and Warranties of CPDC. Subject to Section 2.4, CPDC hereby represents and warrants that: (i) CPDC owns or controls all rights to the CPDC Patent Rights and CPDC Technology Rights; and (ii) CPDC has the authority to
grant to Fusion all of the rights granted hereunder. 
 4.2. Covenant of Fusion. Fusion hereby covenants and agrees to use commercially reasonable efforts
to develop, and obtain all necessary regulatory approvals for, and commercialize Licensed Products. Fusion shall use commercially reasonable efforts to maintain and prosecute diligently and keep in good standing and in full force all of the CPDC
Patent Rights. In the 

 
event that Fusion breaches its obligations under this Section 4.2, Fusion shall not be liable for any damages or other compensation as a result thereof, and CPDC’s sole and exclusive
remedy shall be to maintain and prosecute diligently and keep in good standing and in full force those CPDC Patent Rights that Fusion has confirmed to CPDC in writing that Fusion no longer wishes to pursue. 

5. Intellectual Property Rights: 
 5.1. Ownership. CPDC
shall own the entire right, title, and interest in and to all CPDC Patent Rights and CPDC Technology Right, except that Fusion shall own all right, title and interest to any Improvements that are created, developed or acquired by, or on behalf of,
Fusion during the term of this Agreement, including any intellectual property rights therein. Nothing in this Agreement shall require Fusion to provide any such Improvements or notice thereof to CPDC. 

5.2. Right of Fusion to Prosecute Applications. CPDC and Fusion agree that during the term of this Agreement, Fusion shall be solely responsible for the
prosecution and maintenance of the Technology, CPDC Patent Rights and CPDC Technology Rights. The Parties shall provide each other with copies of all substantive communications to and from patent offices regarding applications or patents relating to
the Technology promptly after the receipt thereof. Copies of proposed substantive communications from Fusion to patent offices shall be provided to CPDC in sufficient time before the due date in order to enable CPDC an opportunity to comment on the
content thereof. Fusion shall use reasonable efforts to incorporate CPDC’s comments into any substantive communications. Fusion shall timely notify CPDC (but in no event less than [***] prior to the expiration of any priority rights period) if
it intends not to seek patent protection on the Technology in any country, and CPDC shall have the right, at its expense and in CPDC’s name, to file, prosecute, maintain, and enforce in such country patents relating to the Technology. 

5.3. Mutual Assistance. CPDC and Fusion shall each provide to each other’s authorized attorneys, agents, or representatives reasonable assistance as
necessary to exploit the rights under Section 5 to file, prosecute, maintain and enforce patent applications and patents. CPDC and Fusion shall use their best efforts to have signed all legal documents necessary to file, prosecute, maintain,
and enforce patent applications or patents. 
 5.4. Infringement. 

(a) Each Party shall promptly report (the “Reporting Party”) in writing to the other Party (the “Receiving
Party”) during the term of this Agreement any: (i) known infringement or suspected infringement of any of the CPDC Patent Rights in the Field; or (ii) infringement, unauthorized use or misappropriation of the CPDC Technology
Rights in the Field by a third party of which the Reporting Party becomes aware, and shall provide such Receiving Party with all available evidence supporting said infringement, suspected infringement or unauthorized use or misappropriation. Within
[***] after Fusion becomes, or is made, aware of any of the foregoing, it shall decide whether or not to initiate an infringement or other appropriate suit and shall advise the CPDC of its decision in writing. The inability of CPDC to decide on a
course of action within such [***] period shall for purposes of this Agreement be deemed a decision not to initiate an infringement or other appropriate suit. 

