News Digest: December 27 报摘： 2012年12月27日

The following press releases and media reports about Chinese companies were carried on December 27. To view a full article or story, click on the link next to the headline.
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• Sina (Nasdaq: SINA) Denies Alibaba to Invest in Weibo Rumor (Chinese article)

• NDRC to Probe Authenticity of E-Commerce Promotions During Chinese New Year (Chinese article)

• Jingdong Mall CTO Resigns (English article)

• Renren (NYSE: RENN) Announces Renewal of Share Repurchase Program (PRNewswire)

• 55tuan Says Achieved Profit in December at Millions of Yuan Level (Chinese article)