FL.V · 2022-03-01 12:00:00

Frontier Lithium successfully converts Inferred Resource to 14 million tonnes of Indicated Resource on the Spark Deposit

Resource Estimates

Frontier Lithium successfully converts Inferred

Resource to 14 million tonnes of Indicated

Resource on the Spark Deposit

Highlights

Resource estimate update for Spark Pegmatite includes 14 million tonnes averaging 1.40%

O in the Indicated category;

Includes another 18 million tonnes averaging 1.37% Li

O in the Inferred category;

The Spark lithium deposit remains open along strike and down dip.

SUDBURY, ON

March 1, 2022

/CNW/ -

Frontier Lithium Inc.

(TSXV: FL) (FRA: HL2) (OTCQX:

LITOF)

(the "Company" or "Frontier")

is pleased to report an updated mineral resource estimate

for the Spark deposit, the second delineated premium spodumene-bearing lithium deposit on the

PAK Lithium Project "Project". The resource estimation has been prepared by BBA E&C Inc. Table 1

is a summary of the mineral resource estimate.

"Due in part to the predictability of the in-fill drilling completed in 2021, as anticipated, most of the

Inferred from the previous Resource Estimate is now in the higher confidence levels of Indicated",

commented

Garth Drever

, Vice President Exploration of Frontier Lithium. "We are certainly pleased

to have increased the overall size of the Spark Pegmatite." added Drever.

Table 1: Summary of Mineral Resource Estimate for Spark Pegmatite

Cut-Off

Resource Category

Tonnes (t)

O (%)

(ppm)

O (%)

(ppm

O (%)

SnO

(ppm)

Lithology

0.70% Li

Indicated

14,414,000

1.40

0.02

114

0.25

Aplite/LIZ

Inferred

18,118,000

1.37

0.02

105

0.23

Aplite/LIZ

Mineral Resource Estimate Notes

Mineral Resources were prepared in accordance with NI 43-101 and the CIM Definition

Standards (2014). Mineral resources that are not mineral reserves do not have demonstrated

economic viability. This estimate of mineral resources may be materially affected by

environmental, permitting, legal, title, taxation, sociopolitical, marketing, or other relevant

issues.

Open pit Mineral Resources are reported at a cut-off grade of 0.70 % Li2O that is based on a

spodumene concentrate prices of

US$800

/tonne and an exchange rate of 1.29.

Appropriate mining costs, processing costs, metal recoveries, and inter ramp pit slope angles

were used by BBA to generate the pit shell.

Rounding may result in apparent summation differences between tonnes, grade, and

contained metal content.

Tonnage and grade measurements are in metric units.

A bulk density factor of 2.72 was applied to the pegmatite based on 437 measurements.

Modeling was performed using Datamine Studio RM software with grades estimated using ordinary

kriging (OK) interpolation methodology. Samples were composited at 2.0 metre down hole.

Assessment of composites indicated no capping was required on the Li

O grades. Block grades

were estimated on a multi pass basis with a minimum and maximum number of composites and

maximum number of composites per drillhole required for each estimation pass. Block size is 2.5

metre by 2.5 metre (y) by 2.5 metre (z).

Additional information about the Mineral Resource modeling methodology will be documented in the

upcoming NI 43-101 technical report (the "Technical Report").

The Spark pegmatite, discovered in

September 2018

and delineated in 2019 with two drill programs

(9 holes totaling

2,500m

and 12 channels totaling

288.4m

). During 2021, two more drill programs

totaling 11 holes (

3,269m

) and

54 m

of channel sampling with objectives of upgrading the largely

Inferred mineral resource category to Indicated mineral resource were completed. The results from

the channels and drilling have been previously reported.

Geological logging of channels and drill core combined with multi-element geochemistry indicates a

high degree of compositional homogeneity throughout the deposit. The pegmatite consists primarily

of spodumene-bearing sodic aplite which is typically fine to medium grained, light grey to greenish

grey locally with coarser zonations consisting of megacrystic feldspar, fine to coarse-grained light

grey to white spodumene, grey quartz and variable amounts of muscovite. The coarser grained

zones are similar in appearance and composition to the LIZ (Lower Intermediate Zone) at the PAK

deposit 2.3 km to the southwest.

