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// // ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab today announced the close of its acquisition of CoolIT Systems, a leader in direct liquid cooling for high‑density data centers. The transaction closed earlier than expected, and Ecolab welcomes the world-class CoolIT team to the company. Ecolab acquired CoolIT for approximately $4.75 billion. CoolIT’s year‑to‑date sales have grown more than 100%, driven by accelerating demand for liquid cooling in AI data centers. With CoolIT, Ecolab extends its established global leadership in water technologies, research and service to the fastest-growing market in the world: AI infrastructure and computing. At the heart of AI is water. We need water to produce chips, power chips, and cool chips. Ecolab is now uniquely positioned to offer end-to-end solutions across the full AI value chain, from ultra-pure water to produce the most advanced chips, to high-performing water systems for optimized power generation, to direct liquid cooling for the most powerful AI data centers. This enables Ecolab to help customers scale AI faster with global solutions that protect people, natural resources, and communities. At Supercomputing in November 2026 in Chicago, Ecolab plans to introduce a breakthrough innovation: a new end-to-end 3D TRASAR™ cooling platform combining CoolIT technologies, including cooling distribution units and high-performing cold plates, with integrated 3D TRASAR™ digital optimization and advanced cooling fluids. Supported by global expertise, it will optimize water, power, and compute performance at scale. This will provide operators with real‑time visibility into system performance to help reduce cooling power demand and increase power efficiency, while leveraging closed-loop solutions to move data centers toward a near-zero water footprint. This technology is applicable for AI architectures like NVIDIA Vera Rubin, Grace Blackwell, and more to help enhance uptime while accelerating the shift to an AI infrastructure with less impact on the environment and natural resources. “NVIDIA has collaborated with Ecolab and CoolIT across a broad range of liquid‑cooling initiatives, including coolant qualification, coolant health monitoring, cooling infrastructure development, and next‑generation AI factory technologies,” said Ali Heydari, technical director and distinguished engineer at NVIDIA, and Saket Karajgikar, senior engineering manager and ASME fellow at NVIDIA. “Through collaborations spanning NVIDIA engineering labs, research programs, and large‑scale AI infrastructure deployments, Ecolab and CoolIT have consistently demonstrated strong technical expertise, innovation, and responsiveness.” Ecolab and CoolIT will continue to work with leading hyperscale customers and bring together stakeholders across the power and water ecosystem to support the design of next-generation AI data centers that accelerate AI deployment while maximizing performance and minimizing impact. Ecolab’s Global High-Tech business, which generated approximately $150 million in annual sales in 2021, is now approaching $1.5 billion in 2026 annualized sales following the additions of Ovivo and CoolIT. Ecolab is targeting its Global High-Tech business to be $4 billion in annual sales by 2030, with operating income margins of 25%. The business is now Ecolab’s largest growth engine, and as it grows by more than 25% annually, it is expected to contribute more than 2 percentage points to annual sales growth with expanding margins. “With Ecolab’s breakthrough solutions across fabs, power and data centers, AI can now scale more rapidly while respecting communities, the environment and natura

// // ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab will host a live webcast to discuss its second quarter 2026 results. A news release containing second quarter results is expected to be issued before market open on July 28, 2026. Details for the public webcast are as follows: TIME: 1:00 p.m. Eastern Time DATE: Tuesday, July 28, 2026 DURATION: One hour LOCATION: www.ecolab.com/investor ARCHIVE: A replay of the webcast and supplemental data will be available on Ecolab’s website. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data-driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countr

// // ST. PAUL, Minn.--(BUSINESS WIRE)-- Scott Kirkland, CFO, will address financial analysts at the William Blair Annual Growth Stock Conference on Tuesday June 2, 2026. Ecolab will offer a webcast of Mr. Kirkland’s presentation. Details for the webcast are as follows: TIME: 10:00am CT DATE: June 2, 2026 DURATION: Approximately 30 minutes LOCATION: www.ecolab.com/investor ARCHIVE: A replay of the webcast will be available through September 2, 2026. To access the webcast, visit the Events & Presentations section of Ecolab’s Investor website at www.ecolab.com/investor and click on the webcast details. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countries and 40 industries. The company helps protect

