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Metallica Metals Engages Geophysical Contractor to Complete Airborne Electromagnetic Survey over Its GOLD-Silver and PGM Properties in the Thunder BAY Mining District

Exploration Programs

METALLICA METALS ENGAGES GEOPHYSICAL CONTRACTOR TO COMPLETE

AIRBORNE ELECTROMAGNETIC SURVEY OVER ITS GOLD-SILVER AND PGM

PROPERTIES IN THE THUNDER BAY MINING DISTRICT

Vancouver, British Columbia – March 9, 2021 – Metallica Metals Corp. (CSE: MM) (OTC: MTALF)

(FWB: SY7P) (the “Company” or “Metallica Metals”) is pleased to announce that it has engaged Expert

Geophysics Limited (“ EGL”) of Newmarket, Ontario to complete an airborne Mobile MagnetoTellurics

(“MobileMT”) geophysical survey over its exploration properties in the Thunder Bay Mining District, which

include the Sammy Ridgeline and Richview Pine PGM projects , and the Starr gold -silver project . The

airborne MobileMT survey will acquire approximately 2,557 line-km of geophysical data and commence

in April 2021 once the necessary permits are in place and EGL have mobilized to the project areas.

Paul Ténière, CEO and Director of Metallica Metals, commented, “The Company is excited to commence

exploration work on its gold -silver and PGM properties in the Thunder Bay Mining District and pleased

that EGL will be able to mobilize to the properties in early April prior to the busy summer field season. EGL

was chosen after a competitive bidding process and able to complete the airborne MobileMT survey in a

cost-effective manner and much earlier than other geophysical contractors. The results of this airborne

survey will aid in the selection of exploration targets and drill hole locations for all three properties during

the upcoming field season.”

The airborne survey will collect magnetic data, which will be utilized to generate a structural map of the

Company’s projects, as well as resistivity/conductivity data, which will be utilized to generate targets at

depth that may be related to the accumulation of metallic minerals. Both of these geophysical tools, in

conjunction with compiled historical data, will be invaluable in planning for the Company’s maiden drilling

program.

Airborne MobileMT Electromagnetic Survey Details

According to EGL, MobileMT is the most advanced generation of airborne audio frequency magnetic

(AFMAG) technology. EGL’s MobileMT system utilizes naturally occurring electromagnetic fields in the

frequency range of 25 Hz – 20,000 Hz and combines the latest advances in electronics, airborne system

design, and sophisticated signal processing techniques. Through the audio -magnetotelluric principles,

advanced engineering design, and mathematical solutions, MobileMT delivers geoelectrical information

from a shallow to >1 km depth range with high spatial (lateral and in -depth) and resistivity resolution.

However, the objective of these surveys is high resolution resistivity imaging from surface to 1 km depth.

An airborne bird, towed by an AStar 350 BA helicopter, will measure variations of the magnetic field in

the air with three orthogonal induction coils, while a ground station will measure variations of the electric

field in two orthogonal directions with four pairs of electrodes. The ratio of the magnetic field magnitude

and the electric field magnitude provides analytic al parameters in selected bands of frequencies.

Advanced noise processing technique of both electronic and signal processing levels ensures high data

quality. EGL will provide all necessary instrumentation for installation on the helicopter, as well as base

stations and field workstations (data processing system) to be used for quality control and processing of

the airborne data in the field.

The MobileMT system detects the resistivity contrasts of geolog ical structures and boundaries of any

shape and in any direction due to total field (three components) measurements. Airborne magnetic data

will also be collected simultaneously in addition to the airborne electromagnetic data. The MobileMT

system has be come an effective tool in detecting mineralized igneous intrusions (porphyry), fault ed

contacts and fault associated conductive zones , and alteration and dissemination halos accompanied by

mineralized zones containing Cu, Au, Ag , Ni, Co and other metallic elements. The airborne survey will

acquire approximately 2,557 line-km of geophysical data over the Company’s properties including:

• Approximately 843 line-km within a 100 m x 1 km grid over the Starr project area

• Approximately 368 line-km within a 200 m x 2 km grid over the Richview Pine project area

• Approximately 1,346 line-km within a 200 m x 2 km grid over the Sammy Ridgeline project area

Final data processing and interpretation, colour imaging, and mapping will be performed at EGL’s offices

in Newmarket with final deliverables ready within 8 weeks after the completion of the airborne survey.

Qualified Person Statement:

All scientific and technical information contained in this news release was prepared and approved by Paul

Ténière, M.Sc., P.Geo., CEO and Direc tor of Metallica Metals Corp., who is a Qualified Person as defined

in NI 43-101.

On behalf of the Board of Directors

METALLICA METALS CORP.

Paul Ténière, M.Sc., P.Geo.

CEO and Director

[email protected]

Head Office:

Suite 810 – 789 West Pender Street

Vancouver, BC V6C 1H2

Ph: (604) 687-2038

Toronto Office:

Suite 401 – 217 Queen Street West

Toronto, ON M5V 0R2

For more information, please visit the Company’s website at https://metallica-metals.com

Forward-looking Information Statement

This news release contains certain “forward -looking information” within the meani ng of applicable

securities law. Forward-looking information is frequently characterized by words such as “plan”, “expect”,

“project”, “intend”, “believe”, “anticipate”, “estimate” and other similar words, or statements that certain

events or conditions “may” or “will” occur. In particular, forward-looking information in this press release

includes, but is not limited to, statements with respect to the Company’s proposed acquisition, exploration

program and the expectations for the mining industry. Although we believe that the expectations reflected

in the forward-looking information are reasonable, there can be no assurance that such expectations will

prove to be correct. We cannot guarantee future results, performance or achievements. Consequently,

there is no representation that the actual results achieved will be the same, in whole or in part, as those

set out in the forward-looking information.

Forward-looking information is based on the opinions and estimates of management at the date the

statements are made, and are subject to a variety of risks and uncertainties and other factors that could

cause actual events or results to differ materially f rom those anticipated in the forward -looking

information. Some of the risks and other factors that could cause the results to differ materially from

those expressed in the forward -looking information include, but are not limited to: general economic

conditions in Canada and globally; industry conditions, including governmental regulation and

environmental regulation; failure to obtain industry partner and other third party consents and approvals,

if and when required; the availability of capital on acceptable terms; the need to obtain required approvals

from regulatory authorities; stock market volatility; liabilities inherent in water disposal facility

operations; competition for, among other things, skilled personnel and supplies; incorrect assessments of

the value of acquisitions; geological, technical, processing and transportation problems; changes in tax

laws and incentive programs; failure to realize the anticipated benefits of acquisitions and dispositions;

and the other factors. Readers are cautioned that this list of risk factors should not be construed as

exhaustive.

The forward-looking information contained in this news release is expressly qualified by this cautionary

statement. We undertake no duty to update any of the forward -looking informati on to conform such

information to actual results or to changes in our expectations except as otherwise required by applicable

securities legislation. Readers are cautioned not to place undue reliance on forward-looking information.

Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is defined in

the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of

this release.