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Frontier Lithium Announces Filing of Technical Report ON the Spark Lithium Resource and Provides Initial Results ON the 2023 Exploration Program

Resource Estimates Technical Reports (NI 43-101)

FRONTIER LITHIUM ANNOUNCES FILING OF

TECHNICAL REPORT ON THE SPARK

LITHIUM RESOURCE AND PROVIDES INITIAL

RESULTS ON THE 2023 EXPLORATION

PROGRAM

SUDBURY, ON

,

May 9, 2023

/CNW/ - Frontier Lithium Inc. (TSXV: FL) (FRA: HL2) (OTCQX:

LITOF) ("Frontier" or "the Company") is pleased to announce that the Company filed the National

Instrument 43-101 ("NI 43-101")

Mineral Resource Estimate

. The Report is available for review on

both SEDAR (

www.sedar.com

) and the Company's website (

www.frontierlithium.com

). The Pre-

Feasibility Study results are expected to be announced in the coming weeks.

The results from the first two holes of eleven drilled to date on the Bolt pegmatite showing. The Bolt

pegmatite is located between the Spark and PAK spodumene-bearing lithium deposits on the PAK

Lithium Project and has only been mapped and channeled on surface exposures until now.

Highlights:

The Company commenced drilling at Bolt on

March 31

st

, 2023, and has, to date, completed

2,629m

in 11 drill holes. The first hole, DDH PL-103-23, was designed to test the presence of

mineralized pegmatite beneath the northernmost surface channel while PL-104-23 stepped out

60m

along strike to the northwest towards the Spark deposit. Results from these first two

diamond drill holes have been received and highlights are included below:

DDH PL-103-23 beneath the northernmost channel on the Bolt pegmatite showing, intersected a

total of

60.5m

of pegmatite averaging 1.33% Li

2

O.

Including

30.1m

from 101.0 to

131.1m

averaging 1.63% Li

2

O

Including

12.1m

from 119.0 to

131.1m

averaging 1.94% Li

2

O

DDH PL-104-23 intersected

67.2m

of pegmatite averaging 1.33% Li

2

O on the Bolt pegmatite

showing.

Including

19.4m

from 50.6 to

70.0 m

averaging 1.53% Li

2

O

Including

6.7m

from 63.3 to

70.0 m

averaging 1.92% Li

2

O

The report titled "Mineral Resource Estimate (MRE) for the PAK Lithium Project" outlines the

upgraded Spark Deposit total resource at 18.8 Mt, with an average grade of 1.52% Li

2

O in the

Indicated category and 29.7 Mt, with an average grade of 1.34% Li

2

O in the Inferred category.

A hydrogeological and geomechanical program was conducted with

2,033m

in 11 holes eleven

drill holes at the PAK deposit in February and March, 2023.

"The drilling at the Bolt pegmatite showing so far has proven consistency in width and lithium grades

beneath the surface channels previously mapped. The Bolt pegmatite appears to be a series of

dykes of variable thickness that extend sub-parallel to the main trend of the host mafic

metavolcanics and metasediments. The mineralization has been continuous, and we will continue

over the next couple months to test the trend towards the PAK deposit 1.2 km to the southeast."

states

Garth Drever

, VP Exploration.

Figure 1 is a location map showing the project area including Frontier's land tenure and location of

the three lithium-cesium-tantalum pegmatites.

During February and

March 2023

, diamond drilling associated with hydrogeological and geotechnical

studies at the PAK deposit was completed. A total of

2,033m

in eleven holes; six hydrogeological

and five geomechanical holes, were completed in and around the PAK deposit and proposed open

pit. These holes will help strengthen our understanding of groundwater movement and rock structure

and strength near the deposit in advance of the definitive feasibility study.

Once drilling was completed at PAK the drill rig was mobilized to the Bolt area with drilling

commencing on

March 31

st

, 2023. A series of single hole drill fences 60 to

80m

apart were designed

to test the exposed pegmatite outcrops defining the Bolt pegmatite. In addition, three holes fanned

out from the northwest end of Bolt testing the area between the Bolt outcrops and Spark. Figure 2

is a plan view map showing the Bolt outcrop exposures along with drillhole traces showing major

lithological features. Drilling is on-going at Bolt with continuation of single-hole fences to the

southeast.

Figure 2: Planview map of the Spark pegmatite showing drillhole traces (CNW Group/Frontier

Lithium Inc.)