 (b) Within [***] after Fusion becomes, or is made, aware of any infringement, suspected
infringement or unauthorized use or misappropriation by a third party in the Field, as provided in paragraph (a) above, and provided that Fusion shall have advised (or have been deemed to have advised) the CPDC of its decision to file suit
within the [***] period provided in paragraph (a) above, Fusion shall have the right to initiate an infringement or other appropriate suit anywhere in the world against such third party. Fusion shall provide the CPDC with an opportunity to make
suggestions and comments regarding such suit and shall promptly notify the CPDC of the commencement of such suit. Fusion shall keep the CPDC promptly informed of, and shall from time to time consult with the CPDC regarding, the status of any such
suit and shall provide the CPDC with copies of all documents filed in, and all written communications relating to, such suit. 
 (c) Fusion
shall select counsel for any suit referred to in paragraph (b) above. Fusion shall, except as provided below, pay all expenses of the suit, including, without limitation, legal fees and court costs. The CPDC, in its sole discretion, may elect,
within [***] after the receipt by the CPDC from Fusion of notice of the commencement of such litigation, to contribute to the costs incurred by Fusion in connection with such litigation in an amount not to exceed [***] of such costs. Any damages,
settlement fees or other consideration for past infringement received as a result of such litigation shall be shared by CPDC and Fusion [***]. If necessary the CPDC shall join as a party to the suit but shall be under no obligation to participate
except to the extent that such participation is required as the result of being a named party to the suit. The CPDC shall have the right to participate and be represented in any suit by its own counsel at its own expense. Fusion shall not settle any
such suit involving rights of the CPDC (including without limitation its licensed rights under this Agreement) without obtaining the prior written consent of the CPDC, which consent shall not be unreasonably withheld. 

(d) In the event that Fusion does not inform the CPDC of its intent to initiate an infringement or other appropriate suit within the [***]
period provided in paragraph (a) above, or does not initiate such an infringement or other appropriate action within the [***] period provided in paragraph (b) above or does not initiate such an infringement or other appropriate action in
a jurisdiction of interest to the CPDC, the CPDC shall have the right, at its expense, to initiate an infringement or other appropriate suit. In exercising its rights pursuant to this paragraph (d), the CPDC shall have the sole and exclusive right
to select counsel and shall pay all expenses of the suit including without limitation ’legal’ fees and court costs. If necessary, Fusion shall join as a party to the suit and shall participate only to the extent that such participation is
required as a result of its being a named party to the suit or being the holder of any patent at issue or being the owner of any CPDC Technology Rights at issue. At the CPDC’s request, Fusion shall offer reasonable assistance to the CPDC in
connection therewith at no charge to the CPDC except for reimbursement of reasonable out-of-pocket expenses incurred in rendering such assistance. Without limiting the
generality of the preceding sentence, Fusion shall cooperate fully in order to enable the CPDC to institute any action hereunder. Fusion shall have the right to be represented in any such suit by its own counsel at its own expense. 

 5.5. Claimed Infringement. 

(a) In the event that a third party at any time provides written notice of a claim to, or brings an action, suit or proceeding against, either
Party or any of their respective affiliates or sublicensees, claiming infringement of its patent rights or copyrights or unauthorized use or misappropriation of its technology, based upon an assertion or claim arising out of the development,
manufacture, use or sale of Licensed Products, such Party shall promptly notify the other Party of the claim or the commencement of such action, suit or proceeding, enclosing a copy of the claim and/or all papers served. At the request of CPDC,
Fusion shall provide to Fusion advice regarding the technical merits of any such claim. 
 (b) Fusion shall defend CPDC at Fusion’s
cost and expense, and will indemnify and hold harmless CPDC, from and against any and all claims, losses, costs, damages, fees and expenses arising out of or in connection with (i) the infringement or alleged infringement by a Licensed Product
of any United States or foreign patent, copyright, trade secret or other intellectual property right of any third party and any settlements relating thereto, and (ii) product liability and manufacturer’s liability claims arising from the
sale and use of Licensed Products; provided that Fusion shall have sole control and authority with respect to the defense or settlement of any such claim or action and CPDC shall cooperate fully with Fusion in the defense or settlement of any such
claim or action. In the event that any Licensed Product becomes, or in CPDC‘s opinion is likely to become, the subject of a claim of infringement of any United States or foreign patent, copyright, trade secret or other intellectual property
right of any third party, CPDC may at its option either secure for Fusion the right to continue using the CPDC Patent Rights, CPDC Technology Rights and the Licensed Product, replace or modify the CPDC Patent Rights, CPDC Technology Rights and the
Licensed Product to make it non-infringing without impairment of function or if neither of the foregoing alternatives is reasonably available to CPDC, terminate Fusion’s rights and licenses to the
Licensed Product under this Agreement. 
 (c) The provisions of Section 5.5(b) notwithstanding, CPDC shall not have any liability under
Section 5.5(b) to the extent that any infringement or claim results from: (i) use of the Licensed Product in combination with some other product or pharmaceutical formulation not supplied by CPDC where the Licensed Product itself would not
be infringing; or (ii) modifications of the Licensed Product where the Licensed Product, if not modified by or for Fusion, would not be infringing. In addition, in no event shall CPDC be liable to, alone or in contribution, or required to
indemnify, Fusion or any of its shareholders, directors, officers or affiliates for any consequential, incidental, indirect, special, exemplary or punitive damages (including loss of actual or anticipated profits, loss by reason of non-operation; or loss of use or productivity), regardless of whether such liability arises out of breach of contract, statute, guarantee or warranty, tort, product liability, indemnity, contribution, strict
liability or any other legal theory. 
 (d) This Section 5.5 states the entire responsibility of CPDC under this Agreement in the case
of any claimed infringement or violation of any third party’s rights or unauthorized use or misappropriation of any third party’s technology. 

