[ChinaCache International Holdings Ltd. Issues Letter to Shareholders BEIJING, April 29, 2013 — ChinaCache International Holdings Ltd. (“ChinaCache” or the “Company”) (NASDAQ: CCIH), the leading total solutions provider of Internet content and application delivery services in China, today issued a letter to the Company’s shareholders from Mr. Song Wang, Founder, Chairman and Chief Executive Officer of ChinaCache. In the letter,] [ChinaCache International Holdings Ltd. Section A, Building 3, Dian Tong Creative Square No. 7 Jiuxianqiao North Road, Chaoyang District Beijing, 100015 The People’s Republic of China +86 10 6437 3399 Form 20-F x Form 40-F o o o ChinaCache International Holdings Ltd.]