Exhibit 99.1 NEWS RELEASE TSX: LAC ● NYSE: LAC www.lithiumamericas.com Lithium Americas Reports First Quarter 2025 Results (All amounts in US$ unless otherwise indicated) May 15, 2025 – Vancouver, Canada: Lithium Americas Corp. (TSX: LAC) (NYSE: LAC) ("Lithium Americas" or the "Company") announced that it has filed its Quarterly Report on Form 10-Q, which includes the Company's consolidated interim financial statements ("Financials") for the three months ended March 31, 2025 ("Q1 2025"), and provided an upd ...

For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from To Commission file number: 001-41788 LITHIUM AMERICAS CORP. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 | Title of each class | Trading Symbol(s) | Name of each exchange on which registered | | --- | --- | --- | | ...

Lithium Americas Corp. (LAC) ended the recent trading session at $3.07, demonstrating a +1.66% swing from the preceding day's closing price. The stock exceeded the S&P 500, which registered a gain of 0.44% for the day. Elsewhere, the Dow gained 0.7%, while the tech-heavy Nasdaq added 0.27%.The lithium producer's shares have seen an increase of 29.06% over the last month, surpassing the Basic Materials sector's gain of 11.11% and the S&P 500's gain of 10.62%.The investment community will be paying close atte ...

In the latest trading session, Lithium Americas Corp. (LAC) closed at $2.87, marking a -1.37% move from the previous day. This change lagged the S&P 500's daily gain of 0.15%. Meanwhile, the Dow experienced a rise of 0.35%, and the technology-dominated Nasdaq saw a decrease of 0.09%.Prior to today's trading, shares of the lithium producer had gained 5.43% over the past month. This has outpaced the Basic Materials sector's loss of 1.29% and the S&P 500's loss of 0.21% in that time.The upcoming earnings relea ...

Company Performance - Lithium Americas Corp. (LAC) closed at $2.72, reflecting a +0.74% change from the previous day's closing price, underperforming the S&P 500's daily gain of 0.79% [1] - Over the past month, LAC shares experienced a loss of 6.9%, which is worse than the Basic Materials sector's loss of 4.43% and the S&P 500's loss of 3.56% [1] Earnings Expectations - The upcoming earnings report for Lithium Americas Corp. is anticipated to show an EPS of -$0.03, which represents a 25% improvement from the same quarter last year [2] Analyst Estimates - Recent modifications to analyst estimates for Lithium Americas Corp. are crucial as they reflect changing near-term business trends, with positive revisions indicating a favorable outlook on the company's health and profitability [3] - The Zacks Consensus EPS estimate has decreased by 31.82% over the last 30 days, and currently, Lithium Americas Corp. holds a Zacks Rank of 3 (Hold) [5] Industry Context - The Mining - Miscellaneous industry, which includes Lithium Americas Corp., is part of the Basic Materials sector and currently holds a Zacks Industry Rank of 155, placing it in the bottom 38% of over 250 industries [6] - Research indicates that the top 50% rated industries outperform the bottom half by a factor of 2 to 1 [6]

