Author: 5E Advanced Materials, Inc.

5E Advanced Materials Launches Ferroboron Trial Program to Support U.S. Mine-to-Magnet Supply Chain
Ceramics and High-Temperature Processing Expert Dr. William M. Carty, Ph.D., Engaged to Lead Ferroboron Trial

Targets Supplying Magnet-Grade Ferroboron to Potential Customers for Initial Qualification in First Half of 2026

HESPERIA, CA / ACCESS Newswire / February 25, 2026 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (NASDAQ:FEAM)(ASX:5EA), a company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, today announced it has commenced trials to evaluate production of magnet-grade ferroboron. As part of this initiative, the Company has engaged Dr. William M. Carty, Ph.D., to lead the ferroboron trials and support its efforts to qualify the material with potential customers.

Ferroboron is a ferrous iron-boron alloy used to introduce boron into specialty steel, and it can also serve as a boron source in the production of neodymium-iron-boron (NdFeB) permanent magnet alloys. The United States does not currently produce ferroboron domestically, creating a critical import dependency within specialty steel and permanent magnet supply chains.

5E has identified two redox-based (reduction-oxidation) process routes to trial ferroboron production in a laboratory environment. The program leverages 5E’s planned domestic boric acid production as a secure upstream feedstock, reinforcing the Company’s downstream derivative strategy. The Company intends to provide initial samples meeting specifications to prospective end users across specialty steel and NdFeB permanent magnet supply chains for evaluation and initial qualification in the first half of 2026. Program deliverables are expected to include product chemistry, impurity profiling, and particle size distribution, as well as preliminary mass and energy balances designed to inform early-stage process design and initial economic assessment.

Key Takeaways:
- Dr. Carty brings deep expertise in ceramic powder processing and forming, high-temperature processes, powder characterization, and statistical analysis.
- His experience includes high-temperature compatibility of oxides, carbides, nitrides, and borides, and developing robust high-temperature solutions for high-performance materials.
- Two redox-based technology pathways have been selected for laboratory evaluation; the Company is targeting delivery of initial samples to prospective end users across specialty steel and permanent magnet supply chains.
- Expected deliverables include material and energy balances to support early-stage processing and economic evaluation, leveraging 5E’s planned domestic boric acid production.
“This program represents the strategic next step toward establishing a secure, domestic supply chain of ferroboron,” said Paul Weibel, Chief Executive Officer. “We are pleased to engage Dr. William M. Carty in leading this initiative, bringing his expertise to support the development and evaluation of initial material for potential customers. By generating critical technical data and advancing early customer qualifications, we are positioning 5E to accelerate scale-up and capture strategic opportunities in the U.S. specialty steel and permanent magnet supply chains.”

NdFeB permanent magnets are essential components in high-efficiency electric motors, wind turbines, industrial automation, and defense systems. Global demand for NdFeB magnets is expected to grow significantly over the next decade, driven by electrification, renewable energy expansion, and advanced defense systems. Global magnet supply chains remain highly concentrated, and recent export controls and geopolitical friction have reinforced investors and customers to focus on resilient, domestic magnet supply chains. This initiative reflects 5E’s strategy to expand beyond first derivative borates into higher-value performance materials, which may enhance long-term revenue mix, strategic relevance, and customer integration.

Professional Notes: Dr. William M. Carty, Ph.D.

Dr. Carty is serving as the Company’s engaged expert in connection with the Company’s ferroboron trial program. Dr. Carty is Professor Emeritus of Ceramic Engineering at Alfred University, where he taught from 1993 to 2020. He relocated to New Hampshire in 2022 and currently serves as Chief Technology Officer for Materials Research Furnaces in Allenstown, New Hampshire. He also consults across the ceramic industry, with specialization in powder processing and forming (traditional and advanced ceramics and composites), pyrolysis and sintering processes, microstructure evolution, high-temperature chemical reactions, mechanical behavior of ceramics and composites, powder characterization, and statistical analysis. His research interests include high-temperature compatibility of oxides, carbides, nitrides, and borides, and the development of robust high-temperature solutions for high-performance materials.

About 5E Advanced Materials, Inc.

5E Advanced Materials, Inc. (NASDAQ:FEAM) (ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron materials, complemented by calcium-based co-products, and potentially other by-products such as lithium carbonate. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, energy independence, food, national security, and the defense sector. The Company believes factors such as government regulation and incentives focused on domestic manufacturing and supply chains and capital investments across industries will drive demand for end-use applications like solar and wind energy infrastructure, neodymium-ferro-boron magnets, defense applications, lithium-ion batteries, and other critical material applications. The business is based on the Company’s large domestic boron resource, which is located in Southern California and designated as Critical Infrastructure by the U.S. Department of Homeland Security, and boron was included on the U.S. Government’s 2025 List of Critical Minerals.

