General Updates

26.06.2026 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: Report under Regulation 10(7) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 Ref.: Inter-se Transfer of equity shares of Clean Science and Technology Limited (“the Target Company) among Promoter and promoter group of the Company under Regulation 10(1)(a) (ii) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011. Dear Sir/Madam We hereby submit the report, along with the supporting documents, as received by the Company from the below-mentioned Acquirers, in compliance with Regulation 10(7) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011. The submission pertains to the acquisition of equity shares of the Company by way of gift through an off-market inter-se transfer among members of the Promoter and Promoter Group, without any consideration. Name of the Name of the No. of shares Percentage of Transferor/Donor Transferee/Donee transferred by way Holding of proposed (Belongs to Promoter (Belongs to Promoter of gift share (%) g roup) group) (Acquirers) Ashok Ramnarayan Boob ARB Business Trust 33,00,000 3.11 Asha Ashok Boob AAB Business Trust 1,01,00,000 9.50 Nilima Krishnakumar Asha Ashok Boob 8,38,000 0.79 Boob Alaknanda Business 58,00,000 5.46 Trust Total 2,00,38,000 18.86 You are requested to kindly take the above information in your records. Thanking You For Clean Science and Technology Limited Ruchita Vij Company Secretary and Compliance Officer Membership No. FCS 9210 Encl: As above. Compliance - Clean Science From: Ashok Boob <ashokboobfamily@gmail.com> Sent: 25 June 2026 18:33 To: cfddcr@sebi.gov.in; kiran@sebi.gov.in; srishtijc@sebi.gov.in Cc: Compliance - Clean Science; Ruchita - Clean Science Subject: Disclosures under Regulation 10(7) of SEBI (SAST) Regulations, 2011 – ARB Business Trust Attachments: ARB Business Trust_Disclosure under 10(7) SAST.pdf Dear Sir/Madam, Reference: Target Company: Clean Science and Technology Limited, ISIN: INE227W01023, NSE SCRIP SYMBOL: CLEAN, BSE SCRIP CODE: 543318. We, ARB Business Trust, Acquirer and member of the Promoter group of the Company With reference to the captioned subject and further to our intimations dated 1st June 2026 and 11th June 2026 filed under Regulations 10(5) and 10(6), respectively, of the Securities and Exchange Board of India (“SEBI”) (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 (“SEBI SAST Regulations”), please find enclosed the disclosure under Regulation 10(7) of the SEBI SAST Regulations, attached herewith for your records. Disclosure under Regulation 10(7) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, the same has been submitted on 23/06/2026 with SEBI Intermediary Portal (SI Portal) at https://siportal.sebi.gov.in vide Application No. 702 Kindly take the same on your record. Regards, For ARB Business Trust Asha Ashok Boob Trustee Compliance - Clean Science From: Ashok Boob <ashokboobfamily@gmail.com> Sent: 25 June 2026 18:33 To: corp.relations@bseindia.com Cc: Compliance - Clean Science; Ruchita - Clean Science Subject: Disclosures under Regulation 10(7) of SEBI (SAST) Regulations, 2011 – ARB Business Trust Attachments: ARB Business Trust_Disclosure under 10(7) SAST.pdf Dear Sir/Madam, Reference: Target Company: Clean Science and Technology Limited, ISIN: INE227W01023, NSE SCRIP SYMBOL: CLEAN, BSE SCRIP CODE: 543318. We, ARB Business Trust, Acquirer and member of the Promoter group of the Company With reference to the captioned subject and further to our intimations dated 1st June 2026 and 11th June 2026 filed under Regulations 10(5) and 10(6), respectively, of the Securities and Exchange Board of India (“SEBI”) (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 (“SEBI SAST Regulations”), please find enclosed the disclosure under Regulation 10(7) of the SEBI SAST