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Exhibit 10.11

TENTH AMENDMENT TO OPTION AGREEMENT
 
This amendment (“Tenth Amendment”) is being entered into by and between Advanced
Inhalation Therapies Limited (“AIT”) and Pulmonox Technologies Corporation
(“Pulmonox”), for the purpose of amending the Option Agreement originally
entered by AIT and Pulmonox on 31st August 2015 (the “Option Agreement”).

For valid consideration, the sufficiency of which is being acknowledged by AIT
and Pulmonox, it is agreed to extend the Option Period (Section 2.2 of the
Option Agreement) by twelve (12) months, such that Section 2.2 of the Option
Agreement shall be replaced by the following:

2.2          The Option shall be exercisable by a written notice given by the
Company to Seller to that effect not later than within eighteen (18) months as
of the Effective Date (the “Exercise Notice” and the “Option Period”,
respectively).
 
IN WITNESS WHEREOF, the parties hereto have caused this Tenth Amendment to be
executed by their duly authorized representatives as of the dates hereof.
 
ADVANCED INHALATION THERAPIES LIMITED

PULMONOX TECHNOLOGIES CORPORATION
 
_______________________________________
(signature)
 
_______________________________________
(signature)
 
Name:
 
______________________________________
 
Name:
 
______________________________________
 
Title:
 
______________________________________
 
Title:
 
______________________________________
 
Date:
 
December 31, 2016
______________________________________
 
Date:
 
December 31, 2016
______________________________________

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