LYB · LyondellBasell Industries N.V.

HOUSTON and LONDON, Aug. 14, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB) today announced it has declared a dividend of $0.69 per share, to be paid to shareholders on Aug. 31, 2026, with an ex-dividend and record date of Aug. 24, 2026. About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. Barrie Lee LyondellBasell 713-309-7575 [email protected] Source: LyondellBasell

Net income: $0.6 billion, $1.4 billion excluding identified items 1 Diluted earnings per share: $1.71 per share; $4.30 per share excluding identified items EBITDA: $1.3 billion, $2.1 billion excluding identified items Strengthened the portfolio through the divestiture of select European assets, structurally improving the cost position and aligning the company's European footprint to its strategy Continued to deliver meaningful fixed-cost reductions and lower capital expenditures through the Cash Improvement Plan Capitalized on improved market conditions through disciplined commercial execution HOUSTON and LONDON, July 31, 2026 (GLOBE NEWSWIRE) -- LyondellBasell Industries (NYSE: LYB) (the "company") today announced results for the second quarter 2026. Comparisons with the prior quarter and second quarter 2025 are available in the following table: Table 1 - Earnings Summary Millions of U.S. dollars (except share data) Three Months Ended Six Months Ended June 30, 2026 March 31, 2026 June 30, 2025 June 30, 2026 June 30, 2025 Sales and other operating revenues $ 9,177 $ 7,197 $ 7,658 $ 16,374 $ 15,335 Net income 559 125 115 684 292 Diluted earnings per share 1.71 0.38 0.34 2.10 0.88 Weighted average diluted share count 323 323 322 323 323 EBITDA 1 1,252 568 606 1,820 1,261 Excluding Identified Items 1 Net income excluding identified items $ 1,401 $ 163 $ 202 $ 1,564 $ 312 Diluted earnings per share excluding identified items 4.30 0.49 0.62 4.80 0.95 Loss on sale of business, pre-tax 734 — — 734 — Asset write-downs, pre-tax 74 15 32 89 32 Cash Improvement Plan costs, pre-tax 31 — 20 31 20 Site closure costs, pre-tax 30 4 — 34 117 European transaction costs, net of transition service agreement income, pre-tax (11 ) 10 10 (1 ) 10 (Income) loss from discontinued operations, pre-tax 17 18 47 35 (149 ) EBITDA excluding identified items 2,127 615 715 2,742 1,291 (1) See “Information Related to Financial Measures” for a discussion of the company’s use of non-GAAP financial measures and Tables 2-4 for reconciliations or calculations of these financial measures. “Identified items” include adjustments for lower of cost or market ("LCM"), gain or loss on sale of business, asset write-downs in excess of $10 million in aggregate for the period, Cash Improvement Plan costs, site closure costs, European transaction costs, net of transition service agreement income, and discontinued operations. “In a dynamic macroeconomic environment, we delivered exceptional results through deliberate commercial actions, the strength of our advantaged portfolio and improved market conditions supporting margin expansion,” said Peter Vanacker, LYB chief executive officer. “We responded quickly to the global supply disruption by increasing operating rates to serve our customers, demonstrating the flexibility and resilience of our global asset base and supply chain. We also took decisive actions with the divestment of select European assets and continued progress on our Cash Improvement Plan. These actions are repositioning LYB with a structurally lower cost base providing improved margins and enhanced cash generation. We continue to prioritize safety, reliability, cost discipline and capital allocation to deliver sustainable value for our shareholders.” SECOND QUARTER 2026 RESULTS The company reported net income for the second quarter 2026 of $559 million, or $1.71 per diluted share. During the quarter, the company recognized $842 million of identified items, net of tax. These items, which impacted second quarter earnings by $2.59 per diluted share, included the loss on sale from the divestiture of select European assets and a write down related to an Olefins & Polyolefins (O&P) – Americas joint venture. Second quarter 2026 EBITDA was $1.3 billion, or $2.1 billion excluding identified items. In the second quarter, geopolitical instability resulted in dynamic and supply-constrained market conditions across all business segments. In the O&P – Americas segment, results

