[August 19, 2013 ChinaCache International Holdings Ltd. Announces Second Quarter 2013 Financial Results BEIJING, Aug. 19, 2013 (GLOBE NEWSWIRE) — 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 announced its unaudited condensed consolidated financial results for the second quarter ended June 30, 2013. Highlights] [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. By :]

[ChinaCache Resumes Share Repurchase Plan BEIJING, June 26, 2013 Under the resumed plan, ChinaCache is authorized, but not obligated, to repurchase up to US$8.5 million worth of its ADSs over the next 12 months. The repurchases may be made from time to time on the open market at prevailing market prices, in negotiated transactions off the market, in block trades] [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.]

[ChinaCache International Holdings Ltd. Announces BEIJING — May 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 announced its unaudited condensed consolidated financial results for the first quarter ended March 31, 2013. Highlights for the First Quarter of 2013 · Net] [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. By :]

[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.]