Copper stockpiles rose 4.1% to 310,760 tonnes this week, while zinc inventories were up 11.8%.

Bloomberg Commodity Index slid for a fifth session Friday, in the worst performance since September 2011.

Spot gold fell as much as 4.5%, the most intraday since June 2013, according to Bloomberg generic pricing.

The start of stockpiling "can effectively alleviate the increase in inventory" at metal producers.

Company announced ordinary dividend of $6.2 billion in 2019 and total cash returns of $7.2 billion.

Russian giant reported 2019 net profit up 95% and expects uncertain times for nickel and copper markets.