HOUSTON and MORRISTOWN, N.J., July 28, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB) and Chemical Marketing & Economics, Inc. (CME) today announced that Peter Vanacker, LYB CEO, will receive the CME STEM Leadership Award™ for Corporate Reinvention on Dec. 11, 2026 in New York City. The other honorees will be Omar Yaghi, 2025 Nobel Laureate in Chemistry (Extraordinary Fundamental Research) and Ann Ziff, Chairman of the Metropolitan Opera Board (Lifetime Achievement). LYB is a leader in the global chemical industry, guided by its purpose of creating solutions for everyday sustainable living. The company is one of the world's largest producers of polymers and a leader in polyolefin technologies. “Peter Vanacker exemplifies corporate reinvention at the highest level, demonstrating how disciplined strategy and visionary leadership can reshape an entire enterprise,” said CME Co-Chair Shah Karim. “Through initiatives focused on value enhancement, portfolio optimization and bold expansion of circular solutions, he has positioned the company for enduring value creation and industry leadership,” added CME Co-Chair and Legal Counsel Ksenia Takhistova. “He champions the essential connection between science, engineering, and sustainable growth – recognizing that transformative leaders accelerate the breakthroughs our world depends on,” said STEM Leadership Awards founder and ACS Fellow George Rodriguez. “Reinvention is about building a company that can create value through change,” said LYB CEO Peter Vanacker. “At LYB, we continue to strengthen our portfolio, advance circular and low-carbon solutions at the right pace, and develop the capabilities and STEM talent pipeline needed to shape the future of our industry. I am honored by this recognition from CME and grateful to the LYB teams whose resilience and commitment make our progress possible.” Under Vanacker’s leadership as LYB CEO, the company has remained anchored in its long-term strategy through a volatile market cycle, balancing disciplined near-term actions with a clear focus on long-term value creation. By upgrading its core businesses, taking decisive portfolio actions and preserving flexibility for future growth, LYB continues to position the business for enduring performance and industry leadership. About Peter Vanacker Peter Vanacker is chief executive officer of LyondellBasell, a global leader in the chemical industry delivering solutions for everyday sustainable living. Before joining LYB, he served as president, CEO and chair of the executive committee at Neste Corporation, and previously as CEO of both CABB Group GmbH and Treofan Group. Earlier in his career, he held senior leadership roles at Bayer AG, including executive vice president of the global polyurethanes business and member of the executive committee of Bayer Material Science (now Covestro). An international executive, Vanacker has worked across Belgium, Brazil, China, Finland, Germany and the United States. He earned his master’s degree in chemical engineering, specializing in polymers, from the University of Ghent. He serves on the supervisory board of Symrise AG, a leading global flavor, nutrition, scent and care company recognized with top CDP sustainability ratings. He also chairs the board of directors and serves on the executive committee of the American Chemistry Council, contributing to its energy, climate, environment, sustainability, finance, audit and plastics committees. In addition, he is a member of the board of the International Consortium of Chemical Associations. About CME STEM Leadership Awards™ Established in 2012, the CME STEM Leadership Awards™ honor exceptional leaders who harness chemistry’s transformative power to solve global challenges. Past honorees span industry, finance, philanthropy, and academia, including Roy Vagelos, Seifi Ghasemi, Len Blavatnik, Albert Bourla, Martin Brudermüller, Jim Fitterling, Henry Kravis, Daniel D'Aniello, Craig Venter, and seven Nobel Laureates such

