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LGO.TO ·

News release

Corporate Updates

Largo Reports Improved Q2 2025 Vanadium Production;

Storion Energy to Support 48 MWh Vanadium Flow

Battery Deployment in Texas

Q2 2025 and Other Highlights

e¢ V,Os; production of 2,256 tonnes (5.0 million Ibs!) in Q2 2025 vs. 2,689 tonnes produced in Q2 2024 and 74%

higher than 1,297 tonnes produced in Q1 2025

¢ Global recovery> of 84.9% in Q2 2025, a 14% increase over the global recovery” rate of 74.3% in Q2 2024 and

9% above the 77.8% averaged in Q1 2025

¢ Operational turnaround progressing as planned with improved mine access and mining rates, higher production

and stronger recovery rates; The Company remains on track to achieve 2025 V2Os production guidance

e V,Os equivalent sales of 1,807 tonnes (inclusive of 123 tonnes of purchased material) in Q2 2025 vs. 1,841

equivalent tonnes sold (inclusive of 128 tonnes of purchased material) in Q2 2024

e IImenite concentrate production of 8,149 tonnes in Q2 2025 vs. 8,624 tonnes in Q2 2024 and 32% higher than the

6,162 tonnes produced in Q1 2025; Ilmenite sales of 6,024 tonnes vs. 12,261 tonnes in Q2 2024

e Storion Energy signs strategic supply agreement with TerraFlow Energy to supply vanadium electrolyte and

battery stacks; Secures electrolyte lease for 48 MWh flow battery project in Texas, supported by Largo Physical

Vanadium’s unique electrolyte leasing model

TORONTO--(BUSINESS WIRE)--July 15, 2025--Largo Inc. ("Largo" or the "Company") (TSX: LGO) (NASDAQ: LGO)

today announces quarterly production of 2,256 tonnes of vanadium pentoxide (“V2Os’) equivalent and sales of 1,807 tonnes

in Q2 2025, highlighting improved production and ongoing turnaround execution.

Daniel Tellechea, Interim CEO of Largo, stated: “Our second quarter results reflect steady progress under the Companys

operational turnaround plan, with improved production volumes, higher recoveries, and enhanced mine access to support

future production. While we are encouraged by these developments, we know there is still more work ahead to further reduce

costs, improve efficiencies and increase margins across our operations. We remain focused on safely executing our plan to

meet our production and sales targets for the year, while also addressing liquidity constraints stemming from lower

production in the first quarter by working closely with our suppliers and service providers.”

He continued: “Jn parallel, Storion Energy’s new supply agreement with TerraFlow Energy and electrolyte lease for a 48

MWh vanadium flow battery deployment in Texas represent an important step in advancing Largo '’s investment strategy in the

U.S. energy storage sector. The recently announced supply agreement with TerraFlow is expected to create a meaningful

growth opportunity by leveraging Storion’s battery stack development and electrolyte production capabilities as well as

access to Largo Physical Vanadium s unique electrolyte leasing model, providing an additional pathway for long-term value

creation for Largo through its investment in this sector.”’

Maracas Menchen Mine Operational and Sales Results

Q2 2025 Q1 2025 Q2 2024

Total Mined — Dry Basis (tonnes) 4,261,626 3,933,242 3,216,930

Total Waste Moved — Dry Basis (tonnes) 3,775,939 3,486,628 2,648,344

Total Ore Mined (tonnes) 485,687 446,614 568,588

Ore Grade Mined - Effective Grade (%)" 0.51 0.41 0.69

Concentrate Produced (tonnes) 89,792 53,245 115,075

Grade of Concentrate (“%) 2.90 2.86 2.95

Global Recovery (%)° 84.9 77.8 743

V,0<5 produced (Flake + Powder) (tonnes) 2,256 1,297 2,689

V0; produced (equivalent pounds) ! 4,973,623 2,852,778 5,928,223

Total VO; equivalent sold (tonnes) 1,807 2,046 1,841

Produced V0; equivalent sold (tonnes) 1,684 1,892 1,713

Purchased V,05 equivalent sold (tonnes) 123 154 128

Iimenite concentrate produced (tonnes) 8,149 6,162 8,625

Ilmenite concentrate sold (tonnes) 6,024 8,647 12,261

Q2 2025 Production and Sales Overview

e V2Os production was 2,256 tonnes in Q2 2025, with monthly output of 481 tonnes in April, 835 tonnes in May, and 940

tonnes in June. The global recovery? rate averaged 84.9% for the quarter, increasing steadily from 79.3% in April to

