The company was established in 1997 through the merger of eastern Kazakhstan’s three main nonferrous metals companies—Leninogorsk (now Ridder) Polymetallic complex, Ust-Kamenogorsk Lead and Zinc complex, and Zyryanovsk Lead Complex.
Oskemen Airport (IATA airport identifier: UKK) in Oskemen (Ust-Kamenogorsk), Kazakhstan