When Helen Wang’s Abakus Foods is ready to ship its seaweed crisps -- stocked in the likes of J Sainsbury Plc and Asda -- she calls up a haulier.
Normally, a truck comes the same day to collect them from her base in northeast London. But, in recent weeks, there has been a problem: a national shortage of lorry drivers means deliveries are facing days-long delays, and stock is piling up.
