Chief executive Malcolm Miller said Pace has decided to lead a price war that has seen box prices fall by an average 12% and would continue its discounting strategy to win 15% of the US market within two years. Despite a 17% rise in shipments, falling box prices pegged half-year sales growth to 1 December to 4.9% to a total £216m and Pace warned annual revenues would be 'broadly similar' to last year's £524m.