Forward-Looking Statements

Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the Company’s ferroboron trial program; the timing and results of the ferroboron trials; the ability to produce ferroboron at acceptable cost, scale and quality; development plans; production capabilities; commercialization strategy; ability to negotiate or obtain offtake agreements; customer qualification processes for any of its proposed products, and success thereof; market demand for boron, lithium and ferroboron; the potential applications of its products across energy, defense, agriculture and industrial markets; and ability to access and secure any government-based financing. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, statements regarding the Company’s ferroboron trial program; the timing and results of the ferroboron trials; the ability to produce ferroboron at acceptable cost, scale and quality; development plans; production capabilities; commercialization strategy; ability to negotiate or obtain offtake agreements; customer qualification processes for any of its proposed products, and success thereof; market demand for boron, lithium and ferroboron; the potential applications of its products across energy, defense, and industrial markets; and ability to access and secure any government-based financing. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K and its other reports filed with the SEC. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations
Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations
Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire
February 25, 2026
5E Advanced Materials to Host Fiscal Q2 Call
HESPERIA, CA / ACCESS Newswire / February 10, 2026 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (Nasdaq:FEAM)(ASX:5EA), a company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, today announced it will host its Q2 call on Tuesday, February 17, 2026 at 5:00 p.m. Eastern Time.

The webcast and teleconference will provide an update on the Company’s execution across federal financing engagement, customer validation and commercial discussions, and engineering and pre-FID workstreams, as 5E advances the Fort Cady Project toward a potential Final Investment Decision.

Event Details
- Event: 5E Advanced Materials Q2 Call
- Date: Tuesday, February 17, 2026
- Time: 5:00 p.m. Eastern Time
- Format: Webcast (Audio Only) and Teleconference
- Duration: 60 minutes
Live Webcast: Register HERE

Dial-In Numbers:
- Toll Free: +1 (888) 506-0062
- International: +1 (973) 528-0011
- Participant Access Code: 249408
Teleconference Replay (Available until March 3, 2026):
- Toll Free: +1 (877) 481-4010
- International: +1 (919) 882-2331
- Replay Passcode: 53637
About 5E Advanced Materials, Inc.

5E Advanced Materials, Inc. (Nasdaq: FEAM) (ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron materials, complemented by calcium-based co-products, and potentially other by-products such as lithium carbonate. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, energy independence, food, national security, and the defense sector. The Company believes factors such as government regulation and incentives focused on domestic manufacturing and supply chains and capital investments across industries will drive demand for end-use applications like solar and wind energy infrastructure, neodymium-ferro-boron magnets, defense applications, lithium-ion batteries, and other critical material applications. The business is based on the Company’s large domestic boron resource, which is located in Southern California and designated as Critical Infrastructure by the U.S. Department of Homeland Security, and boron was included on the U.S. Government’s 2025 Critical Minerals List.

Forward Looking Statements

Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes and success thereof, market demand for boron and lithium, the potential applications of its products across energy, defense, agriculture and industrial markets, and ability to access and secure any government-based financing. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes, market demand for boron and lithium, and potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K and its other reports filed with the SEC. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations
Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations
Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire
February 24, 2026
5E Advanced Materials Targets Ferroboron to Support U.S. Mine-to-Magnet Supply Chain
5E Seeks to Collaborate with U.S. Magnet Producer to Solve Ferroboron Supply Gap

U.S. Supply Chains for Ferroboron are Import-Reliant with Significant Supply Chain Risk Tied to Chinese Manufacturing

HESPERIA, CALIFORNIA / ACCESS Newswire / February 4, 2026 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (Nasdaq:FEAM)(ASX:5EA), a company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, today announced that it targets future production of Ferroboron and the establishment of a secure, domestic supply chain utilizing upstream feedstock of boric acid produced from its Fort Cady site in California. Ferroboron is an iron-boron alloy used as a boron additive in specialty steel and as a boron source for neodymium-iron-boron (NdFeB) magnet alloy feedstock. NdFeB permanent magnets are essential components in high-efficiency electric motors, wind turbines, industrial automation and defense systems. Recent export controls and geopolitical friction have reinforced investors’ and customers’ focus on domestic magnet supply chains, where global manufacturing remains highly concentrated. The U.S. currently has no domestic production of ferroboron, creating a critical dependency within specialty steel and permanent magnet supply chains.

Key Takeaways:
- Advances 5E towards realizing its longer-term mission of providing higher value boron derivatives
- Targets a higher-value boron derivative (ferroboron), leveraging Fort Cady boric acid as upstream feedstock.
- Addresses a U.S. vulnerability: USGS has noted the U.S. does not produce ferroboron and relies on imports.
- Positions 5E to support domestic NdFeB magnet supply chains amid high global concentration in rare-earth magnets.
This initiative reflects 5E’s strategy to expand beyond commodity borates into higher-value derivative materials, potentially enhancing long-term revenue mix, strategic relevance, and customer integration.

