Return of Capital, B Shares Issue and Redemption

CML Microsystems Plc

(the "Company" or the "Group")

Return of Capital Update, Issue and Redemption of B Shares and Total Voting Rights

CML Microsystems Plc, which develops mixed-signal, RF and microwave semiconductors for global communications markets, announces that it has issued 16,551,685 redeemable preference shares of 50 pence each in the capital of the Company ("B Shares") relating to its return of capital.

No application has been, or will be, made to the UK Listing Authority or to the London Stock Exchange, respectively, for any of the B Shares to be admitted to the Official List or to trading on the London Stock Exchange's main market for listed securities, nor will the B Shares be listed or admitted to trading on any other recognised investment exchange.

No share certificates will be issued in respect of the B Shares and no CREST accounts will be credited with B Shares.

Assuming there is no extraordinary change in the position of the Company or market conditions generally, the Company will redeem the B Shares at 6.00 p.m. today for 50 pence per B Share. It is expected that shareholders entitled to receive payments in respect of the proceeds of the redemption of the B Shares will receive payment on or around 26 March 2021.

Total Voting Rights

Following the redemption of the B Shares, the total number of Ordinary Shares in issue will be 17,190,152, with each Ordinary Share holding one voting right, and the total number of treasury shares held will be 638,467. Therefore, the total number of voting rights in the Company will be 16,551,685 and this figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in the Company, under the FCA's Disclosure Guidance and Transparency Rules.

About CML Microsystems PLC

CML develops mixed-signal, RF and microwave semiconductors for global communications markets. The Group utilises a combination of outsourced manufacturing and in-house testing with trading operations in the UK, Asia and USA. CML targets sub-segments within Communication markets with strong growth profiles and high barriers to entry. It has secured a diverse, blue chip customer base, including some of the world's leading commercial and industrial product manufacturers.

The spread of its customers and diversity of the product range largely protects the business from the cyclicality usually associated with the semiconductor industry. Growth in its end markets is being driven by factors such as the appetite for data to be transmitted faster and more securely, the upgrading of telecoms infrastructure around the world and the growing prevalence of private commercial wireless networks for voice and/or data communications linked to the industrial internet of things (IIoT).

The Group is cash-generative, has no debt and is dividend paying.