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Lithium Americas Provides Update on the Thacker Pass Lithium Project

Corporate Updates

September 25, 2019

Lithium Americas Provides Update on

the Thacker Pass Lithium Project

Vancouver, Canada: Lithium Americas Corp. (TSX: LAC) (NYSE: LAC) ("Lithium Americas" or the

"Company") is pleased to provide an update on the Thacker Pass lithium project (“Thacker Pass” or the

“Project”) located in northern Nevada. Thacker Pass is 100% owned by Lithium Nevada Corp. (“Lithium

Nevada”), a wholly-owned subsidiary of Lithium Americas.

Highlights:

• Plan of Operation deemed complete by Bureau of Land Management ; all major permits for Phase 1

operations expected to be received by the end of 2020

• Partnered with Sawtooth Mining LLC, a subsidiary of NACCO Industries, Inc. (NYSE: NC) and The

North American Coal Corporation, in a long-term mining contract to provide mine engineering,

construction, operation and reclamation services as well as certain equipment

• Secured water rights sufficient to meet or exceed requirements expected for Phase 1 production

• Produced over 3,000 kg of high- quality lithium sulfate solution at the process testing facility in Reno,

Nevada

• Engaged third-party vendor to engineer and design lithium carbonate and lithium hydroxide evaporator

and crystallizer as well as provide performance guarantees and product samples

• Commenced a definitive feasibility study with a Phase 1 production capacity of 20,000 tonnes per

annum of battery-quality LCE expected to be complete by mid-2020

• Entered into a design and build contract with TIC - The Industrial Company to complete key aspects of

the definitive feasibility study, with an option to expand to the role as prime contractor for the plant

• Evaluating financing options, including the possibility of a joint venture partner at Thacker Pass

• Conference call and webcast scheduled for Tuesday , October 1, 2019 at 9 :00 am EDT to discuss

Thacker Pass and the results of the Cauchari-Olaroz definitive feasibility study

“Thacker Pass has recently achieved several regulatory and commercial milestones, including finalizing the

partnership with North American Coal as our mining contractor and acceptance of the Plan of Operation by

the Bureau of Land Management,” commented Alexi Zawadzki, Lithium Americas’ President of North

American Operations. “Supported by a high-grade scalable resource and simple low-cost process, Thacker

Pass is positioned to be the foundation for a strong and environmentally responsible battery industry in the

United States.”

“We are pleased to partner with North American Coal at Thacker Pass and leverage their over 100 year s’

experience in mining, including the construction of five surface mines in the last nine years ,” commented

Jon Evans, Lithium Americas’ President and CEO. “Lithium Americas has advanced Thacker Pass to

become one of the larges t-known and most cost competitive lithium projects in development . We look

forward to engaging with potential strategic partners in the year to come.”

Regulatory & Permitting

Federal National Environmental Policy Act

Lithium Nevada has submitted environmental baseline studies that inform the public agencies about the

Project and related resources. The final Plan of Operation (“Final PoO”) was filed in August 2019 and

deemed complete by the Bureau of Land Management (“BLM”) in September 2019. A third-party contractor

has been selected by the BLM to write the Environmental Impact Statement (“EIS”) which is scheduled to

be complete by the end of 2019. The EIS will assist federal, state and local regulatory agencies in their

review of the Company’s applications for environmental and land-use permits. Upon completion of the EIS,

the BLM is expected to issue a Notice of Intent that commences the formal National Environmental Policy

Act (“NEPA”) EIS public process. The NEPA process is designed to help public officials complete permitting

decisions that are protective of the environment and includes a public engagement process. Following the

completion of a public process that is mandated to take no longer than twelve months, the BLM is expected

to issue a Record of Decision (“ROD”). The Company’s engagement with government and Tribal

stakeholders is planned to continue over the next year in anticipation of the ROD being issued in Q4 2020.

The ROD will include the agency’s decision, alternatives considered and the plans for mitigation and

monitoring, if necessary. The anticipated timing of key permitting milestones is highlighted in Figure 1.

Figure 1 – Thacker Pass - Anticipated Permitting Process

Plan of Exploration

Effective as of August 1 2018, the Company updated the Measured and Indicated mineral resource at

Thacker Pass to 6.0 million tonnes of lithium carbonate equivalent (“LCE”) at 2,917 parts per million lithium

(“ppm Li”) (Measured 2.4 million tonnes at 2,948 ppm Li and Indicated 1.4 million tonnes 2,864 ppm Li,

respectively) and the Inferred mineral resource to approximately 2.3 million tonnes of LCE at 2,932 ppm Li.