“5E’s vision has always been to derivatize its upstream feedstock and transition down the value chain. Today the U.S. is import-reliant for ferroboron, a critical component in permanent magnet manufacturing,” said Paul Weibel, Chief Executive Officer. “While there has been an obvious need to reinforce the supply chains for rare earths and permanent magnets, the U.S. has a ferroboron deficiency and following engagement with U.S. magnet manufacturers, there is a clear demand and need for a reliable and vertical supply chain in the U.S. 5E has the capability and reliable upstream feedstock to serve that need.”

The Company has initiated structured evaluations of engineering pathways, capital requirements, and partnership frameworks. Any production timeline is subject to technical validation, commercial alignment, and financing.

About 5E Advanced Materials, Inc.

5E Advanced Materials, Inc. (Nasdaq:FEAM)(ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron materials, complemented by calcium-based co-products, and potentially other by-products such as lithium carbonate. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, energy independence, food, national security, and the defense sector. The Company believes factors such as government regulation and incentives focused on domestic manufacturing and supply chains and capital investments across industries will drive demand for end-use applications like solar and wind energy infrastructure, neodymium-ferro-boron magnets, defense applications, lithium-ion batteries, and other critical material applications. The business is based on the Company’s large domestic boron resource, which is located in Southern California and designated as Critical Infrastructure by the U.S. Department of Homeland Security, and boron was included on the U.S. Government’s 2025 Critical Minerals List.

Forward Looking Statements

Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes and success thereof, market demand for boron and lithium, the potential applications of its products across energy, defense, agriculture and industrial markets, and ability to access and secure any government-based financing. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes, market demand for boron and lithium, and potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K and its other reports filed with the SEC. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations
Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations
Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire
February 24, 2026
5E Advanced Materials Announces Closing of $36 Million Upsized and Oversubscribed Public Offering of Common Stock

The offering was led by one of the Company’s largest stockholders and several new institutional investors

HESPERIA, CA / ACCESS Newswire / February 3, 2026 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (Nasdaq:FEAM)(ASX:5EA), a development stage company focused on becoming a vertically integrated global leader and supplier of refined borates, advanced boron derivative materials, and critical materials, today announced the closing of its previously announced best efforts public offering of common stock in the United States (the “Offering”). The Offering consisted of 18,000,000 shares of common stock at a public offering price of $2.00 per share, for gross proceeds of approximately $36 million, before deducting placement agent fees and other estimated Offering expenses payable by 5E.

Konik Capital Partners, LLC, a division of T.R. Winston & Company, acted as the sole placement agent for the Offering.

5E currently intends to use the net proceeds from the Offering, together with its existing cash, cash equivalents and marketable securities, for the operation of its small-scale boron facility (SSBF), wellfield development and finalization of our commercial mine plan, FEED engineering, and general corporate purposes. We believe this financing provides the necessary capital to finalize pending commercial offtake contracts and extends our operational runway through the critical commercialization phase.

The Offering was made pursuant to an effective registration statement on Form S-1 (File No. 333-292988) that was filed with and declared effective by the Securities and Exchange Commission (the “SEC”) on January 29, 2026. A final prospectus relating to and describing the final terms of the Offering has been filed with the SEC and is available on the SEC’s website located at http://www.sec.gov. The Offering was made only by means of a prospectus forming part of the effective registration statement. Electronic copies of the final prospectus relating to the Offering may be obtained from: Konik Capital Partners, LLC, a division of T.R. Winston & Company, 7 World Trade Center, 46th Floor, New York, NY 10007, or e-mail at capmarkets@konikcapitalpartners.com.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy the securities described herein, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About 5E Advanced Materials, Inc.

5E Advanced Materials, Inc. (Nasdaq:FEAM)(ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of boron specialty and advanced materials, complemented by lithium co-product production. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, food and domestic security. Boron and lithium products will target applications in the fields of electric transportation, clean energy infrastructure, such as solar and wind power, fertilizers, and domestic security. The business strategy and objectives are to develop capabilities ranging from upstream extraction and product sales of boric acid, lithium carbonate and potentially other co-products, to downstream boron advanced material processing and development. The business is based on our large domestic boron and lithium resource, which is located in Southern California and designated as Critical Infrastructure by the Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency.

Forward Looking Statements

Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding 5E’s intended use of proceeds from the Offering. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, risks and uncertainties related to market conditions. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K, its other reports filed with the SEC, as well as in the preliminary prospectus and final prospectus related to the Offering. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations

Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations

Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire

February 24, 2026
5E Advanced Materials Prices $36 Million Upsized and Oversubscribed Public Offering of Common Stock

HESPERIA, CALIFORNIA / ACCESS Newswire / January 29, 2026 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (Nasdaq:FEAM)(ASX:5EA), a development stage company focused on becoming a vertically integrated global leader and supplier of refined borates, advanced boron derivative materials, and critical materials, today announced the pricing of its best efforts public offering of common stock in the United States (the “Offering”).

