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• INSIGHT-Threat of break-up looms over Mexican telecoms tycoon Slim Monday, 10 Jun 2013 | 7:00 AM ET

  MEXICO CITY, June 10- As Mexico gets ready to unleash a battery of regulations to curb the power of telecoms mogul Carlos Slim, the government is sending clear signals that it will not shy away from breaking up his business if necessary.

• Bill Gates leads $35 million investment in research network Tuesday, 4 Jun 2013 | 11:59 AM ET

  SAN FRANCISCO, June 4- Microsoft co-founder Bill Gates is leading a $35 million investment in ResearchGate, a Berlin- based network for scientists that ties into his interest in fighting disease.

• UPDATE 1-OCI parent cuts offer price in Egypt delisting plan Tuesday, 14 May 2013 | 6:03 AM ET

  *OCI NV to press ahead with plan held up by Egypt govt. OCI NV said on Tuesday it would offer holders of OCI's Egypt- listed shares the option of swapping them for OCI NV shares or a cash alternative of 255 Egyptian pounds per share.

• EXCLUSIVE-Elon Musk quits Zuckerberg's immigration advocacy group Friday, 10 May 2013 | 6:34 PM ET

  *Advertising tactics turn some groups against Facebook. *Musk and David Sacks removed from donor list on website.

• CNBC Transcript: Warren Buffett and Bill Gates Wednesday, 8 May 2013 | 12:21 PM ET

  

  This is an unofficial transcript of Warren Buffett and Bill Gates appearing live on CNBC's Squawk Box on Monday, May 6, 2013 from 6 am ET to 9 am ET.

• 'Microsoft Needs to Get Into the Game': Pro  Tuesday, 7 May 2013 | 11:09 AM ET

  

  William George, Harvard Business School professor, explains why now is the time to put a succession plan in place for CEO Steve Ballmer.

• Gates and Buffett: Online Purchases Should Be Taxed Monday, 6 May 2013 | 7:05 PM ET

  

  Warren Buffett and Bill Gates said it's only fair that online retailers collect state sales taxes, just as brick-and-mortar stores do.

• Trading Microsoft's 52-Week High  Monday, 6 May 2013 | 11:04 AM ET

  

  CNBC's Becky Quick reports Bill Gates still thinks China piracy is a problem. And, Brent Thill, UBS analyst, has the play on Microsoft and the tech sector.

• Buffett, Gates: Capping Deductions Could Hamper Giving Monday, 6 May 2013 | 10:24 AM ET

  

  Billionaires Bill Gates and Warren Buffett said limits on charitable deductions could hurt giving—but only among the lesser rich.

• Cramer: Microsoft Has a Lot of 'Weapons'  Monday, 6 May 2013 | 9:07 AM ET

  

  CNBC's Jim Cramer explains why he would like to see Microsoft spin out the Xbox and buy Netflix.

• Buffett & Gates Talk Future of Berkshire Hathaway  Monday, 6 May 2013 | 8:55 AM ET

  

  Warren Buffett, Berkshire Hathaway, chairman & CEO, shares his thoughts on changing investment strategies over time. Meanwhile, Bill Gates, Microsoft chairman, discusses Berkshire Hathaway's succession plan.

• Buffett & Gates on Immigration Reform & Internet Tax Fairness  Monday, 6 May 2013 | 8:39 AM ET

  

  Bill Gates, Microsoft chairman; and Warren Buffett, Berkshire Hathaway, chairman & CEO, discuss the need to implement changes in the nation's immigration law. Also, Gates and Buffett weigh in on the debate over the "fairness" of online sales tax.

• Buffett & Gates on Charitable Giving & Chronic Disease Challenges  Monday, 6 May 2013 | 8:31 AM ET

  

  Bill Gates, Microsoft chairman; and Warren Buffett, Berkshire Hathaway, chairman & CEO, discuss the importance of measuring innovation and intervention. Also, both business leaders take a look at increasing the awareness of philanthropy and the U.S. government's role in providing financial aid to poorer countries.

• Bill Gates & Warren Buffett on Interest Rates, HFT, & Corporate Boards  Monday, 6 May 2013 | 8:13 AM ET

  

  Bill Gates, Microsoft chairman; and Warren Buffett, Berkshire Hathaway chairman & CEO, discuss the impact of interest rates on investment strategies, and global currencies. And, both men weigh in on why high frequency trading is really just a form of legalized "front running." Also, Gates explains why the software business is an "amazing" business to be in.

• @WarrenBuffett Joins Twitter—He's 'in the House' Thursday, 2 May 2013 | 1:44 PM ET

  

  Warren Buffett, famously slow to adopt new technology, has sent his first tweet.

• PREVIEW-Berkshire size, Buffett age cloud annual gathering Tuesday, 30 Apr 2013 | 12:02 AM ET

  *Berkshire Hathaway annual meeting set for May 4. April 30- Warren Buffett may be on safari for major acquisitions, which he likes to call elephants, but shareholders may wonder if his Berkshire Hathaway Inc has become the biggest elephant in the room.

• Dream Team of Philanthropists  Monday, 29 Apr 2013 | 4:50 PM ET

  

  Carlos Slim, joined by five other billionaires, is giving $100 million to the Bill Gates effort to eradicate polio, reports CNBC's Robert Frank.

• FACTBOX-Key Microsoft executive departures in recent years Thursday, 18 Apr 2013 | 5:04 PM ET

  April 18- Microsoft Corp Chief Financial Officer Peter Klein will leave at the end of the current fiscal year, the company said on Thursday, adding to a lengthy list of top executives who have left the company in recent years. The software guru tapped by Bill Gates to take over his role as Microsoft's big-picture thinker left to start his own project in 2010..

• Microsoft's Ballmer Feeling Some Heat  Friday, 12 Apr 2013 | 3:23 PM ET

  

  Overall PC sales are down nearly 14 percent year over year, and Microsoft's software strategy is struggling. CNBC's Jon Fortt breaks down the latest in Microsoft.

• Chinese firm earmarks $200 million to build EcoMotors engine Tuesday, 9 Apr 2013 | 9:19 AM ET

  DETROIT, April 9- One of China's largest auto parts makers said it will construct a $200- million factory to build a radical new engine developed by a suburban Detroit startup. The plant, about 150 miles west of Shanghai in Anhui province, will have an annual capacity of 150,000 and will also supply engines to EcoMotors for sale to its own customers.