Frontier Lithiumis pleased to announce the results for four additional drill holes completed during the Phase XII drill program on the Spark pegmatite which began in May 2022 and is currently in progress. The initial drill holes were designed to convert inferred material to the indicated category for the planned open pit. The Spark pegmatite is one of the two delineated premium spodumene-bearing lithium deposits on the PAK Lithium Project.

Highlights

• Phase XII delineation and infill drilling with two drill rigs is currently being conducted, whereby, the Company has completed 11,150m of drilling in 34 holes as of September 11th, 2022.  Analysis from 4 of the holes are reported herein.
• DDH PL-065-22 intersected a total of 171.5m of pegmatite averaging 1.57% Li₂O and thin sheets of mafic rafts within the pegmatite as expected. Collared north of the Spark Pegmatite in mafic volcanic 30m west of PL-062-22, hole was drilled to convert inferred material at depth and to provide a northern contact of the Spark Pegmatite.
  • Includes 19.2m zone from 241.8m to 261.0m of 2.88% Li₂O, 2.23% Cs₂O and 513 ppm Ta₂O₅
• DDH PL-067-22 intersected 326.6.m of pegmatite averaging 1.92% Li₂O.  Collared in pegmatite on the southern end of the Spark orebody and 40m east of PL-066-22, the hole was drilled to convert inferred material at depth
  • Includes 50m from 98.0m to 148.0m averaging 2.98% Li₂O.
• DDH PL-069-22 intersected 275.3m of pegmatite averaging 1.74% Li₂O.  Collared in Mafic Volcanic on the southern end of the Spark orebody, hole was drilled to convert inferred material at depth.
  • Includes 30m zone from 348.0m to 378.0m of 2.32% Li₂O.
• DDH PL-072-22 intersected 124.1m of pegmatite averaging 1.55% Li₂O.  Collared in Mafic Volcanic on the southern end of the Spark orebody, 30m east of PL-069-22, the hole was drilled to convert inferred material at depth.

“After tripling the metres drilled since the Resource update in March 2021 and targeting the Inferred, it is safe to say that the model remains robust and there will be substantial new Inferred.” states Garth Drever, V.P. Exploration. “The Spark deposit remains open in all directions with predictable grades and widths.”

The initial objective for the Phase XII drill program was to focus on converting the inferred resource within the central portion of the Spark deposit at depth.  Frontier is now focused on defining the limits of the pegmatite and deepening some of the initial holes that had been terminated earlier in the program.

Figure 1 is a location map showing the project area including Frontier’s land tenure and location of the three lithium-cesium-tantalum pegmatites.

Figure 1: Location Map showing land tenure and geology

Figure 2 is a plan view showing all drilling with analytical data completed to date with emphasis on drill hole traces reported in this release.

Figure 2: Planview map of the Spark pegmatite showing drillhole traces

Table 1 details the drill holes with mineralized intersections while Table 2 summarizes all the Phase XII drill holes reported within and completed up to PL-073-22.

Table 1: Details of Mineralized Intersections

Table 2:  Summary of Phase XII Drill Program

Other Matters

The Company has elected to introduce a phased approach in the Preliminary Feasibility Study currently underway by advancing a mine and mill development to initially produce premium spodumene concentrates in Phase I. Phase II plans will increase mine and mill production to feed its downstream refinery to produce lithium chemicals for the energy storage and electric vehicle battery market.  As a result of the Phased approach, the Company is updating delivery of the PFS to calendar Q1 2023.

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.