In the Offering, 5E is selling 18,000,000 shares of common stock at a public offering price of $2.00 per share. All shares of common stock to be sold in the Offering are being offered by 5E. The gross proceeds to 5E from the Offering are expected to be approximately $36.0 million, before deducting placement agent fees and other estimated Offering expenses payable by 5E. Subject to the satisfaction of customary conditions, the Offering is expected to close on February 2, 2026.

Konik Capital Partners, LLC, a division of T.R. Winston & Company, is acting as the sole placement agent for the Offering.

5E currently intends to use the net proceeds from the Offering, together with its existing cash, cash equivalents and marketable securities, for the operation of its small-scale boron facility (SSBF), wellfield development and finalization of our commercial mine plan, FEED engineering, and general corporate purposes.

The Offering is being made pursuant to an effective registration statement on Form S-1 (File No. 333-292988) that was filed with and declared effective by the Securities and Exchange Commission (the “SEC”) on January 29, 2026. A final prospectus relating to and describing the final terms of the Offering will be filed with the SEC and will be available on the SEC’s website located at http://www.sec.gov. The Offering is being made only by means of a prospectus forming part of the effective registration statement. Electronic copies of the final prospectus relating to the Offering may be obtained, when available, from: Konik Capital Partners, LLC, 7 World Trade Center, 46th Floor, New York, NY 10007, or e-mail at capmarkets@konikcapitalpartners.com.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy the securities described herein, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About 5E Advanced Materials, Inc.

5E Advanced Materials, Inc. (Nasdaq:FEAM)(ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of boron specialty and advanced materials, complemented by lithium co-product production. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, food and domestic security. Boron and lithium products will target applications in the fields of electric transportation, clean energy infrastructure, such as solar and wind power, fertilizers, and domestic security. The business strategy and objectives are to develop capabilities ranging from upstream extraction and product sales of boric acid, lithium carbonate and potentially other co-products, to downstream boron advanced material processing and development. The business is based on our large domestic boron and lithium resource, which is located in Southern California and designated as Critical Infrastructure by the Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency.

Forward Looking Statements

Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the completion, size and timing of the Offering and 5E’s intended use of proceeds from the Offering. Any forward-looking statements are based on 5E’s current expectations, forecasts and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, risks and uncertainties related to market conditions and satisfaction of customary closing conditions related to the Offering. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K, its other reports filed with the SEC, as well as in the preliminary prospectus and final prospectus related to the Offering. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations

Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations

Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire

February 24, 2026
5E Advanced Materials Successfully Completes LCD Glass Trial for Major U.S. LCD Glass Manufacturer
Borate Product Successfully Passed All Qualification Parameters; Successful Trial Unlocks Path to Offtake Agreement

HESPERIA, CA / ACCESS Newswire / January 8, 2026 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (Nasdaq:FEAM)(ASX:5EA), a company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, today announced that its boric acid successfully passed all qualification parameters in a 20-ton commercial tank trial. The trial, conducted by a major U.S.-headquartered LCD glass manufacturer, began in December and represents a key step toward a potential initial offtake agreement and an important advancement in the Company’s commercialization strategy. The full qualification program included evaluation of key impurity profiles, moisture content, particle size distribution, flowability, and a logistics and shipping evaluation in a commercial manufacturing environment. 5E’s product met the customer’s specifications across these parameters for LCD glass production.

“Completing this customer qualification trial demonstrates another meaningful milestone on 5E’s path to commercialization and positions 5E with the necessary customer approvals for an offtake agreement,” said Paul Weibel, Chief Executive Officer. “We believe this commercial validation successfully demonstrates 5E’s capabilities to produce on-spec product in commercial quantities for the LCD glass industry and positions the company to secure its first offtake agreement.”

Trial Highlights
- Completion of 20-ton commercial tank trial with all qualification parameters met
- Concludes a multi-stage qualification program, including lab analysis, a supply chain trial, and a successful commercial tank trial
- Demonstrates ability to deliver an on-spec product at commercial quantities, including logistics and handling performance
- Next step: advance offtake discussions toward commercial terms
The customer qualification process spanned approximately eight months and included lab testing, supply chain validation, and a full commercial tank trial. The LCD glass industry requires some of the highest quality standards in the borate market, and the major customer for whom 5E has successfully qualified its product maintains a multi-stage testing and qualification program. Testing of 5E’s product began in April 2025 when samples passed an initial technical evaluation and lab-based glass melting process. Upon the successful lab trial, 5E’s product was recommended for a supply chain trial which 5E successfully passed in August 2025. The supply chain trial was another critical step to assist in gauging finished product moisture levels and assessing flowability before input into a real-time glass manufacturing environment. In October 2025, 5E shipped 20 tons of boric acid to Southeast Asia for the customer to conduct a tank trial in a commercial manufacturing environment. 5E was notified in early December 2025 that the trial commenced and initial performance indications were positive. With the trial complete, 5E’s product has passed all required testing parameters and confirmed the product produced meets specifications for LCD glass manufacturing.

