Exhibit 99.1

Almonty Industries Set to Join Large-Cap Russell
1000® Index and Broad-Market Russell 3000® Index
Dillon, Montana – May 28, 2026 –
Almonty Industries Inc. (NASDAQ: ALM) (TSX: AII) (ASX: AII) (Frankfurt: ALI1), a leading global producer of tungsten concentrate,
today announced that it is set to join the Large-Cap Russell 1000® Index, as well as the Broad-Market Russell 3000® Index, at
the conclusion of the 2026 Russell indexes reconstitution, according to a preliminary list of additions posted by FTSE Russell on Friday,
May 22, 2026. Almonty’s inclusion is expected to become effective when the market opens on Monday, June 29, 2026.
The June reconstitution of the Russell US Indexes
captures up to the 4,000 largest US stocks as of April 30, 2026, ranking them by total market capitalization. Almonty’s membership
in the Russell 3000® Index, which remains in place for half a year beginning 2026, means automatic inclusion in the large-cap Russell
1000® Index, as well as the appropriate growth and value style indexes. FTSE Russell determines membership for its Russell indexes
primarily by objective, market-capitalization rankings and style attributes.
Lewis Black, Chairman, President and Chief Executive
Officer of Almonty Industries, commented: “We are honoured to be set to join the Russell 3000 and 1000 indices, which we believe
reflects the significant operational and financial progress Almonty has made over the past year as we firmly establish ourselves as the
cornerstone of the Western tungsten supply chain. With our flagship Sangdong Mine in South Korea now coming on line, the relocation of
our corporate headquarters to the United States, and a fortress balance sheet to support continued growth, we believe inclusion in the
Russell indexes will further expand our visibility within the institutional investment community and broaden our shareholder base as we
execute on our long-term strategic vision.”
Russell indexes are widely used by investment managers
and institutional investors for index funds and as benchmarks for active investment strategies. According to data as of the end of June
2025, approximately $12.2 trillion in assets are benchmarked against the Russell US indexes, which belong to FTSE Russell, the global
index provider. For more information on the Russell 3000® Index and the Russell indexes reconstitution, please visit the “Russell
Reconstitution” section on the FTSE Russell website.
About FTSE Russell, an LSEG Business
FTSE Russell is a global index leader that provides
innovative benchmarking, analytics and data solutions for investors worldwide. FTSE Russell calculates thousands of indexes that measure
and benchmark markets and asset classes in more than 70 countries, covering 98% of the investable market globally. FTSE Russell index
expertise and products are used extensively by institutional and retail investors globally. Approximately $21.20 trillion is benchmarked
to FTSE Russell indexes. Leading asset owners, asset managers, ETF providers and investment banks choose FTSE Russell indexes to benchmark
their investment performance and create ETFs, structured products and index-based derivatives. A core set of universal principles guides
FTSE Russell index design and management: a transparent rules-based methodology is informed by independent committees of leading market
participants. FTSE Russell is focused on applying the highest industry standards in index design and governance and embraces the IOSCO
Principles. FTSE Russell is also focused on index innovation and customer partnerships as it seeks to enhance the breadth, depth and reach
of its offering. FTSE Russell is wholly owned by LSEG. For more information, visit FTSE Russell.
About Almonty Industries Inc.
Almonty (Nasdaq: ALM) (TSX: AII) (ASX: AII) (Frankfurt:
ALI1) is a leading supplier of conflict free tungsten – a strategic metal critical to the defense and advanced technology sectors.
As geopolitical tensions heighten, tungsten has become essential for armor, munitions, and electronics manufacturing. Almonty’s
flagship Sangdong Mine in South Korea, historically one of the world’s largest and highest-grade tungsten deposits, is expected
to supply a significant portion of global non-China tungsten production upon reaching full capacity, directly addressing critical supply
vulnerabilities highlighted by recent U.S. defense procurement bans and export restrictions by China. With established operations in
Portugal and additional projects in Spain and the United States, Almonty is strategically aligned to meet rapidly rising demand from
Western allies committed to supply-chain security and defense readiness. To learn more, please visit https://almonty.com.
