Prior to publication, the information contained within this announcement was deemed by the Group to constitute inside information for the purposes of Regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310. With the publication of this announcement, this information is now considered to be in the public domain.

11 April 2023

EnSilica plc

("EnSilica", the "Company" or the "Group")

Directorate Change

EnSilica (AIM:ENSI), a leading mixed signal chip maker, announces that Matthew Wethey, Chief Financial Officer, has stepped down from his position at the Company. During his time at EnSilica, Matthew played a key role in managing the Company through its IPO in May 2022, including preparing to scale the business and laying the foundations for future revenue growth. The board is grateful to Matthew for his contribution during a period of significant operational change and wishes him every success in the future.

The Company has begun a process to appoint a permanent successor and a further announcement will be made in due course.

To support the business while this search is ongoing, the Board announces the appointment of Chris Mann, who will serve as Interim Chief Financial Officer (non-Board) from 11th April 2023.

Chris is a chartered accountant with a wide range of finance leadership experience gained in listed and private company environments and notably in businesses undergoing progressive development and change.

Ian Lankshear, Chief Executive Officer of EnSilica plc, commented:

"I would like to personally thank Matthew for all his efforts during what has been a significant period of financial and strategic progress for the company, culminating in our successful IPO in May 2022. On behalf of everyone at EnSilica, I would like to wish Matthew all the very best in his future endeavours."

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About EnSilica

EnSilica is a leading fabless design house focused on custom ASIC design and supply for OEMs and system houses, as well as IC design services for companies with their own design teams. The company has world-class expertise in supplying custom RF, mmWave, mixed signal and digital ICs to its international customers in the automotive, industrial, healthcare and communications markets. The company also offers a broad portfolio of core IP covering cryptography, radar, and communications systems. EnSilica has a track record in delivering high quality solutions to demanding industry standards. The company is headquartered near Oxford, UK and has design centres across the UK and in India and Brazil.