Funding and Financial Support - The Company has secured a DOE Loan totaling $2.26 billion, which includes $1.97 billion for construction costs and an estimated $289.6 million in interest over three years[23]. - The Company completed a public offering of 55 million Common Shares at $5.00 per share, raising approximately $262 million for Thacker Pass development[24]. - GM has committed $625 million to the Thacker Pass Project, including $430 million in direct cash funding for Phase 1 construction and a $195 million letter of credit facility[27]. - The Company expects to achieve fully funded status for Phase 1 development through the DOE Loan and investments from GM and Orion, with completion targeted for late 2027[33]. - The Company secured a $1.97 billion ATVM Loan from the DOE for Thacker Pass construction, with a maturity of 24 years[54]. - The financial assurance for full construction of Phase 1 is estimated at $73 million, with a third-party reclamation bond submitted in February 2025[72]. - The funding from the DOE Loan, US$430 million from GM, and existing cash are expected to fully fund the estimated remaining capital expenditures for Phase 1 of Thacker Pass[113]. - The Company may need to raise additional financing, which could dilute existing shareholders' interests and impose further restrictions on operations[176]. Project Development and Operations - The Thacker Pass Project aims for a total production capacity of 160,000 tonnes per year of lithium carbonate across five phases, with Phase 1 targeting 40,000 tonnes per year[16]. - A transloading terminal is being developed to provide direct access to the railroad for shipping reagents, expected to reduce transportation costs and emissions[44]. - The Company has engaged Bechtel for the engineering, procurement, and construction management of Phase 1, with major construction set to begin in May 2025[40]. - As of March 2025, site preparation for major construction at Thacker Pass is ongoing, with a focus on de-risking the construction schedule[41]. - The Thacker Pass area encompasses approximately 7,900 hectares and is expected to have a mine life of 85 years, processing a total of 1,057 million metric tonnes of ore[38]. - Detailed engineering is over 55% complete, with a target of over 90% completion by the end of 2025, and earthworks for the processing plant area are over 90% completed[47]. - All major federal, state, and local permits for Phase 1 operations have been achieved, with no identified issues preventing further progress[64]. - The Company aims to source the majority of reagents from North America to limit carbon emissions and reduce transportation costs[51]. - The Company received final water rights permits for Thacker Pass on June 30 and July 3, 2023, allowing the use of water production wells for construction activities[74]. - A Project Labor Agreement was signed in 2023, expected to create approximately 2,000 jobs, including 1,800 skilled labor contractors for Thacker Pass Phase 1[88]. - The Workforce Hub is being developed as a temporary housing facility for construction workers, with first occupancy targeted for the second half of 2025[91]. - The Company is collaborating with Great Basin College to develop a Workforce Development Training program tailored for Thacker Pass[80]. - The Company aims to sustainably manage waste and water resources, targeting a low-water and low-carbon operation at Thacker Pass[76]. - The Company is focused on reducing energy consumption and carbon emissions as part of its environmental stewardship initiatives[76]. Market and Demand Outlook - Global lithium demand is expected to more than double by 2030, with EV sales projected to increase by 26% globally in 2024[50]. - Production from Thacker Pass Phase 1 is estimated to support lithium needs for up to 800,000 electric vehicles annually[50]. - Development of Thacker Pass is highly dependent on projected demand for lithium-based products, particularly lithium-ion batteries for electric vehicles, which currently have limited market share[133]. - The market price of lithium products fluctuates widely and is influenced by external economic factors, which could adversely affect the Company's revenues and financial condition[134]. Risks and Challenges - The Company lacks a history of completing mining and chemical processing projects, increasing uncertainty regarding its future success[114]. - Inherent risks in establishing new mining operations, including unexpected costs and delays, could impact profitability at Thacker Pass[115]. - The Company faces potential opposition from various groups that could delay or prevent project development despite its commercial viability[129]. - Changes in government laws and regulations, including those related to environmental compliance and permitting, may affect the development of Thacker Pass[123]. - Mineral resource and reserve estimates are inherently uncertain and may be inaccurate, which could adversely affect the Company's financial position[127]. - The Company cannot guarantee that production estimates for Thacker Pass will be achieved, which could materially affect cash flows and profitability[131]. - Increased political involvement in the lithium industry may lead to both opportunities and challenges for the Company, particularly regarding domestic supply development[119]. - The evolving geopolitical landscape and potential new tariffs could adversely affect the Company's business and financial results[120]. - The novel process for producing lithium carbonate from Thacker Pass has not been demonstrated at commercial scale, posing risks of inefficiencies, unforeseen costs, and delays[132]. - Actual costs and production may vary significantly from current estimates due to factors such as resource availability, inflation, and unexpected operational challenges[135]. - The Company anticipates continuing negative cash flows from operations until profitable production is achieved at Thacker Pass, relying on capital raising to meet obligations[140]. - The Company has not generated significant revenues from operations to date and expects to incur negative operating cash flows through the construction and ramp-up period[141]. - Thacker Pass is the Company's sole material mining project, making its successful development critical to the Company's overall business viability[142]. - Compliance with stringent environmental regulations is essential, as non-compliance could lead to delays and increased costs[143]. - The lithium production industry is highly competitive, requiring significant capital and resources, which may pose challenges in securing financing and personnel[150]. - The Company faces risks related to market conditions, including variability in demand for lithium products and competition from other producers[153]. - Global economic uncertainties, including the Russian war in Ukraine and inflation, may adversely affect the Company's business and financial position[155]. Corporate Governance and Compliance - The Company holds approximately 7% of outstanding Common Shares and a 38% asset-level interest in Thacker Pass, which may influence corporate actions[164]. - The potential conversion of the Orion Note could result in Orion holding up to 19.99% of the Company's outstanding Common Shares, significantly impacting shareholder dynamics[168]. - The Company's debt agreements, including the DOE Loan and the Orion Note, impose restrictions that limit operational flexibility and could lead to defaults if covenants are breached[169]. - As of December 31, 2024, the Company had no long-term debt, but it may incur substantial additional indebtedness in the future[181]. - The Company may be classified as a Passive Foreign Investment Company (PFIC) for the 2024 taxation year, which could lead to greater tax liabilities for U.S. shareholders[210]. - If classified as a PFIC, U.S. shareholders may face adverse tax consequences, including interest charges and additional reporting obligations[213]. - The Company anticipates increased regulatory reporting requirements and associated costs due to the loss of its foreign private issuer (FPI) status, effective January 1, 2025[199]. - As of January 1, 2025, the Company will be required to file quarterly reports on Form 10-Q and current reports on Form 8-K, increasing compliance costs[200]. - The Company is restricted for three years from pursuing certain strategic transactions to maintain the tax-free status for shareholders, which may limit its operational flexibility[205]. - Changes in U.S. and Canadian tax laws could increase the Company's tax liabilities, adversely affecting its operating results and cash flows[207]. - The Organisation for Economic Co-operation and Development's BEPS initiatives and Canada's Global Minimum Tax Act could materially impact the Company's tax situation and cash flows[208]. - Any indemnification claims under the Tax Indemnity and Cooperation Agreement could be substantial and may adversely affect the Company[209]. Human Resources and Labor - As of December 31, 2024, the Company had 79 full-time employees across its offices in Vancouver, Reno, and Winnemucca[84]. - The Company completed 195,573 work hours at Thacker Pass in 2024 without a serious injury or lost-time incident[92]. - The Company is committed to hiring locally, with 100% of new hires in 2024 at the Winnemucca or Reno offices being local to Nevada[87]. - The Company’s growth relies heavily on retaining and attracting key personnel in a competitive market, with labor shortages potentially impacting operations[187]. - The Company has not purchased any "key-man" insurance for its key personnel, which could pose risks if key individuals are lost[188]. Cybersecurity and Risk Management - Cybersecurity threats continue to grow, and while the Company maintains cyber insurance, it may not fully protect against all risks stemming from cyber incidents[195]. - The Company relies on internal and third-party systems to manage sensitive information and key business processes, highlighting the importance of cybersecurity risk management[216].

