Mr. Bora Ugurgel reports

FRONTIER LITHIUM FILES NI 43-101 PRE-FEASBILITY STUDY FOR PAK PROJECT IN NORTHERN ONTARIO

Frontier Lithium Inc. has filed the "Prefeasibility Study for the PAK Project" technical report. As communicated in a news release dated May 31, 2023, this technical report outlines the preliminary feasibility assessment of the 100-per-cent-owned PAK project, located north of Red Lake in Ontario, and a proposed hydrometallurgical plant that would convert spodumene concentrate feedstock into lithium chemicals. The technical report confirms the vertically integrated project could be North America's largest and lowest-cost producer of lithium hydroxide, supplying the rapidly growing electric vehicle industry on the continent.

The technical report is effective as of the 31st day of May, 2023. The full technical report is available on SEDAR.

Prefeasibility study highlights: a 24-year total project life, with after-tax pay back of capital expenditures in less than five years following commercial production

• Life of project cash flow (unlevered) of $8.07-billion (U.S.) over 24-year total project life;
• Total initial capital expenditure estimate of $468-million (U.S.) for the technical grade concentrator and expansion capital of $576-million (U.S.) for the chemical grade concentrator and chemical plant with a contingency of 20 per cent included;
• Sustaining capital of $90-million (U.S.);
• Posttax net present value at an 8-per-cent base case discount rate (NPV8) of $1,739-million (U.S.) and IRR (internal rate of return) of 24.1 per cent;
• Posttax net undiscounted cash flow (before initial capital expenditures) of $5.98-billion (U.S.);
• Annual average EBITDA (earnings before interest, taxes, depreciation and amortization) of $251.3-million (U.S.);
• Chemical plant producing 12,520 tonnes of battery-quality lithium hydroxide monohydrate (LiOH-H2O) per year with an average selling price of $22,000 (U.S.) per tonne and 7,360 tonnes of battery-quality lithium carbonate per year with an average selling price of $20,500 (U.S.) per tonne;
• PAK and Spark deposits are open along strike and to depth;
• All-in cash costs of $7,433 (U.S.) per tonne of lithium carbonate equivalent;
• After-tax pay back of capital expenditures is 4.9 years after the start of commercial operations.

In addition, with regard to this particular release, the company hereby presents the following sensitivity analysis tables and figures that were hitherto undisclosed. The sensitivity analysis reveals that the United States dollar: Canadian dollar exchange rate and battery grade (BG) lithium hydroxide price have the most significant influence on both the net present value (NPV) and internal rate of return (IRR) compared with the other parameters, based on the ranges evaluated. Over all, the NPV and IRR of the project is positive over the range of values used for the sensitivity analysis when the sensitivities are analyzed individually.

Prefeasibility study overview

1. Lithium chemicals for the North American electric vehicle market

• The PAK project has the ability to produce 7,360 metric tonnes (mt) of lithium carbonate and 12,520 mt of lithium hydroxide annually. This production tonnage meets the specific requirements of original equipment manufacturers (OEMs), such as automotive companies operating in the North American electric vehicle market. As the electric vehicle market continues to evolve and expand, the ability to adapt and meet changing customer demands becomes crucial. The lithium chemicals to be produced by Frontier Lithium will be tailored to the needs of the industry, supporting the growth of electric vehicles manufacturing in the region and building in optionality for the future demand profiles through adjustments in production capacity and product mix to align with future market trends and customer preferences.

2. A phased approach

• The development of the PAK project and hydromet chemical plant will be completed in phases to allow for efficient resource allocation, to minimize upfront capital expenditure and derisk project execution. The first phase will focus on the production of spodumene concentrate to generate revenue and support the concurrent development of necessary infrastructure to build the proposed mine-to-lithium hydroxide chemical plant facility. Implementing a phased approach also enables a more streamlined and controlled project development process, enabling a thorough understanding of the resource base and an optimization of the refining process in advance of chemical plant construction. This approach ensures that the subsequent refinery buildup is well informed, efficient and aligned with market demand.

3. Growing regional demand

• The North American electric vehicle market is experiencing significant growth, with strong commitments of over $25-billion to build Ontario battery capacity by 2030. This strong regional growth provides a favourable market environment for the lithium project. The project can capitalize on its strategic North American location, the growing demand for electric vehicles and the need for lithium chemicals to support battery production.
• The commitments to build Ontario battery manufacturing capacity indicate a long-term future in sustainable transportation and the development of the electric vehicle ecosystem. By supplying locally produced lithium chemicals, the project can contribute to the regional supply chain, reduce dependence on imports, and strengthen the overall resilience and competitiveness of the North American electric vehicle market.

4. Opportunities for further upside

• The project offers opportunities for further upside through the potential conversion of additional mineral resource to mineral reserves. The PFS reserve calculation includes only one-third of the identified resources. None of the 32.4 million tonnes of inferred mineral resources were included in the PFS mineral reserves. This indicates significant exploration potential and the possibility of scaling the project.
• Frontier has a strong record in resource exploration and development, and the continued exploration efforts within the PAK lithium project could uncover additional mineral resources. The potential to tap into additional resources ensures the project will be responsive to future market demands and supports long-term sustainability.

Due diligence

All scientific and technical information in this release has been reviewed and approved by Todd McCracken, PGeo, director -- mining and geology -- central Canada, BBA E&C Inc., the qualified person (QP),, and Garth Drever, PGeo, vice-president of exploration for Frontier Lithium, 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, Ont., using thin-walled BTW drill rods (4.2-centimetre 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, Ont., for quantitative multielement analysis. AGAT is an ISO accredited laboratory. The core is stored on site at the Pakeagama Lake exploration camp.

About Frontier Lithium Inc.

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 the PAK lithium project

The PAK lithium project contains North America's highest-grade lithium resource and is the second largest in North America by size. 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 prefeasbility study "National Instrument 43-101 Technical Report PFS PAK Lithium Project" by BBA E&C, delivered posttax NPV(8) of $1.74-billion (U.S.) and IRR of 24.1 per cent as per the press release disseminated on May 31, 2023, and was filed on SEDAR.

We seek Safe Harbor.