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Frontier Lithium identifies an average of 1.91% Li2O over 236m of all channels sampled on the Spark Pegmatite

Drill Results

General Office

2736 Belisle Drive

Val Caron, ON P3N 1B3

T. 705.897.7622

F. 705.897.7618

Frontier Lithium identifies an average of 1.91% Li2O over

236m of all channels sampled on the Spark Pegmatite

Sudbury, Ontario, January 17, 2019 – Frontier Lithium Inc. (TSX.V: FL) (the “Company”) is pleased to

announce the results of surface channel sampling of the newly discovered Spark Pegmatite, 2.3 km northwest

of the PAK deposit (Figure 1), located on the Electric Avenue, a newly emerging premium lithium-metal district

hosted in the Canadian Shield of northwestern Ontario. See Frontier Lithium Press Release issued November 7, 2018 for

additional information.

Channel sampling was initiated at the time of discovery in September 2018 and completed a month later in

October. The pegmatite is well exposed where minimal stripping by hand was required to complete the

channel sampling. In total 236.4m of channels were cut and represent two main transects (Channels 33 to 35

for 64m and Channels 37 and 38 for 94.5m) that are 65m apart and 3 additional channels, CH-36, CH-39 and

CH-40 cut where the pegmatite was exposed. Figure 2 is a view from the west showing the trace of the

channels draped over the topography.

Figure 1: Location Map of the Spark Pegmatite showing channel locations overlain on high-resolution ortho-

rectified image.

General Office

2736 Belisle Drive

Val Caron, ON P3N 1B3

T. 705.897.7622

F. 705.897.7618

Figure 2: 3D rendering showing exposure of the Spark Pegmatite and Channel intercepts

The assay results and location for the channels are presented in Table I and Table II respectively.

Channel 33 to 35 represents a continuous transect of 64m averaging 2.05% Li2O while Channel 37 to 38

located 70m to the east, is 94.5m averaging 1.85% Li2O with elevated Ta2O5 up to 615 ppm and 2.9% Li2O

over 6.2m from 63.2 to 69.4m. Channel 36 (northern extension of Channel 33 to 35) averaged 2.02% Li 2O

over 35m. Channel 36 could not be continuously sampled; however, overburden was removed by hand

exposing continuous pegmatite. Channels 39 and 40 to the east average 1.88% Li2O over 26.9m and 1.54%

Li2O over 16m respectively.

Sampling the surface exposures of the Spark Pegmatite shows consistent grades of Li2O throughout the

sampled area varying from a low of 1.5% in Channel 40 in an aplite-rich pegmatite to over 2% throughout

much of the rest of the pegmatite with narrower zones (<18m) ranging between 2.5% and 3.2%. High grade

lithium zones of over 4% Li2O similar to the UIZ (Upper Intermediate Zone) at the PAK deposit occur, but over

intervals typically less than 2m.

“We are extremely pleased these results and excited about the addition to the PAK Lithium Project. The

consistent lithium grade across the channels and the lithological homogeneity across the width of the exposed

pegmatite suggests this pegmatite could be substantial. The showing is the focus of exploration as it appears

that the potential for a resource to augment the PAK deposit is high.”, stated Trevor Walker, President and

CEO of the “Company”.

Table I – Channel Summary

CHANNEL From

(m)

To

(m)

Width

(m)

Li2O

%

Ta2O5

ppm

SnO2

ppm

Nb2O5

ppm

Rb2O

%

Cs2O

% Geology

CH-33 to 35 0.0 64.0 64.0 2.05 136 51 94 0.30 0.02 LIZ/Aplite

Including 0.0 34.0 34.0 2.18 136 56 89 0.29 0.02 LIZ/Aplite

Including 28.0 39.0 11.0 1.86 240 52 102 0.31 0.02 LIZ/Aplite

CHANNEL From

(m)

To

(m)

Width

(m)

Li2O

%

Ta2O5

ppm

SnO2

ppm

Nb2O5

ppm

Rb2O

%

Cs2O

% Geology

* CH-36 0.0 35.0 35.0 2.02 94 49 87 0.24 0.01 LIZ/Aplite

* CH-36 0.0 4.5 4.5 2.09 306 52 122 0.32 0.02 LIZ/Aplite

Including 0.0 4.0 4.0 2.22 315 52 112 0.34 0.02 LIZ

* CH-36 10.9 35.0 24.1 2.00 55 49 80 0.23 0.01 LIZ

Including 23.0 35.0 12.0 2.33 49 51 62 0.22 0.01 LIZ

Including 12.2 15.0 2.8 3.21 87 17 104 0.09 0.01 LIZ

* Unable to sample from 4.5 to 10.9m (6.4m)

CHANNEL From

(m)

To

(m)

Width

(m)

Li2O

%

Ta2O5

ppm

SnO2

ppm

Nb2O5

ppm

Rb2O

%

Cs2O

% Geology

CH-37 to 38 0.0 94.5 94.5 1.85 186 81 93 0.29 0.02 LIZ/Aplite

Including 51.3 69.4 18.1 2.52 319 109 76 0.34 0.02 LIZ/Aplite

Including 63.2 69.4 6.2 2.90 615 214 72 0.27 0.02 LIZ

CHANNEL From

(m)

To

(m)

Width

(m)

