Posting of Circular and Notice of General Meeting

3 February 2021

NMCN PLC

("nmcn" or "the Company" or "the Group")

Posting of Circular and notice of General Meeting

nmcn today announces that it will today post a circular to shareholders convening a general meeting ("General Meeting") to seek shareholder consent to extend the borrowing limit within the Company's articles. The Board believes this is prudent to futureproof the ongoing growth and development of the business. In September 2020 the Board appointed Arrowpoint Advisory, part of Rothschild & Co, to help secure a debt package more appropriate to the size and nature of the Group's businesses and risk profile. The Board are currently working on finalising a medium-term debt package by way of a term loan or revolving credit facility or a combination of the two to sit alongside the Company's existing overdraft facility.

The General Meeting will be held at Nunn Close, The County Estate, Huthwaite, Sutton-in-Ashfield, Notts NG17 2HW at 9.30 am on 26 February 2021. Shareholders are reminded that in view of the ongoing COVID-19 pandemic and the uncertainty around the timeframe for relaxing the UK Government's current compulsory measures prohibiting, among other things, public gatherings of more than two people, shareholders may not attend the General Meeting in person and, instead, will need to exercise their right to submit their votes by proxy.

A copy of the circular will shortly be available from the Company's website: www.nmcm.com and will be submitted to the National Storage Mechanism where it will shortly be available to view at https://www.fca.org.uk/markets/primary-markets/regulatory-disclosures/national-storage-mechanism.

This announcement contains inside information for the purposes of Article 7 of the Regulation (EU) No 596/2014 on market abuse.

The directors of nmcn plc accept responsibility for the contents of this announcement.

About nmcn

nmcn Plc (TIDM: NMCN) is a leading engineering and construction company in the UK. Its talented 2,000 strong workforce offers multi-sector engineering and construction skills, technical innovation, design and specialist fabrication.

The Company delivers major built environment and water industry project 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.nmcm.com