Enclosed are the details.

30th July, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, Plot no. C/1, Dalal Street, G Block, Bandra-Kurla Complex Fort, 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 Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (the "LODR Regulations"), this is to inform you that, the Board of Directors of Clean-Fino Chem Limited (the "Subsidiary"), a wholly owned subsidiary of Clean Science and Technology Limited, at its meeting held today, i.e., July 30, 2026, has considered and approved the proposal for the incorporation of its wholly owned subsidiary in the Netherlands. Upon incorporation, the proposed entity in the Netherlands will be a wholly owned subsidiary of Clean-Fino Chem Limited and a step-down subsidiary of Clean Science and Technology Limited. The details required under Regulation 30 read with Schedule III of the LODR Regulations are enclosed as Annexure A below. The intimation is also being uploaded on the website of the Company at www.cleanscience.co.in 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 entity, date & Name of the proposed Company: country of Incorporation, etc. Clean Science BV or Clean Science International BV or Clean Science and Technology BV or Such other name as may be finalised with/approved by the relevant authority(ies). Date of Incorporation: Incorporation process will now be initiated. After completion of incorporation, the Company shall inform the exchange about registered name and other details, if any, in due course of time. Country of Incorporation: Netherlands 2. Name of holding company of the The proposed entity will be incorporated as a wholly incorporated company and owned subsidiary of Clean Fino-Chem Limited, which relation with the listed entity. in turn step down subsidiary of the Clean Science and Technology Limited. 3. Industry to which the entity Speciality Chemicals being incorporated belongs. 4. Brief background about the The proposed entity will be engaged in the business entity incorporated in terms of of selling/distribution/trading/Job work of speciality products / line of business. Chemicals and related products/activities. 5. Brief details of any governmental NA or regulatory approvals required for the incorporation. 6. Nature of consideration - The entity is proposed to be incorporated with an whether cash consideration or initial capital of an amount equivalent to EUR 50,000 share swap and details of the (or INR equivalent), to be infused in one or more same tranches, in accordance with applicable local laws and requirements. 7. Cost of subscription/price at EUR 1/Share which the shares are subscribed 8. Percentage of shareholding / The proposed entity will be incorporated as a wholly control by the listed entity and / owned subsidiary of Clean Fino-Chem Limited, which or number of shares allotted in turn step down subsidiary of the Clean Science and Technology Limited.