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Global Battery Metals Provides Leinster Lithium Drill Program Update Company Confirms Multiple Pegmatite Drill Core Intercepts at its Knockeen Prospect; Begins Shipping Samples to Lab

Exploration Programs

Global Battery Metals Provides Leinster Lithium Drill Program Update

Company Confirms Multiple Pegmatite Drill Core Intercepts at its Knockeen Prospect;

Begins Shipping Samples to Lab

June 7, 2023, Vancouver, British Columbia – Global Battery Metals Ltd. (the “Company” or “GBML”

or “Global Battery Metals”) (TSXV: GBML; OTCQB: REZZF; Frankfurt: REZ), a critical mineral

exploration company focused on growth -oriented lithium and battery metal projects, is pleased to

provide an update on its inaugural drilling campaign at the Leinster Lithium Project in Ireland.

Highlights:

• Multiple, pegmatite intercepts have been intersected in initial drill holes (see Figure 1)

• Surface geochemistry targets are being tested as part of current drilling campaign and already

providing strong corroborative proof of concept to GBML’s geological interpretation

• Successive holes will be targeting different parts of the anomalous deep overburden

geochemistry grid

• Company has started to transport pegmatite core samples to ALS Laboratories for analysis

“So far, our initial drill holes have delivered very promising pegmatite intercepts that have the on-site

teams excited,” said Michael Murphy, CEO of Global Battery Metals. “While there’s still more work

to accomplish, we are making good progress hitting close -to-surface pegmatite intercepts and

processing core for analysis. We will continue to follow what we are finding and optimize our drill

plans accordingly.”

Exploration and Drilling Update

Phase 1 of the Leinster Drill P rogram (see May 10, 2023 , press release) is focusing efforts on the

Knockeen Prospect and prospective lithium pegmatite trend targets including up to six potential dikes

that the Company believes are located proximal to the historically reported trenched bedrock

occurrence. The Drill Program has been approved under the government ’s appropriate assessment

screening process for up to 10 drill holes. No drilling has ever been carried out at this prospect

previously and hitting bedrock pegmatites in the first hole drilled is considered a major technical success

for the company. The project is being managed on the ground for the Company by exploration

contracting company Aurum Exploration Limited.

As previously noted, s ignificant sampling and mapping across the Knockeen Prospect has been

conducted, with the potential discovery of up to six LCT pegmatite dikes (see March 20, 2023, press

release) and the most recent assay results of 66 rock samples released by ALS Laboratories returning

Li2O% lithium contents ranging up to 3.75 % Li2O / 17,410 ppm Li (see Figure 2 and January 18, 2023,

press release).

Figure 1: Close up of drill core from

Hole 23-1597-01.

Figure 2: Spodumene pegmatite

grading 3.75% Li2O

Responsibility to the Environment

All mineral exploration activities in Ireland take place under the auspices of the GSRO, a division within

the Government Department of the Environment, Communications & Climate Change. Exploration is

governed under the framework of both Irish and EU legislation that has been implemented to ensure

that the environment is protected during exploratory work. Prospecting licence holders must comply

with all of the relevant legislation. The Company is pleased to confirm that it adheres to the highest

standards of good practice in relation to its ongoing exploration activities having completed a detailed

GSRO “Appropriate Assessment” process prior to commencement and which was reviewed, approved

and signed off by the appropriate oversight authorities.

For additional program details, please see the Company's Leinster Project Overview in addition to the

latest version of the Company’s Investor Presentation available for download from the GBML website

(www.gbml.ca).

Competent Person

All scientific and technical information in this announcement has been prepared under the supervision

of and reviewed and approved by EuroGeol Vaughan Williams , M.Sc., P.Geo., (Principal of Aurum

Exploration Services currently providing exploration services to GBML and to LRH Resources Limited

(“LRH”)), a “qualified person” within the meaning of National Instrument 43-101. Vaughan Williams

is also company secretary of LRH.

The Knockeen Prospect forms part of the Project exploration block, which is operated under an

exclusive option and earn-in agreement with Technology Minerals Plc (LSE: TM1), the first listed UK

company focused on creating a sustainable circular economy for battery metals, and its wholly owned

subsidiary LRH.

