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Ioneer Ltd filings document a foreign private issuer focused on the Rhyolite Ridge Lithium-Boron Project in Nevada. Its Form 6-K reports include quarterly activity reports, press releases, governance statements, annual general meeting notices, and exhibits describing project development, federal permitting, court decisions affecting the mine plan, equity financing, and technical reporting under Subpart 1300 of Regulation S-K.
The filing record also covers ASX Corporate Governance Council disclosures, Appendix 4G cross-references, board oversight practices, shareholder meeting procedures, proxy voting matters, and capital-structure updates related to ordinary share issuances and project funding.
Ioneer Ltd reported results of its 2026 Annual General Meeting, where all resolutions were passed by poll, including the remuneration report, director re‑elections and multiple Performance Rights issues in lieu of directors’ fees.
The AGM materials and Managing Director presentation highlight the Rhyolite Ridge Lithium-Boron Project, with a stated NPV of $2.3B, a levered IRR of 23.2%, and a 77‑year mine life based on a 265Mt Ore Reserve. The project is described as fully permitted and shovel ready, supported by a US$996 million U.S. Department of Energy loan, lithium and boron offtake agreements, and positioning within U.S. critical mineral and battery supply chains. Management reiterates its focus on securing equity financing and reaching a Final Investment Decision while noting a Nevada District Court ruling upholding the federal permit and ongoing environmental measures such as cultivating Tiehm’s buckwheat.
Ioneer Ltd reported results of its 2026 Annual General Meeting, where all resolutions were passed by poll, including the remuneration report, director re‑elections and multiple Performance Rights issues in lieu of directors’ fees.
The AGM materials and Managing Director presentation highlight the Rhyolite Ridge Lithium-Boron Project, with a stated NPV of $2.3B, a levered IRR of 23.2%, and a 77‑year mine life based on a 265Mt Ore Reserve. The project is described as fully permitted and shovel ready, supported by a US$996 million U.S. Department of Energy loan, lithium and boron offtake agreements, and positioning within U.S. critical mineral and battery supply chains. Management reiterates its focus on securing equity financing and reaching a Final Investment Decision while noting a Nevada District Court ruling upholding the federal permit and ongoing environmental measures such as cultivating Tiehm’s buckwheat.
Ioneer Ltd reported its March 2026 quarter, highlighting project, financing and permitting milestones for the Rhyolite Ridge lithium-boron project. The company completed an equity placement of 400,000,000 new shares for gross proceeds of A$72 million (about US$50 million), lifting cash and cash equivalents to US$61.863 million as of 31 March 2026.
Net operating cash outflow was US$1.768 million, with a further US$2.057 million capitalised into exploration and evaluation. This supports an estimated 16.2 quarters of funding at current spending levels. A U.S. federal court upheld the project’s federal Record of Decision, though opponents have appealed to the Ninth Circuit.
Ioneer advanced strategic partnering discussions expected to conclude by the end of the June quarter, continued environmental permitting compliance, reported no workplace injuries, and progressed conservation work for Tiehm’s buckwheat. Pre‑feasibility studies on battery-grade lithium carbonate and boron carbide remain targeted for completion by the end of Q2 2026.
Ioneer Ltd reported its March 2026 quarter, highlighting project, financing and permitting milestones for the Rhyolite Ridge lithium-boron project. The company completed an equity placement of 400,000,000 new shares for gross proceeds of A$72 million (about US$50 million), lifting cash and cash equivalents to US$61.863 million as of 31 March 2026.
Net operating cash outflow was US$1.768 million, with a further US$2.057 million capitalised into exploration and evaluation. This supports an estimated 16.2 quarters of funding at current spending levels. A U.S. federal court upheld the project’s federal Record of Decision, though opponents have appealed to the Ninth Circuit.
Ioneer advanced strategic partnering discussions expected to conclude by the end of the June quarter, continued environmental permitting compliance, reported no workplace injuries, and progressed conservation work for Tiehm’s buckwheat. Pre‑feasibility studies on battery-grade lithium carbonate and boron carbide remain targeted for completion by the end of Q2 2026.
Ioneer Ltd filed a transition Form 20-F covering July 1 to December 31, 2025, outlining progress and risks for its Rhyolite Ridge lithium-boron project in Nevada. The company holds 100% of the project, which it expects to become a long-life, low-cost source of lithium and boron.
Ioneer secured a US$996 million U.S. Department of Energy loan commitment under the Advanced Technology Vehicles Manufacturing program to support an on-site processing facility, while total project capital expenditure is now estimated at US$1,683.2 million. As of December 31, 2025, the company had invested US$209.0 million in Rhyolite Ridge.
