It will come into effect from 16 June. The group blamed increasing costs for raw materials, logistics and energy.
The announcement follows a 6% price increase for its Giroform carbonless reels on 19 May.
Mitsubishi HiTec Paper to put up Giroform sheet price
Mitsubishi HiTec Paper UK has announced it will increase the price of its Giroform carbonless sheets by 6%.