Accidental disclosure by IRS exposes $1bn tax fight with Bristol Myers Squibb

Disappointing results for car maker as it completes first full year as listed company

Shares rise after earnings beat analysts’ estimates

State-owned oil company has begun talks to buy stake in local petrochemical firm

Tech giant received boost from customers signing up for more internet-based storage, processing and Office productivity software

The deal gives French carmaker’s commercial vehicles a foothold in world’s largest auto market

Activist investor Dan Loeb wants Swiss food group to address ‘staid culture’

Weaker global financial markets, tumbling commodity prices and rising loan impairments hit emerging markets focused bank

Homebase to rebrand as Bunnings in Ireland and the UK as it goes head-to-head with B&Q

Company announces sale of South Korean arm to MBK Partners-led group for $6.1bn

Talk of extension to bailout programme erases decline in European stocks

Retailer has made solid start to year against strong comparatives, says Kingfisher chief

Producer failed to sell 30 per cent of the diamonds it offered at March sale

Irish accounting scandal has cost company £300m so far