The Chinese oil giant CNOOC completed its $15.1 billion purchase of Canada's Nexen energy group on Monday, in what analysts have said is China's largest foreign investment.

Sudan and Saudi Arabia are targeting a 2014 start for deep-water mining of a Red Sea basin believed rich in gold and copper, Sudan's mines minister said Tuesday as Khartoum seeks to replace lost oil revenues.

The oldest company in North America, Canadian department store operator Hudson's Bay Company, announced Monday it has gone public.

Research In Motion shares jumped more than 15 percent on Thursday after a burst of positive reviews this week by analysts who had been among the beleaguered BlackBerry maker's harshest critics.

London Stock Exchange Group on Friday posted flat first-half net profits, despite rising sales, as it grappled with "challenging" market conditions.

London Stock Exchange Group on Wednesday said its income grew 10 percent in the first quarter compared with a year earlier to £209.5 million ($328 million, 267 million euros) on recent acquisitions.

Allen Chan of China's Sino-Forest Corp, which is under investigation by Canadian regulators and police over allegations of dodgy accounting, on Tuesday left the company he founded.

The London Stock Exchange Group forecast on Friday "strong" results for its 2011/2012 financial year, despite choppy financial markets.

(Reuters) - Research In Motion will be forced to slash the fees it charges carriers for BlackBerry service this year, an analyst said on Monday as another U.S. government customer edged away from the service, cutting into a pillar of the struggling smartphone company's business model.

(Reuters) - Blackberry maker Research in Motion Ltd (RIM) is likely to preannounce poor February quarter results and forecast a "very weak" May quarter on lower sales of its phones, according to Jefferies & Co analysts.

(Reuters) - Canada's DiagnoCure Inc said it received U.S. regulatory approval for a prostate cancer test that may help avoid unnecessary biopsies, sending its shares to their highest in about 18 months.

TORONTO (Reuters) - Canadian dairy products producer Saputo Inc is warning customers not to consume one of its milk products because it could be tainted with a cleaning solution.

London Stock Exchange Group on Friday posted rising revenues for the third quarter of the company's financial year, despite volatile financial markets.

Research In Motion's new chief executive Thorsten Heins said on Monday he plans to focus more on the consumer market but that a "drastic change" is not necessary at the struggling BlackBerry maker.

Mike Lazaridis and Jim Balsillie, the co-chief executives of Research In Motion, have resigned following months of investor pressure for a change at the helm of the struggling BlackBerry maker.

Mike Lazaridis and Jim Balsillie, the co-chief executives of Research In Motion, have resigned following months of investor pressure for a change at the helm of the struggling BlackBerry maker.

Mike Lazaridis and Jim Balsillie, the co-chief executives of Research In Motion, have resigned following months of investor pressure for a change at the helm of the struggling BlackBerry maker.

(Reuters) - Research In Motion's co-chief executives Mike Lazaridis and Jim Balsillie have bowed to investor pressure and stepped down, handing the job to an insider with four years at the struggling BlackBerry maker.

WATERLOO, Ontario (Reuters) - Research In Motion's Mike Lazaridis and Jim Balsillie have bowed to investor pressure and resigned as co-CEOs and co-chairmen, handing the top job to an insider with four years at the struggling BlackBerry maker.

WATERLOO, Ontario (Reuters) - Research In Motion's Mike Lazaridis and Jim Balsillie have bowed to investor pressure and resigned as co-CEOs, handing the top job to an insider with four years at the struggling BlackBerry maker.