|1884||Bender begins manufacturing cork stoppers in Frankenthal / Pfalz, Germany.|
|1925||UCP is formed as Kork-n-Seal making Lever caps & lead capsules in London, UK.|
|1938||Astra is founded in Lyon, France, and starts producing aluminium closing devices.|
|1945||Kork-n-Seal moves to present site at Bridge of Allan, Scotland.|
|1949||Zeller Plastik is founded in Zell, Mosel, Germany.|
|1953||Astra begins manufacturing plastic closing devices.|
|1960||Kork-n-Seal begins manufacturing Pilferproof Caps.|
|1961||Obrist enters the closure market producing metal crown corks in Voghera, Italy.|
|1963||UCP's present site at Norwich opens under the name of UC Key Plastics.
Obrist sets up production of injection moulded plastic closures in Rheinach, Switzerland.
||UCP Norwich develops child resistant closure systems such as Clic-Loc, Angle Neck Bleach, Simploc and Niploc, most of which are patented.|
|1971||Zeller Plastik launches the first worldwide patented snap-hinge closure, the Mark I.|
|1972||Massmould is founded in London, UK.|
|1980||Obrist enters the US market in Sandston, Virginia.
Zeller Plastik completes the development of the "Zelsnap" snap-hinge closure, with the Mark II.
|1982||The site at Bridge of Allan is renamed United Closures & Plastics.|