The following amendment has been made to the 'Interim Dividend' announcement released on 17 December 2025 at 7:00 a.m. under RNS No 7651L.

'to shareholders on the register at close of business on 12 December 2025' has been amended to 'to shareholders on the register at close of business on 19 December 2025'

All other details remain unchanged.

The full amended text is shown below.

Vianet Group PLC

(the "Company")

Interim Dividend

Vianet Group plc (AIM: VNET), an international provider of actionable data, business insights, and payment solutions through an integrated ecosystem of connected hardware devices, software platforms and smart insights portals, confirms, further to the interim results announcement for the period ended 30 September 2025, that an interim dividend of 0.4 pence per ordinary share will be paid on 28 January 2026 to shareholders on the register at close of business on 19 December 2025.

Enquiries

Vianet Group plc
James Dickson, Chairman & CEO
Sarah Bentham, CFO
Tel: +44 (0) 1642 358 800
www.vianetplc.com

Cavendish Capital Markets Limited
Stephen Keys / Isaac Hooper
Tel: +44 (0) 20 7220 0500

Investor enquiries:

Dale Bellis
Tel: +44 (0) 20 7397 1928

www.cavendish.com

About Vianet

Vianet is a leading provider of actionable management information and business insight derived from connected IoT devices, cloud-based software platforms, and advanced data analytics. With over 250,000 connected devices transmitting data daily, the Group delivers mission-critical insight to customers across hospitality, unattended retail, vending, coffee and fuel forecourts.

Vianet's end-to-end solutions include telemetry, connectivity, contactless payment solutions, inventory management, energy-saving services, and advanced business intelligence platforms, enabling customers to optimise profitability, improve operational efficiency and enhance cashflow performance.

For further information, please visit www.vianetplc.com