The group had already hiked prices by "mid-single" digits last year to offset the rising costs of cocoa.
"The cocoa market was volatile in the reporting year, with cocoa prices remaining at a historic high by the end of 2024," Lindt said in a statement.
"Offsetting the high cocoa costs forced the Group to adjust its pricing, which will be further required in 2025."
The company posted organic sales growth -- which excludes currency fluctuations and acquisitions -- of 7.8 percent in 2024 to 5.47 billion Swiss francs ($6 billion).
It was higher than the 5.45 billion francs expected by analysts surveyed by Swiss business news agency AWP.
Cocoa prices soared 161 percent last year, reaching $10,100 per tonne in mid-December before easing to $9,165 at the end of 2024.
Lindt said it expects organic growth of seven to nine percent in 2025 and an improved operating profit margin.
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