The visit was marked by Mr Mackay ringing the building services company’s “success bell”.

Every one of the firm’s seven offices across the UK has a bell which is rung to celebrate an achievement.

Iain Hetherington, Scotland regional director, explained: “It could be for winning a contract, completing a contract or an employee doing something beyond their normal duties.

“After the bell is rung we send an email to everyone across the company. It’s just a way of recognising good work and it’s good for morale.”

Emtec said there were great discussions on innovation, skills and the climate emergency throughout the visit.