The company had no comment with regards to the fall in the share price. Results for the first six months of the year will be published on July 27.

Analysts at Equita wrote they expect first-half profit margins to fall year-on-year, bogged down by the group's North American division, hit by rising labour and raw material costs.

(Reporting by Elisa Anzolin, writing by Giulia Segreti; editing by Agnieszka Flak)