Spodumene-bearing aplite with pegmatitic sections were intersected in all holes drilled to date. The

initial drilling on Bolt has shown continuity with depth beneath the surface exposures while the dykes

appears to be emplaced subvertical to steeply dipping to the southwest. Continuity towards Spark

appears somewhat cut-off, however, will require additional drilling to properly model. Due in part to

the concordant emplacement, the pegmatite dykes tend to incorporate abundant thin mafic horizons

and sheets of host rock. Spodumene is mostly fine grained (1-6mm laths) and typically light grey to

grey in color.

Table 1 details the drill holes with mineralized intersections at Bolt while Table 2 summarizes all drill

holes completed during the hydrogeological-geomechanical drill program at PAK and the drilling

completed to date at the Bolt pegmatite.

Table 1: Summary of Drill Hole Intersections

DDH PL-103-23

Accessed area from the Spark trail to the west and drilled to the northwest targeting the pegmatite beneath Channel

49. Intersected two zones; an upper and lower zone corresponding to the surface exposures with a slight off-set to the west.

Total of 60.5m of mineralized pegmatite was intersected averaging 1.33% Li

2

O

Zone

From

(m)

To

(m)

Width

(m)

Li

2

O

(%)

Cs

2

O

(%)

Ta

2

O

5

(ppm)

Nb

2

O

5

(ppm)

SnO

2

(ppm)

Rb

2

O

(%)

Unit

Li-Enriched

28.2

31.5

3.4

1.76

0.004

67

75

52

0.14

Pegmatite-Aplite

Li-Enriched

37.0

51.0

14.0

1.20

0.012

85

71

86

0.23

Pegmatite-Aplite

Li-Enriched

87.9

131.1

43.2

1.33

0.006

75

81

53

0.25

Pegmatite-Aplite

including

101.0

131.1

30.1

1.63

0.006

77

76

47

0.24

Pegmatite-Aplite

including

119.0

131.1

12.1

1.94

0.005

86

75

43

0.22

Pegmatite-Aplite

Total Pegmatite

60.5

1.33

0.008

77

78

61

0.24

DDH PL-104-23

Collared 60m to the northwest of PL-103-23 to test the section towards Spark. An upper 55.5m pegmatite zone was intersected

and offset to the west from the surface mapped exposure as well as a narrower 11.7m zone from 97.5 to

107.5m both averaging around 1.3% Li

2

O. In total, 67.2m of mineralized pegmatite was intersected averaging 1.33 Li

2

O.

Zone

From

(m)

To

(m)

Width

(m)

Li

2

O

(%)

Cs

2

O

(%)

Ta

2

O

5

(ppm)

Nb

2

O

5

(ppm)

SnO

2

(ppm)

Rb

2

O

(%)

Unit

Li-Enriched

23.5

79.0

55.5

1.33

0.007

56

62

74

0.19

Pegmatite-Aplite

including

50.6

70.0

19.4

1.53

0.007

49

48

59

0.19

Pegmatite-Aplite

including

63.3

70.0

6.7

1.92

0.008

59

45

74

0.20

Pegmatite-Aplite

Li-Enriched

95.9

107.5

11.7

1.36

0.018

89

62

59

0.21

Pegmatite-Aplite

Total Pegmatite

67.2

1.33

0.009

62

62

71

0.20

DDHNo

Date Drilled

UTM Zone 15N (NAD83)

Collar Orient

Metres Drilled

Start

End

Easting

Northing

(mASL)

