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DeepRock Minerals Acquires Additional 6,600 Hectares to Expand Lithium Portfolio in Minas Gerais, Brazil

Mergers & Acquisitions

Page 1 of 3 | DeepRock Minerals Inc. | #1518 – 800 West Pender St., Vancouver, BC V6C 2V6

DeepRock Minerals Acquires Additional 6,600 Hectares to Expand

Lithium Portfolio in Minas Gerais, Brazil

VANCOUVER, CANADA, September 26, 2023 – DeepRock Minerals Inc. (the “Company” or

“DeepRock”) (CSE: “DEEP”), is pleased to announce it has entered into an option agreement to acquire a

100% interest in the Galileia Lithium Property (the “ Galileia Property”) with ANTARES MINERAIS

ENERGÉTICOS LTDA (the “Optionor” or (Antares”), a limited company incorporated and existing under

the laws of Brazil (the “Optionor”).

The Galileia Property covers 6,600 hectares comprising 4 exploration permits and is in Brazil’s Minas

Gerais State, a mining-friendly jurisdiction. The geology shows the presence of pegmatitic bodies formed

during the Brasiliano age, associated with the São Tomé Formation and the Rio Doce Group, which are

common geological units in south -eastern Brazil. These geological units are notable for their association

with critical minerals, including lithium, niobium, tantalum, beryllium, and rare earth elements. Among

these minerals, spodumene stands out as a key lithium-bearing mineral.

These pegmatite bodies also extend into the Galiléia Tonalite and Palmital Granodiorite, as well as various

granitic rock formations. They occupy discordant fractures and typically have a thickness of a few metres.

In schist ose hosts these pegmatites exhibit medium to large dimensions, lenticular shapes, and zoning

patterns. Tourmalines, feldspar, and muscovite features are commonly associated with these formations.

A recent surface sampling program conducted on the Galileia Property by Antares detected lithium (Li)

along with elements like rubidium, cesium, strontium, tantalum, and beryllium. These findings suggest the

potential presence of minerals such as spodumene, amblygonite, and lepidolite that may host lithium. The

highly weathered nature of surface soils and rocks in this region implies the possible leaching of elements

to deeper layers over time.

“In 2023 our strategic focus is on amassing a significant land portfolio in Brazil to give us the best chances

for a new lithium discovery. DeepRock has now assembled 9,600 hectares of prospective ground in Minas

Gerais, and we are very excited with th is progress and the relationships we are developing in Brazil ”

commented Andrew Lee, CEO of DeepRock Minerals. He added “DeepRock’s initial lithium project, the

Esperança Property , is located just 40 kilometres west of Sigma Lithium drawing substantial regional

attention. We remain committed to exploring the untapped lithium potential in Minas Gerais and will

continue positioning ourselves at the forefront in this endeavour.”

Page 2 of 3 | DeepRock Minerals Inc. | #1518 – 800 West Pender St., Vancouver, BC V6C 2V6

Figure 1. Location map of the Galileia Property in the state of Minas Gerais, Brazil

Summary of DeepRock’s option to acquire a 100% interest in the Galileia Property:

• A due diligence period ending October 21st, 2023;

• A cash payment of US$25,000 to be paid on or before October 20th, 2023 to execute an 18-month

exclusivity period to complete earn-in;

• Complete a minimum US$200,000 in exploration work in 12 months and a minimum

US$300,000 in total exploration expenditures during the option period;

• To complete the purchase of the permits, the Company will pay the Optionor US$300,000 in cash

or shares at the sole discretion of the Optionor;

• Additional compensation of US$800,000 (in cash or shares) with an inferred resource estimate of

5 million tonnes with a minimum average grade of 1.3% Li2O is established in a preliminary

economic assessment report (“PEA”);

• Further compensation of US$200,000 (in cash or shares) should the resource estimate be

expanded to 15 million tonnes or more with a minimum average grade of 1.3% Li2O; and

• The Optionor will retain a 2% net smelter royalty (“NSR”).

Doug Blanchflower (P.Geo.), a qualified person in accordance with National Instrument 43-101, has

reviewed and approved the technical content of this news release.

Page 3 of 3 | DeepRock Minerals Inc. | #1518 – 800 West Pender St., Vancouver, BC V6C 2V6

About DeepRock Minerals Inc.

DeepRock Minerals is a Canadian mineral exploration company headquartered in Vancouver, British

Columbia engaged in the acquisition, exploration, and development of mineral resource properties.

ON BEHALF OF THE BOARD OF DIRECTORS

Andrew Lee

Chief Executive Officer

[email protected]

778-302-2257

Cautionary Note Regarding Forward-Looking Statements:

Neither the Canadian Stock Exchange nor its Regulation Services Provider accepts responsibility for the

adequacy or accuracy of this release. This news release contains "forward-looking information" including

statements with respect to the future exploration performance of the Company. This forward -looking

information involves known and unknown risks, uncertainties and other factors which may cause the actual

results, performance or achievements of the Company to be materially different from any future results,

performance or achievements of the Company, expressed or implied by such forward -looking statements.

These risks, as well as others, are disclosed w ithin the Company's filing on SEDAR, which investors are

encouraged to review prior to any transaction involving the securities of the Company. The forward-looking

information contained herein is provided as of the date of this news release and the Company disclaims

any obligation, other than as required by law, to update any forward -looking information for any reason.

There can be no assurance that forward -looking information will prove to be accurate and the reader is

cautioned not to place undue reliance on such forward-looking information.