Allen & Overy and two South African firms are advising on a Chinese company’s $1.2 billion acquisition of South African copper and cobalt miner Metorex Ltd.

Jinchuan Group Ltd., a metallurgical and chemical engineering company based in Jinchang, Gansu province, will pay $1.2 billion cash to take over Metorex, a mid-sized mineral mining company whose main asset is its 85-percent stake in the Chibuluma copper mine in Zambia.