Financial Performance - As of December 31, 2024, the company had approximately $594.2 million in cash, cash equivalents, and restricted cash, an increase from $195.8 million in 2023[4][9] - The net loss for the year ended December 31, 2024, was $42.6 million, compared to a net loss of $5.1 million in 2023, reflecting higher transaction costs and a loss on the fair value of financial instruments[9][10] - The company capitalized $179.9 million in construction capital costs and other project-related costs during 2024[4] Project Development - A joint venture with GM was closed to fund Thacker Pass with a total cash and letters of credit of $625 million, with GM acquiring a 38% ownership stake[6] - The company secured a $2.26 billion loan from the U.S. Department of Energy for financing the construction of processing facilities for Phase 1 of Thacker Pass[6] - The company completed a public offering of 55 million common shares at $5.00 per share, raising approximately $275 million in gross proceeds[6] - The Thacker Pass project has a Proven and Probable Reserve estimate of 14.3 million tonnes of lithium carbonate equivalent at an average grade of 2,540 ppm lithium[7] - The company targets a nominal production capacity of 40,000 tonnes per year of battery-grade lithium carbonate for Phase 1, with plans for up to five phases targeting a total capacity of 160,000 tonnes per year[7][12] - Major construction at Thacker Pass is expected to begin with permanent concrete placement in May 2025, with detailed engineering over 55% complete[6] - The company anticipates first occupancy of the Workforce Hub for construction workers in the second half of 2025[6] - The Company is focused on advancing and developing the Thacker Pass project to produce battery-grade lithium, which is critical for the electric vehicle market[16] Market Demand and Risks - Demand for lithium is expected to grow, supported by the expansion of the electric vehicle and lithium-ion battery markets[16] - The Company faces uncertainties related to securing additional financing and the ability to operate without adverse impacts from climate change or severe weather conditions[16] - There are risks associated with the accuracy of mineral resource and reserve estimates, which could materially impact the Company's operations[16] - The Company anticipates potential impacts from inflation, currency exchange rates, and general economic conditions on its operations[16] - The Company is subject to regulatory risks related to mining operations and potential changes in governmental policies[16] - The Company acknowledges the potential for increased competition in the lithium market, which may affect its competitive position[16] - The Company does not guarantee that its forward-looking statements will prove to be accurate due to various risk factors[17] Community and Environmental Engagement - The Company is engaged with local communities and stakeholders, including the Fort McDermitt Paiute and Shoshone Tribe, to ensure constructive relationships[16] - The Company emphasizes the importance of environmental, social, governance, and sustainability matters in its operations[16]