ROTTERDAM, Netherlands, July 07, 2026 (GLOBE NEWSWIRE) -- Global chemical leader LyondellBasell (NYSE: LYB) today announced an innovative flexible packaging solution for Marabou chocolate bars, developed in collaboration with Mondelez International, Amcor, Taghleef Industries and other key industry players. Using LYB Circulen Revive polymers with 100% attributed recycled content via an ISCC PLUS-certified mass balance approach, Mondelez is now able to offer packaging sourced from 75% recycled content, helping transform hard-to-recycle post-consumer mixed plastic waste into high-quality materials for food packaging. “Our collaboration with Mondelez illustrates our shared vision for the future and highlights our ability to provide innovative, high-quality circular solutions tailored to demanding specifications,” said Yvonne van der Laan, executive vice president, Sustainable Solutions and Technology Business, LYB. “We’re committed to making circular and low carbon solutions work for businesses while creating solutions for everyday sustainable living.” Scaling circular polymers through the LYB integrated ecosystem As LYB continues to expand its circular solutions, the company plans to supply future polymers for Marabou packaging through MoReTec -1, its first commercial-scale catalytic chemical recycling plant under construction in Wesseling, Germany. Once operational, MoReTec -1 will strengthen access to circular feedstock within the LYB integrated ecosystem, which connects advanced sorting and recycling infrastructure with the company’s existing crackers and polymerization assets. “This collaboration demonstrates how LYB can connect chemical recycling innovation with the scale and reach of our existing production network,” said LYB CEO Peter Vanacker. “As we advance MoReTec -1, we expect the facility to support future polymer supply for Marabou packaging and strengthen our ability to convert hard-to-recycle plastic waste into circular feedstocks for our existing assets. This integrated approach positions LYB to deliver value while advancing our circular and low carbon strategy.” Once operational, the MoReTec -1 facility is designed to produce 50,000 metric tons of feedstock annually for use in existing LYB production units, enabling the production of recycled polymers. Source One Plastics, an LYB joint venture located in Eicklingen, Germany, processes mixed plastic waste into feedstock suitable for chemical recycling, supporting future supply to MoReTec -1. LYB currently sources recycled feedstock for Circulen Revive polymer production from third-party pyrolysis oil producers. Collaborating across the packaging value chain Solutions like the Marabou chocolate bar packaging depend on collaboration across the value chain to help advance a more circular economy for plastics. LYB supplies the circular polymers, Taghleef Industries develops the base film and Amcor converts the material into the final flexible packaging solution for Mondelez. “Looking ahead, our ambition is to increase the use of recycled plastic in our packaging materials, and we’re proud to collaborate with multiple value chain players, including LYB and other industry leaders, on this journey,” said Packaging Sustainability Manager at Mondelez International, Richard Akkermans. “For consumers, the message is simple: plastic packaging can be recycled and allocated back into new food packaging. This initiative shows what becomes possible when brand owners, recyclers, packaging material producers and converters work together to turn circular ambition into commercial reality.” Meeting brand-owner demand for circular packaging solutions The collaboration reflects growing demand from brand owners for high-performance circular polymers that can support recycled-content goals

HOUSTON and LONDON, July 06, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB), a leader in the global chemical industry, will announce its second-quarter 2026 financial results before the U.S. market opens Friday, July 31, followed by a webcast and teleconference to discuss the results at 11 a.m. EDT. Teleconference and webcast details Friday, July 31, 2026 11 a.m. EDT Hosted by David Dennison, head of investor relations Access the webcast 10 to 15 minutes prior to the start of the call at www.lyb.com/earnings . Toll-free teleconference dial-in numbers Participant/Guest toll-free: 877-407-8029 Participant/Guest toll: 201-689-8029 Participant/Guest: CallMe link Presentation slides Presentation slides will be available at the time of the teleconference and afterward at www.lyb.com/earnings . Replay information A replay of the call will be available from 1 p.m. EDT July 31 until August 31, 2026. The replay dial-in numbers are: Toll-Free: 877-660-6853 Toll: 201-612-7415 Access ID: 13746218 About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. Sarah Allen LyondellBasell 713-623-3643 [email protected] Source: LyondellBasell

HOUSTON and LONDON, May 22, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB) today announced it has declared a dividend of $0.69 per share, to be paid to shareholders on June 8, 2026, with an ex-dividend and record date of June 1, 2026. About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. Sarah Allen LyondellBasell 713-623-3643 [email protected] Source: LyondellBasell

