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Frontier Lithium Intersects 231m of 1.61% Li2O During Phase II Drilling of the Spark Pegmatite

Drill Results

Frontier Lithium Intersects 231m of 1.61% Li2O

During Phase II Drilling of the Spark Pegmatite

Highlights

Phase II diamond drill program includes four holes drilled totaling

1,159.5m

; all intersecting

significant zones of spodumene pegmatite; assay results have been received for the first 2 drill

hole;

DDH PL-042-19 intersected a total of

231 m

of pegmatite averaging 1.61% Li

2

O, including

25.0m

of 2.75% Li

2

O;

DDH PL-043-19, to the west intersected three narrow (10 to

25m

) dykes which is consistent

with the surface expression of the pegmatite. Grades ranged from 1.0 to 1.5 % Li

2

O;

The deposit displays consistency in both composition and lithium grades across the width of the

pegmatite down to at least

200m

depth;

All indications suggest the Spark Pegmatite is vertically emplaced; open to the west with a

multiple dyke-system extending to the east.

SUDBURY, ON

,

Sept. 24, 2019

/CNW/ -

Frontier Lithium Inc. (TSX.V: FL) (the "Company)

is

pleased to announce the initial results of their second Phase of drilling on the Spark Pegmatite.

Frontier completed four diamond drill holes totaling

1,159.5 m

in July-August 2019. During the drill

program an additional 4 channels totaling

52 m

were cut and most of the exposed outcrop surface in

the immediate area of the pegmatite was mapped. Geochemical results from the first two drill holes

have been received. The remaining analysis is expected by the end of October.

Figure 1 is a location map showing the surface outline of the Spark pegmatite, location of channels

and drill hole traces with geology overlain on detailed imagery of the outcrop area. Phase I drilling in

February focused on targeting the pegmatite from the south along the base of the 30 to

40 m

high

ridge of predominately pegmatite. Three holes were drilled during Phase II from the top of the ridge

back towards the Phase I collars and the fourth hole was a re-drill of hole PL-037-19 which had

been abandoned.

All holes intersected significant widths from 20 to

125 m

of pegmatite. Spodumene grain size and

abundance tends to increase with the presence of quartz and feldspar megacrysts which is similar to

the LIZ (Lower Intermediate Zone) and locally similar to the CIZ (Central Intermediate Zone) of the

PAK Pegmatite. The exposed pegmatite and host metavolcanic rock has been mapped over most of

the immediate area (Figures 1). Overburden stripping is required to the west and to the east in the

area of Channels 39 and 40.

Figure 1: Location Map showing the project location and drill hole traces (CNW Group/Frontier

Lithium Inc.)

Table 1 is a summary of results for the first two drill holes.

DDH PL-042-19

Designed to test from the north, the extent of the Spark pegmatite underneath the

northern exposed arm of the pegmatite and Channel 36 south towards the collar of

DDH PL-039-19. Intersected predominately pegmatite 55m to 305m totaling 231.05

m averaging 1.61% Li2O. Host rock is metavolcanic schist

UTM Zone 15N WGS84

472,705E

Azim

174°

5,829,596N

Dip

-44°

Total Depth

357.0

m

Zone

From

(m)

To

(m)

Width

(m)

Horiz.

(m)*

Li2O

%

Ta2O5

ppm

SnO2

ppm

Nb2O

5

ppm

Rb2O

%

Cs2O

%

Unit**

Li Enriched

55.4

114.7

59.4

42.7

1.88

106

47

92

0.20

0.01

LIZ/aplite

Including

77.0

102.0

25.0

18.0

2.75

79

32

65

0.17

0.01

LIZ/aplite

Li Enriched

125.7

170.8

45.2

32.5

1.42

147

96

79

0.27

0.03

Aplite/liz

Including

127.5

141.5

14.0

10.1

2.30

156

52

71

0.21

0.01

LIZ/aplite

Li Enriched

178.7

305.3

126.6

91.0

1.55

89

44

92

0.26

0.01

Aplite

Including

178.7

219.0

40.3

29.0

1.84

113

127

98

0.28

0.02

Aplite

DDH PL-043-19

Designed to test from the north, the extent of the Spark pegmatite between

Channel 37 and DDH PL-040-19 to the east. Intersected three narrow (<25m)

pegmatite zones from 89m to 178m totaling 60 m averaging 1.34% Li2O. Host rock

is metavolcanic schist

UTM Zone 15N WGS84

472,858E

Azim

170°

5,829,584N

Dip

-44°

Total Depth

276.0

m

Zone

From

(m)

To

(m)

Width

(m)

Horiz.

