Exhibit 4.26


 





DESCRIPTION
OF Securities


 


Common Shares


 


The authorized capital
of NioCorp Developments Ltd., a British Columbia corporation (the “Company”), consists of an unlimited number of Common
Shares without par value. The holders of Common Shares are entitled to receive notice of and attend all meetings of shareholders,
with each Common Share held entitling the holder to one vote on any resolution to be passed at such shareholder meetings. The holders
of Common Shares are entitled to dividends if, as and when declared by the Company’s Board of Directors. The Common Shares
are entitled, upon liquidation, dissolution, or winding up of the Company, to receive the remaining assets of the Company available
for distribution to shareholders. There are no pre-emptive, conversion, or redemption rights attached to the Common Shares.


 


Exchange Controls


 


There are no governmental
laws, decrees, or regulations in Canada that restrict the export or import of capital, including foreign exchange controls, or
that affect the remittance of dividends, interest or other payments to non-resident holders of the securities of the Company, other
than Canadian withholding tax. See “Certain Canadian Federal Income Tax Considerations for U.S. Residents” below.


 


Certain Canadian Federal Income Tax Considerations for U.S.
Residents


 


The following summarizes
certain Canadian federal income tax consequences generally applicable under the Income Tax Act (Canada) and the
regulations enacted thereunder (collectively, the “Canadian Tax Act”) and the Canada-United States Income Tax
Convention (1980) (the “Convention”) to the holding and disposition of Common Shares.


 


Comment is restricted
to holders of Common Shares, each of whom, at all material times for the purposes of the Canadian Tax Act and the Convention, (i)
is resident solely in the United States, (ii) is a “qualifying person” under and entitled to the benefits of the Convention,
(iii) holds all Common Shares as capital property, (iii) holds no Common Shares that are “taxable Canadian property”
(as defined in the Canadian Tax Act) of the holder, (iv) deals at arm’s length with and is not affiliated with the Company,
(v) does not and is not deemed to use or hold any Common Shares in a business carried on in Canada, and (vi) is not an insurer
that carries on business in Canada and elsewhere (each such holder, a “U.S. Resident Holder”).


 


Certain U.S.-resident
entities that are fiscally transparent for United States federal income tax purposes (including limited liability companies) may
not in all circumstances be regarded by the Canada Revenue Agency (the “CRA”) as entitled to the benefits of the Convention.
Members of or holders of an interest in such an entity that holds Common Shares should consult their own tax advisers regarding
the extent, if any, to which the CRA will extend the benefits of the Convention to the entity in respect of its Common Shares.


 


Generally, a holder’s
Common Shares will be considered to be capital property of the holder provided that the holder is not a trader or dealer in securities,
did not acquire, hold, or dispose of the Common Shares in one or more transactions considered to be an adventure or concern in
the nature of trade (i.e., speculation), and does not hold the Common Shares in the course of carrying on a business
of trading or dealing in securities.


 


Generally, a holder’s
Common Shares will not constitute “taxable Canadian property” of the holder at a particular time at which the Common
Shares are listed on a “designated stock exchange” (which currently includes the Toronto Stock Exchange (the “TSX”))
unless both of the following conditions are true:


 


		(i)	at any time during the 60-month period that ends at the particular time, 25% or more of the issued shares of any class of the
capital stock of the Company were owned by or belonged to one or any combination of:







		(A)	the holder;







		(B)	persons with whom the holder did not deal at arm’s length; and







		(C)	partnerships in which the holder or a person referred to in clause (B) holds a membership interest directly or indirectly through
one or more partnerships; and







		(ii)	at any time during the 60-month period that ends at the particular time, more than 50% of the fair market value of the Common
Shares was derived directly or indirectly from, one or any combination of, real or immovable property situated in Canada, “Canadian
resource properties” (as defined in the Canadian Tax Act), “timber resource properties” (as defined in the Canadian
Tax Act), or options in respect of, or interests in any of the foregoing, whether or not the property exists.



 






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This summary is based
on the current provisions of the Canadian Tax Act and the Convention in effect on the date hereof, all specific proposals to amend
the Canadian Tax Act and Convention publicly announced by or on behalf of the Minister of Finance (Canada) on or before the date
hereof, and the current published administrative and assessing policies of the CRA. It is assumed that all such amendments will
be enacted as currently proposed, and that there will be no other material change to any applicable law or administrative or assessing
practice, although no assurance can be given in these respects. Except as otherwise expressly provided, this summary does not take
into account any provincial, territorial, or foreign tax considerations, which may differ materially from those set out herein.


 


This summary is of a general nature only,
is not exhaustive of all possible Canadian federal income tax considerations, and is not intended to be and should not be construed
as legal or tax advice to any particular U.S. Resident Holder. U.S. Resident Holders are urged to consult their own tax advisers
for advice with respect to their particular circumstances. The discussion below is qualified accordingly.


