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Lion One Announces Start of Phase 1 Plant Expansion from 300 TPD to 400 TPD with Filter Press Upgrade

Corporate Updates

Lion One Announces Start of Phase 1 Plant

Expansion from 300 TPD to 400 TPD with Filter

Press Upgrade

North Vancouver, British Columbia--(Newsfile Corp. - July 21, 2026) -

Lion One Metals Limited

(TSXV: LIO) (OTCQX: LOMLF) ("Lion One" or the "Company

") is pleased to announce the start of

Phase 1 of the Company's phased Mill Expansion project to 700 TPD at it's 100% owned Tuvatu Gold

Mine in Fiji. Phase 1 consists of the Filtered Tailings Expansion Project and is anticipated to increase

overall plant capacity from 300 TPD to 400 TPD once complete.

Highlights of Phase 1 Plant Expansion

:

Double filtration capacity at Tuvatu processing plant

Remove primary bottleneck from processing operations

Increase plant capacity from 300 TPD to 400 TPD

Increase production by an estimated 2,100 oz of gold per annum

Capital expenditure of C$1.9M

Estimated additional revenue of C$11.8M per year at current gold price

Achieve 3-month payback and significant ongoing benefits

Targeted completion date by end of Q1 2027

The Tuvatu processing plant has a nominal capacity of 300 TPD. The Tuvatu Mill Expansion Project is

designed to increase plant capacity from 300 TPD to 700 TPD and will be constructed in phases with a

total estimated capital cost of C$13,500,000.

Phase 1 of the 700 TPD expansion is now in progress and consists of the Filtered Tailings Expansion

Project, which is designed to double the filtration capacity at the plant. The filtration circuit at Tuvatu has

been identified as the primary bottleneck for processing operations and currently consists of two filter

presses. The Filtered Tailings Expansion Project includes the addition of two new filter presses, one

filter feed tank, two filter feed pumps, associated structural and piping modifications, and one additional

tailings truck. Once complete, the project is anticipated to

increase nominal mill capacity

substantially from 300 TPD to 400 TPD

. This increase in production is anticipated to

generate an

additional 2,100 oz of gold per year

based on a minimal incremental gold grade of 3 g/t.

The overall cost for the Filtered Tailings Expansion Project is C$1,900,000, with additional incremental

operating costs of C$230,000 annually. At US$4,000 per ounce of gold, the increase in production to

400 TPD represents approximately

C$11,800,000 in additional revenue per year for the Company

.

After accounting for operating costs,

the project is expected to achieve payback within 3 months

of operation,

with significant ongoing annual benefits.

Design and construction activities have begun on the Filtered Tailings Expansion Project. The new filter

presses will be identical to the filter presses currently in operation at Tuvatu thereby ensuring

commonality of component parts and operating procedures. Construction of the filtration expansion

project is anticipated to take 6 to 9 months, with a target completion date by the end of Q1 CY2027. No

additional mining or processing equipment is needed to support the increase in production to 400 TPD.

Lion One President and CEO Ian Berzins stated: "We're very excited to start Phase 1 of our mill

expansion project. The filter press expansion is a key component of the expansion to 700 TPD and it will

have an immediate impact on our production capacity once complete. The economics of the project are

very strong with only a 3-month payback period. It's very rare to have a capital project with such a

significant impact to also have such a short payback period, so we're very excited to start this project

and look forward to its completion in early 2027."

Figure 1. Tuvatu Filtration System.

Left: Two filter presses currently in operation at Tuvatu. Right:

Filter press water filtrate, which is recycled back to the processing facility.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2178/305923_efc0ab3674bcf97f_001full.jpg

Corporate Update

The Company also announces the appointment of Shayla Forster as Corporate Secretary. Ms. Forster

has extensive experience in providing corporate secretarial, governance, compliance, facilitating

financings and disclosure consulting services to numerous publicly listed issuers, including companies

listed on the TSX Venture Exchange, Canadian Securities Exchange and OTCQB.

Qualified Persons Statement

In accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-

101"), William J. Witte, P.Eng., Principal Advisor to the Company, is the Qualified Person for the

Company and has reviewed and approved the technical and scientific content of this news release.