(m)*

Li2O

%

Ta2O5

ppm

SnO2

ppm

Nb2O

5

ppm

Rb2O

%

Cs2O

%

Unit**

Li Enriched

89.0

100.1

11.1

8.5

0.99

280

42

120

0.15

0.02

Aplite

Including

89.0

95.0

6.0

4.6

1.66

202

50

85

0.23

0.03

Aplite

Li Enriched

115.7

138.8

23.2

17.8

1.34

117

113

82

0.35

0.02

Aplite

Including

124.0

138.8

14.8

11.4

1.55

129

122

100

0.38

0.02

Aplite

Li Enriched

152.4

178.1

25.8

19.7

1.49

116

97

87

0.32

0.01

Aplite

Including

156.0

170.0

14.0

10.7

1.84

104

100

85

0.36

0.01

Aplite

* Assuming the Spark pegmatite is vertically oriented the Horizontal distance equals the "true width" when the Azimuth

of the drill hole is perpendicular to the strike of the deposit (070 to 090 degrees)

** Units within the Spark pegmatite resemble the Lower Intermediate Zone (LIZ)and aplite at the PAK Pegmatite

Table 2 is a summary showing coordinates, collar orientation and depths of each drill hole

Table 2: Summary of 2019 Drilling at Spark Pegmatite

Coordinates (UTM Zone 15N)

Orientation

Depth (m)

DDHNo

UTM_E

UTM_N

mASL

INCL

AZIM

O/B

Total

PL-042-19

472705

5829596

355

-45

174

3.0

357.0

PL-043-19

472858

5829584

358

-45

170

0.0

276.0

PL-044-19

472640

5829500

352

-45

178

0.0

231.0

PL-045-19

472882

5829390

326

-45

330

11.9

295.5

Total metreage

1159.5

Figures 2 and 3 are sections for holes PL-042-19 and PL-043-19, respectively, showing Li

2

O

content as histogram plots along the drill hole and channel traces. The intersections of pegmatite as

illustrated in Figure 2, are broad and contain minor metavolcanic host rock. During Phase I program

DDH PL-038-19 intersected

215m

of pegmatite averaging 1.4% Li2O, including

62.0m

of 1.81%

Li

2

O. (

See Press Release dated

April 9,2019

) Surface observations and the drill intersections

indicate there are two, possibly three main pegmatite zones/dykes that are 50 to

75m

wide on the

western margins with much narrower dykes to the east.

Figure 2: Section showing Trace Geology and Li2O for DDH PL-042-19 and PL-038-19 (CNW

Group/Frontier Lithium Inc.)

Figure 3: Section showing Trace Geology and Li2O for DDH PL-043-19 and PL-040-19 (CNW

Group/Frontier Lithium Inc.)

"We are extremely pleased with the drilling results and are confident that enough information is

available to complete a resource estimate before year-end." commented

Garth Drever

, Vice

President of Exploration. "We are currently compiling a 3-D model using the digital elevation model,

surface mapping, channels and drill data. Due to the effectiveness of the drilling we believe there is

adequate data to support a resource estimate with both Indicated and Measured categories

included. The reality for an at-surface deposit to augment the PAK project resource size is genuine."

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, 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 Canadian junior mining company with the largest land position in the Electric

Avenue, an emerging premium lithium mineral district located in the Canadian Shield of northwestern

Ontario

. The company's PAK Lithium Deposit contains

North America's

highest concentration of rare

low-iron spodumene. Frontier Lithium's objective is to firstly become a near term producer of

premium technical grade lithium mineral concentrates of 2,000 tonnes of Lithium Carbonate

Equivalent ("LCE") for glass producers. Through a phased approach to scale up to 20,000 tonnes by

2025 by ramping up production of concentrates and building a downstream processing facility to

produce lithium chemicals required by glass and battery materials producers.

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

Company.

About the PAK deposit

The PAK Deposit is located in the south end of

Ontario's

Electric Avenue, a newly emerging

premium lithium-metal district. Electric Avenue also hosts Frontier's newest discovery, Spark

showing (2km northwest) and the Pennock Lake pegmatite occurrence a further 30km along

Frontier's PAK Lithium Project. The PAK deposit has a mineral resource estimate of 9.3 Mt

averaging 2.04% Li

2

O which has a rare technical/ceramic grade spodumene with low inherent iron

(below 0.1% Fe

2

O

3

) as per its NI 43-101 Technical Report, "Preliminary Feasibility Study"

disseminated on

April 16, 2018

.

Additional information regarding Frontier Lithium is available on SEDAR at

sedar.com

under the

Company's profile and on its website at

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.

SOURCE

Frontier Lithium Inc.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/September2019/24/c5735.html

%SEDAR: 00008434E

For further 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 17:00e 24-SEP-19