Chinese interest in Greenland comes after Beijing expressed ambitions to form a "Polar Silk Road" by developing shipping lanes opened up by global warming.
Alrosa's production fell by 17% in the first three months of the year mainly due to the halt of its Mir underground mine and lower-grade ores processed from the Jubilee pipe.
With Russian aluminium producer Rusal imploding in the wake of U.S. sanctions against its oligarch owner Oleg Deripaska, attention is now turning to the status of another Russian industrial powerhouse, Norilsk Nickel.