Lion One Laboratories / QAQC

Lion One adheres to rigorous QAQC procedures above and beyond basic regulatory guidelines in

conducting its drilling, sampling, testing, and analyses. The Company operates its own geochemical

assay laboratory and its own fleet of diamond drill rigs using PQ, HQ and NQ sized drill rods.

Diamond drill core samples are logged by Lion One personnel on site. Exploration diamond drill core is

split by Lion One personnel on site, with half core samples sent for analysis and the other half core

remaining on site. Grade control diamond drill core is whole core assayed. Core samples are delivered

to the Lion One Laboratory for preparation and analysis. All samples are pulverized at the Lion One lab

to 85% passing through 75 microns and gold analysis is carried out using fire assay with an AA finish.

Samples that return grades greater than 10.00 g/t Au are re-analyzed by gravimetric method, which is

considered more accurate for very high-grade samples.

Duplicates of 5% of samples with grades above 0.5 g/t Au are delivered to ALS Global Laboratories in

Australia for check assay determinations using the same methods (Au-AA26 and Au-GRA22 where

applicable). ALS also analyses 33 pathfinder elements by HF-HNO3-HClO4 acid digestion, HCl leach

and ICP-AES (method ME-ICP61). The Lion One lab can test a range of up to 71 elements through

Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) but currently focuses on a suite

of 26 important pathfinder elements with an aqua regia digest and ICP-OES finish.

About Lion One Metals Limited

Lion One Metals is an emerging Canadian gold producer headquartered in North Vancouver BC, with

new operations established in late 2023 at its 100% owned Tuvatu Alkaline Gold Project in Fiji. The

Tuvatu project comprises the high-grade Tuvatu Alkaline Gold Deposit, the Underground Gold Mine, the

Pilot Plant, and the Assay Lab. The Company also has an extensive exploration license covering the

entire Navilawa Caldera, which is host to multiple mineralized zones and highly prospective exploration

targets.

On behalf of the Board of Directors,

Ian Berzins, Chief Executive Officer, President, and Board Member

Contact Information

Email:

[email protected]

Phone: 1-855-805-1250 (toll free North America)

Website:

www.liononemetals.com

Neither the TSX-V nor its Regulation Service Provider accepts responsibility or the adequacy or

accuracy of this release

This press release may contain statements that may be deemed to be "forward-looking statements"

within the meaning of applicable Canadian securities legislation. All statements, other than

statements of historical fact, included herein are forward-looking information. Generally, forward-

looking information may be identified by the use of forward-looking terminology such as "plans",

"expects" or "does not expect", "proposed", "is expected", "budget", "scheduled", "estimates",

"forecasts", "intends", "anticipates" or "does not anticipate", or "believes", or variations of such words

and phrases, or by the use of words or phrases which state that certain actions, events or results may,

could, would, or might occur or be achieved. This forward-looking information reflects Lion One Metals

Limited's current beliefs and is based on information currently available to Lion One Metals Limited

and on assumptions Lion One Metals Limited believes are reasonable. These assumptions include,

but are not limited to, the actual results of exploration projects being equivalent to or better than

estimated results in technical reports, assessment reports, and other geological reports or prior

exploration results. Forward-looking information is subject to known and unknown risks, uncertainties

and other factors that may cause the actual results, level of activity, performance, or achievements of

Lion One Metals Limited or its subsidiaries to be materially different from those expressed or implied

by such forward-looking information. Such risks and other factors may include, but are not limited to:

the stage development of Lion One Metals Limited, general business, economic, competitive,

political and social uncertainties; the actual results of current research and development or

operational activities; competition; uncertainty as to patent applications and intellectual property

rights; product liability and lack of insurance; delay or failure to receive board or regulatory approvals;

changes in legislation, including environmental legislation, affecting mining, timing and availability of

external financing on acceptable terms; not realizing on the potential benefits of technology;

conclusions of economic evaluations; and lack of qualified, skilled labor or loss of key individuals.

Although Lion One Metals Limited has attempted to identify important factors that could cause actual

results to differ materially from those contained in forward-looking information, there may be other

factors that cause results not to be as anticipated, estimated, or intended. Accordingly, readers should

not place undue reliance on forward-looking information. Lion One Metals Limited does not undertake

to update any forward-looking information, except in accordance with applicable securities laws.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/305923