OCT is representing Plansee since 1921 in Belgium as in Luxemburg. Plansee is the world leader in the manufacturing of refractory metals by powder metallurgical way.

With a product range covering molybdenum, tungsten, tantalum, niobium, chromium and their alloys,  PLANSEE is pointing the way for highest quality.

On their high-tech facilities, semi-finished products, such as sheets, wires and ribbons, as well as the world´s widest range of finished products made of refractory metals are manufactured for a great variety of industrial fields of application:

lighting technology


medical technology

furnace construction

aerospace industry

automotive industry

coating technology

power engineering

chemical engineering

glass and ceramics

joining technology


tool making