Exhibit 99.4

Consent of Qualified Person

In accordance with the requirements of Regulation S-K 1300 Modernization of Property Disclosures §229.1302(b)(4)(iv)
 


Report Description
 
Report titled “[Titan Project - Technical Report Summary on Feasibility Study]”
(“TRS”)
 
IperionX Limited
(“Company”)
 
Titan Project
(“Deposit”)
 
On or about June 4, 2026
(“Date of Report”)

Statement

I, Justin Douthat, an authorized representative of Marshall Miller & Associates, Inc. confirm that:

1)
In connection with any filings under the U.S. Securities Act of 1933 (as amended, the “Securities Act”) or U.S. Exchange Act of 1934 (as amended, the “Exchange Act”) report and any amendment, supplement, or exhibit thereto, Marshall Miller & Associates, Inc. consents to:


a)
The filing and use of the Technical Report Summary titled “[Titan Project - Technical Report Summary on Feasibility Study]” (the “TRS”) with an effective date on or about June 4, 2026;


b)
The use of Marshall Miller & Associates, Inc.’s name in connection with the TRS, including identification of such firm’s status as an expert or Qualified Person (as defined in Subpart 1300 of Regulation S-K promulgated by the Securities and Exchange Commission); and


c)
The use of the information derived, summarized, quoted or reference from the TRS, or portions thereof, that were prepared by Marshall Miller & Associates, Inc., that Marshall Miller & Associates, Inc. supervised the preparation of and/or that was reviewed or approved by Marshall Miller & Associates, Inc., that is reported or incorporated by reference into a Securities Act filing, including any registration statement or post-effective amendment filed pursuant to Rule 462(b) or Rule 462(e) under the Securities Act.

2)
I have read and understood the requirements of the Regulation S-K 1300 Modernization of Property Disclosures.


3)
Marshall Miller & Associates, Inc. meets the definition of a “Qualified Person” as defined by Regulation S-K, and to the activity for which our firm is accepting responsibility.

4)
I have reviewed the TRS to which this Consent Statement applies.

5)
I am an authorized representative and an employee of Marshall Miller & Associates, Inc. and have been engaged by IperionX to prepare the documentation for the Titan Project on which the TRS is based, for the period ending on or about June 4, 2026.

I verify that the TRS is based on and fairly and accurately reflects in the form and context in which it appears, the information in my supporting documentation relating to:

Section 1 - Executive Summary
Section 2 - Introduction
Section 3 - Property Description
Section 4 - Accessibility, Climate, Local Resources, Infrastructure and Physiography
Section 5 - History
Section 6 - Geological Setting, Mineralization, and Deposit
Section 7 - Exploration
Section 8 - Sample Preparation, Analyses, and Security
Section 9 - Data Verification
Section 11 - Mineral Resource Estimates
Section 12 - Mineral Reserve Estimates
Section 13 - Mining Methods
Section 15 - Infrastructure
Section 16 - Market Studies
Section 17 - Environmental Studies, Permitting, and Plans, Negotiations, or Agreements with Local individuals or Groups
Section 18 - Capital and Operating Costs
Section 20 - Adjacent Properties
Section 21 - Other Relevant Data and Information
Section 22 - Interpretation and Conclusions
Section 23 - Recommendations
Section 24 - References
Section 25 - Reliance on Information Provided by the Registrant
 
CONSENT

I consent to the filing of the TRS by IperionX Limited (“Reporting Company”) and hereby consent to the foregoing in, accept responsibility for:

The Reporting Company’s Reports filed under the Securities Act and Exchange Act for the next 12 months;
The Reporting Company’s Investor Presentations for the next 12 months;
The Reporting Company’s future press releases for the next 12 months, until such time that the TRS is superseded or this consent is otherwise withdrawn;
The Reporting Company’s exhibition booths at any conferences for the next 12 months; and


Any other releases, presentations and promotional material made by the Reporting Company during the next 12 months, until such time that the mineral resource estimate and mineral reserve estimate included in the TRS is superseded or this consent is otherwise withdrawn.


/s/ Justin Douthat


June 4, 2026

Signature of Authorized Representative of the Third-Party Firm Acting as

Date

Qualified Person




 

Steven A. Keim

/s/ Steven A. Keim


Blacksburg, VA (USA)

Signature of Witness


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