In accordance with Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we annex herewith the Press Release about the collaboration of Aether Industries ....

July 31, 2026 Ref. No.: AIL/SE/24/2026-27 BSE Limited National Stock Exchange of India Phiroze Jeejeebhoy Towers, Limited Dalal Street, Fort, Exchange Plaza, Mumbai-400001, MH. Bandra Kurla Complex, Bandra (E), Mumbai-400051, MH. Scrip Code: 543534 Symbol: AETHER Dear Madam/ Sir, Subject: Press Release Intimation In accordance with Regulation 30 of the SEBI (Listing Obligation and Disclosure Requirements) Regulations, 2015, please find enclosed herewith the Press Release titled “Aether Industries and Dow Chemical International Private Limited Collaborate on Research Program to Advance Silicone Manufacturing Technology Development in India”. We request you to kindly take this information on your records. Thank you. For Aether Industries Limited Chitrarth Rajan Parghi Company Secretary & Compliance Officer Enclosed: As above Page 1 of 2 Aether Industries Limited Registered Office: Plot No. 8203, GIDC Sachin, Surat-394230, Gujarat, India. Phone: +91-261-6603000 || Email: info@aether.co.in || Web: www.aether.co.in II CIN: L24100GJ2013PLC073434 Factory: Plot No. 8203, Beside Shakti Distillery, Near Rajkamal Chokdi, Road No. 8, Sachin GIDC, Sachin, Surat-394230, Gujarat, India. Aether Industries and Dow India Collaborate on Research Program to Advance Silicone Manufacturing Technology Development in India Surat, July 31, 2026 Aether Industries Limited (NSE: AETHER, BSE: 543534), one of India’s leading specialty chemical manufacturers and provider of contract research and manufacturing services (CRAMS), and Dow Chemical International Pvt. Ltd. (Dow India) today announced the launch of a collaborative research program to develop new manufacturing technologies for silicones. Silicones are a strategically important class of high-performance materials with applications across construction, mobility and transportation, electronics, healthcare, and personal care. This program will facilitate in creating a substantial opportunity for indigenous technology development and manufacturing. The program will be jointly executed by the two companies, with all research and pilot-scale development being carried out at Aether’s R&D and pilot facilities in Surat, Gujarat. This collaboration represents one of India’s dedicated collaborative research programs focused on developing new manufacturing technologies for silicones, marking an important milestone in advancing domestic innovation. The agreement also establishes a framework for a long-term strategic partnership, including the potential commercialization and industrial-scale manufacture of technologies developed through the program. Commenting on the collaboration, Dr. Aman Desai, Co-Founder and Director, Research and Operations, Aether Industries, said: “We are delighted that Dow has chosen Aether as its exclusive research partner for this pioneering program. The collaboration brings together Aether’s core chemistry and technology competencies with Dow, one of the global leaders in silicone applications. We are confident this partnership will deliver innovative manufacturing technologies while creating a long-term platform to address India’s rapidly expanding silicone materials market.” “This collaboration strengthens Dow’s ability to bring materials science innovation closer to high-growth markets and evolving customer needs,” said Brendy Lange, President of Dow Performance Materials & Coatings. “By combining capabilities, we see an opportunity to accelerate innovation and create differentiated silicone solutions for customers in India and beyond.” “Innovation is most valuable when it advances future ready growth.” said Dr. Mukund Parthasarathy, Business Vice President of R&D, Dow Performance Materials & Coatings. “Through this collaborative approach, we can move faster from science to scalable technologies, helping address market demand while unlocking future business opportunities in silicones.” ”India’s growing demand for advanced materials presents a strong opportunity to develop differentiated technologies closer to the market,” said Siddhartha Ghosal, Country President of Dow India. “This program brings together strengths to create value for customers, support local innovation, and enable broader access to high-performance silicone solutions across industries.” Page 2 of 2 Aether Industries Limited Registered Office: Plot No. 8203, GIDC Sachin, Surat-394230, Gujarat, India. Phone: +91-261-6603000 || Email: info@aether.co.in || Web: www.aether.co.in II CIN: L24100GJ2013PLC073434 Factory: Plot No. 8203, Beside Shakti Distillery, Near Rajkamal Chokdi, Road No. 8, Sachin GIDC, Sachin, Surat-394230, Gujarat, India.