88.0% in June.

e The Company continued to implement key operational measures under its turnaround plan during Q2 2025. Mine

pushback activities and roadway improvements were prioritized to secure access to larger benches on the 190/180

levels, including the development of a new eastern access to the Campbell Pit. These actions are expected to reduce

average haul distances and provide independent access to deeper portions of the mine.

e The Company’s mining contractor delivered improved drilling, blasting, load/haul performance, and bench preparation

during the quarter, supported by enhanced road and access maintenance. With the wider open bench area now

accessible on the 180 level, larger mining fronts and production blasts are enabling increased production and improved

grades. Completion of this development work is expected to support consistent access and achievement of future

production targets.

e Total material mined (dry basis) increased by 32% in Q2 2025 to 4.3 million tonnes, compared to 3.2 million tonnes in

Q2 2024, and rose 8% from Q1 2025 (3.9 million tonnes). Total ore mined in Q2 2025 was 485,687 dry tonnes,

representing a 15% decrease from the 568,588 tonnes mined in Q2 2024 but a 9% increase from the 446,614 tonnes

mined in Q1 2025. The effective grade of 0.51% was 26% lower year-over-year but 24% higher than Q1 2025 (0.41%).

Total waste moved increased by 43% in Q2 2025 to 3.8 million tonnes, compared to 2.7 million tonnes in Q2 2024, and

was 8% higher than the 3.5 million tonnes moved in Q1 2025.

e V Os equivalent sales were 1,807 tonnes in Q2 2025, including 123 tonnes of purchased material, representing a 2%

decrease compared to 1,841 tonnes sold in Q2 2024. Ilmenite sales were 6,024 tonnes in Q2 2025 vs.12,261 tonnes in

Q2 2024. The year-over-year decrease in sales primarily reflects lower production volumes in Q1 2025, as sales

generally align with production from the preceding quarter.

Storion Signs Agreement to Supply Vanadium Electrolyte and Stacks for TerraFlow; Secures 48 MWh Flow Battery

Electrolyte Lease

Storion Energy LLC (“Storion’”’), a 50:50 joint venture between the Company’s subsidiary, Largo Clean Energy Corp., and

affiliates of Stryten Energy LLC, has signed a strategic supply agreement with TerraFlow Energy Operating LLC

(“TerraFlow’’) to advance the adoption of vanadium flow batteries in the United States. The collaboration will leverage

Storion’s ability to produce high-quality vanadium electrolyte and its expertise in stack design and manufacturing to help

scale TerraFlow’s skid-based architecture. Together, the companies aim to enhance performance, improve manufacturing

efficiency, and deliver safe, scalable storage that meets the demands of modern power grids.

As part of this collaboration, Storion has also secured a vanadium electrolyte lease for TerraFlow’s 48 MWh Bellville flow

battery project in Texas, which, when completed, will be one of the largest flow battery installations in the state. The project

will be supported by Largo Physical Vanadium Corp. (“LPV”’), in which the Company holds a 65.7% interest and for which

Storion acts as safekeeper of LPV’s vanadium assets. LPV’s unique leasing platform removes the need for customers to

purchase vanadium outright, lowering upfront capital costs and making long-duration storage more cost-competitive. LPV

expects to the lease to commence in early 2027, when the electrolyte is deployed.

The strategic supply agreement with TerraFlow is also expected to support additional flow battery deployments in the future,

creating further demand for leased vanadium and strengthening Largo’s participation in advancing U.S. energy resilience and

the long-duration storage market.

About Largo

Largo is a globally recognized supplier of high-quality vanadium and ilmenite products, sourced from its world-class

Maracas Menchen Mine in Brazil. As one of the world’s largest primary vanadium producers, Largo produces critical

materials that empower global industries, including steel, aerospace, defense, chemical, and energy storage sectors. The

Company is committed to operational excellence and sustainability, leveraging its vertical integration to ensure reliable

supply and quality for its customers.

Largo is also strategically invested in the long-duration energy storage sector through its 50% ownership of Storion Energy, a

joint venture with Stryten Energy focused on scalable domestic electrolyte production for utility-scale vanadium flow battery

long-duration energy storage solutions in the U.S.

