Company Website: https://www.kaiseraluminum.com
FRANKLIN, Tenn. -- (Business Wire)

Kaiser Aluminum Corporation (NASDAQ: KALU) today published its 2025 Sustainability Report, highlighting the Company’s sustainable business practices and initiatives. The report reflects Kaiser’s commitment to its corporate values—to be a preferred investment, a preferred supplier, a preferred employer, a preferred customer, and a valued corporate citizen—which continue to guide how the Company pursues sustainable value creation and form the foundation of its culture and strategy. The report is available on the Company’s website at https://www.kaiseraluminum.com.

“I’m proud of our team and the progress we achieved in 2025 as we advanced our strategy and strengthened the foundation of our business,” said Keith A. Harvey, Chairman, President, and Chief Executive Officer. “Our values continued to guide our decisions and reinforce our commitment to operating responsibly, investing with discipline, and supporting the long-term sustainability of our operations. The completion of the most significant capital investment cycle in our recent history, combined with improved financial performance and continued progress toward our environmental goals, reflects the dedication of our people and our focus on creating lasting value for our customers, stockholders, and communities.”

Key highlights from Kaiser’s 2025 Sustainability Report include:

• Expansion of High-Recycled-Content Product Portfolio
  The Company introduced two new high-recycled-content products and commercialized alloy 6026A, which is fully compliant with the European Union Restriction of Hazardous Substances directive. These developments underscore the Company’s focus on delivering advanced engineered solutions that support a more resource efficient and sustainable materials ecosystem.

• Progress Toward Greenhouse Gas Emissions Reduction Goals
  The Company continued to advance its 2030 emissions intensity targets, achieving a combined Scope 1 and 2 emissions intensity that was 17% below the 2019 baseline. This progress reflects the first full year of the Warrick rolling mill operating on lower carbon grid power and ongoing efforts to expand high-recycled-content offerings.

• Investment in People and Talent Development
  The Company expanded learning and development programs designed to strengthen leadership capabilities, support employees at key career stages, and build a stronger manufacturing talent pipeline through growing partnerships with colleges and universities focused on skilled trades.

• Ongoing Commitment to Community Engagement
  Throughout 2025, the Company strengthened community partnerships through employee volunteerism, charitable sponsorships, and corporate giving, reflecting its commitment to being a responsible and valued community partner.

About Kaiser Aluminum Corporation

Kaiser Aluminum Corporation, headquartered in Franklin, Tenn., is a leading producer of semi-fabricated specialty aluminum products, serving customers worldwide with highly-engineered solutions for aerospace and high-strength, packaging, general engineering, automotive extrusions, and other industrial applications. The Company’s North American facilities produce value-added plate, sheet, coil, extrusions, rod, bar, tube, and wire products, adhering to traditions of quality, innovation, and service that have been key components of the culture since the Company was founded in 1946. The Company’s stock is included in the Russell 2000® index and the S&P Small Cap 600® index.

Available Information

For more information, please visit the Company’s website at www.kaiseraluminum.com. The website includes a section for investor relations under which the Company provides notifications of news or announcements regarding its financial performance, including Securities and Exchange Commission (SEC) filings, investor events, and earnings and other press releases. In addition, all Company filings submitted to the SEC are available through a link to the section of the SEC’s website at www.sec.gov, which includes: Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and Proxy Statements for the Company’s annual stockholders’ meetings, and other information statements as filed with the SEC. In addition, the Company provides a webcast of its quarterly earnings calls and certain events in which management participates or hosts with members of the investment community.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260629426740/en/

Contacts:

Addo Investor Relations
Investors@KaiserAluminum.com
629-252-7040

Source: Kaiser Aluminum Corporation