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Frontier Lithium successfully produces rare 7.2% Li2O "Technical Grade" Spodumene Concentrate with "Life of Mine" sample

Drill Results

Frontier Lithium successfully produces rare

7.2% Li2O "Technical Grade" Spodumene

Concentrate with "Life of Mine" sample

SUDBURY, ON

,

May 4, 2020

/CNW/ - Frontier Lithium Inc. (TSX.V: FL) (the "Company" or

"Frontier") is pleased to report positive metallurgical results from the PAK deposit composite sample

of ore, which is a rare, high grade spodumene deposit with low inherent iron, located in the Great

Lakes region of northwestern

Ontario

. The test work was carried out on a 400 kg sample targeting

a mineralogically representative "life of mine" master composite sample. The sample was assembled

with the objective of finalizing flowsheet design and to also confirm with a global user of

concentrates the suitability of the material to meet the most rigorous specifications of the global

lithium market. The metallurgical evaluation was undertaken by XPS Expert Process Solutions

("XPS"), a Glencore company, based in

Falconbridge, Ontario, Canada

.

Technical Grade 7.2% Li2O - Spodumene Concentrate (CNW Group/Frontier Lithium Inc.)

"This significant accomplishment is a critical milestone that greatly de-risks the PAK Lithium Project

and further enhances confidence for our company, partners and prospective customers," said

Trevor

Walker

, President and CEO of Frontier Lithium. "The potential to produce high-quality lithium

concentrates from a deposit in its entirety and not just from select zones is a characteristic

possessed by very few lithium resources around the globe. These results meet expectations from

the global industrial premium glass makers requiring rare technical grade spodumene concentrates.

Results consequently exceed chemical grade concentrate requirements for further refining to

produce chemicals like lithium hydroxide for the lithium-ion battery market. This is a timely

development for Frontier Lithium as North American glass and battery markets are seeking a large,

reliable and regional supply chains."

Dense Media Separation ("DMS") and Flotation Locked-Cycle ("LCT") testing produced a high

quality spodumene concentrate product with an average grade of 7.2% lithium oxide ("Li

2

O"), iron

oxide below 0.15% Fe

2

O

3

, and low impurities from the composite sample. The concentrate

produced compares favorably with the premium concentrate specification guarantees (see Table I)

from the world's rare primary source of technical grade spodumene concentrates, produced from

select zones of the Greenbushes deposit in southwestern

Australia

.

Table I: Results of Dense Media Separation + Locked Cycle Flotation test results (FRON-19)

Chemical Compound

Frontier Lithium

composite sample

average

Albemarle

(i)

SC 7.2 Premium

Albemarle

(i)

SC 7.2 Standard

Li

2

O

7.2 %

min. 7.2 %

max. 7.2 %

Al

2

O

3

24.4 %

min. 25.0 %

min. 25.0 %

SiO

2

64.8 %

min. 62.5 %

max. 62.5 %

Fe

2

O

3

0.135 %

max. 0.12 %

max. 0.17 %

Na

2

O

0.16 %

max. 0.35 %

max. 0.35 %

K

2

O

0.11 %

max. 0.30 %

min. 0.40 %

P

2

O

5

0.05 %

max. 0.25 %

min. 0.35 %

CaO

0.03 %

max. 0.10 %

min. 0.10 %

(i)

reference

https://www.albemarle.com/businesses/lithium/products/product-finder?pinfo=spodumen

The composite sample was prepared by the Company to approximate zonation variability of the

resource with dilution at the average PAK lithium open pit reserve grade of 2.06% Li

2

O as

recommended and defined by the 2018 PAK Pre-feasibility Study (PFS) – 2020 Spark Resource

Estimation, filed on SEDAR

March 23, 2020

by WSP and Nordmin Engineering.

Overall total lithium recovery on the improved flowsheet was seventy-five (75%) at a combined

average grade of 7.0% Li

2

O. This included sixty-seven percent 67% (21% of the ore mass/yield) to

the high-quality 7.2% Li

2

O technical grade spodumene concentrate as outlined in Table I, with the

balance deporting to a lesser 6.2% Li

2

O chemical grade concentrate. Frontier is currently

conducting permitting, engineering and cost estimation for a planned demonstration concentrator;

whereby similar metallurgical results are expected with possible further optimization.

Mr.

Garth Drever

, P.Geo., is the "Qualified Person" for Frontier defined under NI 43-101 and has

reviewed and approved the technical information contained in this news release.

About Frontier Lithium Inc.

Frontier Lithium is a

Sudbury

based, Canadian owned, publicly listed, junior mining company with the

largest land position in an emerging premium lithium mineral district located in the Great Lakes

region of northern

Ontario

. The company is in late-stage exploration, early-stage development phase

with the near-term goal of building a Demonstration concentrator under an advanced exploration

permit. The company's PAK Lithium Project contains

North America's

highest-grade concentration of

rare low-iron, lithium bearing mineral spodumene and is

Ontario's

largest resource with significant

upside potential to increase. Frontier Lithium's current objective is to demonstrate the potential of the

PAK Lithium Deposit to produce up to 2,000 tonnes Lithium Carbonate Equivalent ("LCE") of

premium spodumene concentrates for glass producers and for feedstock to produce lithium

chemicals.

Frontier maintains a tight share structure with management ownership exceeding 30% of the

Company.

About the PAK Lithium Project

The PAK Lithium Project encompasses 26,774 hectares at the south end of

Ontario's

Electric

Avenue, which is the largest land package hosting lithium bearing pegmatites in

Ontario

. The Project

covers 65km of Avenue length and remains largely unexplored; however, since 2013 the company

has delineated two premium spodumene bearing lithium deposits located 2.3 km from each other at

the southwestern end of the project. Recently, Frontier confirmed the presence of spodumene with

the Pennock Lake pegmatite occurrence a further 30km along Frontier's PAK Lithium Project.

The PAK deposit has a mineral reserve in proven and probable category of 5.77 MT averaging

2.06% Li

2

O. The deposit hosts a rare technical/ceramic grade spodumene with low inherent iron

(below 0.1% Fe

2

O

3

). The "2019 Discovery of the year award" winning Spark Deposit has a mineral

resource estimate of 3.2 MT averaging 1.59% Li

2

O in indicated and 12.2 MT averaging 1.36% Li

2

O

in inferred category, as per NI 43-101 Technical Report, "PAK prefeasibility study, Spark resource

estimation" by WSP Canada Inc. and Nordmin Engineering Ltd., updated on

March 23, 2020

.

SOURCE

Frontier Lithium Inc.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/May2020/04/c6031.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 16:30e 04-MAY-20