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- S-3 Shelf registration
- 4.5 Joinder to Sponsor Support Agreement, Dated As of March 17, 2023, by and Among Niocorp Developments LTD. and Each of the Holders Party
- 4.9 Joinder to Exchange Agreement, Dated As of March 17, 2023, by and Among Niocorp Developments LTD., Elk Creek Resources Corp (F/k/a GX Acquisition Corp. Ii) and Each of the Holders Party
- 5.1 Opinion of Blake, Cassels & Graydon LLP
- 5.2 Opinion of Jones Day
- 23.3 Consent of Bdo USA, LLP
- 23.4 Consent of Marcum LLP
- 23.5 Consent of Dahrouge Geological Consulting USA LTD.
- 23.6 Consent of Understood Mineral Resources LTD.
- 23.7 Consent of Optimize Group Inc.
- 23.8 Consent of Tetra Tech
- 23.9 Consent of Adrian Brown Consultants Inc.
- 23.10 Consent of Magemi Mining Inc.
- 23.11 Consent of L3 Process Development
- 23.12 Consent of Olsson
- 23.13 Consent of A2GC
- 23.14 Consent of Metallurgy Concept Solutions
- 23.15 Consent of Scott Honan, M.SC., Sme-rm, Niocorp
- 23.16 Consent of Everett Bird, P.e., Cementation
- 23.17 Consent of Matt Hales, P.e., Cementation
- 23.18 Consent of Mahmood Khwaja, P.e., CDM Smith
- 23.19 Consent of Martin Lepage, P.eng., Cementation
- 23.20 Consent of Wynand Marx, M.eng., Bbe Consulting
- EX-FILING FEES Filing Fee Table
- 31 Oct 23 EFFECT Notice of effectiveness
- 30 Oct 23 424B3 Prospectus supplement
- 13 Oct 23 POS AM Prospectus update (post-effective amendment)
- 22 Aug 23 POS AM Prospectus update (post-effective amendment)
- 10 May 23 EFFECT Notice of effectiveness
- 9 May 23 424B3 Prospectus supplement
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14 Apr 23 S-3 Shelf registration
Exhibit 23.4
Independent Registered Public Accounting Firm’s Consent
We consent to the incorporation by reference in this Registration Statement of NioCorp Developments Ltd. on Form S-3 of our report dated February 23, 2023 which includes an explanatory paragraph as to GX Acquisition Corp. II’s ability to continue as a going concern with respect to our audits of the financial statements of GX Acquisition Corp. II as of December 31, 2022 and 2021 and for the years ended December 31, 2022 and 2021 appearing in the Current Report on Form 8-K of NioCorp Developments Ltd. filed with the Securities and Exchange Commission on March 1, 2023. We were dismissed as auditors on March 17, 2023 and, accordingly, we have not performed any audit or review procedures with respect to any financial statements incorporated by reference in such Prospectus for the periods after the date of our dismissal.
We also consent to the reference to our firm under the heading “Experts” in the Prospectus, which is part of this Registration Statement.
/s/ Marcum llp
New York, NY
April 14, 2023