In addition to LCD glass manufacturing, boron is a critical mineral that enables modern day technological and everyday applications. Boron strengthens solar panel glass, improves battery performance and durability, creates a safer nuclear reactor by absorbing neutrons, and supports the lightweight armor that protects American troops. In aerospace, boron-based composites boost performance by reducing weight, and in agriculture, boron fertilizers enhance crop yields. Boron’s recent inclusion on the United States Department of Interior’s 2025 Critical Minerals List, together with the designation of 5E’s facility as Critical Infrastructure, reinforces the strategic importance of 5E’s potential entry into this concentrated market. These applications underscore the importance of establishing a reliable domestic boron supply chain to support U.S. manufacturing, energy security, and defense readiness.

About 5E Advanced Materials, Inc.

5E Advanced Materials, Inc. (Nasdaq:FEAM)(ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron materials, complemented by calcium-based co-products, and potentially other by-products such as lithium carbonate. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, energy independence, food, national security, and the defense sector. The Company believes factors such as government regulation and incentives focused on domestic manufacturing and supply chains and capital investments across industries will drive demand for end-use applications like solar and wind energy infrastructure, neodymium-ferro-boron magnets, defense applications, lithium-ion batteries, and other critical material applications. The business is based on the Company’s large domestic boron resource, which is located in Southern California and designated as Critical Infrastructure by the U.S. Department of Homeland Security, and boron was included on the U.S. Government’s 2025 Critical Minerals List.

Forward Looking Statements

Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes and success thereof, market demand for boron and lithium, the potential applications of its products across energy, defense, agriculture and industrial markets, and ability to access and secure any government-based financing. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes, market demand for boron and lithium, and potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K and its other reports filed with the SEC. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations
Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations
Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire
January 9, 2026
5E Advanced Materials Files Foundational U.S. Patent to Protect Closed-Loop In-situ Boron Mining and Production Technology

Claims Would Strengthen Competitive Moat and Reinforce Market Leadership

Omnibus Application includes 167 Invention Claims Covering 5E’s End-to-End Borate Mining, Bolstering Long-term IP Protection

HESPERIA, CA / ACCESS Newswire / December 17, 2025 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (Nasdaq:FEAM)(ASX:5EA), a U.S. development-stage company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, has filed an omnibus application with the United States Patent and Trademark Office (USPTO) for a proprietary, closed-loop in-situ leach (ISL) mining and production process that has lowered 5E’s operating costs, reduced its environmental footprint, and, if granted, will create meaningful barriers to competitors seeking to replicate the Company’s ISL technology. The patent application includes 167 claims covering 5E’s mining process and production for boric acid, gypsum, sodium chloride, as well as the management of metal impurities. Over the coming weeks, 5E intends to file several additional standalone applications. The patents would form a cornerstone of 5E’s intellectual property portfolio, covering key steps from injection to recovery, processing, and reinjection.

“With 5E filing the omnibus application, we are taking an important step to secure the intellectual property that underpins our differentiated ISL mining and processing platform that has led to our technical successes,” said Paul Weibel, Chief Executive Officer of 5E Advanced Materials. “5E performed ISL pilot operations in the 1980’s and has been mining consistently for nearly two years. Building on this experience, our team developed a closed-loop process designed to lower costs, improve sustainability, and enhance mining efficiency. This patent filing is intended to protect that know-how and support our long-term commercial and strategic objectives through the protections provided by the USPTO.”

ISL borate mining techniques at the Fort Cady Project trace back to pilot programs in the early 1980s with the discovery of mineral resources dating to 1964. Primary exploration work and land acquisition occurred over the next two decades. A series of ISL pilot programs occurred on three separate occasions from 1981 to 1982, 1986 to 1987, and 1987 to 1988. The major permitting initiative commenced in 1990 with the Record of Decision from the United States Bureau of Land Management and a Conditional Use Permit and Reclamation Plan from the California Department of Conservation and San Bernardino County obtained in 1994. This unique history, combined with permits from federal, state and local agencies, positions 5E with one of the most strategically advanced and de-risked ISL boron assets in the United States.

5E obtained its approval to commence mining from the United States Environmental Protection Agency in November 2023 and recommenced ISL mining in January 2024. Mining occurs via ISL technology and initially utilized four vertical injection-recovery wells where recovered leached solution is processed at 5E’s Small-Scale Facility (SSF). In July 2025, two vertical injection-recovery wells were converted to horizontal wells with downhole fiber optics to pilot ISL techniques and demonstrate baseline head grades, temperatures, impurity profiles, injection rates, and recovery rates. Mined solution is processed into boric acid and gypsum at the SSF where it has demonstrated meeting the highest commercial product specifications.

The novel processing technology produces boric acid, gypsum and calcium chloride via ISL technology while regenerating hydrochloric acid via aqueous chemistry, with the overall mining process being a closed loop where mining feedstock is regenerated and recycled. This closed-loop ISL approach is designed to minimize waste, reduce reagent consumption, lower water and energy use, and limit surface disturbance compared with conventional open-pit mining. These advantages are aligned with increasing demand from customers and end-markets for more sustainable mineral production.

