For the first time in years, German sweet makers have seen a significant drop in the number of exports to Britain, Stephan Nießner said.
The UK market makes up a significant proportion of Germany’s confectionary exports, with around seven percent of sweets produced in the country bound for Great Britain.
Addressing business leaders in Berlin, Mr Nießner, Chairman of the Association of the German Confectionery Industry, said the value of sweets and snacks sold to the UK had fallen by 5.1 percent since the Brexit referendum in 2016.
He attributed the loss in export revenue to the decrease in the value of the pound after Britain voted to leave the European Union.
Mr Nießner went on to explain this had made imported German sweets more expensive for British consumers.
Germany has long enjoyed a large trade surplus, selling far more of its products to other countries than it imports.
The European economic powerhouse currently sells goods and services worth some £216bn ($301bn) more than it buys in, however that figure is dropping.
Germany and the UK are major trading partners, and negotiators from both nations are keen to secure a Brexit trade deal which will continue to allow business to flourish.
In Bremen, for example, there are around 300 businesses which rely on close links with Britain.
The northwestern German city is home to one of the factories used by aeronautical giant Airbus to design and manufacture aircraft parts.
The plant exports some £123million in goods to the UK every year.
Bremen is also home to several large automotive factories, including a massive Mercedes-Benz factory.
Sixty-eight percent of the cars produced in the city are shipped to the UK.
News that the German confectionery industry is suffering in the wake of the UK’s Brexit vote comes as Angela Merkel insisted the reason her country enjoyed such a large surplus was because German-made products are in such demand.
In a swipe at President Donald Trump’s threat of a trade war with the EU, Mrs Merkel said Germany’s healthy economy spoke for itself, adding “our products are in demand.”
(Additional reporting by Monika Pallenberg.)