Diffusion Engineers Limited — Regulatory Filings 2026

Feb 9, 2026

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Date: February 09, 2026

To, To, The Manager The Manager Listing Department Corporate Relationship Department National Stock Exchange of India Limited BSE Limited Exchange Plaza, Bandra Kurla Complex Floor 25, Phiroze Jeejeebhoy Towers, Bandra (East), Dalal Street, Mumbai - 400 051 Mumbai - 400 001 NSE Symbol: DIFFNKG BSE Scrip Code - 544264

Dear Sir/Madam,

– Subject: Audio recording of the Earning Conference Call with Investor & Analyst Q3 Results FY 2025-26

Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, the audio recording of the Investor & Analyst meet held on February 09, 2026 on the Un-Audited Financial Results of the Company for the quarter and nine months ended December 31, 2025, has been made available on the Company’s Website i.e https://www.diffusionengineers.com/investors-relation

The link for the same is mentioned below:

• https://diffusionengineers.com/wp content/uploads/2026/02/10040377.mp3.mp3

Thanking You. Yours faithfully,

For Diffusion Engineers Limited

Chanchal Digitally signed by Chanchal Rajesh Jaiswal Rajesh Jaiswal Date: 2026.02.09 19:16:29 +05'30'

Chanchal Jaiswal Company Secretary and Compliance Officer ICSI Membership no. A67136

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