Net income: $125 million, $163 million excluding identified items 1 Diluted earnings per share: $0.38 per share; $0.49 per share excluding identified items EBITDA: $568 million, $615 million excluding identified items Middle East war has steepened the global cost curve for the petrochemical industry LYB is leveraging cost-advantaged production to capture upside while maintaining financial resilience Demonstrating agility by increasing operating rates, optimizing production and capturing favorable pricing in dynamic markets with support from value-enhancing initiatives executed over the last three years Advancing transformation of the LYB portfolio with the sale of four European sites to right-size and enhance the future footprint Continuing work to reduce fixed costs, maintaining discipline in capital spending and proactively managing levels of working capital to support cash improvement in 2026 HOUSTON and LONDON, May 01, 2026 (GLOBE NEWSWIRE) -- LyondellBasell Industries (NYSE: LYB) (the "company") today announced results for the first quarter 2026. Comparisons with the prior quarter and first quarter 2025 are available in the following table: Table 1 - Earnings Summary Millions of U.S. dollars (except share data) Three Months Ended March 31 2026 December 31 2025 March 31 2025 Sales and other operating revenues $7,197 $7,091</td

Transaction with AEQUITA advances company’s portfolio realignment ROTTERDAM, Netherlands, May 01, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB) today announced that it has successfully completed the sale of select European olefins and polyolefins assets, and the associated business and corporate functions, to AEQUITA as a key milestone in the company’s European strategic assessment. The transaction follows completion of required employee information and consultation processes and satisfaction of customary regulatory and closing conditions. The divestiture supports the company’s strategy to grow and upgrade the core by further concentrating on assets and businesses with durable competitive advantages and stronger long-term returns, while enhancing financial flexibility and supporting disciplined capital allocation. The assets sold in the transaction are located in Berre (France), Münchsmünster (Germany), Carrington (UK), and Tarragona (Spain). LYB will continue to operate its Advanced Polymer Solutions (APS) business in Tarragona. “This transaction represents a pivotal achievement in our transformation,” said Peter Vanacker, chief executive officer of LyondellBasell. “By finalizing this sale, we have refined our portfolio and enhanced our capacity to allocate capital toward high-return opportunities that contribute to long-term value creation.” Vanacker added, “Europe remains an integral market for LYB; we will continue to invest where value creation is strong, reinforcing our leadership in specialty polymers, building a profitable Circular & Low Carbon Solutions business, and advancing our leadership in technology and innovation. We extend our gratitude to our colleagues transferring as part of this transaction for their contributions, professionalism, and resilience throughout the process. As they transition to a standalone business under AEQUITA ownership, we wish them and the new company success in the next chapter ahead.” Following today’s closing, the divested business will be named and operated as Velogy. “This closing marks an important step in building a scaled and competitive European polymers platform, a sector where we see strong fundamentals and attractive long-term value creation potential,” said Dr.-Ing. Axel Geuer, AEQUITA-Founder and Chairman. “We thank LyondellBasell for the constructive collaboration throughout the process and are excited to begin the next step of partnering with Velogy’s employees to reinforce and further enhance the Company’s leading services to customers and suppliers.” LYB remains committed to operating its remaining assets safely and reliably and to continuing to serve customers and partners with the same high standards. Advisors Citi and J.P. Morgan Securities LLC acted as financial advisors, and Linklaters LLP acted as legal counsel to LyondellBasell. About LyondellBasell We are LyondellBasell (NYSE: LYB) ― a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors, and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow <a href="https://www.globenewswire.com/Tracker?data=XeybTTD9XoU96X1NnvDnnD2H5Jpda6UdhfC0qjNSani-SgYdRauS4s5XaLxM

