He worked for UPM for more than 23 years, starting his career with Caledonian Paper, and held a number of senior roles.

Will Oldham, general manager UPM UK, said: "All of David's colleagues and customers are deeply saddened by this news. 

"David was universally recognised for his professionalism and above all his positive approach to life. At this time our thoughts are with David's wife and family."

In his memory, his family are asking for donations to a trust dedicated to research into these types of brain cancer, which still have no effective treatment - http://www.justgiving.com/DaveTelford

All further enquiries should be directed to Will Oldham, 0870 6000 876.