Please find enclosed herewith BRSR for the FY2026.

Telephone: +91 22 6661 7272 | Email: info.india@blackbox.com BBOX/SD/SE/2026/81 August 24, 2026 Corporate Relationship Department Corporate Relationship Department Bombay Stock Exchange Limited National Stock Exchange Limited P.J. Towers, Dalal Street, Exchange Plaza, Bandra Kurla Complex, Fort, Mumbai 400001 Bandra East, Mumbai 400051 Sub: Submission of Business Responsibility and Sustainability Report for FY 2025-26 Ref.: Scrip code: BSE: 500463/NSE: BBOX Dear Sir/Madam, Pursuant to Regulation 34(2)(f) of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, please find enclosed herewith the Business Responsibility and Sustainability Report for FY 2025-26. The copy of the aforesaid Report is attached herewith for your perusal and is also available on the website of the Company at www.blackbox.com. This is for your information, record and necessary dissemination to all the stakeholders. For Black Box Limited Aditya Goswami Company Secretary & Compliance Officer Encl.: A/a. BLACK BOX LIMITED Registered Office: 501, 5th Floor, Building No. 9, Airoli Knowledge Park, MIDC Industrial Area, Airoli, Navi Mumbai 400 708, India BLACKBOX.COM | CIN: L32200MH1986PLC040652 | Tel: +91 22 6661 7272 Black Box Limited R E D E F I N E R E A D Y Business Responsibility and Sustainability Reporting (BRSR) Financial Year 2025-2026 SECTION A: GENERAL DISCLOSURES I. Details of the listed entity 1. Corporate Identity Number (CIN) of the Listed Entity L32200MH1986PLC040652 2. Name of the Listed Entity Black Box Limited 3. Year of incorporation 1986 4. Registered office address 501, 5th Floor, Building No.9, Airoli Knowledge Park, 5. Corporate address MIDC Industrial Area, Airoli, Navi Mumbai - 400708 6. E-mail investors@blackbox.com 7. Telephone +91 22 6661 7272 8. Website www.blackbox.com 9. Financial year for which reporting is being done April 1, 2025, to March 31, 2026 10. Name of the Stock Exchange(s) where shares are The Bombay Stock Exchange (BSE) and the National Stock listed Exchange of India (NSE). 11. Paid-up Capital `35,49,90,510 12. Name and contact details India: Apurva Raizada, T: +91 22 6661 7272, USA: Lou Gorga: +1 7248736970, Email: Sustainability.ESG@BlackBox.com 13. Reporting boundary On a consolidated basis. This report covers the operations of Black Box Limited across all the locations globally. 14. Name of the assessment/ assurance provider - 15. Type of assessment/ assurance obtained No external assessment or assurance was obtained for the reporting year. The disclosures were reviewed through the Company’s internal data validation and approval processes involving the respective functional departments. II. Products/services 16. Details of business activities (accounting for 90% of the turnover): Sr. Description of Business % of Turnover of Description of Main Activity No. Activity the entity 1. Information & Communication IT Products, Solutions, 100% Technologies (ICT) Solution Integration Services and Consulting 17. Products/Services sold by the entity (accounting for 90% of the entity’s Turnover): Sr. % of total Turnover Product / Service NIC Code No. contributed 1. Information & Communication Technologies (ICT) Solution 62099 100% Integration PB 1 Black Box Limited R E D E F I N E R E A D Y III. Operations 18. Number of locations where facilities and/or operations/offices of the entity are situated: Location Number of Offices Total National 13 13 International 52 52 Note: Black Box does not produce any physical products or own/operate any manufacturing facilities/plants. Therefore, disclosure regarding the number of plants is not applicable to the Company. 