Additional exploration targets have been identified outside the existing resource boundary. Prompted by

the discovery of lithium mineralization in the Southwest Basin in 2017, Lithium Nevada has submitted permit

applications for a proposed future exploration program in the southern and eastern areas of Thacker Pass

as identified in Figure 2.

Figure 2 – Thacker Pass - Final Plan of Operation Layout

Water Rights

Lithium Nevada has secured water rights that it believes will be sufficient to meet or exceed requirements

for Phase 1 production. Use of the water rights will be subject to customary regulatory approvals including

the transfer of the point of diversion, point of use and manner of use prior to production.

Commercial Agreements

North American Coal

Lithium Nevada and Sawtooth Mining LLC (“Sawtooth Mining”) executed a long-term contract mining

agreement (the “Mining Agreement”). Under the Mining Agreement, Sawtooth Mining will act as Lithium

Nevada’s contract miner for Thacker Pass. By engaging with Sawtooth Mining and The North American

Coal Corporation (“North American Coal”) during project development, Thacker Pass will be able to

leverage over 100 years of sedimentary mining experience and one of the best safety records in the

industry, which may help to further de-risk Project execution.

Sawtooth Mining has exclusive responsibility for the design, construction, operation, maintenance and all

mining and mine closure services of the Thacker Pass surface mine which will supply all of Lithium Nevada’s

lithium-bearing ore requirements. North American Coal, through its many subsidiaries, operates nine

surface coal mines and provides services at twenty aggregates quarries in the United States, with annual

total deliveries exceeding 70 million tonnes in 2018.

The Mining Agreement is effective immediately and Sawtooth Mining will play an active role assisting

Lithium Nevada with Thacker Pass’ permitting and development. In addition, Sawtooth Mining will provide

Lithium Nevada i) US$3.5 million (of which, US$1 million has already been received) and ii) engineering

services related primarily to mine design and permitting. During construction, Sawtooth Mining has agreed

to fund up to US$50 million to procure all mobile mining equipment required for Phase 1 operations.

Excluding these Sawtooth Mining investments, Lithium Nevada bears all costs of mining and mine closure.

TIC-The Industrial Company

Lithium Nevada has also entered into a design and build contract with TIC-The Industrial Company (“TIC”)

a division of Kiewit Corporation (“ Kiewit”), who has responsibility for the overall cost estimate in the

definitive feasibility study as well as engineering design of plant, water supply infrastructure, electrical

infrastructure, and general site works. Under the agreement, Lithium Nevada has the option to expand the

agreement to include TIC as the prime contractor for construction of the plant. TIC and Kiewit have

extensive experience building mines and processing facilities in Nevada and has access to an experienced

workforce of over 20,000 employees.

Process Engineering & Design

Process Testing Facility

The Thacker Pass process optimizes and reconfigures several commercially-proven techniques in

extractive metallurgy designed specifically for the processing of lithium bearing clays. To date, Lithium

Nevada’s process testing facility located in Reno, Nevada has produced over 3,000 kg of high-quality lithium

sulfate brine (“lithium sulfate”) from Thacker Pass ore. The process has been optimized by upgrading the

ore through a wet attrition process followed by a hydrocyclone to remove coarse material with relatively low

lithium content. The process test work has demonstrated an increase in lithium concentration by over 25%

which results in reduced acid consumption per tonne of LCE.

In addition to optimizing acid consumption, the process testing facility has also generated tailings samples

that are being used for stability and geochemical analysis, as well as feed samples to crystallizer vendors

who will design the equipment and provide performance guarantees.

Figure 3 shows the high-grade lithium slurry at Lithium Nevada’s process testing facility located in Reno,

Nevada.

Figure 3 – Thacker Pass - Process Testing Facility

Crystallizer Vendors

Experienced crystallization vendors have been engaged to develop the design and cost estimate for

process equipment to manufacture high-purity battery-quality lithium products from lithium sulfate, including

lithium carbonate and lithium hydroxide. A vendor has agreed to produce high-purity samples of lithium

carbonate and lithium hydroxide from lithium sulfate produced at the process testing facility in Reno,

Nevada. Lithium Nevada expects to send samples of Thacker Pass’ lithium products to potential customers

and partners to confirm quality specifications.

Patent Application

A patent application has been submitted to the United States Patent and Trademark Office to protect

fundamental aspects of Lithium Nevada’s proprietary lithium extraction technology, which includes

elements from the attrition process through to crystallization.

Environmental & Social Responsibility

Environmental Responsibility

Lithium Nevada’s objective is to produce the most environmentally responsible lithium products. The nature

of the deposit combined with the simple processing flowsheet and advanced pollution control technologies

are expected to result in low water and energy requirements and minimal greenhouse gas emissions. The

cogeneration facility produces a significant amount of carbon-free electricity that will be used to power the

processing facilities. As a result, Lithium Nevada may be in a position to produce the first and only carbon-

neutral lithium products.

