Kaiser Aluminum Corporation (NASDAQ: KALU) today published its 2024 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. The report is available on the Company’s website at https://www.kaiseraluminum.com.

“I’m proud of our team and their consistent dedication to our core values,” said Keith A. Harvey, Chairman, President, and Chief Executive Officer. “These values are not just principles; they are deeply embedded in our culture and drive our decision-making, operational discipline, and strategic direction. They underpin our commitment to delivering sustainable performance, acting as responsible stewards of capital, and creating lasting value for our stakeholders. Our 2024 achievements reflect our focus and our values.”

Key highlights from Kaiser’s 2024 Sustainability Report include:

• New Product Launch
  
  The Company successfully launched the KaiserSelect® Next Gen product line in 2024, building on its proprietary KaiserSelect® technology. This new highly-engineered offering, developed with sustainability in mind, delivers enhanced machining performance and consistency, enabling customers to improve operational efficiency while reducing material waste.

• Major Greenhouse Gas Emissions Reduction
  
  A significant capital investment project at the Kaiser Aluminum Warrick facility played a key role in achieving a 11% reduction in total Scope 1 and 2 GHG emissions intensity, along with a 19% reduction in Scope 1 and 2 absolute GHG emissions—marking a meaningful step toward achieving the Company’s 2030 emission intensity reduction targets.

• Empowering Plant-Level Leadership
  
  The Company introduced the Leaders of Leaders program—designed to empower plant leaders to build the next generation of leadership and strengthen management capabilities across operations.

• Ongoing Commitment to Community Engagement
  
  Throughout the year, Kaiser deepened community partnerships through employee volunteer efforts, charitable sponsorships, and corporate donations—reflecting the Company’s 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.

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