19. Markets served by the entity: a. Number of locations Location Number of Offices/Facilities National (No. of states) 28 States + 8 Union Territories International (No. of Countries) 35 b. What is the contribution of exports as a percentage of the total turnover of the entity? The contribution of exports to the total turnover of the Indian legal entities is 7.77% for Black Box Limited (BBL) and 87.66% for Black Box Network Services (BBNS). c. A brief on types of customers: Black Box serves customers across a wide range of industries, including Broadcast, Data Centre, Education, Finance, Government, Healthcare, Manufacturing & Industrial, Retail, Transportation, Utilities, Power, Oil & Gas, Workspaces, Entertainment & Leisure Venues, Military & Defense, and Public Safety. This customer profile reflects Black Box’s role as a global digital infrastructure solutions integrator and managed technology services partner, supporting secure connectivity, resilient IT infrastructure, operational continuity, real-time communication, and mission-critical technology environments across industries. IV. Employees 20. Details as of the end of the Financial Year: a. Employees and workers (including differently abled): Particulars Total (A) No. Male Female No. (B) % (B / A) No. (C) % (C / A) Employees 1. Permanent (D) 2,931 2,370 80.86% 561 19.14% 2. Other than Permanent (E) - - - - - 3. Total employees (D + E) 2,931 2,370 80.86% 561 19.14% Workers 4. Permanent (F) - - - - - 5. Other than Permanent (G) 496 465 93.75% 31 6.25% 6. Total workers(F + G) 496 465 93.75% 31 6.25% Black Box Limited R E D E F I N E R E A D Y b. Differently abled Employees and workers: Sr. Male Female Particulars Total (A) No. No. (B) % (B / A) No. (C) % (C / A) Differently abled Employees 1. Permanent (D) and Other than Permanent (E) 39 35 89.74% 4 10.26% 2. Total employees (D + E) 39 35 89.74% 4 10.26% *Worker data is not tracked for the reporting year. 21. Participation/Inclusion/Representation of Women: Number and Total (A) Percentage of Females No. (B) % (B/A) 7 1 14.28% Board of Directors 3 0 0% Key Management Personnel 8 0 0% Senior Management Personnel (Top Executives) 22. Turnover rate for permanent employees and workers: FY 2025-2026 FY 2024-2025 FY 2023-2024 Male Female Total Male Female Total Male Female Total Permanent Employees 23.00% 5.00% 28.00% 17.00% 13.00% 30.00% 17.00% 4.50% 21.50% Permanent Workers - - - - - - - - - Black Box employs only contractual or temporary workers; permanent workers are not hired. V. Holding, Subsidiary, and Associate Companies (including joint ventures) 23. (a) Names of holding/subsidiary / associate companies / joint ventures Does the entity indicated Indicate whether Name of the holding/subsidiary % of shares in column A, participate in Sr. holding/ Subsidiary/ / associate companies / joint held by the the Business Responsibility No. Associate/ Joint ventures (A) listed entity initiatives of the listed Venture entity? (Yes/No) 1. Black Box Technologies Pte. Ltd. Subsidiary Company 100% Yes 2. Black Box Technologies Group B.V. Step-down subsidiary 100% Yes 3. AGC Networks Philippines Inc. Step-down subsidiary 100% Yes 4. AGC Networks & Cyber Solutions Step-down subsidiary 100% Yes Limited 5. Black Box Products FZE Step-down subsidiary 100% Yes 6. AGC Networks LLC, Dubai Step-down subsidiary 49% Yes 7. BBX Main Inc. Step-down subsidiary 100% Yes 8. Cybalt LLC Step-down subsidiary 100% Yes 9. BBX Inc. Step-down subsidiary 100% Yes 10. Black Box Bangladesh Step-down subsidiary 100% Yes Technologies Pvt. Ltd. Black Box Limited R E D E F I N E R E A D Y Does the entity indicated Indicate whether Name of the holding/subsidiary % of shares in column A, participate in Sr. holding/ Subsidiary/ / associate companies / joint held by the the Business Responsibility No. Associate/ Joint ventures (A) listed entity initiatives of the listed Venture entity? (Yes/No) 11. Black Box Corporation Step-down subsidiary 100% Yes 12. Black Box Chile S.A Step-down subsidiary 100% Yes 13. Black Box Network Services (UK) Step-down subsidiary 100% Yes Limited 14. Black Box Finland OY Step-down subsidiary 100% Yes 15. Black Box Network Services India Step-down subsidiary 100% Yes Private Limited 16. Black Box Network Services Step-down subsidiary 100% Yes (Dublin) Limited 17. Black Box Network Ser [Showing first 8,000 characters — download PDF for full document]