// // 2025 Growth & Impact Report shows how Ecolab is built for growth in the AI era ST. PAUL, Minn.--(BUSINESS WIRE)-- The world is entering a period of historic growth, complexity and opportunity. As artificial intelligence reshapes industries and demand for energy, food and water accelerates, how companies grow next will matter as much as how fast they grow. In a rapidly changing world, Ecolab remains constant. Today, the company released its 2025 Growth & Impact Report highlighting how Ecolab continues to deliver strong business performance while deepening its impact on customers and communities in the areas that matter most. Technologies like AI promise extraordinary progress, but they cannot scale without mastering water. “Water is the foundation of life and business. We cannot create more water, but we can reimagine how we use it,” said Christophe Beck, Chairman, President and CEO, Ecolab. “Companies that act decisively, apply proven solutions and work in partnership will lead the next era of growth.” In 2025, Ecolab partnered with customers across more than 40 industries and 170 countries to deliver performance and growth while protecting vital resources around the world. Together, Ecolab helped customers: Conserve the annual drinking water needs of more than 849 million people , equivalent to 245 billion gallons of water Safeguard 7.7 million people from pollution-induced illnesses by avoiding 4.7 million metric tons of greenhouse gas emissions Protect 1.7 billion people from foodborne illnesses and infections Realize $12.9 billion in cumulative value i using Ecolab solutions and services That performance translated into real-world results, reinforcing how performance and impact fuel each other. While Ecolab’s greatest impact is delivered through its customers, the company applies the same discipline across its operations and communities: High-performing teams: Delivered record sales, earnings per share, operating income margin and cash flows, fueled by a culture of safety, inclusion and performance. World-class operations: Reduced Scope 1 and 2 emissions by 44% from a 2018 base year, powered 92% of operations with renewable electricity and improved water use efficiency by 36%. Global water leadership: Advanced basin-level action as a co-founder of the United Nations Water Resilience Coalition, expanded Alliance for Water Stewardship certification to 16 Ecolab facilities and partnered with Water.org to expand global access to safe water and sanitation. Breakthrough digital innovation: Accelerated water, digital and AI solutions, including the Water Use Efficiency Index with CDP and Ecolab ® Water Navigator IQ™ . Positive community impact: Invested $24.2 million globally through the Ecolab Foundation to strengthen communities where Ecolab operates. Ecolab is built for this moment. By delivering strong performance while addressing the world’s most pressing resource challenges, the company is helping lead the next era of growth the right way. Explore Ecolab’s

// // ST. PAUL, Minn.--(BUSINESS WIRE)-- The board of directors of Ecolab Inc. today declared a regular quarterly cash dividend of $0.73 per common share, to be paid July 15, 2026, to shareholders of record at the close of business on June 16, 2026. Ecolab has paid cash dividends on its common stock for 89 consecutive years. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countries and 40 industries. The company helps protect one-third of the world’s food production and a quarter of the power generated while delivering innovative solutions across food, hospitality, healthcare, data centers, microelectronics and life sciences. As the world’s water company, Ecolab plays an important role in AI growth by supporting the full water needs of advanced computing—from ultra pure water for chip manufacturing, to water solutions that support the power behind AI, to direct liquid cooling systems for high density computing that improves performance while reducing environmental impact through circular water use. In life sciences, Ecolab delivers end to end solutions that support the development and manufacturing of life-saving drugs, helping customers operate safely and consistently at scale while improving performance and reducing environmental impact. Through its comprehensive approach, Ecolab protects what’s vital, with a goal by 2030 to help protect 2 billion people from infections and conserve enough drinking water for 1 billion people, while continuing to enhance business performance. Ecolab. Protecting What’s Vital. www.ecolab.com (ECL-D) Investor Contacts: Andrew C. Hedberg 651.250.2185 Andrew Pearson 651.250.3654 Source: Ecolab Inc.

// // ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab will host a live webcast of its annual meeting of stockholders. As indicated in our proxy statement, the 2026 Annual Meeting of Stockholders will be a virtual-only meeting. Details for the public webcast are as follows: TIME: 9:30 a.m. Central Time DATE: Thursday, May 7, 2026 DURATION: Approximately 30 minutes LOCATION: www.virtualshareholdermeeting.com/ECL2026 ARCHIVE: <td cl

// // ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab Inc. (NYSE: ECL): FIRST QUARTER HIGHLIGHTS Ecolab delivered another quarter of double-digit EPS growth, driven by continued strong value pricing, accelerated volume growth and solid operating income margin expansion. Reported sales $4.1 billion, +10%. Organic sales accelerated to +4%, led by accelerated growth in Life Sciences, Global High-Tech, Institutional and Specialty. Pest Elimination and Food & Beverage continued to deliver strong growth. Reported operating income margin 15.3%. Adjusted operating income margin increased 70 bps to 16.7%. Reported diluted EPS $1.52, +8%. Adjusted diluted EPS $1.70, +13%. MAINTAINS 2026 OUTLOOK 2026: Continue to expect adjusted diluted EPS in the $8.43 to $8.63 range, +12% to 15%, excluding the impact of the pending CoolIT Systems acquisition. Ecolab expects to quickly offset rising commodity costs through accelerating pricing, record new business wins and improved productivity. 2Q 2026: Expect adjusted diluted EPS in the $2.02 to $2.12 range, +7% to 12%. This range reflects a short transition period as benefits from the energy surcharge progressively build to offset higher commodity costs. First Quarter Ended March 31

// // Ecolab’s AI-enabled insights and advanced technologies deliver performance and positive impact at scale ST. PAUL, Minn.--(BUSINESS WIRE)-- As artificial intelligence defines a new era of growth, businesses are navigating a fast-changing world, and demand for our most critical resource, water, is rapidly rising. Reliable water access underpins roughly 60% of global GDP , even as the world faces a projected 56% freshwater shortfall by 2030 . Access to water is increasingly critical for business growth and top-tier performance. With more than a century of expertise, Ecolab, a global leader in water, hygiene and infection prevention, delivers an expansive portfolio of cutting-edge water solutions that help customers unlock peak performance across more than 40 industries and 170 countries. This Earth Day, Ecolab announced Ecolab ® Water Navigator IQ™ , a new AI-enabled platform that gives companies an enterprise-wide view of water performance and turns data into action. Built for the growing need for water intelligence, Water Navigator IQ brings together site-level insights and predictive analytics in one powerful platform. It enables leaders to understand water use, benchmark performance, improve efficiency and align decisions with business outcomes. By identifying potential constraints earlier, prioritizing action across sites and connecting local decisions to a coordinated global strategy, the platform helps organizations scale at the speed of AI. “The need for high-quality water is growing extremely fast as AI expands, with water required at every stage of the process, from mining critical minerals and manufacturing chips to powering, cooling and maintaining data centers,” said Christophe Beck, Chairman and CEO, Ecolab. “In a world reshaped by AI, performance is everything. But high performance cannot be realized without water. Ecolab’s transformative technologies and insights help our customers use water more efficiently to optimize operations and fuel growth.” By integrating monitoring, insights and global expertise, Ecolab’s scalable solutions enable businesses to do more with less in an increasingly water-constrained world. “Los Angeles, Mexico City, Seville and Beijing couldn’t be more different, but they share the same reality: water is no longer a given,” said Emilio Tenuta, Senior Vice President and Chief Sustainability Officer, Ecolab. “In water-stressed regions, highly water-dependent operations like data centers or brewing manufacturers can see up to 99% of production and revenue at risk during a disruption. The difference is predictability. With early, predictive insights and tools like Ecolab Water Navigator IQ, companies can anticipate constraints, make smarter de

// // Acquisition accelerates Ecolab’s sales growth by significantly expanding its Global High-Tech growth engine, creating an end-to-end fluid management and cooling platform for AI data centers ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab announced today that it has entered into a definitive agreement to acquire CoolIT Systems, a high-growth, high-margin leader in liquid cooling technology for next-gen AI data centers. CoolIT is expected to generate approximately $550 million in sales over the next 12 months. With CoolIT’s rapid sales growth, the acquisition is expected to significantly strengthen the company’s Global High-Tech growth engine and accelerate Global Water’s organic sales growth rate by 2% and Ecolab’s total organic sales growth rate by 1%. The acquisition, from funds managed by KKR, positions Ecolab as a comprehensive cooling solutions provider by advancing its capabilities across the rapidly growing data center market. CoolIT is a pure-play data center liquid cooling company with end-to-end capabilities that designs and manufactures high-performance liquid cooling systems, including coolant distribution units (CDUs), cold plates and direct-to-chip cooling technologies. With more than 25 years of experience, their technology helps the world’s largest hyperscale and colocation operators run more efficiently and reliably. As data centers shift from air cooling to liquid cooling to support rising compute demands, CoolIT’s mission-critical technologies provide the performance needed for advanced AI workloads. By combining CoolIT’s anchor thermal engineering technologies and design excellence with Ecolab’s expertise in water, chemistry, fluid management, digital monitoring and global service, Ecolab is bolstering its Cooling-as-a-Service offering. This integrated solution helps AI data centers improve performance, reduce downtime and lower water use across their operations. Under the terms of the agreement, Ecolab will pay approximately $4.75 billion in cash at the closing of the transaction, subject to customary adjustments. This represents 29x and 24x estimated next 12-month and 2027 adjusted EBITDA for CoolIT. “AI is transforming the demands on data centers, and liquid cooling is one of the critical technologies that makes advanced computing possible,” said Christophe Beck, Ecolab chairman and chief executive officer. “By bringing together CoolIT’s engineered cooling technologies with Ecolab’s expertise in water, chemistry and digital service, we can provide our customers a complete cooling solution that improves performance and reliability while reducing water and energy use. This acquisition expands our role in serving the AI ecosystem—semiconductor fabs that manufacture chips, power plants that fuel the chips, and data centers that utilize the chips—and positions Ecolab as the partner that the world’s largest technology companies rely on to grow responsibly and sustainably.” Strategic Highlights CoolIT is a high-growth, high-margin global leader in advanced liquid cooling technologies with 100% focus on the data center market. The acquisition enables Ecolab to rapidly accelerate its recurring, high-margin data center cooling business, by adding mission-critical anchor technologies including CDUs, cold plates, liquid loops and rack manifolds, with substantial cross-selling opportunities. CoolIT will double Ecolab’s Global High-Tech market opportunity from $5 billion to $10 billion, with this market growing strong double-digits annually. The combination complements Ecolab’s existing reach across more