By submitting for patent protection for its proprietary ISL process in the United States, 5E aims to underpin a secure, domestic source of boron, a U.S.-designated critical mineral used in defense, clean energy, and high-tech applications, at a time when supply chain resilience has become a strategic priority for both government and industry. The patent filings align with 5E’s strategy to advance toward scaled production and long-term offtake discussions.

About 5E Advanced Materials, Inc.

5E Advanced Materials, Inc. (Nasdaq:FEAM)(ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron materials, complemented by calcium-based co-products, and potentially other by-products such as lithium carbonate. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, energy independence, food, national security, and the defense sector. The Company believes factors such as government regulation and incentives focused on domestic manufacturing and supply chains and capital investments across industries will drive demand for end-use applications like solar and wind energy infrastructure, neodymium-ferro-boron magnets, defense applications, lithium-ion batteries, and other critical material applications. The business is based on the Company’s large domestic boron resource, which is located in Southern California and designated as Critical Infrastructure by the U.S. Department of Homeland Security and with the U.S. Government’s 2025 Critical Minerals List following boron’s inclusion.

Forward Looking Statements

Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the success and enforceability of the Company’s patent applications and other intellectual property protections, development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes and success thereof, market demand for boron and lithium, the potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, the timing, outcome, and enforceability of the Company’s patent applications and other intellectual property protections and statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes, market demand for boron and lithium, and potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K and its other reports filed with the SEC. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations
Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations
Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire

December 19, 2025
5E Advanced Materials to Present at RedChip Virtual Critical Minerals Conference
CEO Paul Weibel to Provide Strategic and Commercial Update as 5E Advances Key Milestones and Strengthens Its Position in the U.S. Critical Minerals Supply Chain

HESPERIA, CALIFORNIA / ACCESS Newswire / December 9, 2025 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (Nasdaq:FEAM)(ASX:5EA), a U.S. development-stage company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, today announced that Chief Executive Officer Paul Weibel will present at the RedChip Critical Minerals Virtual Investor Conference on December 10, 2025, at 1:30 PM Eastern Time. The event will highlight high-growth opportunities as North America accelerates efforts to onshore critical mineral supply chains.

During the presentation, Mr. Weibel will discuss:
- Progress across key commercial and technical workstreams
- 5E’s positioning within the U.S. critical minerals landscape
- Near-term milestones supporting customer engagement and long-term growth
“This is a pivotal period for 5E as we continue advancing the commercial and technical foundations required to scale a secure, domestic boron supply chain,” says Paul Weibel, CEO, 5E Advanced Materials. “We look forward to engaging with investors and demonstrating why 5E is uniquely positioned to support the reshoring of critical materials essential to energy, technology, and defense applications.”

A live Q&A session with investors will follow the formal presentation. Registration details for the event can be accessed via RedChip’s conference platform here.

Forward Looking Statements

Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes and success thereof, market demand for boron and lithium, the potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes, market demand for boron and lithium, and potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K and its other reports filed with the SEC. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations
Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations
Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire
December 10, 2025
5E Advanced Materials Reports Positive Progress with Commencement of LCD Glass Trial

Customer Initiates Product Testing with Glass Furnace Receiving First Batch of 5E Boric Acid; Results Expected Before Year-end

HESPERIA, CA / ACCESS Newswire / December 9, 2025 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (NASDAQ:FEAM)(ASX:5EA), a U.S. development-stage company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, today announced that the major domestic LCD glass manufacturer, to which 5E shipped twenty tons of borates, has commenced testing with 5E’s boric acid being dispatched into the glass furnace.

In October 2025, 5E shipped twenty tons of high-quality boric acid overseas for the customer’s final phase of testing. Previously, the customer had performed a successful laboratory bench testing program where 5E’s boric acid passed all required specifications. Upon the successful bench trial, the customer required 5E to perform a supply-chain trial where two tons of product were shipped in a container across the Pacific Ocean. 5E’s product performed well during the second trial and the successful supply chain trial paved the way for the final tank trial test.

“This final tank trial is a major commercial de-risking milestone for 5E that builds upon the successful supply chain trial from earlier in the year. The twenty tons of boric acid we shipped have now begun testing and the reports have been highly positive with product meeting the customer’s specifications, flowing well into the glass furnace,” said Paul Weibel, Chief Executive Officer of 5E Advanced Materials. “The LCD glass industry has the most rigorous product specifications in the borates market and completing this test positions 5E to advance multi-year supply agreements. 5E has diligently demonstrated our borates meet and exceed the highest specifications and I’m incredibly proud of our team and the capabilities we are demonstrating to the market.”

