European Union exports to central and eastern Europe jumped by 20.7% in the first half of 1997 compared with the same period in 1996.
But Britain had only 5.8% of the £26bn total, with exports worth just £152.4m.
The 20.7% rise followed an overall 18.8% growth in EU exports to the region between 1995 and 1996.
Germany accounted for 41% of sales to central and eastern Europe in the first half of 1997, or £1bn. Italy and Austria were the next biggest sellers to the region.