Enclosed are the details for the allotment of 1601 equity shares under ESOP on 31st August, 2026.

31st August, 2026 BSE Limited National Stock Exchange of India Limited Phiroze JeeJeebhoy Towers, Exchange Plaza, Plot no. C/1, Dalal Street, Fort, G Block, Bandra-Kurla Complex Mumbai – 400 001 Bandra (E), Mumbai - 400 051 Scrip Code: 543318 Trading Symbol: CLEAN Subject: Allotment of Equity Shares under CSTL ESOS 2021 of the Company. Dear Sir / Madam Pursuant to the Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we wish to inform you that, the Nomination and Remuneration Committee of the Company by way of circular resolution on 31st August, 2026 has approved allotment of 1,601 Equity Shares of face value of Re. 1/- each to the eligible employees under Clean Science and Technology Limited Employee Stock Option Scheme 2021 (“CSTL ESOS 2021”). Consequent to this allotment, the paid-up share capital of the Company stands increased from Rs. 10,62,82,520 (consisting of 10,62,82,520 Equity Shares of Re. 1/- each) to Rs. 10,62,84,121 (consisting of 10,62,84,121 Equity Shares of Re. 1/- each). Please find below the statement pursuant to Regulation 10(c) of the SEBI (Share Based Employee Benefits and Sweat Equity) Regulations, 2021: 1. Company name and address of Registered Clean Science and Technology Limited, Office Regd. Off: - Office No. 603 & 604, 6th Floor, Tower No. 15, Cybercity, Magarpatta City, Hadapsar, Pune, Maharashtra, 411013. 2. Name of the Stock Exchange on which the 1. BSE Limited (BSE) company’s shares are listed 2. National Stock Exchange of India Limited (NSE) 3. Filing date of the statement referred in Filing Date: 7th April, 2022 and Regulation 10(b) of the Securities and 5th September 2023. Exchange Board of India (Share Based The Company has received ‘In Principle’ Employee Benefits and Sweat Equity) approval for 1,00,000 equity shares on Regulations, 2021 with recognised Stock 9th June, 2022 and for 2,50,000 equity shares Exchange on 25th September, 2023 from BSE under CSTL ESOS 2021. Filing Date: 7th April, 2022 and 5th September, 2023. The Company has received ‘In Principle’ approval for 1,00,000 equity shares on 16th June, 2022 and for 2,50,000 equity shares on 25th September, 2023 from NSE under CSTL ESOS 2021. 4. Filing Number, if any Reference number of In-Principal approval BSE: DCS/IPO/TL/ESOP-IP/2361/2022-23 (9th June, 2022) and DCS/IPO/SC/ESOP-IP/2922/2023-24 (25th September, 2023) NSE: NSE/LIST/30690 (16th June, 2022) and NSE/LIST/37331 (25th September, 2023) 5. Title of the Scheme pursuant to which Clean Science and Technology Limited shares are issued, if any Employee Stock Option Scheme 2021 6. Kind of security to be listed Equity Shares 7. Par value of the shares Re. 1/- each 8. Date of issue of shares 31st August, 2026 9. Number of shares issued 1,601 10. Share Certificate No., if applicable N.A. 11. Distinctive number of the share, if applicable 10,62,82,521 to 10,62,84,121 12. ISIN Number of the shares if issued in Demat INE227W01023 13. Exercise price per share Rs. 500/- 14. Premium per share Rs. 499/- 15. Total Issued shares after this issue 10,62,84,121 16. Total Issued share capital after this issue Rs. 10,62,84,121 17. Details of any lock-in on the shares N.A. 18. Date of expiry of lock-in N.A. 19. Whether shares identical in all respects to All equity shares of the Company allotted existing shares if not, when will they become consequent to exercise of options shall rank identical pari passu with the existing shares of the Company. 20. Details of listing fees, if payable N.A. Request you to take the same on record. Thanking You. Yours faithfully, For Clean Science and Technology Limited Ruchita Vij Company Secretary & Compliance Officer