The Exchange has received the disclosure under Regulation 29(2) of SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011 for CA Harbor Investment & CA Hull Investments

Docusign Envelope ID: 45A0FA88-32D3-8C58-81CD-69393619A955 August 27, 2026 National Stock Exchange of BSE Limited Viyash Scientific Limited India Limited (Scrip code: 512529) 3rd Floor, Srivalli’s Corporate, Plot No. (Symbol: VIYASH) Phiroze Jeejeebhoy Towers, 290, Sy. No. 33, 34P TO 39, Guttala Exchange Plaza, Dalal Street, Begumpet, Jubilee Hills, Shaikpet, Bandra Kurla Complex, Mumbai - 400001 Hyderabad, Telangana, 500033 Bandra (East), CIN: L99999TS1985PLC196357 Mumbai – 400051 Attn: Compliance Officer Sub: Disclosure under Regulation 29(2) read with Regulation 29(3) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 (SEBI SAST Regulations) Dear Sirs/Madam, In compliance with the disclosure requirements under Regulation 29(2) read with Regulation 29(3) of the Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, please find enclosed herewith the disclosure in the prescribed format in relation to the sale of 2,47,61,691 equity shares and 2,56,04,156 equity shares of Viyash Scientific Limited by CA Harbor Investments and CA Hull Investments respectively. Kindly take the same on record. Yours sincerely, For CA Harbor Investments For CA Hull Investments Name: Santosh K Gujadhur Name: Santosh K Gujadhur Designation: Director Designation: Director Place: Mauritius Place: Mauritius Date: August 27, 2026 Date: August 27, 2026 Docusign Envelope ID: 45A0FA88-32D3-8C58-81CD-69393619A955 DISCLOSURE UNDER REGULATION 29(2) OF SEBI (SUBSTANTIAL ACQUISITION OF SHARES AND TAKEOVERS) REGULATIONS, 2011 Name of the Target Company (TC) Viyash Scientific Limited (“Target Company”) Name(s) of the acquirer/seller and Sellers: CA Harbor Investments (“CA Harbor”) and CA Hull Investments (“CA Persons Acting in Concert (PAC) Hull”). with the seller Persons Acting in Concert: CA Harbor and CA Hull are promoters of the Target Company, and persons acting in concert with each other. Whether the acquirer/seller belongs Yes, CA Harbor and CA Hull are promoters of the Target Company. to Promoter/ Promoter group Name(s) of the Stock Exchange(s) National Stock Exchange of India Limited where the shares of TC are Listed BSE Limited Details of the acquisition/disposal as Number % w.r.t. total % w.r.t. total diluted follows share/voting capital share/voting capital of wherever the TC (**) applicable (*) CA Harbour CA Hull CA CA Hull CA CA Hull Harbour Harbour Before the acquisition/disposal under consideration, holding of Seller and PAC: a) Shares carrying voting rights 13,16,80,103 13,61,60,231 30.14% 31.17% 27.44% 28.37% b) Shares in the nature of - - - - - - encumbrance (pledge/ lien/ non- disposal undertaking/ others) c) Voting rights (VR) otherwise - - - - - - than by equity shares d) Warrants/convertible securities - - - - - - /any other instrument that entitles the acquirer to receive shares carrying voting rights in the TC (specify holding in each category) e) Total (a+b+c+d) 13,16,80,103 13,61,60,231 30.14% 31.17% 27.44% 28.37% Details of acquisition/sale a) Shares carrying voting rights 2,47,61,691 2,56,04,156 5.67% 5.86% 5.16% 5.33% sold b) VRs sold otherwise than by - - - - - - shares c) Warrants/convertible securities - - - - - - /any other instrument that entitles the acquirer to receive shares carrying voting rights in the TC (specify holding in each category) sold d) Shares encumbered/invoked/released by the acquirer Docusign Envelope ID: 45A0FA88-32D3-8C58-81CD-69393619A955 e) Total (a+b+c+/-d) 2,47,61,691 2,56,04,156 5.67% 5.86% 5.16% 5.33% After the acquisition/ sale, holding of Seller and PAC: a) Shares carrying voting rights 10,69,18,412 11,05,56,075 24.47% 25.31% 22.28% 23.03% b) Shares encumbered with the - - - - - - acquirer c) VRs otherwise than by equity - - - - - - shares d) Warrants/convertible securities - - - - - - /any other instrument that entitles the acquirer to receive shares carrying voting rights in the TC (specify holding in each category) after sale e) Total (a+b+c+d) 10,69,18,412 11,05,56,075 24.47% 25.31% 22.28% 23.03% Mode of acquisition/sale (e.g. open Open Market market/public issue/rights issue/preferential allotment/ inter-se transfer etc.) Date of acquisition / sale of shares / August 26, 2026 VR or date of receipt of intimation of allotment of shares, whichever is applicable Equity share capital/total voting 87,37,50,954 (43,68,75,477 equity shares of face value Rs. 2 each) capital of the TC before the said acquisition/ sale Equity share capital/total voting 87,37,50,954 (43,68,75,477 equity shares of face value Rs. 2 each) capital of the TC after the said acquisition/sale Total diluted share/voting capital of 95,98,57,830 (47,99,28,915 equity shares of face value Rs. 2 each) the TC after the said acquisition/sale Note: (*) Total share capital/ voting capital taken as per the latest filing done by the company to the Stock Exchange under Regulation 31 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 for the quarter ended June 30, 2026 as available on the website of the stock exchanges. (**) Diluted share/voting capital means the total number of shares in the Target Company assuming full conversion of the outstanding convertible securities/warrants into equity shares of the Target Company. Yours sincerely, For CA Harbor Investments For CA Hull Investments Name: Santosh K Gujadhur Name: Santosh K Gujadhur Designation: Director Designation: Director Place: Mauritius Place: Mauritius Date: August 27, 2026 Date: August 27, 2026