The story
The company was founded in 1928 under the name FOMU - Fabrika Oružja i Municije Užice ("Weapons and Munitions Factory in Užice).
During World War II the decentralized resistance-run ammunition works run by Tito's partisans was named Prvi Partizan fabrika ("First Partisan factory"). This name was retained after the war when it was moved back to the FOMU facility in Užice.
According to the global trade data company Panjiva, Prvi partizan was listed as the third biggest foreign ammunition supplier in the United States market for 2016. The Government of Serbia invested 4 million euros for the new hall construction in 2017.
From Wikipedia’s article on Prvi Partizan, shared under CC BY-SA 4.0.3