General Updates

24th June, 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: Intimation under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, investment in wholly owned subsidiary. Dear Sir/Madam Further to our letter dated 14th March, 2022, 20th October, 2022, 3rd February, 2024, 30th January, 2025 and 14th May, 2026, we wish to inform that, Clean Science and Technology Limited ("the Company") has subscribed to the additional 8,36,121 Equity Shares of Rs.10/- (Rupees Ten each) at a premium of Rs. 588/- (Rupees Five Hundred and Eighty-Eight Only) in lieu of subscription money of Rs. 50,00,00,358/- (Rupees Fifty Crores Three Hundred and Fifty-Eight Only) by way of subscription to the Rights Issue of Clean Fino-Chem Limited, a wholly owned subsidiary of the Company. The said equity shares shall rank pari passu with the existing equity shares. The details required under Regulation 30 of SEBI Listing Regulations, 2015 read with SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated 30th January, 2026 is enclosed as Annexure A. Date and Time of occurrence of the event: 24th June, 2026 at 02:45 PM (IST). You are requested to take above information on record. Thanking You. For Clean Science and Technology Limited Ruchita Vij Company Secretary & Compliance Officer Annexure A Sr. Particulars Details 1 Name of the target entity, details in brief Clean Fino-Chem Limited, (“CFCL”) a Wholly such as size, turnover, etc. Owned Subsidiary of Clean Science and Technology Limited (“CSTL”) was incorporated on 22nd March 2022. CSTL subscribed to the additional 8,36,121 (Eight Lakhs Thirty-Six Thousand One Hundred and Twenty-One) Equity shares of face value of Rs. 10/- (Rupees Ten Only) each at a premium of Rs. 588/- (Rupees Five Hundred and Eighty-Eight Only) for cash, aggregating to Rs. 50,00,00,358/- (Rupees Fifty Crores Three Hundred and Fifty-Eight Only). 2 Whether the acquisition would fall within Yes, CFCL is a related party of CSTL. related party transaction(s) and whether the promoter/ promoter group/ group Save and except what is mentioned above, companies have any interest in the entity the Promoters/promoter group/group being acquired? If yes, nature of interest companies are not interested in the and details thereof and whether the same is transaction. done at “arm’s length” The said transaction is at arm’s length. 3 Industry to which the entity being acquired Speciality Chemicals. belongs. 4 Objects and impact of acquisition (including The additional capital will be primarily used but not limited to, disclosure of reasons for for funding its projects. acquisition of target entity, if its business is outside the main line of business of the listed entity). 5 Brief details of any governmental or Not Applicable regulatory approvals required for the acquisition. 6 Indicative time period for completion of the Not Applicable acquisition. 7 Consideration - whether cash consideration 100% subscription to the equity share or share swap or any other form and details capital in cash. of the same. Sr. Particulars Details 8 Cost of acquisition and/or the price at which Equity shares of face value of Rs. 10/- the shares are acquired. (Rupees Ten Only) each at a premium of Rs. 588/- (Rupees Five Hundred Eighty-Eight Only) per share. 9 Percentage of shareholding/control 100% acquired and/ or number of shares acquired. 10 Brief background about the entity acquired CFCL was incorporated on 22nd March 2022 in terms of products/line of business as a Wholly Owned Subsidiary of CSTL in acquired, date of incorporation, history of India to manufacture and sale speciality last 3 years turnover, country in which the chemicals. acquired entity has presence and any other significant information (in brief). Turnover for the last 3 financial years- 31st March, 2026 – Rs. 166 Crore 31st March, 2025 – Rs. 46.77 Crore 31st March, 2024 - Rs. 1.92 Crore For Clean Science and Technology Limited Ruchita Vij Company Secretary & Compliance Officer