// // Ecolab is just one of six organizations recognized each year since the award’s inception ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab Inc., a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life, today announced it has been named one of the 2026 World’s Most Ethical Companies ® by Ethisphere, a global leader in defining and advancing the standards of ethical business practices. This marks Ecolab’s 20th consecutive year receiving the recognition—an achievement only a small number of companies worldwide can claim. “At Ecolab, strong performance starts and ends with doing what’s right,” said Christophe Beck, Chairman and CEO, Ecolab. “For 20 years, this recognition has reflected how our teams lead with integrity, earn trust and deliver results as promised for customers and communities around the world. Winning the right way isn’t just who we are. It's how we perform.” The World’s Most Ethical Companies assessment is grounded in Ethisphere’s proprietary Ethics Quotient ® , which evaluates companies across more than 240 proof points that support robust ethics and compliance programs, including governance, culture, environmental and social impact, and risk management practices. The process also includes extensive qualitative analysis by a panel of experts to identify organizations that demonstrate best‑in‑class ethics and compliance practices. Ecolab’s two‑decade inclusion on the list reflects the company’s long‑standing commitment to delivering its promise with integrity and fostering a culture where associates are encouraged to speak up, act responsibly and look out for one another. Guided by its Code of Conduct and supported by clear ethics resources, Ecolab emphasizes shared ownership of ethics, inclusion and safety across its more than 48,000 associates worldwide, foundational to the company’s track record of high performance and impact. Ecolab’s ethical leadership is reinforced by a long track record of consistent performance and purpose‑led action. The company has been named one of Fortune’s World’s Most Admired Companies , reflecting strength across key reputation drivers including innovation, social responsibility and quality of management. Ecolab also recently earned a double ‘A’ rating from CDP for leadership in water and climate performance, placing the company among the top‑performing organizations globally for transparency and environmental impact. For the full list of companies on Ethisphere’s World’s Most Ethical Companies List, visit: <a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fworldsmostethical

// // ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab will host a live webcast to discuss its first quarter 2026 results. A news release containing first quarter results is expected to be issued before market open on April 28, 2026. Details for the public webcast are as follows: TIME: 1:00 p.m. Eastern Time DATE: Tuesday, April 28, 2026 DURATION: One hour LOCATION: www.ecolab.com/investor ARCHIVE: A replay of the webcast and supplemental data will be available on Ecolab’s website. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data driven insights, AI technology and world class service. This unique combination enables Ecolab to partner with customers to define what best in class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab has $16 billion in annual sales, 48,000 associates and customers in more than 170 countries and 40 industries. The company helps protect one third of the world’s food production and a quarter of the power generated while delivering innovative solutions across food, healthcare, data centers, microelectronics, life sciences and hospitality. Ecolab’s comprehensive approach protects what’s vital, aiming by 2030 to help protect 2 billion people from infections and enough drinking water for 1 billion people while enhancing business performance. <a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=http%3A%2F%2Fwww.ecolab.com&esheet=54452621&newsitemid=20260317584851&lan=en-US&anchor=www.ecolab.com&index=2&md5=b08a4368ff77d07710ec5ba9f73fc8b9" rel="nofollow"