Lupin Launches Raltegravir Tablets, USP, 600 mg in the United States.

November 03, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, P. J. Towers, Dalal Street, Bandra Kurla Complex, Mumbai Samachar Marg, Bandra (East), Mumbai - 400 001 Mumbai - 400 051 Symbol: LUPIN Scrip Code: Equity - 500257 Subject: Disclosure pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sir/Madam, We are pleased to enclose a Press Release titled “Lupin Launches Raltegravir Tablets, USP, 600 mg in the United States”. The same is for your information and dissemination. Thanking you, For LUPIN LIMITED AMIT KUMAR GUPTA COMPANY SECRETARY & COMPLIANCE OFFICER (ACS -15754) Encl.: a/a. LUPIN LIMITED Registered Office: 3rd Floor, Kalpataru Inspire, Off W. E. Highway, Santacruz (East), Mumbai - 400 055 India. Tel: (91-22) 6640 2323. Corporate Identity Number: L24100MH1983PLC029442 info@lupin.com | www.lupin.com Press Release BSE: 500257 NSE: LUPIN REUTERS: LUPIN.BO BLOOMBERG: LPCIN Lupin Launches Raltegravir Tablets, USP, 600 mg in the United States As the First-To-File, Lupin is Eligible for 180-Day Generic Exclusivity Mumbai, India, Naples, Fla, November 3, 2026: Global pharma major Lupin Limited (Lupin) today announced the launch of Raltegravir Tablets USP, 600 mg in the United States following the approval from the U.S. FDA for its Abbreviated New Drug Application. Raltegravir Tablets, 600 mg are bioequivalent to the reference listed drug (RLD) Isentress® HD Tablets, 600 mg of Merck Sharp & Dohme, LLC. and indicated in combination with other antiretroviral agents for the treatment of Human Immunodeficiency Virus (HIV-1) infection in adult patients and in pediatric patients weighing at least 40 kg. Lupin is the exclusive first-to-file for this product and is eligible for 180-day generic drug exclusivity. Raltegravir Tablets USP, 600 mg (RLD Isentress® HD) had an estimated annual sale of USD 26 million in the U.S. (IQVIA MAT September 2026). About Lupin Lupin Limited is a global pharmaceutical leader headquartered in Mumbai, India, with a strong presence across India, the U.S., Other Developed Markets, and Emerging Markets, with products distributed in over 100 markets. Lupin has a diversified portfolio spanning generics, complex generics, specialty medicines, and biosimilars, and continues to strengthen its market position through a differentiated portfolio. The company maintains strong leadership in the U.S. and India across core therapeutic areas, including cardiovascular, respiratory, diabetes, gastrointestinal, and women’s health. 15 state-of-the-art manufacturing facilities support sustainable operations, with 6 research centers and a dedicated workforce of over 26,000 professionals. Lupin continues to expand the healthcare ecosystem through diagnostics, digital health, patient-support programs, and disease management initiatives. Sustainability continues to be a core pillar of the company’s business strategy. To know more, visit www.lupin.com or follow us on LinkedIn https://www.linkedin.com/company/lupin For further information or queries, please contact Rajalakshmi Azariah Vice President & Global Head – Corporate Communications, Lupin rajalakshmiazariah@lupin.com Elise Titan Director – U.S. Communications, Lupin elisetitan@lupin.com *Safe Harbor Statement Isentress® and Isentress® HD are registered trademarks of Merck Sharp & Dohme LLC. 1 | P age