ENRC was delisted from the London Stock Exchange after the largest investor backed the founders' US$4.5 billion takeover last year.

The agency will begin soliciting comment on whether companies should publicly list the chemicals used to extract fuels out of the ground.

First Quantum subsidiary Minera Panama’s $6.4 billion Cobre Panama copper-gold-silver mine is located next to Petaquilla’s Molejon gold mine, which has triggered lengthy disputes in the past.

"Despite a handful of normal start-up issues, the operations team maintained operating costs within expectations.”

Silver is called the devil's metal, because of its wild price swings. Volatility fell to a decade low in April - historically a trigger for a huge rally.

The two used to be joined at the hip, but now one or the other has lost touch with reality.

AMEC, the international engineering and project management company, has appointed Jeff Reilly as Group President of Strategy and Business Development. He will be a member of the AMEC Group Management Team, reporting to Chief Executive Samir Brikho, and will be based in Houston, Texas, United States.

This infographic, part three in our 2014 Gold Series, covers the rise of Asian demand for the yellow metal.

The head of the world’s second largest mining company, Sam Walsh, said he will soon stop focusing on cost cuts to centre on growth again.