Several companies have cancelled their participation at this year's glasstec trade show.
MSK, Lisec and Mappi Group are among those who have cancelled their participation at the event in Dusseldorf in October.
Italian glass association GIMAV has advised its members not to attend any trade shows for the rest of the year in the interests of public safety.
Bucher Emhart Glass and Guardian Glass are among those who have already said they do not wish to participate in glasstec this year.
The majority of cancelling companies have requested that the trade fair be postponed by a year.