Largo’s common shares trade on the Nasdaq Stock Market and on the Toronto Stock Exchange under the symbol "LGO". For

more information on the Company, please visit www.largoinc.com.

Cautionary Statement Regarding Forward-looking Information:

This press release contains “forward-looking information” and “forward-looking statements” within the meaning of

applicable Canadian and United States securities legislation. Forward-looking information in this press release includes, but

is not limited to, statements with respect to the timing and amount of estimated future production and sales; the future price of

commodities; the effect of tariffs on the Company's sales and other business; costs of future activities and operations,

including, without limitation, the effect of inflation and exchange rates; the effect of unforeseen equipment maintenance or

repairs on production; the ability to produce high purity V2O5 and V203 according to customer specifications; the extent of

capital and operating expenditures, the ability of the Company to make improvements on its current short-term mine plan;

and the impact of global delays and related price increases on the Company's global supply chain and future sales of

vanadium products.

The following are some of the assumptions upon which forward-looking information is based: that general business and

economic conditions will not change in a material adverse manner, demand for, and stable or improving price of V2O5 and

other vanadium products, ilmenite and titanium dioxide pigment; receipt of regulatory and governmental approvals, permits

and renewals in a timely manner, that the Company will not experience any material accident, labour dispute or failure of

plant or equipment or other material disruption in the Company ’s operations at the Maracas Menchen Mine or relating to

Largo Clean Energy, specially in respect of the installation and commissioning of the EGPE project; the availability of

financing for operations and development; the availability of funding for future capital expenditures, the ability to replace

current funding on terms satisfactory to the Company; the ability to mitigate the impact of heavy rainfall; the reliability of

production, including, without limitation, access to massive ore, the Company's ability to procure equipment, services and

operating supplies in sufficient quantities and on a timely basis; that the estimates of the resources and reserves at the

Maracas Menchen Mine are within reasonable bounds of accuracy (including with respect to size, grade and recovery and

the operational and price assumptions on which such estimates are based); the accuracy of the Company's mine plan at the

Maracas Menchen Mine; that the Company’s current plans for ilmenite can be achieved; the Company 8s ability to protect and

develop its technology, the Company’ ability to maintain its IP; the competitiveness of the Company's product in an evolving

market; the Company’ ability to attract and retain skilled personnel and directors; the ability of management to execute

strategic goals; that the Company will enter into agreements for the sales of vanadium, ilmenite and TiO2 products on

favourable terms and for the sale of substantially all of its annual production capacity; and receipt of regulatory and

governmental approvals, permits and renewals in a timely manner.

Forward-looking statements can be identified by the use of forward-looking terminology such as “plans”, “expects” or

“does not expect”, “is expected”, “budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or “does not

anticipate”’, or “believes”, 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”, although not all forward-looking

statements include those words or phrases. In addition, any statements that refer to expectations, intentions, projections,

guidance, potential or other characterizations of future events or circumstances contain forward-looking information.

Forward-looking statements are not historical facts nor assurances of future performance but instead represent

management's expectations, estimates and projections regarding future events or circumstances. Forward-looking statements

are based on our opinions, estimates and assumptions that we considered appropriate and reasonable as of the date such

information is stated, subject to known and unknown risks, uncertainties and other factors that may cause the actual results,

level of activity, performance or achievements of Largo to be materially different from those expressed or implied by such

forward-looking statements, including but not limited to those risks described in the annual information form of Largo and in

its public documents filed on www.sedarplus.ca and available on www.sec.gov from time to time. Forward-looking statements

are based on the opinions and estimates of management as of the date such statements are made. Although management of

Largo has attempted to identify important factors that could cause actual results to differ materially from those contained in

forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended.

There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ

materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forwara-

looking statements. Largo does not undertake to update any forward-looking statements, except in accordance with

applicable securities laws. Readers should also review the risks and uncertainties sections of Largo s annual and interim

MDA which also apply.

Trademarks are owned by Largo Inc.

! Conversion of tonnes to pounds, I tonne = 2,204.62 pounds or Ibs.

2 Effective grade represents the percentage of magnetic material mined multiplied by the percentage of V2O5 in the magnetic concentrate.

3 Global recovery is the product of crushing recovery, milling recovery, kiln recovery, leaching recovery and chemical plant recovery.

Contacts

For further information:

Investor Relations

Alex Guthrie

Director, Investor Relations

+1.416.861.9778

[email protected]