About the Leinster Lithium Project

The Project, located in th e counties of Wick low and South Carlow , in the Republic of Ireland, is

a lithium pegmatite project that consists of 16 prospecting license areas located SW of Dublin and is

adjacent to the Ganfeng Lithium/International Lithium Corporation Blackstairs Lithium Project.

Lithium mineralization has been confirmed across all Project areas explored to date, with the potential

discovery of up to six LCT pegmatite dikes and assay results of 66 rock samples released by ALS

Laboratories returning Li 2O% lithium contents ranging up to 3.75 % Li 2O / 17, 410 ppm Li at the

Knockeen Prospect. The Project’s maiden Drill Program, now underway, is permitted for up to 10 drill

holes.

About Global Battery Metals Ltd.

GBML is an international mineral exploration and development company with a focus on lithium and

other metals that comprise and support the rapid evolution to battery power. GBML currently maintains

economic interests in four battery metal projects: (1) an option to acquire up to a 90% in the drill-ready

Leinster Lithium Property in Ireland; (2) a 100 % interest in the drill -ready Lithium King P roperty in

Utah; (3) an option to acquire up to a 100% interest in the La Poile Lithium Project in Newfoundland;

and (4) a 55% stake in Peru-based Lara Copper Property, which has over 10,000 metres of drilling. As

previously disclosed, Minsur S.A., a Peruvian mining company, entered into an option agreement with

GBML and Lara Exploration Ltd. to acquire the Lara copper property for staged payments of USD$5.75

million. GBML will retain a 0.75% net smelter royalty. GBML's common shares are listed on the TSX

Venture Exchange (TSXV: GBML); Frankfurt Stock Exchange (FSE: REZ); and are quoted on the

OTC Markets (OTCQB: REZZF).

Global Battery Metals Ltd.

Michael Murphy BA, MBA, MSc., ICD

President & CEO

T: 604-649-2350

E: [email protected]

W: www.gbml.ca

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this

release.

Cautionary Statement Regarding “Forward-Looking” Information

This news release contains certain “forward -looking information” and “forward -looking statements”

(collectively “forward-looking statements”) within the meaning of applicable securities legislation. All

statements, other than statements of historical fact, included herein, without limitation, statements

relating the future operations and activities of the Company, are forward-looking statements. Forward-

looking statements are frequently, but not always, identified by words such as “expects”, “anticipates”,

“believes”, “intends”, “estimates”, “potential”, “possible”, and similar expressions, or statements that

events, conditions, or results “will”, “may”, “could”, or “should” occur or be achieved. Forward-looking

statements in this news release relate to, among other things, the Company’s exploration plans at the

Leinster Lithium Project, including the Drill Program. There can be no assurance that such statements

will prove to be accurate, and actual results and future events cou ld differ materially from those

anticipated in such statements. Forward-looking statements reflect the beliefs, opinions, and projections

on the date the statements are made and are based upon a number of assumptions and estimates that,

while considered reasonable by the Company, are inherently subject to significant business, economic,

competitive, political and social uncertainties and contingencies. Many factors, both known and

unknown, could cause actual results, performance, or achievements to be materially different from the

results, performance or achievements that are or may be expressed or implied by such forward-looking

statements and the parties have made assumptions and estimates based on or related to many of these

factors. Such factors include, without limitation, the ability to complete proposed exploration work, the

results of exploration, continued availability of capital, and changes in general economic, market and

business conditions, and the receipt of any required regulatory approvals . Readers should not place

undue reliance on the forward -looking statements and information contained in this news release

concerning these items. Readers are urged to refer to the Company's reports, publicly available through

the Canadian Securities Administr ators' System for Electronic Document Analysis and Retrieval

(SEDAR) at www.sedar.com for a more complete discussion of such risk factors and their potential

effects. The Company does not assume any obligation to update the forward -looking statements of

beliefs, opinions, projections, or other factors, should they change, except as require d by applicable

securities laws.