Independent carton board stockist, Warren, has confirmed that it is to stock and distribute StoraEnso’s Performa Brilliance GC1 grade into the UK, with immediate effect. Manufactured at their Fors mill in Sweden, Performa Brilliance is described by Stora Enso as ‘the best ever GC1 board we have created’. Warren have Performa Brilliance in stock now, available from 360 Mic / 230 gsm – 585 Mic / 345 gsm and sizes 450 x 640mm – 720 x 1020mm. Heavier weights for Performa Brilliance will also be introduced by StoraEnso later this year.