Forward-Looking Statements
This news release contains “forward-looking
statements” and “forward-looking information” within the meaning of applicable securities laws. All statements, other
than statements of present or historical facts, are forward-looking statements. Forward-looking statements involve known and unknown risks,
uncertainties and assumptions and accordingly, actual results could differ materially from those expressed or implied in such statements.
You are hence cautioned not to place undue reliance on forward-looking statements. Forward-looking statements are typically identified
by words such as “plan”, “development”, “growth”, “continued”, “intentions”,
“expectations”, “emerging”, “evolving”, “strategy”, “opportunities”, “anticipated”,
“trends”, “potential”, “outlook”, “ability”, “additional”, “on track”,
“prospects”, “viability”, “estimated”, “reaches”, “enhancing”, “strengthen”,
“target”, “believes”, “next steps” or variations of such words and phrases or statements that certain
actions, events or results “may”, “could”, “would”, “might” or “will” be taken,
occur or be achieved.
Forward-looking statements in this news release include,
but are not limited to, statements concerning the Company joining the Large-Cap Russell 1000® Index, as well as the Broad-Market Russell
3000® Index, at the conclusion of the 2026 Russell indexes reconstitution. Forward-looking statements are based upon certain assumptions
and other important factors that, if untrue, could cause actual results to be materially different from future results expressed or implied
by such statements. There can be no assurance that forward-looking statements will prove to be accurate.
Forward-looking statements are also subject to risks
and uncertainties facing the Company’s business, including, without limitation, the Company joining the Large-Cap Russell 1000®
Index, as well as the Broad-Market Russell 3000® Index, at the conclusion of the 2026 Russell indexes reconstitution as well as the
risks identified in the Company’s annual information form for the year ended December 31, 2025 dated March 18, 2026 and in the Company’s
management’s discussion and analysis dated May 11, 2026 for the three months ended March 31, 2026 and 2025. Although Almonty has
attempted to identify important factors that could cause actual results, level of activity, performance or achievements to differ materially
from those contained in forward-looking statements, there may be other factors that could cause results, level of activity, performance
or achievements not to be as anticipated, estimated or intended. There can be no assurance that forward-looking statements will prove
to be accurate, and even if events or results described in the forward-looking statements are realized or substantially realized, there
can be no assurance that they will have the expected consequences to, or effects on, Almonty. Accordingly, readers should not place undue
reliance on forward-looking statements and are cautioned that actual outcomes may vary.
Investors are cautioned against attributing undue
certainty to forward-looking statements. Almonty cautions that the foregoing list of material factors is not exhaustive. When relying
on Almonty’s forward-looking statements and information to make decisions, investors and others should carefully consider the foregoing
factors and other uncertainties and potential events. Almonty has also assumed that material factors will not cause any forward-looking
statements and information to differ materially from actual results or events. However, the list of these factors is not exhaustive and
is subject to change and there can be no assurance that such assumptions will reflect the actual outcome of such items or factors.
THE FORWARD-LOOKING INFORMATION CONTAINED IN THIS
NEWS RELEASE REPRESENTS THE EXPECTATIONS OF ALMONTY AS OF THE DATE OF THIS NEWS RELEASE AND, ACCORDINGLY, IS SUBJECT TO CHANGE AFTER SUCH
DATE. READERS SHOULD NOT PLACE UNDUE IMPORTANCE ON FORWARD-LOOKING INFORMATION AND SHOULD NOT RELY UPON THIS INFORMATION AS OF ANY OTHER
DATE. WHILE ALMONTY MAY ELECT TO, IT DOES NOT UNDERTAKE TO UPDATE THIS INFORMATION AT ANY PARTICULAR TIME, WHETHER AS A RESULT OF NEW
INFORMATION, FUTURE EVENTS OR OTHERWISE, EXCEPT AS REQUIRED IN ACCORDANCE WITH APPLICABLE LAWS.
Company
Lewis Black
Chairman, President & CEO
(647) 438-9766
info@almonty.com
Investor Relations
Lucas A. Zimmerman
Managing Director
MZ Group - MZ North America
(949) 259-4987
ALM@mzgroup.us
www.mzgroup.us