Li2O

%

Ta2O5

ppm

SnO2

ppm

Nb2O5

ppm

Rb2O

%

Cs2O

% Geology

** CH-39 0.0 26.9 26.9 1.88 168 59 78 0.27 0.01 LIZ/Aplite

Including 0.0 16.6 16.6 2.33 179 48 84 0.27 0.01 LIZ/Aplite

Including 12.2 16.6 4.4 3.04 184 28 93 0.26 0.01 LIZ

** Missing analysis from 4 samples from 7 to 11.3m (4.3m)

CHANNEL From

(m)

To

(m)

Width

(m)

Li2O

%

Ta2O5

ppm

SnO2

ppm

Nb2O5

ppm

Rb2O

%

Cs2O

% Geology

CH-40 0.0 16.0 16.0 1.54 130 108 81 0.29 0.02 Aplite

Including 0.0 10.0 10.0 1.73 137 137 95 0.36 0.01 Aplite

General Office

2736 Belisle Drive

Val Caron, ON P3N 1B3

T. 705.897.7622

F. 705.897.7618

Table II – Channel Locations

Channel

ID

Start of Channel Start (WGS84 Zone 15N)

Length (m) Logged by Easting Northing Elev (mASL) Incl Azim

CH-33 472740 5829500 357.0 -2 160 23 S. Beyer

CH-34 472752 5829481 355.8 -2 148 11 P. Vanstone

CH-35 472760 5829473 356.0 -12 146 30 P. Vanstone

CH-36 472723 5829493 355.9 -2 330 35 P. Vanstone

CH-37 472791 5829537 361.4 -5 142 78.5 P. Vanstone, G. Drever

CH-38 472775 5829522 359.9 -6 229 16 G.Drever

CH-39 472782 5829531 360.8 -7 243.6 26.9 G.Drever

CH-40 472790 5829539 361.7 -8 258.2 16 G.Drever

Total Channels 236.4

Due Diligence

All scientific and technical information in this release has been reviewed and approved by Garth Drever, P.Geo.,

the qualified person (QP) under the definitions established by National Instrument 43-101. Under Frontier’s

QA/QC procedures, channels are cut with a motorized circular diamond saw, and are 4 cm wide and 10 cm

deep. The channels are typically oriented perpendicular to the strike of the pegmatite internal mineralogical

zones and are cut continuously across the zones. The samples are removed using a hammer and chisel. The

length of a channel is determined by the width of the pegmatite zone. Offset channels are cut where deemed

appropriate. Sample lengths typically are 1 metre but can be less depending on zone mineralogy and

boundaries. Samples are described, placed into a poly sample bag with a numbered sample tag and then

shipped to the assay lab for quantitative multi-element analysis.

All samples were assayed by AGAT Laboratories Ltd. (“AGAT”), an ISO accredited laboratory in

Mississauga, Ontario. Sample blanks along with tantalum, 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.

About Frontier Lithium Inc.

Frontier Lithium is a Canadian junior mining company and have the largest land position in the Electric Avenue,

a newly emerging premium lithium-metal district hosted in the Canadian Shield of northwestern Ontario. Frontier

is implementing a phased approach to development for becoming a producer of technical grade lithium

concentrates required to produce premium glass/ceramics as well as supplying a by-product of chemical grade

concentrates for the production of lithium hydroxide required for the burgeoning lithium battery industry.

Frontier’s goal is to become a low-cost, fully integrated lithium producer through development of the PAK lithium

deposit in Ontario, Canada. Frontier maintains a tight share structure with management ownership exceeding

30% of the Company. The deposit boasts its lithium in a rare, high-purity, low-iron spodumene and is analogous

to the Greenbushes’ Deposit in SW Australia, which supplies approximately 40% of the world’s lithium

demands. Frontier has recently discovered a new LCT Pegmatite showing that called the Spark showing, which

at surface has displayed a channel cut with similar grade and composition to PAK Lithium Deposit. The surface

exposure is 3 times larger than the PAK pegmatite which widths greater than 100m and a strike length of more

than 300m.

Ceramic/glass customers prefer to source technical-grade (low-iron) spodumene concentrate in excess of 7%

lithium oxide (Li2O), if available, to avoid inferior lower grade petalite concentrates, or paying much higher prices

for battery grade lithium compounds.

The PAK lithium deposit remains open in all directions and Company Management is working towards

developing a viable operation. The Company has completed a pre-feasibility study to assess the economic

viability and technical feasibility of producing lithium concentrates.

About the PAK Lithium Project

The PAK Lithium Project lies close to the boundary between two geological sub-provinces of the western

Superior geologic province in northwestern Ontario and hosts a rare metals pegmatite deposit. The deposit is an

LCT (lithium- cesium- tantalum) type pegmatite. These types of pegmatites have been the principal source of

hard rock lithium, tantalum, rubidium and cesium ores mined in the world but there are comparatively few

commercially-viable deposits.

Frontier is actively exploring its 100% owned project which contains the Pakeagama Lake pegmatite. The PAK

deposit has a current Measured and Indicated Resource of 7.5 million tonnes of 2.02% Li2O and an Inferred

Lithium Resource of 1.8 million tonnes of 2.10% Li2O which has a technical/ceramic grade spodumene with low

inherent iron (below 0.1% Fe2O3) as per its NI 43-101 Technical Report, “Preliminary Feasibility Study”

disseminated on April 16, 2018.

The deposit now has a known 500m strike length with an estimated true width varying from 10m to 125m with a

sub-vertical orientation. The resource remains open to depth and along strike to the northwest and southeast.

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

Additional information regarding Frontier Lithium is available on SEDAR at www.sedar.com under the

Company's profile and on its website at www.frontierlithium.com, including various pictures of ongoing work at

the project.

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.