Diffusion Engineers Limited — Regulatory Filings 2026

May 12, 2026

Great Place to Work. Certified

DIFFUSION Innovative superconditioning solutions

Date: May 12, 2026

To,

The Manager

Listing Department

National Stock Exchange of India Limited

Exchange Plaza, Bandra Kurla Complex

Bandra (East),

Mumbai - 400 051

NSE Symbol: DIFFNKG

To,

The Manager

Corporate Relationship Department

BSE Limited

Floor 25, Phiroze Jeejeebhoy Towers,

Dalal Street,

Mumbai - 400 001

BSE Scrip Code - 544264

Dear Sir/Madam,

Subject: Intimation about the Meeting of Board of Directors.

Ref: Regulation 29 of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015.

Pursuant to Regulation 29 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby inform you that a meeting of the Board of Directors of Diffusion Engineers Limited is scheduled to be held on Saturday, May 16, 2026, inter alia to:

i. Consider and approve the Audited Standalone & Consolidated Financial Results of the Company for the quarter and year ended on March 31, 2026;

ii. Consider and recommend the payment of final dividend, if any, for the Financial Year 2025-2026.

Further, in accordance with the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015, the trading window for dealing in securities of the Company which has been closed from Wednesday, April 01, 2026, for all the designated persons and their immediate relatives as defined in the Code, shall re-open after the expiry of 48 hours from the date of declaration of the said financial results.

You are requested to kindly take the same on your record.

Thanking You.

Yours faithfully,

For Diffusion Engineers Limited

Chanchal Rajesh Jaiswal
Digitally signed by
Chanchal Rajesh Jaiswal
Date: 23/6/20 12
14:41:56 +00'00'

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

IMS CERTIFIED COMPANY

TÜV SÜD

DIFFUSION ENGINEERS LIMITED

Regd. Office : T-5 & 6, M.I.D.C., Hingna Industrial Area, Nagpur - 440 016, Maharashtra, INDIA

[t] 091-7104-232890, 234727, 236772, CIN : L99999MH2000PLC124154

[e] info@diffusionengineers.com, [w] www.diffusionengineers.com GSTIN : 27AAACD8008L1ZK

Branches At : Ahmedabad • Chennai • Chittorgarh • Faridabad • Jamshedpur • Kolkata • Pune • Raipur • Secunderabad