Bydgoszcz has been the industrial centre of the Kuyavian-Pomeranian Voivodeship region in Poland over the last years. The local economy is based on industries such as tools, plastics processing, electro-machinery, transport, arms and aviation, furniture and agriculture. The industry companies constitute about 10% of all economic activities, employing 50% of all the workforce in Bydgoszcz. The region concentrates a large number of companies operating in the tools and plastics processing industry and is the most powerful toolmaking centre in Poland – known as the Tools Valley. It houses approximately 900 companies engaged in polymer materials processing and about 50 toolmakers.