Neogen^® Corporation (NASDAQ:NEOG), an innovative leader in food safety solutions, today announced that its Molecular Detection Assay - Listeria Right Now™ rapid environmental monitoring test has received AOAC^® Performance Tested Methods℠ (PTM) certification (No. 042604), validating the test's performance for the enrichment-free detection of viable and non-viable Listeria species on stainless steel surfaces. The technology allows technicians to perform the assay without first enriching the sample by growing the bacteria in culture media. Combined with the ease-of-use and speed advantages associated with Neogen's Molecular Detection System ™, this makes Neogen's test one of the fastest molecular tests available for Listeria species testing.

The AOAC PTM program is an internationally recognized third-party validation that confirms a method performs as claimed and meets rigorous performance standards. Certification of Listeria Right Now demonstrates Neogen's commitment to delivering scientifically validated, regulator-recognized solutions that support food safety programs worldwide.

Listeria Right Now is designed to deliver clear, actionable results from samples, without an enrichment step, in about two hours. This allows food manufacturers to quickly identify potential contamination risks and strengthen environmental monitoring workflows. The test integrates seamlessly into existing food safety programs and supports proactive decision-making across a wide range of food production environments.

"Rapid and reliable detection of Listeria is critical for effective environmental monitoring programs," said Dr. Jeremy Yarwood, Chief Scientific Officer at Neogen. "AOAC PTM certification of Listeria Right Now provides customers with added confidence that the test delivers dependable performance when and where it matters most, helping them take timely action to protect their facilities, brands, and reputation."

Neogen offers one of the industry's most comprehensive portfolios of environmental monitoring and pathogen detection solutions, backed by global validation, regulatory acceptance, and decades of scientific expertise. The addition of AOAC PTM certification for Listeria Right Now further strengthens Neogen's position as a trusted partner to food producers around the world. To learn more about the Neogen^® Molecular Detection Assay - Listeria Right Now™ visit info.neogen.com/listeriarightnow.

About Neogen

Neogen Corporation is committed to fueling a brighter future for global food security through the advancement of human and animal well-being. Harnessing the power of science and technology, Neogen has developed comprehensive solutions spanning the Food Safety, Livestock, and Pet Health & Wellness markets. A world leader in these fields, Neogen has a presence in over 140 countries with a dedicated network of scientists and technical experts focused on delivering optimized products and technology for its customers.

Safe Harbor Statement

This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, including statements related to the test's ability to allow food manufacturers to quickly identify potential contamination risks and strengthen environmental monitoring workflows, the test's ability to seamlessly integrate into existing food safety programs and support proactive decision-making across a wide range of food production environments, the future positioning of Neogen's test one of the fastest molecular tests available for Listeria testing, and the addition of AOAC PTM certification for Listeria Right Now strengthening Neogen's position as a trusted partner to food producers around the world.

These "forward-looking statements" are management's present expectations of future events as of the date hereof and are subject to a number of known and unknown risks and uncertainties that could cause actual results, conditions, and events to differ materially and adversely from those anticipated.

These risks include, but are not limited to risks relating to the integration of the 3M Food Safety business, risks related to potential tax benefits realized through the 3M transaction, risks related to tariffs and other trade measures, risks related to our international operations and expansion into new geographic markets, risks related to identified material weaknesses in our internal control over financial reporting, risks related to promoting internal growth and identifying and integrating acquisitions, risks related to failure of our systems infrastructure and security breaches of our information systems, risks related to disruption in our manufacturing and service operations, risks related to disruption of third-party package delivery services or pricing increases, risks related to dependence on key suppliers, risks related to the use of distributors for product sales, risks related to the development of new products and technologies, risks related to our ability to maintain a positive reputation, risks related to customer loss, risks related to increased raw material costs, risks related to anti-bribery, trade control, trade sanctions, and anti-corruption laws, risks related to changes in domestic and foreign laws and regulations, risks related to tax audits and changes in tax laws in different jurisdictions, risks related to deterioration in profitability, cash flow, and asset impairments, risks related to competition, risks related to agricultural marketplace, risks related to our substantial indebtedness, risks related to the outcomes of litigation and other legal proceedings, risks related to our ability to obtain and protect intellectual property, risks related to patent infringement challenges, risks related to governmental regulation, risks related to our ability to attract and retain key personnel, risks related to product or service liability claims, risks related to changing political conditions, risks related to climate change, risks related to our inability to meet stakeholder expectations around environmental, social, and governance objectives, risks related to tax legislation, and other factors discussed under the heading "Risk Factors" contained in Item 1A of the company's Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission (SEC) on July 30, 2025, as well as any updates to those risk factors filed from time to time in the company's Quarterly Reports on Form 10-Q or Current Reports on Form 8-K. Neogen is not under any obligation, and it expressly disclaims any obligation, to update or alter any forward-looking statements, whether as a result of new information, future events or otherwise except as required by law.

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Media Contact:

Lauren White

lwhite@neogen.com

Neogen's Listeria Right Now™ Test Receives AOAC® Performance Tested Methods℠ Certification