Due Diligence

All scientific and technical information in this release has been reviewed and approved by

Todd

McCracken

, P.Geo., Director – Mining & Geology –

Central Canada

, BBA E&C Inc., the qualified

person (QP) and

Garth Drever

, P.Geo., VP Exploration for Frontier Lithium Inc. the qualified person

(QP) under the definitions established by National Instrument 43-101. Under Frontier's QA/QC

procedures, all drilling was completed by Chenier Drilling Ltd. of

Val Caron, ON

using thin-walled

BTW drill rods (4.2 cm core diameter) and a Reflex ACT III oriented core system. Using the Reflex

system, the drill core was oriented and marked as it was retrieved at the drill. The core was boxed

and delivered to the Frontier core shack where it was examined, geologically logged and marked for

sampling. The core was photographed prior to sampling. Using a rock saw, the marked sample

intervals were halved with one halve bagged for analysis. Sample blanks along with lithium, rubidium

and cesium certified reference material was routinely inserted into the sample stream in accordance

with industry recommended practices. Field duplicate samples were also taken in accordance with

industry recommended practices. The samples were placed in poly sample bags and transported to

Red Lake

by Frontier employees and then shipped to AGAT Laboratories Ltd. (AGAT) in

Mississauga, ON

for quantitative multi-element analysis. AGAT is an ISO accredited laboratory. The

core is stored on site at the Pakeagama Lake exploration camp.

About Frontier Lithium

Frontier Lithium is a preproduction business that is targeting to become a manufacturer of battery-

quality lithium materials to support electric vehicle and battery supply chains in

North America

Frontier owns the PAK Lithium Project which contains one of

North America's

highest-grade, large-

tonnage hard-rock lithium resources in the form of a rare low-iron spodumene. The project continues

to have significant exploration upside with potential to increase the lithium resource. The Company is

a pure-play lithium development opportunity with the largest land position in the Electric Avenue, a

premium lithium mineral district located in

Northern Ontario

About the PAK Lithium Project

The PAK Lithium Project contains a tier one lithium resource in

North America

and is one of the

global top three premium resources by quality. A 2021 preliminary economic assessment (National

Instrument 43-101 technical report titled "Pak Property" by BBA E&C Inc., issued on

April 5, 2021

)

delivered a fully integrated lithium operation from the resource to achieve downstream conversion

plan for production of battery-quality lithium salts. The study resulted in an after-tax net present

value (discounted at 8 per cent) of

$974-million

(U.S.) with a 21-per-cent internal rate of return. The

Project encompasses 26,774 hectares at the south end of

Ontario's

Electric Avenue, the largest

land package hosting premium lithium-bearing pegmatites in

Ontario

. The Project is supported by a

measured and indicated resource of 10.49 million tonnes (Mt) averaging 1.78 per cent lithium oxide

(Li

O) and inferred resource of 18.48 Mt averaging 1.45 per cent Li

O.The Project covers 65

kilometres of the Electric Avenue's length and remains largely unexplored; however, since 2013, the

company has delineated two premium spodumene-bearing lithium deposits (PAK and Spark),

located 2.3 kilometres apart. Considerable exploration upside is supported on the Project through

two other spodumene-bearing discoveries: the Bolt pegmatite (located between the PAK and Spark

deposits), as well as the Pennock pegmatite (30 kilometres northwest of PAK Deposit within the

project claims).

Forward-looking statements

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. This release includes certain statements that may be deemed "forward-looking

statements". All statements in this release, other than statements of historical facts, that address

future production, reserve potential, exploration drilling, exploitation activities and events or

developments that the Company expects are forward-looking statements. Although the Company

believes the expectations expressed in such forward-looking statements are based on reasonable

assumptions, such statements are not guarantees of future performance and actual results or

developments may differ materially from those in the forward-looking statements. Factors that could

cause actual results to differ materially from those in forward looking statements include market

prices, exploitation and exploration successes, continued availability of capital and financing, and

general economic, market or business conditions. Investors are cautioned that any such statements

are not guarantees of future performance and those actual results or developments may differ

materially from those projected in the forward-looking statements. For more information on the

Company, Investors should review the Company's registered filings available at sedar.com.

Figure 1: Location Map showing project area and location of drill holes and channels on the Spark

Pegmatite (CNW Group/Frontier Lithium Inc.)

Figure 2: Compilation of the Spark Pegmatite (CNW Group/Frontier Lithium Inc.)

Figure : 3D Rendering of the Spark Pegmatite showing drill holes, channels wireframe and pit shell

used in the Resource Calculation (CNW Group/Frontier Lithium Inc.)

SOURCE

Frontier Lithium Inc.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/March2022/01/c3570.html

%SEDAR: 00008434E

For further information:

Company Contact Information: Bora Ugurgel, Manager, Investor

Relations, 2736 Belisle Drive Val Caron, ON. P3N 1B3 CANADA, T. +001 705.897.7622, F. +001

705.897.7618

CO: Frontier Lithium Inc.

CNW 10:16e 01-MAR-22

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