Spirent Communications plc. (LSE: SPT) offers test, measurement, analytics, and assurance solutions for next-generation devices and networks. The company provides products, services and information for high-speed Ethernet, positioning and mobile network infrastructure markets, with expanding focus on service assurance, cybersecurity and 5G. Spirent is accelerating the transition of connected devices, network equipment and applications from development labs to the operational network, as it continues to innovate toward fully-automated testing and autonomous service assurance solutions. A trusted partner to more than 1,500 customers worldwide each year, Spirent has offices in 30 countries and regions.

For further information, please visit www.spirent.com .

Address: Room 1302-1303, Shining Tower, No.35 Xueyuan Road, Beijing/

Units 804-805A, Tower W1, Oriental Plaza, No.1 East Chang An Avenue, Dongcheng District

Beijing