HOUSTON, April 14, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB), a global leader in the chemical industry, has released its 2025 Sustainability Report, Vision to Value: Maintaining Our Focus . The report outlines how LYB maintained strong operational performance, achieved industry‑leading safety performance, and advanced circular and low‑carbon solutions during 2025. “In 2025, despite a challenging environment, we demonstrated what focus, discipline and a clear vision can deliver,” said Peter Vanacker, LYB chief executive officer. “We deepened partnerships across the value chain, strengthened transparency about the enablers that influence the pace of progress, and continued to make focused investments in sustainability that position us to deliver long-term value for our customers and LYB. Looking ahead, I’m confident that the actions we are taking, grounded in innovation, collaboration and strong operational performance, will help to accelerate progress and unlock opportunity in the years to come.” 2025 sustainability highlights include: Industry ‑ leading safety performance : LYB achieved a total recordable incident rate of 0.120, the lowest in company history, reflecting continued focus on safety, reliability and disciplined execution across operations. Lower emissions through disciplined portfolio and operational actions : LYB reduced scope 1 and 2 greenhouse gas emissions by approximately 3.2 million metric tons and achieved an estimated 29% reduction in annual scope 3 emissions (versus a 2020 baseline), largely due to discontinuing crude oil refining at the Houston Refinery site. Advancing circular and low ‑ carbon solutions : LYB produced and marketed approximately 206,000 metric tons of recycled and renewable‑based polymers through mechanical recycling, chemical recycling and biocircular feedstocks, supporting growing customer demand for circular and lower‑carbon materials. Building future capacity with capital discipline : Construction continued on MoReTec ‑1, the company’s first commercial‑scale catalytic chemical recycling facility in Wesseling (Cologne), Germany, targeted to start up in 2027, while maintaining disciplined pacing of investments in line with market conditions. Supporting customer needs for product sustainability information : Our life cycle assessment and product carbon footprint methodologies were independently certified, supporting more robust and transparent product carbon footprint information for customers. The report is structured around the company’s refreshed sustainability approach, designed to align with the business strategy, and clearly demonstrate how sustainability supports performance, competitiveness and long‑term value creation. The approach centers on three interconnected elements: building on strong foundations of operational excellence and governance; unlocking change through people, partnerships and investment; and pioneering circular and low‑carbon solutions. Visit LYB Sustainability to access the full 2025 Sustainability Report and explore additional disclos

HOUSTON and LONDON, April 10, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB) today announced the internet availability of proxy materials for its 2026 annual general meeting of shareholders to be held on Friday, May 22, 2026, at 8 a.m. Central European Summer Time. The LYB annual report on Form 10-K for the year ended December 31, 2025, and proxy statement for its 2026 annual general meeting of shareholders have been filed with the U.S. Securities and Exchange Commission (SEC), and may be viewed on the LYB investor website at Investors.LyondellBasell.com by selecting “Financials,” then “Annual Reports.” Shareholders may obtain hard copies of these proxy materials at no charge by emailing [email protected] or writing to our offices at LyondellBasell Industries, 4th Floor, One Vine Street, London W1J 0AH, United Kingdom, Attention: Corporate Secretary. Pursuant to the SEC Notice and Access rules, companies may satisfy their obligation to deliver proxy materials by delivering a Notice of Internet Availability of Proxy Materials (Notice) to shareholders, providing internet access to the proxy materials, and providing a printed set of proxy materials by mail to any shareholder who requests them. LYB has elected to take full advantage of these rules to minimize impact on the environment and to maximize cost savings relating to the printing of the proxy materials. Shareholders of record as of the close of business on April 24, 2026, are entitled to vote at the annual meeting. Voting instructions for internet, telephone, mail and in‑person options are provided in the proxy materials and on the Notice. LYB expects to begin mailing the Notice promptly after the April 24, 2026 record date and to complete that mailing within five business days. About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. ### Media inquiries: Nick Facchin [email protected] 713-623-3643 Investor inquiries: David Kinney <a href="https://www.globenewswire.com/Tracker?data=-rYSg0kLnsJiZdGxO985ge6n0Kviwn5f56L38PF3J0XMALBE

HOUSTON and LONDON, April 06, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB), a leader in the global chemical industry, will announce its first-quarter 2026 financial results before the U.S. market opens Friday, May 1, followed by a webcast and teleconference to discuss the results at 11 a.m. EDT. Teleconference and webcast details Friday, May 1, 2026 11 a.m. EDT Hosted by David Kinney, head of investor relations Access the webcast 10 to 15 minutes prior to the start of the call at www.lyb.com/earnings . Toll-free teleconference dial-in numbers Participant/Guest toll-free: 877-407-8029 Participant/Guest toll: 201-689-8029 Participant/Guest: CallMe link Presentation slides Presentation slides will be available at the time of the teleconference and afterward at www.lyb.com/earnings . Replay information A replay of the call will be available from 1 p.m. EDT May 1 until May 31, 2026. The replay dial-in numbers are: Toll-Free: 877-660-6853 Toll: 201-612-7415 Access ID: 13746217 About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. Nick Facchin LyondellBasell 713-623-3643 [email protected] Source: LyondellBasell