The borates market is currently dominated by a global oligopoly, and many industrial customers require three vetted and qualified suppliers. In practice, most customers rely on internal waivers to purchase from only two suppliers due to this market concentration. The need for an additional reliable domestic supplier is top of mind for customers. Boron’s recent inclusion on the United States Department of Interior’s 2025 Critical Minerals List, together with the designation of 5E’s facility as Critical Infrastructure, reinforces the strategic importance of 5E’s potential entry into this concentrated market.

About 5E Advanced Materials, Inc.
5E Advanced Materials, Inc. (NASDAQ:FEAM)(ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron materials, complemented by calcium-based co-products, and potentially other by-products such as lithium carbonate. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, energy independence, food, national security, and the defense sector. The Company believes factors such as government regulation and incentives focused on domestic manufacturing and supply chains and capital investments across industries will drive demand for end-use applications like solar and wind energy infrastructure, neodymium-ferro-boron magnets, defense applications, lithium-ion batteries, and other critical material applications. The business is based on the Company’s large domestic boron resource, which is located in Southern California and designated as Critical Infrastructure by the U.S. Department of Homeland Security and with the U.S. Government’s 2025 Critical Minerals List following boron’s inclusion.

Forward Looking Statements
Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes and success thereof, market demand for boron and lithium, the potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, statements regarding the Company’s development plans, production capabilities, commercialization strategy, offtake discussions, customer qualification processes, market demand for boron and lithium, and potential applications of its products across energy, defense, and industrial markets, and ability to access and secure any government-based financing. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in 5E’s most recent Annual Report on Form 10-K and its other reports filed with the SEC. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:

Investor Relations
Brett Maas
Hayden IR, LLC
FEAM@haydenir.com
Ph: +1 (480) 861-2425

Media Relations
Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire

December 9, 2025

5E Advanced Materials Announces Substantial Resource Upgrade; Total Measured and Indicated Borate Resources Increase 61% and Lithium Resources Increase 54%

Upgraded Resources unlocks expansion optionality at Fort Cady

HESPERIA, CA / ACCESS Newswire / November 19, 2025 / 5E Advanced Materials, Inc. (“5E” or the “Company”) (NASDAQ:FEAM)(ASX:5EA), a development stage company focused on becoming a vertically integrated global leader and supplier of refined borates, advanced boron derivative materials, and critical minerals, today announced a material increase to its borate and lithium resources for the Company’s Fort Cady Project (the “Project”) located in the Mojave Desert, near the town of Newberry Springs, California.

The mineral resources upgrade demonstrates the largest reported measured and indicated borate resources in the United States and further positions the Company to become the next commercial borate producer.

Highlights of the Resource Upgrade

Total Measured and Indicated Mineral Resources of boric acid increased 61% from 17.5M tons to 28.3M tons with grade of 8.09% (B₂O₃), an increase of 10.8M tons.
Total Measured Mineral Resources of boric acid increased 170% from 3.3M tons to 9.1M tons with grade of 8.34% (B₂O₃), an increase of 5.8M tons.
Total Indicated Mineral Resources of boric acid increased 35% from 14.2M tons to 19.2M tons with grade of 7.97% (B₂O₃), an increase of 5.0M tons.
Total Measured and Indicated Mineral Resources of Lithium Carbonate Equivalent (LCE) increased 54% from 213K tons to 328K tons with 0.17% LCE.
Implied resource life of 217 years using first phase of production (130K ST per annum) and excludes inferred resources.
Project retains optionality for future expansion phases of additional production tonnage.

“Combined with boron’s recent designation as a U.S. critical mineral, this resource upgrade reinforces Fort Cady’s potential to anchor a secure domestic boron supply chain for generations to come,” said Paul Weibel, CEO of 5E Advanced Materials. “With the milestones we have achieved, 5E is now well-positioned to unlock the strategic optionality and long-term value of this asset as we advance our vision of becoming America’s next leading boron supplier.”

The Company’s borate mineralization is colemanite, a mudstone that formed from lacustrine lakebed sediments, fixed in place, continuous, and sufficiently distinct from the surrounding mineralization. After consultation with mineral experts, the Company determined federal lode claims are the appropriate instrument to establish mineral tenure. In July 2025, the Company staked lode claims for the remaining areas that were open for colemanite mineralization and in August 2025, the Company filed the lode claims with the United States Bureau of Land Management which were subsequently recorded in the official records of San Bernardino County. The Company now holds 28 federal lode claims that encompass the entire Project mineralization detailed in Figure 1.

Figure 1. Fort Cady Project Mineral Tenure

Comparison of Pre-Feasibility Technical Report Resources to Upgraded Mineral Resources
The mineral reserves and project economics disclosed in the Company’s Preliminary Feasibility Study Technical Report Summary, previously filed with the Securities and Exchange Commission, and filed as an exhibit to 5E’s Annual Report on Form 10-K on September 29, 2025, have not changed and all disclosures remain current with the exception of mineral resources which will be disclosed on Form 8-K filed with the Securities and Exchange Commission. Table 1 below highlights and compares the mineral resources disclosed in the Company’s pre-feasibility study with the upgraded resources.

