CRPS does not publish a stable person identifier. This page is scoped to roles for one company; same-name records at other companies are kept separate.
Metin Altug Karakaya owns 51% of Negrostone, which earned 12,788€ in 2022.
Source: CRPS persons in company and company shares, fetched 15 Jun 2026. Direct registry relationships only. CRPS registry ↗