HOUSTON and LONDON, March 16, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB) today announced the appointment of David Dennison, a seasoned leader with decades-long service at LYB, as the new head of investor relations, effective May 8, 2026. He succeeds Dave Kinney, who will retire after nearly 35 years of service. “I am pleased to welcome David Dennison as our next head of investor relations,” said Agustin Izquierdo, executive vice president and chief financial officer. “His significant experience in global petrochemical markets will help us continue to shape investor understanding and foster clear, two-way engagement with the shareholder community.” David Dennison joined LYB in 2007, and in total brings nearly 30 years of industry experience to the role. He has held leadership roles across the company’s planning, commercial and strategic functions, including leading several Intermediates and Derivatives businesses. Most recently, he served as a vice president in the Circular and Low Carbon Solutions business. Before LYB, Dennison worked for Eli Lilly and Co. and Albemarle Corp. He holds a B.S. in chemical engineering from Texas A&M University and an MBA from The Wharton School. “In David, we have a thoughtful leader who reflects the depth and breadth of our leadership development pipeline and management succession process,” said Izquierdo. “LYB will continue to benefit from the wise counsel and perspective of leaders like him, as it has for many years with Dave Kinney. Dave has made meaningful contributions across the organization, applying his leadership and market expertise to support the company’s long-term performance. I am grateful for all he’s helped us accomplish.” “It is a true honor to succeed Dave Kinney and guide the company’s investor relations function by furthering how we communicate our long-term strategy and ensure we protect the confidence investors place in LYB,” said Dennison. “I look forward to engaging with investors and collaborating with so many talented colleagues, as LYB continues to advance plans to drive shareholder value and position the company for future success.” About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. ### Media inquiries: Nick Facchin [email protected] 713-623-3643 Investor inquiries: David Kinney David.kinney@lyondellbasell.

HOUSTON and LONDON, March 10, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB), a leader in the global chemical industry, today announced that Agustin Izquierdo, executive vice president and chief financial officer, will participate in a fireside chat at the 2026 J.P. Morgan Industrials Conference in Washington, D.C., on Tuesday, March 17, 2026, at 3:40 p.m. EDT. Webcast and Presentation Slides Access A live webcast can be accessed at the time of the event at https://investors.lyondellbasell.com/events-and-presentations/default.aspx . A replay of the event will be available at the same link within 24 hours following the webcast. About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. Source: LyondellBasell

HOUSTON, Feb. 23, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE:LYB) today announced updates to its 2030 climate and circularity goals amid the need for disciplined capital allocation, evolving market conditions and regulatory developments. The goals remain ambitious, while balancing the need to adjust for near-term achievability. The company’s three-pillared strategy remains unchanged: growing and upgrading the core, building a profitable circular and low-carbon business, and stepping up performance and culture. To ensure alignment with the strategy and reflect the realities of today’s operating environment, the updated goals are as follows: Scope 1 and 2 greenhouse gas emissions reduction: 32% by 2030, relative to a 2020 baseline. 1 Circularity: produce and market 800,000 metric tons of recycled and renewable-based polymers annually by 2030. 2 “Over the past several years, we have made measurable progress and gained a deeper understanding of factors that enable us to deliver value from circular and low carbon solutions, including the pace of policy adoption and implementation, market demand and technology readiness. At the same time, maintaining capital discipline is essential in the current economic environment,” said Peter Vanacker, chief executive officer of LYB. “We will continue to create value for our stakeholders through being a leader in sustainability in the chemical industry and executing our strategy. These updates to our goals ensure we remain focused on advancing sustainability as a key value driver of our business at a pace aligned with market conditions and the regulatory environment.” To date, the company has achieved significant milestones, including advancing construction of the MoReTec -1 plant, the company’s first commercial-scale catalytic chemical recycling plant using its proprietary MoReTec technology in Wesseling, Germany, targeting future profitable growth in circular and low-carbon solutions. The company has also made progress in reducing emissions, including at the Houston Refinery site, and through value-creating energy efficiency measures at its manufacturing sites via its Value Enhancement Program, and securing sufficient projects to reach the company target of procuring a minimum of 50% of electricity from renewable sources by 2030 (based on 2020 procured levels). The updated goals will not impact supply commitments or commercial contracts. Details on LyondellBasell's refreshed sustainability approach and the enablers that impact the achievement of its sustainability goals will be shared in the company’s annual Sustainability Report in April 2026. About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. Forward-Loo

