Press Release

Telephone: +91 22 6661 7272 | Email: info.india@blackbox.com BBOX/SD/SE/2026/74 August 12, 2026 Corporate Relationship Department Corporate Relationship Department Bombay Stock Exchange Limited The National Stock Exchange of India Limited P.J. Tower, Dalal Street, Exchange Plaza, Bandra Kurla Complex, Fort, Mumbai 400001 Bandra East, Mumbai 400051 Sub: Press Release on Data Centre Order from New Tier-1 U.S. Hyperscaler Ref.: Scrip code: BSE: 500463/NSE: BBOX Dear Sir/Madam, Please find attached herewith the Press release titled “Data Centre Order from New Tier-1 U.S. Hyperscaler”. This is for your information, record and necessary dissemination to all the stakeholders. Thanking You, 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 Data Centre Order from New Tier-1 U.S. Hyperscaler Landmark win adds a net-new marquee hyperscaler to Black Box's portfolio and reinforces its position as a trusted AI-led digital infrastructure partner for large-scale Data Centre buildouts Mumbai, August 12, 2026: Black Box Limited (BSE: 500463 | NSE: BBOX), a leading provider of digital infrastructure solutions, today announced that it has secured a US$131 million (~₹1,240 crore) order with a new U.S.-based global Tier-1 hyperscaler for a major data centre project in the U.S. The win marks a significant breakthrough for Black Box in the U.S. hyperscaler market, adding a net- new marquee customer to its growing hyperscaler portfolio. It builds on the Company's existing work with leading global hyperscalers and further strengthens the data centre industry as a key growth engine for Black Box. The engagement was secured following a sustained and focused pursuit of the opportunity, supported by strong leadership engagement, deep domain expertise and a differentiated value proposition. Black Box demonstrated its ability to support the customer’s large-scale infrastructure requirements through detailed planning and a phased delivery approach, providing a clear roadmap for execution at scale. Under the engagement, Black Box will deliver work at a key location in the U.S. over approximately a three-year period, with further expansion expected in due course. Mr. Sanjeev Verma, Whole-time Director & Chief Executive Officer, said, “This is a landmark win for Black Box and an important step forward in our hyperscaler growth journey. Securing a major engagement with a new Tier-1 global hyperscaler reflects the strength of our capabilities, our customer- focused approach and the confidence that leading technology companies are placing in Black Box to execute complex, mission-critical data centre infrastructure at scale. Our focus now is firmly on execution and delivering to the highest standards. We believe successful delivery of this engagement can create a strong foundation for expanding our relationship with this customer over time, while further strengthening Black Box’s position in the global hyperscaler ecosystem.” About Black Box Limited Black Box (BSE: 500463/NSE: BBOX) is a global leader in digital infrastructure solutions, delivering network and system integration, managed services, and technology products to 120 of the Fortune 500 and top global enterprises. With a presence across the United States, Europe, India, Asia Pacific, the Middle East, and Latin America, Black Box serves businesses across financial services, technology, healthcare, retail, public services, and manufacturing. Supported by a global team of around 4,000 professionals and strategic partnerships with leading technology providers, Black Box delivers end-to-end solutions in network integration, digital connectivity infrastructure, data centre buildouts, modern workplace solutions, and cybersecurity. Its Technology Products portfolio enhances business operations with cutting-edge solutions in AV, IoT, KVM, Networking, Infrastructure, and Cables. For more information, visit www.blackbox.com Safe Harbor Statement: Statements in this document relating to future status, events, or circumstances, including but not limited to statements about plans and objectives, the progress and results of research and development, potential project characteristics, project potential and target dates for project related issues are forward- looking statements based on estimates and the anticipated effects of future events on current and developing circumstances. Such statements are subject to numerous risks and uncertainties and are not necessarily predictive of future results. Actual results may differ materially from those anticipated in the forward-looking statements. The Company assumes no obligation to update forward-looking statements to reflect actual results, changed assumptions or other factors. For further information, please contact Black Box Limited Investor Relations Advisors: CIN: L32200MH1986PLC040652 Strategic Growth Advisors Pvt. Ltd. CIN: U74140MH2010PTC204285 Mr. Purvesh Parekh (Head of Investor Relations) Mr. Rahul Agarwal / Mr. Karan Thakker purvesh.parekh@blackbox.com rahul.agarwal@sgapl.net/ Ms. Ritu Rungta (Head of Corporate Communications) karan.Thakker@sgapl.net ritu.rungta@blackbox.com +91 982143 8864 / +91 81699 62562 www.blackbox.com http://www.sgapl.net