External Auditor Appointment

29 September 2020

NMCN PLC

External Auditor Appointment

nmcn Plc ("the Company") announces that following a competitive audit tender process conducted in compliance with EU Audit Regulations and best practice guidelines, it has appointed Ernst & Young LLP as its external auditor with immediate effect, following BDO LLP's resignation as external auditor to nmcn Plc with effect from 30 July 2020. In accordance with s.520 of the Companies Act 2006, the Company has sent a letter to its Shareholders providing them with a copy of the requisite statement from BDO LLP confirming that there are no reasons or matters connected with their ceasing to hold office as Auditor which they consider should be brought to the attention of members or creditors of the Company. In accordance with Listing Rule 9.6.1, a copy of the letter has been submitted to the UK Listing Authority via the National Storage Mechanism and will shortly be available for inspection at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

Enquiries:

nmcn PLC - 01623 515008

Ian Elliott, Acting Chairman

Robert Moyle, Acting Chief Executive

Mike Holt, Audit Committee Chair

About nmcn

nmcn PLC (TIDM: NMCN) is a leading engineering and construction company in the UK. Its talented 1,800-strong team offers multi-sector engineering and construction skills, technical innovation, design, and specialist fabrication.

The Company delivers major built environment and water industry projects across the UK - from buildings and highways to large-scale water networks and treatment plants. With its history dating back to 1946, nmcn now has 12 UK offices and four off-site manufacturing facilities.

LEI Number: 213800ANYQVA5OS51A68

www.nmcn.com