HOUSTON and LONDON, Feb. 20, 2026 (GLOBE NEWSWIRE) -- LyondellBasell (NYSE: LYB), a leader in the global chemical industry, today announced that Agustin Izquierdo, executive vice president and chief financial officer, will participate in a fireside chat at the 2026 Bank of America Global Agriculture and Materials Conference in Fort Lauderdale, Fla., on Thursday, February 26, 2026, at 9:45 a.m. EST. Webcast and Presentation Slides Access A live webcast can be accessed at the time of the event at https://investors.lyondellbasell.com/events-and-presentations/default.aspx . A replay of the event will be available at the same link within 24 hours following the webcast. About LyondellBasell We are LyondellBasell (NYSE: LYB) – a leader in the global chemical industry creating solutions for everyday sustainable living. Through advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies, we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and food safety to clean water and quality healthcare. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn. Nick Facchin LyondellBasell 713-623-3643 [email protected] Source: LyondellBasell

HOUSTON and LONDON, Feb. 20, 2026 (GLOBE NEWSWIRE) - LyondellBasell (NYSE: LYB) today announced its board of directors has declared a quarterly dividend of $0.69 per share, representing a $0.68 per share reduction from the company’s fourth quarter 2025 dividend. The dividend will be paid to shareholders on March 9, 2026, with an ex-dividend and record date of March 2, 2026. “Despite one of the longest downturns in our industry, LYB was able to return approximately $2 billion to our shareholders from existing cash and operations in 2025. With markets expected to remain challenged, we have made the decision to recalibrate the dividend to better position the company to thrive once markets recover,” said LYB CEO Peter Vanacker. “In 2026, we are prioritizing safety and reliability while driving additional cost reductions and finding new opportunities to enhance profitability. We remain committed to our target of returning 70% of free cash flow to shareholders through the cycle.” ABOUT

Net income (loss): $(738) million, $563 million excluding identified items 1 Diluted earnings (loss) per share: $(2.34) per share; $1.70 per share excluding identified items EBITDA: $1.1 billion, $2.5 billion excluding identified items Generated $2.3 billion of cash from operating activities with 95% cash conversion 2 Continued to navigate the cycle amid challenging market conditions by prioritizing operational excellence and achieving record safety performance while preserving strong liquidity Cash Improvement Plan outperformed $600 million goal for 2025 by $200 million; targeting an additional $500 million for a total of $1.3 billion by year-end 2026 Divestment of four European assets on track for completion in the second quarter of 2026 HOUSTON and LONDON, Jan. 30, 2026 (GLOBE NEWSWIRE) - LyondellBasell Industries (NYSE: LYB) today announced results for the fourth quarter and full year 2025. Comparisons with the prior quarter, fourth quarter 2024 and full year 2024 are

HOUSTON and LONDON, Jan. 05, 2026 (GLOBE NEWSWIRE) - LyondellBasell (NYSE: LYB), a leader in the global chemical industry, will announce its fourth-quarter 2025 financial results before the U.S. market opens Friday, Jan. 30, followed by a webcast and teleconference to discuss the results at 11 a.m. EST. Teleconference and webcast details Friday, January 30, 2026 11 a.m. EST Hosted by David Kinney, head of investor relations Access the webcast 10 to 15 minutes prior to the start of the call at www.lyb.com/earnings . Toll-free teleconference dial-in numbers Participant/Guest toll-free: 877-407-8029 Participant/Guest toll: 201-689-8029 Participant/Guest: CallMe link Presentation slides Presentation slides will be available at the time of the teleconference and afterward at www.lyb.com/earnings . Replay information A replay of the call will be available from 1 p.m. EST Jan. 30 until March 2, 2026. The replay dial-in