50 Kopiiok with mintmark, magnetic

Ukraine's coin specifications were revised multiple times following independence, and the shift to brass-plated steel for the 50 kopiiok reflected the same cost-driven logic that pushed most post-Soviet states away from solid alloys after the 2008–2009 economic downturn. The magnetic core made the transition straightforward for vending infrastructure already calibrated to steel-based coinage elsewhere in the region.

The KM#3.3c designation marks this as the third compositional variant of a design that has otherwise remained essentially unchanged since the mid-1990s — an unusual degree of continuity for a denomination that survived both the 2014–2015 hryvnia collapse and the pressures that followed.