Great Basin Sagebrush Restoration Fund

Consistent with the Company’s focus on environmental sustainability, Lithium Nevada and the University

of Nevada, Reno Foundation (“UNR Foundation”) founded the Great Basin Sagebrush Restoration Fund

(the “Fund”) in 2017. The Fund’s mission is to improve sagebrush habitat through cost-effective habitat

rehabilitation methods. The research has produced numerous successes in seed enhancement technology,

precision rehabilitation and genetics. The rehabilitation tools developed by the Fund have been recently

deployed to assist a federal agency with the rehabilitation of federal lands impacted by recent large wildfires

in Nevada. Several major mining companies and the BLM have recently made funding commitments, and

the Fund is currently the largest sagebrush restoration fund in the United States.

Community Relations

Lithium Nevada is committed to being a good neighbor and has developed a community engagement

strategy based on transparency, early engagement and frequent communication. Open houses have been

held in Winnemucca and Orovada to communicate progress of Thacker Pass and collect feedback. Lithium

Nevada is engaged with the local McDermitt Tribal government and has made commitments to provide

skills training, jobs and economic opportunities. A project engagement agreement has been executed with

the McDermitt Tribe to facilitate this process.

Feasibility Study

Building on the results of the 2018 PFS, Lithium Americas expects to release an NI 43 -101 compliant

definitive feasibility study by mid-2020, which will incorporate detail on the status of the permitting process,

outcomes of the 2018 exploration program, results generated by the process testing facility, updated project

design, costs and economic results . The Company is targeting an initial phase (“ Phase 1”) producti on

capacity of 20,000 tonnes per annum of battery-quality LCE and is evaluating the production of lithium

carbonate or lithium hydroxide depending on feedback from potential strategic partners and customers.

Financing Strategy

Lithium Americas intends to evaluate a variety of strategic financing options, including the possibility of a

joint venture partner for the development of Phase 1 of Thacker Pass. The Company expects to begin a

formal financing process in 2020.

Conference Call & Webcast

Lithium Americas will host a conference call and live webcast on Tuesday, October 1, 2019 at 9:00 am EDT

to discuss the Company’s recent developments at Thacker Pass and results of the definitive feasibility study

on the Cauchari-Olaroz lithium project.

The live webcast can be accessed through the following link:

https://event.on24.com/wcc/r/2099232/57153658E393C371DD436A5117EF9F8B

Analysts and investors are also invited to participate and ask questions using the dial -in numbers below:

Toronto: +1 416 764 8659

Vancouver: +1 778 383 7413

North American toll-free: +1 888 664 6392

The conference call and webcast will be available for playback on Lithium Americas’ website.

Qualified Persons

The scientific and technical information in this news release has been reviewed and approved by Dr. Rene

LeBlanc and Randal Burns, Qualified Persons for purposes of NI 43-101. Dr. LeBlanc is the Chief Technical

Officer for the Company and Mr. Burns is a Se nior Project Geologist at Lithium Nevada Corp., a wholly -

owned subsidiary of the Company.

Further information about the Project, including a description of the key assumptions, parameters,

description of sampling methods, data verification and QA/QC progr ams, methods relating to resources

and factors that may affect those estimates are contained in the technical report entitled “Technical Report

on the Pre-Feasibility Study for the Thacker Pass Project, Humboldt County, Nevada, USA” with an effective

date of August 1, 2018, which is available on SEDAR and on the Company’s website.

About The North American Coal Corporation:

The North American Coal Corporation is the operating company of NACCO Industries, Inc (NYSE: NC) .

North American Coal and its affiliates operate in the mining and natural resources industries through three

operating segments: Coal Mining, North American Mining and Minerals Management. The Coal Mining

segment operates surface coal mines pursuant to a service- based business model under long- term

contracts with power generation companies and activated carbon producers. The North American Mining

segment provides contract mining services for producers of aggregates and other minerals, primarily

operating and maintaining draglines and other equipment. The Minerals Management segment promotes

the development of the North American Coal’s oil, gas and coal reserves, generating income primarily from

royalty-based lease payments from third parties. For more information about NACCO Industries and North

American Coal, visit the company’s websites at www.nacco.com and www.nacoal.com.

About Lithium Americas:

Lithium Americas owns a 50% interest i n the Caucharí-Olaroz lithium project under construction in Jujuy,

Argentina. Lithium Americas through a wholly owned subsidiary, Lithium Nevada, owns 100% of the

Thacker Pass lithium project located in Nevada and the largest known lithium deposit in the United States.

