Built on experience. Scaling through capacity.

The Paper division reflects a legacy of industrial strength shaped by responsibility, consistency, and a clear long-term vision.

Kappa Star K Logo

Built on experience. Scaling through capacity.

The Paper division reflects a legacy of industrial strength shaped by responsibility, consistency, and a clear long-term vision.

Umka Cardboard Mill, a trusted name
in recycled cardboard production. For over
80 years, Umka has been a trusted supplier to
partners across Europe. It is a part of Kappa Star
Group since 2003, driving continuous growth and
modernization within the Group’s industrial portfolio.

Our companies

Our companies

Umka Cardboard Mill, a trusted name
in recycled cardboard production. For over
80 years, Umka has been a trusted supplier to
partners across Europe. It is a part of Kappa Star
Group since 2003, driving continuous growth and
modernization within the Group’s industrial portfolio.

Founded in 1939, Umka is one of
the leading producers of white-lined
chipboard in Southeast Europe. With
an annual capacity of 250,000 tonnes, its
portfolio includes five product grades tailored
for diverse industries.

Founded in 1939, Umka is one of
the leading producers of white-lined
chipboard in Southeast Europe. With
an annual capacity of 250,000 tonnes, its
portfolio includes five product grades tailored
for diverse industries.

Umka operates using 100% recycled
wastepaper, making it Serbia’s largest
wastepaper recycler. Its products are used
in packaging for food, cosmetics, pharmaceuticals,
and other demanding applications.

Umka operates using 100% recycled
wastepaper, making it Serbia’s largest
wastepaper recycler. Its products are used
in packaging for food, cosmetics, pharmaceuticals,
and other demanding applications.