 


A U.S. Resident Holder
who disposes or is deemed to dispose of one or more Common Shares generally should not thereby incur any liability for Canadian
federal income tax in respect of any capital gain arising as a consequence of the disposition.


 


A U.S. Resident Holder
to whom the Company pays or is deemed to pay a dividend on the holder’s Common Shares will be subject to Canadian withholding
tax, and the Company will be required to withhold the tax from the dividend and remit it to the CRA for the holder’s account.
The rate of withholding tax under the Canadian Tax Act is 25% of the gross amount of the dividend, but should generally be reduced
under the Convention to 15% (or, if the U.S. Resident Holder is a company which is the beneficial owner of at least 10% of the
voting stock of the Company, 5%) of the gross amount of the dividend. For this purpose, a company that is a resident of the United
States for purposes of the Canadian Tax Act and the Convention and is entitled to the benefits of the Convention shall be considered
to own the voting stock of the Company owned by an entity that is considered fiscally transparent under the laws of the United
States and that it is not a resident of Canada, in proportion to such company’s ownership interest in that entity.


 


Warrants


 


From time to time, the
Company has outstanding Common Share purchase warrants, with each Common Share purchase warrant exercisable for one Common Share.
The exercise price per Common Share and the number of Common Shares issuable upon exercise of the Common Share purchase warrants
is subject to adjustment upon the occurrence of certain events, including, but not limited to, the following:


 


		·	the subdivision or re-division of the Company’s outstanding Common Shares into a greater number of Common Shares;







		·	the reduction, combination or consolidation of the Company’s outstanding Common Shares into a lesser number of Common
Shares;







		·	the issuance of Common Shares or securities exchangeable for, or convertible into, Common Shares to all or substantially all
of the holders of Common Shares by way of stock dividend or other distribution (other than a distribution of Common Shares upon
the exercise of Common Share purchase warrants or any outstanding options);







		·	the reorganization of the Company or the consolidation or merger or amalgamation of the Company with or into another body corporate;
and







		·	a reclassification or other similar change to the Company’s outstanding Common Shares.



 


The Company will issue
the Common Shares issuable upon exercise of Common Share purchase warrants within five business days following its receipt of notice
of exercise and payment of the exercise price, subject to surrender of the Common Share purchase warrants. Prior to the exercise
of any Common Share purchase warrants, holders of the Common Share purchase warrants will not have any of the rights of holders
of the Common Shares issuable upon exercise, including the right to vote or to receive any payments of dividends on the Common
Shares issuable upon exercise.


 






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The Convertible Security


 


On June 27, 2018, the
Company entered into a convertible security funding agreement (the “Lind Agreement”) with Lind Asset Management IV
LLC (“Lind”). Pursuant to the Lind Agreement, Lind agreed to advance to the Company $1.0 million (subject to additional
set off) in consideration of which the Company agreed to issue to Lind a convertible security (the “Convertible Security”)
with a face value of $1.2 million (representing $1.0 million in funding plus an implied 10% interest rate per annum for the term
of the Convertible Security).


 


The Convertible Security
has a term of (i) 24 months or (ii) 30 calendar days after the date on which the face value of the Convertible Security is nil
due to such amount having been fully converted and/or fully repaid (including with any applicable premium) in accordance with the
terms of the Lind Agreement, whichever is earlier. The Convertible Security constitutes the direct, general and unconditional obligation
of the Company and ranks senior to all of the Company’s other indebtedness.


 


Pursuant to the Lind Agreement,
Lind is entitled to convert the Convertible Security into Common Shares in monthly installments over its term at a price per Common
Share equal to 85% of the volume-weighted average price of the Common Shares on the TSX for the five trading days immediately preceding
to the date on which Lind provides notice to the Company of its election to convert. Subject to certain exceptions, the Lind Agreement
contains restrictions on how much of the Convertible Security may be converted in any particular month. The Lind Agreement also
provides the Company with the option to buy back the remaining face amount of the Convertible Security in cash at any time; provided
that, if the Company exercises such option, Lind will have the option to convert up to 30% of the remaining face amount into Common
Shares at the price described above. In addition, Lind is entitled to accelerate its conversion right to the full amount of the
face value of the Convertible Security or demand repayment thereof in cash upon the occurrence of an event of default and other
designated events described in the Lind Agreement.


 


The foregoing is intended
as a description of the material terms of the Lind Agreement only, and is qualified in its entirety by reference to the full text
of the Lind Agreement, a copy of which is filed as an exhibit to the Company’s Annual Report on Form 10-K to which this Description
of Securities is filed as an exhibit.







 






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