6. Confidential Information: 
 6.1. Treatment of
Confidential Information. The Parties have previously signed a Mutual Non-Disclosure Agreement on [***] governing the exchange and care of Confidential Information between the Parties, and, for the avoidance
of doubt, the [***] agreement shall have precedence over the treatment of all Confidential Information. Each Party hereto shall maintain the Confidential Information of the other party in confidence, and shall not directly or indirectly

 
disclose, divulge or otherwise communicate such Confidential Information to others, or use it for any purpose, except pursuant to, and in order to carry out, the terms and objectives of this
Agreement, and hereby agrees to exercise every reasonable precaution to prevent and restrain the unauthorized disclosure (except to the extent required to use or distribute Licensed Products) of such Confidential Information by any of its directors,
officers, employees, consultants, subcontractors, sublicensees, or agents. 
 6.2. Release from Restrictions. The provisions of Section 6.1 shall not
apply to any Confidential Information disclosed hereunder which: 
 (a) was known or used by the receiving Party prior to its date of
disclosure to the receiving Party, as evidenced by the prior written records of the receiving Party; 
 (b) either before or after the date
of the disclosure to the receiving Party is lawfully disclosed to the receiving Party by sources other than the disclosing Party rightfully in possession of the Confidential Information and not under an obligation of confidentiality; 

(c) either before or after the date of the disclosure to the receiving Party becomes published or generally known to the public, other than
through the sale of Licensed Products in the ordinary course, through no fault or omission on the part of the receiving Party or an affiliated party; or 

(d) is independently developed by or for the receiving Party without reference to or reliance upon the Confidential Information. 

In addition, a receiving Party may disclose or communicate Confidential Information if required to be disclosed by the receiving Party to
comply with applicable laws, to defend or prosecute litigation or to comply with governmental regulations, provided that the receiving Party provides prior written notice of such disclosure to the other Party and takes reasonable and lawful actions
to avoid and/or minimize the degree of such disclosure. 
 7. Termination: 

7.1. Term. This Agreement shall remain in effect until terminated in accordance with the provisions of this Article 7. 

7.2. Termination for Breach. Fusion shall be entitled to terminate this Agreement by written notice to CPDC in the event that CPDC shall be in default of any
of its obligations hereunder and shall fail to remedy any such default within [***] after notice thereof by Fusion. CPDC shall be entitled to terminate this Agreement by written notice to Fusion in the event that Fusion shall be in default of any of
its obligations hereunder and shall fail to remedy any such default within [***] after notice thereof by CPDC. Upon termination of this Agreement pursuant to this Section 7.2, no Party shall be relieved of any obligations incurred prior to such
termination. 
 7.3. Survival of Obligations; Return of Confidential Information. Notwithstanding any termination of this Agreement, the obligations of the
Parties with respect to the protection and nondisclosure of Confidential Information (Article 6) as well as any other provisions which by their nature are intended to survive any such termination, shall survive and continue to be enforceable. Upon
any termination of this Agreement pursuant to Section 7.2, each Party shall promptly return to each other Party all written Confidential Information, and all copies thereof, of such other Party. 

