After the war, both plants continued to focus on developing and increasing sales. Despite the changes in the production range, the technology of production of explosives and blasting agents was constantly modernized. In the 90s of the last century, both companies were transformed into sole-shareholder state-owned companies: ZTS ERG Bieruń S.A. in Bieruń and NITRON S.A. in Krupski Młyn.
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