Sudbury, Ontario, – Frontier Lithium is pleased to announce the results of the three remaining drill holes and supplemental channels completed during the Phase X drill program on the Spark pegmatite, the second delineated premium spodumene-bearing lithium deposit on the PAK Lithium Project.

Highlights

• Hole PL-050-21 tested depth and width of the main body of the Spark pegmatite, included a total of 405m of mineralized pegmatite averaging 1.5% Li₂O;
  • Apparent width of 143m to a vertical depth extent of at least 392m;
• Hole PL-051-21 intersected a total of 264m of pegmatite averaging 1.6% Li₂O;
  • Included a 60m section from 216m to 276m averaging 2.5% Li₂O

“We are extremely pleased with these results as they confirm continuity in quality and grade of the Spark deposit and they continue to increase the size of the resource,” states Garth Drever, V.P. Exploration and added “With the grade-thickness persisting at depth, the Spark deposit contains significant potential for growth.”

The objectives for the Phase X drill program in September-October 2021 were to complete drill targets considered vital for completing a Pre-Feasibility Study (PFS).  Figure 1 is a location map showing the project area including Frontier’s land tenure, geology, and location of the three pegmatites, PAK, Bolt and Spark while Figure 2 is a plan map of the Spark pegmatite with drill hole traces highlighting the last three holes and two channels being reported. Table 1 details the mineralized intersections in holes PL-050-21 to PL-052-21 while Table 2 is a summary of all the Phase X drill holes.  Table 3 details the mineralized intervals of the channels cut at Spark and Table 4 is a summary of the channels.

Figure 1: Location map showing geology, land tenure and location of Lithium Cesium Tantalum pegmatites.

Figure 2: Compilation of the Spark pegmatite showing drill hole traces highlighting Holes PL-050-21, PL-051-21 and PL-052-21 and Channels CH-48 and CH-50.

Table 1: Details of Mineralized Intersections in Drill Holes.

Table 2: Details of Mineralized Intersections in Surface Channels.

Table 3: Summary of Drill Holes.

Table 4: Summary of Channels.

Drill holes PL-050-21 and PL-051-21 were planned to fill-in between existing drill holes and to test to the southern continuity of the mineralized pegmatite’s main body currently defined.  PL-050-21 was collared in the pegmatite near PL-GDH-08-21 which intersected 95m of mineralized pegmatite to the north. PL-050-21 was steepened to -70°. Aside from a few thin mafic zones, a total of 405m of pegmatite averaging 1.5% Li₂O was intersected.  The mineralized pegmatite intersected represents a horizontal width of 143m and a vertical depth of 392m.  PL-051-21, drilled at -60°set-up between PL-042-19 and PL-044-19 and to “scissor” PL-039-19, intersected predominately pegmatite with intervals of mafic metavolcanics a few metres to 25m wide from surface to 302m.  The total pegmatite intersected between surface and 302m downhole includes 264m averaging 1.6% Li₂O.

Hole PL-052-21 was drilled to test between holes PL-041-19 and PL-043-19 and east of Channels 37 and 38 (Figure 2). The hole intersected three main mineralized pegmatite zones 21 to 72m wide correlating well with zones intersected in PL-043-19 to the east.  Li₂O grades are slightly lower between 0.8% Li2O and 1.2% Li₂O. Minor metavolcanics occur within the pegmatitic zones.

During the drill program, two addition channels were cut and sampled on the Spark outcrop surface (Table 4 and Figures 2 and 3).  Channel CH-48 was cut along the farthest southwest exposure at the top of a ridge above the collar for DDH PL-039-19.  The 15m channel of pegmatite averaged 1.75% Li₂O.  The second channel, CH-50 located to the north of CH-48 and between holes PL-050-21 and PL-051-21 was cut in two segments with a 7m gap between 10m and 17m due to overburden.  The initial 10m of aplite-pegmatite averaged 1.28% Li₂O and the last 22m of pegmatite was higher at 1.85% Li₂O.

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 Frontier employees and then shipped to AGAT Laboratories Ltd. (AGAT) in 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.

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