Lithium Americas Corp. (LAC) closed the most recent trading day at $2.56, moving +1.59% from the previous trading session. The stock outpaced the S&P 500's daily loss of 1.22%. At the same time, the Dow lost 1.55%, and the tech-heavy Nasdaq lost 0.35%.Coming into today, shares of the lithium producer had lost 12.2% in the past month. In that same time, the Basic Materials sector lost 1.13%, while the S&P 500 lost 2.31%.Investors will be eagerly watching for the performance of Lithium Americas Corp. in its u ...

Company Performance - Lithium Americas Corp. closed at $3.05, reflecting a -0.97% change from the previous day, underperforming the S&P 500 which lost 0.43% [1] - The stock has decreased by 0.96% over the past month, while the Basic Materials sector gained 3.69% and the S&P 500 increased by 2.6% [1] Earnings Projection - The company is expected to report earnings of -$0.02 per share, indicating a year-over-year growth of 75% [2] Analyst Sentiment - Recent shifts in analyst projections for Lithium Americas Corp. should be monitored, as positive changes often reflect a favorable outlook on the company's business health and profitability [3] Zacks Rank System - The Zacks Rank system, which ranges from 1 (Strong Buy) to 5 (Strong Sell), has shown that 1 stocks have generated an average annual return of +25% since 1988 [5] - Lithium Americas Corp. currently holds a Zacks Rank of 3 (Hold), with a consensus EPS projection that has increased by 2.37% in the past 30 days [5] Industry Context - The Mining - Miscellaneous industry, part of the Basic Materials sector, has a Zacks Industry Rank of 173, placing it in the bottom 32% of over 250 industries [6] - Research indicates that the top 50% rated industries outperform the bottom half by a factor of 2 to 1 [6]

Core Insights - Lithium Americas Corp. (LAC) has reported an increase in mineral resource and reserve estimates for the Thacker Pass lithium project, which is now recognized as the largest measured lithium reserve and resource globally [1][2][3] Mineral Resource and Reserve Estimates - The proven and probable mineral reserve estimate is now 14.3 million tons (Mt) of lithium carbonate equivalent (LCE) at an average grade of 2,540 parts per million (ppm) lithium, reflecting a 286% increase since the November 2022 Feasibility Study [3] - The measured and indicated mineral resource estimate stands at 44.5 Mt LCE at an average grade of 2,230 ppm lithium, marking a 177% rise since the November 2022 Feasibility Study [3] Project Expansion Plans - The expansion plan aims to produce 160,000 tons per year (t/y) of battery-quality lithium carbonate (Li2CO3) in four phases, each producing 40,000 t/y, with construction of each phase projected to be spaced four years apart [4] - Phase 1 is expected to create nearly 2,000 jobs during construction and is targeted for completion in late 2027 [4] Market Performance - Shares of LAC have declined by 42.7% over the past year, compared to an 18% decline in its industry [5]