Apr 02, 2010. /Lesprom Network/. Iggesund Paperboard announces a price increase for both its solid bleached board range, Invercote, and its folding box board, Incada, throughout Europe. The increase will amount to Euro100 per tonne in continental Europe and GBP 100 ($152) per tonne in the United Kingdom for deliveries from the 10th of May. The company says quickly rising raw material prices are behind the move. Iggesund Paperboard is a member of the Holmen Group, one of Europe's largest forest industry companies.