At the end of the 19th century, Trelleborg became an industrial town and the foundation of modern Trelleborg has largely been created by a few large companies; most notably Trelleborg Industries and the ferry company and business related to the seaport. Much of it has been the work of the influential businessman Johan Kock. Other important industries he established were "Akzo Nobel Inks", Today called Flint Group Sweden, manufacturing printing inks (established as "Gleitzman Industries" in the 1890s), and DUX, who make beds. Later in the 1950s, Perstorp (Flooring) Industries was established in Trelleborg and it manufactures flooring boards and other plastic material. Trelleborg continues to be a working-class-oriented city and is politically a traditional stronghold for the Swedish Social Democratic Party. However, since the latest elections in 2006 the Social Democratic Party is in opposition in the municipality.