Azim

Dip

Start

End

Bolt: Phase XIII

PL-103-23

2023-03-31

2023-04-02

473,126

5,829,159

344.0

41

-43

0

206.0

PL-104-23

2023-04-02

2023-04-03

473,096

5,829,215

340.0

45

-45

0

163.5

PL-105-23

2023-04-03

2023-04-04

473,101

5,829,230

340.0

45

45

0

102.0

PL-106-23

2023-04-04

2023-04-07

473,101

5,829,234

340.0

354

-44

0

360.0

PL-107-23

2023-04-08

2023-04-15

473,094

5,829,225

340.0

260

-43

0

282.0

PL-108-23

2023-04-11

2023-04-13

473,095

5,829,228

340.0

300

-45

0

246.0

PL-109-23

2023-04-16

2023-04-17

473,153

5,829,108

344.0

45

-45

0

213.0

PL-110-23

2023-04-18

2023-04-19

473,204

5,829,033

351.0

48

-45

0

211.5

PL-111-23

2023-04-20

2023-04-23

473,221

5,828,937

353.0

45

-45

0

327.0

PL-112-23

2023-04-23

2023-04-25

473,284

5,828,901

357.1

45

-46

0

248.1

PL-113-23

2023-04-25

2023-04-28

473,308

5,828,840

360.0

50

-45

0

270.0

Total

2629.1

PAK Hdrogeological-Geomechanical

PL-GDH-13-23

2023-02-07

2023-02-12

474,417

5,827,788

318.0

34

-47

0

352.5

PL-GDH-14-23

2023-02-12

2023-02-13

474,283

5,828,051

319.0

121

-47

0

102.0

PL-GDH-15-23

2023-02-13

2023-02-16

474,796

5,828,023

323.0

249

-47

0

266.1

PL-GDH-16-23

2023-02-17

2023-03-23

474,586

5,828,129

324.0

191

-47

0

99.0

PL-GDH-17-23

2023-02-18

2023-02-23

474,384

5,827,860

321.0

55

-69

0

201.0

PL-GDH-18-23

2023-03-03

2023-03-05

474,701

5,827,894

317.0

17

-69

0

120.0

PL-GDH-19-23

2023-03-06

2023-03-11

474,668

5,827,787

316.0

340

-70

0

201.0

PL-GDH-20-23

2023-02-23

2023-02-28

474,826

5,827,883

320.0

290

-70

0

201.0

PL-GDH-21-23

2023-02-28

2023-03-03

474,763

5,828,096

325.0

213

-71

0

97.6

PL-GDH-22-23

2023-03-16

2023-03-21

474,437

5,827,982

325.0

34

-69

0

201.0

PL-GDH-23-23

2023-03-12

2023-03-15

474,741

5,828,050

319.0

39

-69

0

192.0

Total

2033.2

Grand Total

4662.3

Table 2: Summary of 2023 Drilling at PAK and Bolt

Current plans are to continue drilling Bolt from the west and then move the drill back to the PAK area

and continue with widely spaced single hole fences with collars from the east.

Table 3 is a summary of the current Mineral Resource Estimate for the PAK Lithium project.

Table 3: PAK Lithium Project Global Resource

2023 (2023-02-28)

Deposit

Resource Category

Tonnes (t)

Li

2

O

(%)

Ta

2

O

5

(ppm)

Cs

2

O

(%)

Rb

2

O

(%)

Contained

Li

2

O (t)

Lithium

Carbonate

Eq. LCE (t)

PAK

Measured

1,344,600

2.14

94

0.04

0.25

28,790

71,193

PAK

Indicated

5,884,930

1.81

94

0.04

0.25

106,373

263,044

Spark

Indicated

18,828,000

1.52

112

0.02

0.26

286,186

707,694

PAK

Inferred

2,758,250

2.22

89

0.03

0.26

61,107

151,108

Spark

Inferred

29,746,000

1.34

116

0.03

0.26

398,596

985,668

Combined

Measured/Indicated

26,057,530

1.62

107

0.02

0.26

421,348

1,041,931

Combined

Inferred

32,504,250

1.41

114

0.03

0.26

459,703

1,136,776

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-half 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 float plane and then

shipped to AGAT Laboratories Ltd. (AGAT) in

Thunder Bay

for sample preparation and to

Mississauga, Ontario

for processing and 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 with an objective to become a strategic domestic

supplier of spodumene concentrates for industrial users as well as battery-grade lithium hydroxide

and other chemicals to the growing electric vehicle and energy storage markets in

North America

.

The Company maintains the largest land position and resource in a premium lithium mineral district

located in

Ontario's

Great Lakes region.

About PAK Lithium Project

The PAK lithium project contains one of

North America's

highest-grade lithium resources. The project

encompasses close to 27,000 hectares 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. Exploration is continuing 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 (25 kilometres northwest of PAK deposit within the project claims). A 2023

Mineral Resource Estimate report (National Instrument 43-101 technical report titled "NI 43-101

Mineral Resource Estimate Pak Lithium Project " by BBA E&C Inc., with an effective date of

April

28, 2023

) underlined a total resource at the PAK deposit of 7.2 Mt, with an average grade of

1.87% Li

2

O (Measured & Indicated) and 2.8 Mt, with an average grade of 2.22% Li

2

O (Inferred)

and at the Spark deposit 18.8 Mt with an average grade of 1.52% Li

2

O (Indicated) and 29.7 Mt an

average grade of 1.34% Li

2

O (Inferred).

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

.

SOURCE

Frontier Lithium Inc.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/May2023/09/c4017.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 09:28e 09-MAY-23