Holding in Company

CML Microsystems PLC
17 April 2001

                     CML Microsystems Plc ('the Company')

                              Holding in Company


The Company was notified today by Fidelity International Limited ('Fidelity')
that Fidelity is interested in 910,030 ordinary 5p shares of the Company
('Ordinary Shares') representing 6.23 per cent. of the Company's issued
ordinary share capital. In addition, this notifiable interest also comprises
Edward C Johnson a Principal shareholder of Fidelity.

The Ordinary Shares are registered as follows:

Registered Holder                                     No of shares   Percentage

Clydesdale Bank (Head Office) Nominees Limited             550,000         3.77
Chase Nominees Ltd                                         105,000         0.72
Clydesdale Bank (Head Office) Nominees Limited             200,000         1.37
Bankers Trust                                               55,030         0.38


Total                                                      910,030         6.23




17 April 2001