NEW YORK -- Dish Network ( DISH) offered to acquire Clearwire ( CLWR) for $3.30 a share, or $5.15 billion, topping a bid from Sprint ( S) for the wireless service provider. Clearwire said Tuesday it would discuss the unsolicited offer with Dish. But Sprint, which owns 51% of Clearwire, said it would have to sign off on Dish's offer and that it has no plans to do that. Sprint reached a deal in December to buy the 49% of Clearwire that it didn't own for $2.90 a share. It later raised the offer to $2.97 a share. Aluminum giant Alcoa ( AA) posted fourth-quarter revenue on Tuesday that topped analysts' expectations and it said it expected to be in good position for 2013 on global demand growth in the metal. Fourth-quarter earnings at Alcoa were 6 cents a share on revenue of $5.9 billion. Analysts were expecting profit of 6 cents a share on revenue of $5.6 billion. "We overcame volatile metal prices and global economic instability to deliver on our targets for the fourth year in a row. We enter 2013 in a strong position to maximize profitable growth," said Klaus Kleinfeld, chief executive officer of Alcoa, in a statement. The company said it expected demand growth of 7%, which would be up from 6% in 2012. Alcoa Beats Revenue, Optimistic on 2013 DemandApple ( AAPL) is developing a low-cost iPhone for emerging markets for 2013, according to reports. It also was reported that Apple CEO Tim Cook made his second visit to China in less than a year and met with the country's ministry of industry and information technology. Apps at CES: Microsoft's Ballmer Really Doesn't Have a Clue Wine company Constellation Brands ( STZ) is expected by analysts Wednesday to report third-quarter earnings of 55 cents a share on revenue of $751.8 million. Seagate Technology ( STX), the disk drive maker, on Tuesday raised revenue guidance for the fiscal second quarter ended Dec. 28. Seagate said it expects quarterly revenue of at least $3.6 billion, higher than its previous forecast of about $3.5 billion. Seagate Shares Rebound on Better-Than-Expected SalesMGM Resorts ( MGM) said its China arm received official approval Wednesday for its new $2.5 billion casino-resort in Macau. -- Written by Joseph Woelfel >To contact the writer of this article, click here: Joseph Woelfel >To submit a news tip, send an email to: email@example.com.