Omya International AG (Head Office) - Ingredients Directory Go back to directory. Add to Address Book. Omya International AG (Head Office) Omya International AG (Head Office) Beslerstrasse 42 Oftringen – Aargau Switzerlandhome 4665 home Phone: +41 62 789 29 29work Fax: +41 62 789 20 77workfax
