The "Pronit" Plastics Plant (ZTS Pronit) in Pionki was a former chemical manufacturing facility whose history dates back to 1922, when the State Gunpowder and Explosives Factory was established. Its location in the Kozienice Forest favored the secrecy of producing explosives for the Polish Army. During the interwar period, the factory expanded, introducing new production lines, including research laboratories. During World War II, the plant was taken over by the Germans, who produced gunpowder for their military. After the war, production resumed with a new range of chemical products, including nitrocellulose, adhesives, and explosives.
In the 1950s and 1960s, "Pronit" experienced dynamic growth, launching modern products such as artificial leather and a wide range of plastics, which enhanced the plant's significance in the chemical industry. In 1972, the plant acquired a license from the DuPont conglomerate to produce artificial leather, further strengthening its position. In 1982, it gained the status of a defense industry enterprise, which involved the implementation of central investments and economic plans. In the 1990s, "Pronit" underwent further transformations, resulting in the spin-off of numerous subsidiary companies, and part of its assets were transferred to the city of Pionki, impacting the local urban infrastructure. The plant faced financial difficulties, leading to its bankruptcy in 2000.
Interestingly, in addition to its chemical operations, the plant also ran a vinyl record pressing facility, collaborating with many popular music labels, making it a significant landmark in Poland's musical culture of the 1960s and 1970s. "Pronit" was awarded multiple honors, including the Order of the Banner of Work, First Class. The plant also made substantial contributions to the local community, and its history reflects the changes in Poland's industry and economy throughout the 20th century. Today, only a part of the former plant's legacy remains through the spun-off companies that continue the industrial tradition in the region.