The report highlights federal permitting completion, ongoing appeals litigation, a strategic partnering process expected to conclude in the first half of 2026, significant funding needs beyond the DOE loan, and extensive risk factors, including cost inflation, permitting and environmental challenges, mining execution, capital market access, ADS market volatility and potential adverse U.S. tax treatment as a passive foreign investment company.
Ioneer Ltd filed a transition Form 20-F covering July 1 to December 31, 2025, outlining progress and risks for its Rhyolite Ridge lithium-boron project in Nevada. The company holds 100% of the project, which it expects to become a long-life, low-cost source of lithium and boron.
Ioneer secured a US$996 million U.S. Department of Energy loan commitment under the Advanced Technology Vehicles Manufacturing program to support an on-site processing facility, while total project capital expenditure is now estimated at US$1,683.2 million. As of December 31, 2025, the company had invested US$209.0 million in Rhyolite Ridge.
The report highlights federal permitting completion, ongoing appeals litigation, a strategic partnering process expected to conclude in the first half of 2026, significant funding needs beyond the DOE loan, and extensive risk factors, including cost inflation, permitting and environmental challenges, mining execution, capital market access, ADS market volatility and potential adverse U.S. tax treatment as a passive foreign investment company.
Ioneer Ltd outlines items for its fully virtual 2026 annual general meeting on 21 May 2026, including consideration of the Additional Annual Report for the six months to 31 December 2025 and an advisory vote on the Remuneration Report. Shareholders are asked to re-elect directors Rose McKinney-James and James D. Calaway and approve issuing Performance Rights to five directors in lieu of part of their fees, based on a 10‑day VWAP formula. Another resolution seeks ratification of a prior issue of 400,000,000 shares at $0.18 each to placement investors so these securities no longer count toward the company’s 15% ASX placement capacity. A contingent ‘spill’ resolution could require a further shareholder meeting to re-elect the board if at least 25% of votes oppose the Remuneration Report, with the board recommending votes against this spill resolution.
Ioneer Ltd outlines items for its fully virtual 2026 annual general meeting on 21 May 2026, including consideration of the Additional Annual Report for the six months to 31 December 2025 and an advisory vote on the Remuneration Report. Shareholders are asked to re-elect directors Rose McKinney-James and James D. Calaway and approve issuing Performance Rights to five directors in lieu of part of their fees, based on a 10‑day VWAP formula. Another resolution seeks ratification of a prior issue of 400,000,000 shares at $0.18 each to placement investors so these securities no longer count toward the company’s 15% ASX placement capacity. A contingent ‘spill’ resolution could require a further shareholder meeting to re-elect the board if at least 25% of votes oppose the Remuneration Report, with the board recommending votes against this spill resolution.
ioneer Ltd director Alan Davies has filed an initial ownership report showing substantial holdings in the company’s Ordinary Shares. He directly holds 3,485,583 Ordinary Shares, including 188,083 time-based units scheduled to vest on November 2, 2026. An additional 2,616,649 Ordinary Shares are reported as indirectly held through Diversa Trustees Limited as trustee for the HUB24 Super Fund. This filing records existing ownership positions rather than new share purchases or sales.
ioneer Ltd director Alan Davies has filed an initial ownership report showing substantial holdings in the company’s Ordinary Shares. He directly holds 3,485,583 Ordinary Shares, including 188,083 time-based units scheduled to vest on November 2, 2026. An additional 2,616,649 Ordinary Shares are reported as indirectly held through Diversa Trustees Limited as trustee for the HUB24 Super Fund. This filing records existing ownership positions rather than new share purchases or sales.
Ioneer Ltd reports that the U.S. District Court for the District of Nevada has upheld federal approval of its Rhyolite Ridge Lithium-Boron Project mine plan, rejecting all legal challenges. The court confirmed that federal agencies complied with key U.S. environmental laws in their review.
The Nevada project aims to supply lithium and boron for batteries, permanent magnets, semiconductors, energy storage and defense uses, supporting a more secure U.S. supply chain. Ioneer describes the ruling as a significant milestone that lets it continue advancing toward construction and completing its strategic partnering process.
Ioneer is the 100% owner of Rhyolite Ridge, which previously secured a US$996 million loan from the U.S. Department of Energy’s Energy Dominance Financing Program in January 2025 and received its final federal permit from the Bureau of Land Management in October 2024. The company has offtake agreements with Ford, Prime Planet Energy & Solutions and EcoPro Innovation.
Ioneer Ltd reports that the U.S. District Court for the District of Nevada has upheld federal approval of its Rhyolite Ridge Lithium-Boron Project mine plan, rejecting all legal challenges. The court confirmed that federal agencies complied with key U.S. environmental laws in their review.