 8. Miscellaneous: 

8.1. Governing Law. This Agreement shall be governed by and interpreted in accordance with the laws of the Province of Ontario and the federal laws of Canada
applicable in the Province of Ontario. 
 8.2. Waiver. The waiver by any Party of a breach or a default of any provision of this Agreement by any other
Party shall not be construed as a waiver of any succeeding breach of the same or any other provision, nor shall any delay or omission on the part of a Party to exercise or avail itself of any right, power or privilege that it has or may have
hereunder operate as a waiver of any right, power or privilege by such Party. 
 8.3. Notices. Any notice or other communication in connection with this
Agreement must be in writing and if by mail, by registered or certified mail, return receipt requested, and shall be effective when delivered to the addressee at the address listed below or such other address as the addressee shall have specified in
a notice actually received by the addressor. 
  

			
	If to Fusion Pharmaceuticals:	  	If to CPDC:
		
	 [***]
	  	 [***] 

		
	Attn: [***]	  	Attn: [***]

 8.4. No Agency. Nothing herein shall be deemed to constitute Fusion, on the one hand, or CPDC, on the other hand, as the agent
or representative of the other, or as joint venturers or partners for any purpose. Neither Fusion, on the one hand, nor CPDC, on the other hand, shall be responsible for the acts or omissions of the other. No Party will have authority to speak for,
represent or obligate the other Party in any way without prior written authority from such other Party. 
 8.5. Entire Agreement. This Agreement and the
Schedules hereto (which Schedules are deemed to be a part of this Agreement for all purposes) contain the full understanding of the Parties with respect to the subject matter hereof and supersede all prior understandings and writings relating
thereto. No waiver, alteration or modification of any of the provisions hereof shall be binding unless made in writing and signed by the Parties. 
 8.6.
Headings. The headings contained in this Agreement are for convenience of reference only and shall not be considered in construing this Agreement. 
 8.7.
Severability. In the event that any provision of this Agreement is held by a court of competent jurisdiction to be unenforceable because it is invalid or in conflict with any law of any relevant jurisdiction, the validity of the remaining provisions
shall not be affected. 

 8.8. Assignment. No Party to this Agreement may assign its rights or obligations hereunder without the prior
written consent of each other Party; provided, however, that each Party may assign its rights and obligations hereunder without the prior written consent of the other Party in connection with the sale of all or substantially all of the business or
assets of the assigning Party relating to the development, manufacture, use, or sale of Licensed Products. 
 8.9. Successors and Assigns. This Agreement
shall be binding upon and inure to the benefit of the Parties hereto and their successors and permitted assigns. 
 8.10. Counterparts. This Agreement may
be executed in any number of counterparts, each of which shall be deemed an original but all of such together shall constitute one and the same instrument. 

8.11. Force Majeure. No Party to this Agreement shall be responsible to the other Party for nonperformance or delay in performance of the terms or conditions
of this Agreement due to acts of God, acts of governments, war, riots, strikes, accidents in transportation, or other causes beyond the reasonable control of such Party. 

[The remainder of this page has been intentionally left blank.] 

 IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to be executed in their names by their
properly and duly authorized officers or representatives as of the date first above written. 
  

			
	FUSION PHARMACEUTICALS INC.

 
			
		
	By:	 	/s/ John Valliant
	Name:	 	John Valliant
	Title:	 	President and Secretary

  

			
	 CENTRE FOR PROBE

DEVELOPMENT AND COMMERCIALIZATION

 
			
		
	By:	 	/s/ John Valliant
	Name:	 	John Valliant
	Title:	 	Chief Executive officer

 
			
		
	By:	 	 /s/ Robert Sutherland

	Name:	 	Robert Sutherland
	Title:	 	Director

 Signature Page to CPDC License Agreement 

 Schedule A 

[***]

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