Regulations, attached herewith for your records. Disclosure under Regulation 10(7) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, the same has been submitted on 23/06/2026 with SEBI Intermediary Portal (SI Portal) at https://siportal.sebi.gov.in vide Application No. 702 Kindly take the same on your record. Regards, For ARB Business Trust Asha Ashok Boob Trustee Compliance - Clean Science From: Ashok Boob <ashokboobfamily@gmail.com> Sent: 25 June 2026 18:33 To: takeover@nse.co.in Cc: Compliance - Clean Science; Ruchita - Clean Science Subject: Disclosures under Regulation 10(7) of SEBI (SAST) Regulations, 2011 – ARB Business Trust Attachments: ARB Business Trust_Disclosure under 10(7) SAST.pdf Dear Sir/Madam, Reference: Target Company: Clean Science and Technology Limited, ISIN: INE227W01023, NSE SCRIP SYMBOL: CLEAN, BSE SCRIP CODE: 543318. We, ARB Business Trust, Acquirer and member of the Promoter group of the Company With reference to the captioned subject and further to our intimations dated 1st June 2026 and 11th June 2026 filed under Regulations 10(5) and 10(6), respectively, of the Securities and Exchange Board of India (“SEBI”) (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 (“SEBI SAST Regulations”), please find enclosed the disclosure under Regulation 10(7) of the SEBI SAST Regulations, attached herewith for your records. Disclosure under Regulation 10(7) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, the same has been submitted on 23/06/2026 with SEBI Intermediary Portal (SI Portal) at https://siportal.sebi.gov.in vide Application No. 702 Kindly take the same on your record. Regards, For ARB Business Trust Asha Ashok Boob Trustee Compliance - Clean Science From: Ashok Boob <ashokboobfamily@gmail.com> Sent: 25 June 2026 18:28 To: cfddcr@sebi.gov.in; kiran@sebi.gov.in; srishtijc@sebi.gov.in Cc: Compliance - Clean Science; Ruchita - Clean Science Subject: Disclosures under Regulation 10(7) of SEBI (SAST) Regulations, 2011 – AAB Business Trust Attachments: AAB Business Trust Disclosure under 10(7) SAST.pdf Dear Sir/Madam, Reference: Target Company: Clean Science and Technology Limited, ISIN: INE227W01023, NSE SCRIP SYMBOL: CLEAN, BSE SCRIP CODE: 543318. We, AAB Business Trust, Acquirer and member of the Promoter group of the Company With reference to the captioned subject and further to our intimations dated 1st June 2026 and 11th June 2026 filed under Regulations 10(5) and 10(6), respectively, of the Securities and Exchange Board of India (“SEBI”) (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 (“SEBI SAST Regulations”), please find enclosed the disclosure under Regulation 10(7) of the SEBI SAST Regulations, attached herewith for your records. Disclosure under Regulation 10(7) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, the same has been submitted on 23/06/2026 with SEBI Intermediary Portal (SI Portal) at https://siportal.sebi.gov.in vide Application No. 701 Kindly take the same on your record. Regards, For AAB Business Trust Ashok Ramnarayan Boob Trustee Compliance - Clean Science From: Ashok Boob <ashokboobfamily@gmail.com> Sent: 25 June 2026 18:29 To: corp.relations@bseindia.com Cc: Compliance - Clean Science; Ruchita - Clean Science Subject: Disclosures under Regulation 10(7) of SEBI (SAST) Regulations, 2011 – AAB Business Trust Attachments: AAB Business Trust Disclosure under 10(7) SAST.pdf Dear Sir/Madam, Reference: Target Company: Clean Science and Technology Limited, ISIN: INE227W01023, NSE SCRIP SYMBOL: CLEAN, BSE SCRIP CODE: 543318. We, AAB Business Trust, Acquirer and member of the Promoter group of the Company With reference to the captioned subject and further to our intimations dated 1st June 2026 and 11th June 2026 filed under R [Showing first 8,000 characters — download PDF for full document]