The Company trades on both the Toronto Stock Exchange and on the New York Stock Exchange, under

the ticker symbol “LAC”.

For further information contact:

Lithium Americas Corp.

Investor Relations

Suite 300 – 900 West Hastings Street

Vancouver, BC, V6C 1E5

Telephone: 778-656-5820

Email: [email protected]

Website: www.lithiumamericas.com

Forward-Looking Statements & Information

This news release contains “forward-looking information” and “forward-looking statements” (which we refer

to collectively as forward- looking information) under the provisions of applicable securities legislation.

Forward-looking information can be identifi ed by the use of words such as seek”, “anticipate”, “plan”,

“continue”, “estimate”, “expect”, “may”, “will”, “project”, “predict”, “propose”, “potential”, “target”, “intend”,

“could”, “might”, “should”, “believe”, “scheduled”, “implement” and similar words or expressions. All

statements, other than statements of historical fact, are forward- looking information. Examples of forward-

looking information in this news release include, without limitation, with respect to the following matters or

the Company’s expectations relating to such matters: successful development of the Caucharí-Olaroz and

Thacker Pass projects, including timing, anticipated production, and results thereof; estimates of mineral

resources and underlying assumptions related thereto; timing and amount of futur e production; expected

outcome and timing of environmental surveys and permit applications and other environmental and social

matters; timing, cost, quantity, capacity and product quality of production at the Project; addition of a joint

venture partner an d financing options; completion and timing of the feasibility study; sufficiency of water

rights and regulatory approvals in connection therewith; future exploration activities and results thereof;

development of mineral resources and mineral reserves; processing and engineering technology; and

patent applications.

Forward-looking information may involve known and unknown risks, assumptions and uncertainties which

may cause the Company’s actual results or performance to differ materially. This information reflects the

Company’s current views with respect to future events and is necessarily based upon a number

of assumptions that, while considered reasonable by the Company today, are inherently subject to

significant uncertainties and contingences, and accordingly, the Company can give no assurance that these

assumptions and expectations will prove to be correct. With respect to forward-looking information included

in this news release, the Company has made assumptions regarding, among other things: current

technological trends; ability to fund, advance and develop the Project; the ability to operate in a safe and

effective manner; uncertainties relating to receiving and maintaining mining, exploration, environmental and

other permits or approvals; demand for lithium; impact of increasing competition in the lithium business,

including the Company’s competitive position in the industry; general economic conditions; stability and

support of legislative, regulatory and community environment in the jurisdiction where it operates; estimates

of and changes to market prices for lithium and commodities; exploration, development and construction

plans and costs for the Project; estimates of mineral resources and mineral reserves, including whether

mineral resources will ever be developed into mineral reserves; reliability of technical data; anticipated

timing and results of exploration, development and construction activities; the ability to achieve commercial

production; and accuracy of budget and construction estimates.

Forward-looking information also involve known and unknown risks that may cause actual results to differ

materially, these risks include, among others: the Project may not be developed as planned, and there is

uncertainty as to whether there will ever be production at the Project; cost overruns; market prices affecting

development of the Project; risks with ability to successfully secure adequate financing or addition of a joint

venture partner; risks to the growth of the lithium markets; lithium prices; inability to obtain required

governmental permits and that operations may be limited by government -imposed limitations; technology

risk; inability to achieve and manage expected growth; political risk associated with foreign operations; risks

associated with not having production experience; operational risks; changes in government regulations;

changes in environmental requirements; failure to obtain or maintain necessary licenses , permits or

approvals; insurance risk; receipt and security of mineral property titles and mineral tenure risk; changes in

project parameters; uncertainties associated with estimating mineral resources and mineral reserves,

including uncertainties regarding assumptions underlying such estimates; whether mineral resources will

ever be converted into mineral reserves; opposition to development of the Project; surface access risk;

geological, technical, drilling or processing problems; liabilities and risks; health and safety risks;

unanticipated results; unpredictable weather; unanticipated delays; reduction in demand for lithium; inability

to generate profitable operations; intellectual property risks; dependency on key personnel; currency and

interest rate fluctuations; and volatility in general market and industry conditions. Addit ional risks,

assumptions and other factors are set out in the Company’s management discussion analysis and most

recent annual information form, copies of which are available on SEDAR at www.sedar.com.

Although the Company has attempted to identify impor tant risks and assumptions, given the inherent

uncertainties in such forward- looking information, there may be other factors that cause results to differ

materially. Forward-looking information is made as of the date hereof and the Company does not intend,

and expressly disclaims any obligation to, update or revise the forward-looking information contained in this

news release, except as required by law. Accordingly, readers are cautioned not to place undue reliance

on forward-looking information.