The maker of Quality Street and Lion bars has said it is experiencing some supply chain problems ahead of the Christmas period.
But Mark Schneider, the chief executive of Nestle, told the BBC that it was working hard to make sure products made it shelves this winter.
A number of sectors have had problems with their supply chains due to a chronic HGV driver shortage.
Factors including global bottlenecks with shipping have also played a part.
“Like other businesses, we are seeing some labour shortages and some transportation issues but it’s our UK team’s top priority to work constructively with retailers to supply them,” he said.
When asked whether he could guarantee Quality Street would be in the shops this Christmas he replied: “We are working hard.”
Nestle, which also makes Aero and KitKat, is the world’s largest producer of dairy products – and works with hundreds of thousands of farmers around the world with millions of cows.
Ahead of a major climate summit in Glasgow next month, chief executive Mark Schneider was in the UK to launch a range of non-dairy, plant-based alternatives to its milk and chocolate in an attempt to further reduce the company’s greenhouse gas emissions.
Agriculture accounts for 20% of the world’s greenhouse emissions and methane from belching cows is a major contributor.
Along with new non-dairy products, Nestle is also working with new types of feed for cattle that produce less methane per litre of milk produced.