Table 1. Mineral Resources Comparison

Description	Units	Pre-Feasibility Study	Upgraded Resources	% Change
Resource Tons	Tons (short)	135,774,350	204,800,282	+51%
Measured H₃BO₃ (tonnage)	Tons (short)	3,366,296	9,094,580	+170%
Indicated H₃BO₃ (tonnage)	Tons (short)	14,178,532	19,202,149	+35%
Inferred H₃BO₃ (tonnage)	Tons (short)	553,231	553,231	No Change
Measured LCE (tonnage)	Tons (short)	38,012	100,895	+165%
Indicated LCE (tonnage)	Tons (short)	174,564	226,649	+30%
Inferred LCE (tonnage)	Tons (short)	6,630	6,630	No Change

Mineral Resources
The mineral resources after the resource upgrade now include 61.9 million short tons of measured ore containing 9.1 million short tons of in-situ boric acid, with an average grade of 8.34% B₂O₃. The indicated category now comprises 138.6 million short tons of ore containing 16.8 million short tons of in-situ boric acid, with an average grade of 7.97% B₂O₃. Mineral resources were estimated using a 2.0% B₂O₃ cut-off grade and Table 2 summarizes the mineral resources.

Table 2. Fort Cady Project Mineral Resources Summary, November 15, 2025

*Mineral Resources
	Short Tons (MST)	B₂O₃ (wt. %)	B₂O₃ (MST)	H₃BO₃ (MST)
Measured	61.92	8.34	5.12	9.09
Indicated	138.60	7.97	10.81	19.20
Total Measured + Indicated	200.52	8.09	15.93	28.29
Total Inferred	4.29	7.45	0.31	0.55

*Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. Under S-K 1300, inferred mineral resources are not considered economically recoverable within the current mine plan and are excluded from the production schedule and economic analysis. Inferred Mineral Resources include areas not currently under mineral tenure control. These are disclosed for transparency but excluded from the mine plan and economic model. The Company makes no assurance that mineral rights to these areas will be secured.

Notes to Mineral Resources:

The Mineral Resources in this estimate were independently prepared, including estimation and classification, by Steven Kerr, P.G., C.P.G, Escalante Geological Services, LLC, and are reported in accordance with the definition for Mineral Resources in S-K 1300.
The Mineral Resources were completed using a gridded seam model with Carlson Mining™ software.
The Mineral Resources are current as of November 15, 2025.
Mineral Resources are constrained assuming in-situ leaching and are reported at a cutoff grade of 2.0% B₂O₃, assume mineralized horizons exhibit lateral continuity that supports in-situ leaching mining methods, and based on exploration data, there is reasonable continuity of colemanite mineralization throughout the deposit, respectively.

About 5E Advanced Materials, Inc.
5E Advanced Materials, Inc. (NASDAQ:FEAM)(ASX:5EA) is focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron materials, complemented by calcium-based co-products, and potentially other by-products such as lithium carbonate. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, energy independence, food, national security, and the defense sector. The Company believes factors such as government regulation and incentives focused on domestic manufacturing and supply chains and capital investments across industries will drive demand for end-use applications like solar and wind energy infrastructure, neodymium-ferro-boron magnets, defense applications, lithium-ion batteries, and other critical material applications. The business is based on the Company’s large domestic boron resource, a mineral which was added to the U.S. Department of the Interior’s 2025 Critical Minerals List. The project is located in Southern California and designated as Critical Infrastructure by the U.S. Department of Homeland Security.

Forward Looking Statements
Statements in this press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this press release may be identified by the use of words such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, and include, but are not limited to, statements regarding the Company’s ability to progress, full-scale product testing, advance customer qualifications, enter into offtake agreements, achieve key milestones on the path toward a potential Final Investment Decision, and become a vertically integrated global leader in borates and advanced boron materials. Any forward-looking statements are based on 5E’s current expectations, forecasts, and assumptions and are subject to a number of risks and uncertainties that could cause actual outcomes and results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, statements regarding the Company’s mineral resource and reserve estimates and assumptions; the economic potential of the Project; our ability to establish or defend our mineral tenure; and our ability to produce boron, lithium or their related byproducts. For a discussion of other risks and uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled ‘Risk Factors’ in 5E’s most recent Annual Report on Form 10-K and its other reports filed with the SEC. Forward-looking statements contained in this announcement are based on information available to 5E as of the date hereof and are made only as of the date of this release. 5E undertakes no obligation to update such information except as required under applicable law. These forward-looking statements should not be relied upon as representing 5E’s views as of any date subsequent to the date of this press release. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of 5E.

For further information contact:
Michael MacMillan or Paola Ashton
PRA Communications
team@pracommunications.com
Ph: +1 (604) 681-1407

SOURCE: 5E Advanced Materials, Inc.

View the original press release on ACCESS Newswire

November 21, 2025