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IONRNasdaqMining & Quarrying of Nonmetallic Minerals (No Fuels)Fiscal year ends December 31Also trades as GSCCF

ioneer Ltd

Financials through fiscal 2026, year ended Jun 30, 2026Last filing: 20-F on Apr 29, 2026
$2.75−0.01 (-0.36%)

Close on Oct 19, 2026

Market cap
–
P/E (TTM)
–
Dividend yield
–

About ioneer

Mining & Quarrying of Nonmetallic Minerals (No Fuels), SIC 1400

ioneer Ltd is a mineral exploration and development company that focuses on the extraction and processing of lithium and boron minerals. The business operates primarily through its Rhyolite Ridge Lithium-Boron Project, managing operating segments in North America and Australia. Its principal product offerings include lithium carbonate, battery-grade lithium hydroxide, and boric acid for industrial and advanced technology use. The company does not identify specific commercial customers in the text, though its outputs target downstream lithium and boron consumers.

The company is headquartered in North Sydney, Australia, and maintains an office in Reno, Nevada. Its flagship asset is located in Nevada, representing the only known lithium-boron deposit in North America and one of two globally. The enterprise conducts business across Australia and North America, maintaining corporate subsidiaries in both the United States and Canada.

Summary of the business section of ioneer's latest annual report, written by StockData.

Company profile

Company

Legal name
ioneer Ltd
Headquarters
North Sydney, NV
Address
140 Arthur Street, Suite 5.03, Level 5
Phone
61(2)99225800
Website
ioneer.com
Employees
21, Dec 31, 2025
Industry
Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Incorporated in
C3
Fiscal year ends
December 31
Auditor
Ernst & Young, Sydney, Australia

Stock & identifiers

Ticker
IONR
Other tickers
GSCCF
Exchange
Nasdaq
IPO date
Jun 30, 2022
Shares outstanding
2.67B, Dec 31, 2025
Filer category
Non-accelerated filer<br>Emerging growth company
SEC CIK
1896084
CUSIP
46211L101
ISIN
US46211L1017
EIN
00-0000000

Executives and directors

Officers and directors who filed ownership reports (Forms 3, 4, 5) in the last two years

NamePositionShares owned
Kenneth D. CoonVice President Human Resources3,475,989
Chad YeftichVP Corp Dev & External Affairs6,386,671
Matthew WeaverSVP of Engineering Operations11,299,711
Yoshio NagaiVP Comm. Sales & Marketing8,095,472
April HashimotoChief Financial Officer–
Alan DaviesDirector6,102,232
Timothy Roy WoodallDirector963,083
Rose Mckinney-JamesDirector990,363
Margaret R. WalkerDirector990,343
James D. CalawayDirector63,595,869
Benard RoweDirector62,806,195

Employees

Headcount reported in annual reports

“As of December 31, 2025, we had 21 employees and 9 employee contractors based in five different countries, as shown in the chart below.”