Zijin Bor Copper, the Serbian unit of China's Zijin Mining Group, set a new monthly record for copper concentrate production in March, it said.

"For the first time since Zijin's arrival, over 5,000 tonnes of concentrate copper were produced in a month, more precisely 5,188 tonnes," the company said.

A total of 2,016 tonnes of copper concentrate were produced at the Veliki Krivelj mine in March, while the Majdanpek and Novo Cerovo mines contributed 1,823 tonnes and 1,003 tonnes, respectively, Zijin Bor Copper said.

In the first quarter of 2021, Zijin Bor Copper produced 5.2 million tonnes of ore and 15,082 tonnes of copper concentrate, the company added.