China may be routinely underestimating its steel sector output, with official 2013 figures coming in 40 million tons below a key industry estimate.
Asian stocks pulled back sharply on Monday, as investors fretted about the relentless slide in energy prices and declining manufacturing sentiment in Japan. Also in focus was a hostage incident in Sydney.
European shares closed sharply higher on Friday after the U.S. monthly jobs report showed the economy adding 321,000 jobs in November.
Asian equity markets were mixed on Friday following weak economic data and as oil prices extended their slide.
Asian equities rose on Wednesday following better-than-expected U.S. growth data but Japan underperformed on the back of a stronger currency.
Scott Philips, Advisor at The Motley Fool, says a merger between Rio Tinto and Glencore makes sense but warns that the deal will be riskier for Glencore.
Take a look at some of Friday's midday movers:
Global equity markets jumped on Friday morning after the Chinese central bank unexpectedly cut interest rates to boost its flagging economic growth.
Sam Walsh, CEO of Rio Tinto, discusses Chinese President Xi Jinping's announcement of an infrastructure stimulus package and explains what it means for his business.
European stocks closed lower on Friday after the U.S. economy produced fewer than expected jobs in October and tensions in Ukraine flared.
Asian equities were mixed on Tuesday ahead of a Federal Reserve meeting with China's benchmark index outperforming the region following strong data.
Asia equities were mostly higher on Wednesday following a strong U.S. lead and reports of bond purchases by the European Central Bank.
Mounting anxiety over global growth and the spread of Ebola dragged Asian bourses lower on Thursday.
European shares closed sharply on Wednesday as investors shunned risky assets on fears of crumbling global growth and weak economic data.
John Meyer, analyst at SP Angel, says Glencore will come back with another merger bid for Rio Tinto.
Most Asian bourses traded higher on late Wednesday, as benign Chinese inflation data fueled hopes of additional easing while a weaker currency provided support for Japanese shares.
Asian shares traded mixed on Tuesday as fears of global economic weakness affected investor sentiment.
Asian shares fell on Monday, adding to last week's tumble, as strong Chinese data failed to soothe worries about sluggish global growth.
Asian shares were mostly lower on Wednesday following a global rout but Shanghai bucked the trend after a week-long holiday.
Paul Gait, senior metals and mining research analyst at Sanford Bernstein, says there was a "compelling" strategic logic behind Glencore's merger bid for Rio Tinto.