SPIRENT COMMUNICATIONS PLC

Notice of 2021 Full Year Results Presentation

London, UK - 31 January 2022: Spirent Communications plc ("Spirent", the "Company" or the "Group") (LSE: SPT), the leading provider of automated test and assurance solutions for next-generation devices and networks, will announce its full year results for the financial year ended 31 December 2021 on Thursday, 10 March 2022, before the opening of the UK market.

The Company will publish a recorded presentation at 7.00am UK time on Thursday, 10 March 2022 on its website. The Company will also host a live, virtual results Q&A session for the analyst community at 9.30am UK time on Thursday, 10 March 2022.  

A recording of the presentation will be available at the Investors section of the Spirent Communications plc website https://corporate.spirent.com/.

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About Spirent Communications plc

Spirent Communications plc (LSE: SPT) is the leading global provider of automated test and assurance solutions for networks, cybersecurity and positioning. The Company provides innovative products, services and managed solutions that address the test, assurance and automation challenges of a new generation of technologies, including 5G, SD-WAN, Cloud, autonomous vehicles and beyond. From the lab to the real world, Spirent helps companies deliver on their promise to their customers of a new generation of connected devices and technologies. Further information about Spirent Communications plc can be found at https://corporate.spirent.com/.

Spirent Communications plc Ordinary Shares are traded on the London Stock Exchange (ticker: SPT; LEI: 213800HKCUNWP1916L38). The Company operates a Level 1 American Depositary Receipt (ADR) programme with each ADR representing four Spirent Communications plc Ordinary Shares. The ADRs trade in the US over-the-counter (OTC) market under the symbol SPMYY and the CUSIP number is 84856M209. Spirent ADRs are quoted on the Pink OTC Markets electronic quotation service which can be found at https://www.otcmarkets.com/marketplaces/otc-pink.

Spirent and the Spirent logo are trademarks or registered trademarks of Spirent Communications plc. All other trademarks or registered trademarks mentioned herein are held by their respective companies. All rights reserved.