The Nevada project aims to supply lithium and boron for batteries, permanent magnets, semiconductors, energy storage and defense uses, supporting a more secure U.S. supply chain. Ioneer describes the ruling as a significant milestone that lets it continue advancing toward construction and completing its strategic partnering process.
Ioneer is the 100% owner of Rhyolite Ridge, which previously secured a US$996 million loan from the U.S. Department of Energy’s Energy Dominance Financing Program in January 2025 and received its final federal permit from the Bureau of Land Management in October 2024. The company has offtake agreements with Ford, Prime Planet Energy & Solutions and EcoPro Innovation.
ioneer Ltd director Timothy Roy Woodall reported an open-market purchase of 200,000 Ordinary Shares of the company. The shares were bought at an average price of $0.108 per share. After this transaction, his direct ownership increased to 963,083 Ordinary Shares, indicating a larger personal stake in the company.
ioneer Ltd director Timothy Roy Woodall reported an open-market purchase of 200,000 Ordinary Shares of the company. The shares were bought at an average price of $0.108 per share. After this transaction, his direct ownership increased to 963,083 Ordinary Shares, indicating a larger personal stake in the company.
ioneer Ltd director Timothy Roy Woodall filed an amended Form 3 to correct his reported beneficial ownership of Ordinary Shares. The amendment states that as of March 18, 2026, he beneficially owned 763,083 Ordinary Shares, instead of the 563,103 shares previously reported.
The updated figure includes 188,083 Ordinary Shares underlying time-based units that vest on November 2, 2026 and 200,000 Ordinary Shares underlying time-based units that vest on May 4, 2028. This filing does not reflect a new trade but a correction to prior disclosure.
ioneer Ltd director Timothy Roy Woodall filed an amended Form 3 to correct his reported beneficial ownership of Ordinary Shares. The amendment states that as of March 18, 2026, he beneficially owned 763,083 Ordinary Shares, instead of the 563,103 shares previously reported.
The updated figure includes 188,083 Ordinary Shares underlying time-based units that vest on November 2, 2026 and 200,000 Ordinary Shares underlying time-based units that vest on May 4, 2028. This filing does not reflect a new trade but a correction to prior disclosure.
ioneer Ltd filed a Form 6‑K providing its 2025 Corporate Governance Statement and an Appendix 4G cross‑referencing ASX governance recommendations. The Board operates under formal charters, with four standing committees covering audit and risk, nominations and remuneration, project execution and environmental, health, safety and sustainability.
The Board has a majority of independent non‑executive directors, although the Executive Chair is not considered independent. Ioneer reports gender diversity across the organisation and has a formal diversity policy, but does not set measurable gender targets because of legal and regulatory constraints in some jurisdictions. The company highlights risk oversight for its planned Rhyolite Ridge project in Nevada, uses an external auditor but has no formal internal audit function, and maintains policies on continuous disclosure, whistleblowing, and anti‑bribery and corruption.
ioneer Ltd filed a Form 6‑K providing its 2025 Corporate Governance Statement and an Appendix 4G cross‑referencing ASX governance recommendations. The Board operates under formal charters, with four standing committees covering audit and risk, nominations and remuneration, project execution and environmental, health, safety and sustainability.
The Board has a majority of independent non‑executive directors, although the Executive Chair is not considered independent. Ioneer reports gender diversity across the organisation and has a formal diversity policy, but does not set measurable gender targets because of legal and regulatory constraints in some jurisdictions. The company highlights risk oversight for its planned Rhyolite Ridge project in Nevada, uses an external auditor but has no formal internal audit function, and maintains policies on continuous disclosure, whistleblowing, and anti‑bribery and corruption.
ioneer Ltd executive Kenneth D. Coon, Vice President of Human Resources, has filed an initial ownership report showing substantial direct equity holdings. He directly owns 3,438,962 ordinary shares, including 185,642 shares in units vesting on July 1, 2026, 431,950 shares vesting on July 1, 2027, and 787,141 shares vesting on January 1, 2029. He also has exposure through 44,451 American Depositary Shares, each convertible into 40 ordinary shares, representing 1,778,040 ordinary shares, with no expiration date.
ioneer Ltd executive Kenneth D. Coon, Vice President of Human Resources, has filed an initial ownership report showing substantial direct equity holdings. He directly owns 3,438,962 ordinary shares, including 185,642 shares in units vesting on July 1, 2026, 431,950 shares vesting on July 1, 2027, and 787,141 shares vesting on January 1, 2029. He also has exposure through 44,451 American Depositary Shares, each convertible into 40 ordinary shares, representing 1,778,040 ordinary shares, with no expiration date.