WI Harper Portfolio Companies Debut on ChiNext and Nasdaq

BEIJING, CHINA and SAN FRANCISCO, CA--(Marketwire - Apr 25, 2011) - WI Harper Group, a leading US-China early growth and expansion stage venture capital firm, today announced the successful initial public offerings of Edan Instruments, Inc., one of the leading medical equipment manufacturers in China, and 21Vianet Group, Inc., China's largest provider of carrier-neutral internet data center services. Priced on the same day, April 21, 2011, Edan (300206.SZ) debuted on the ChiNext exchange and 21Vianet (NASDAQ: VNET) was introduced on the Nasdaq Global Market exchange. The Edan and 21Vianet public offerings continue WI Harper's legacy of successful investments, which include the December 2010 IPO of SemiLEDs Corp. (NASDAQ: LEDS), a global leader in manufacturing ultra-high brightness LED chips.

"Edan has blossomed from a domestic medical equipment provider into a global powerhouse with substantial international presence and sales," said Dr. David Wang, Managing Director, WI Harper, and Edan Instruments Board member. "We are pleased to see the results of our value-added support and expect that China's health care market will continue its dramatic growth as both a provider to the domestic market and a rising competitive force on the global stage."

"Since our initial investment, we have watched 21Vianet grow quickly into one of the most promising innovators of energy saving information technology services in China," said Lucas Wang, Partner, WI Harper. "There is a remarkable focus on reducing energy consumption in China, especially within the data center services market, which analysts at IDC report will grow in China to $1.9 billion by 2014. WI Harper is ideally positioned to capitalize on this demand."

"The success that Edan, 21Vianet and SemiLEDs are experiencing is a great achievement and we are very proud of our partnership with these companies. WI Harper's investment model continues to deliver returns to our investors with approximately $2 billion of combined public market value created in the last five months," said WI Harper Chairman, Peter Liu. "With IPOs achieved in each of our three target sectors of information technology, clean technology and healthcare in China, this is a testament to WI Harper's China expertise as well as our strategic presence in both Taiwan and the U.S."

About Edan Instruments
Edan Instruments, Inc. (300206.SZ) is one of the leading medical equipment manufacturers in China. Located in Shenzhen, a major electronic center where talent and productivity converge, Edan manufactures, develops, and markets Fetal Monitors, Fetal Dopplers, Electrocardiographs (ECG), Patient Monitors, Ultrasound and Transcranial Dopplers (TCD). Established in 1995, Edan has 23 offices in China, and a solid distribution network in more than 120 countries all over the world.

About 21Vianet
21Vianet (NASDAQ: VNET), founded in 1999, provides network resources to the top 8 telecommunications carriers and is a frontrunner in delivering data center energy efficiency and environmental protection. 21Vianet is committed to optimizing network deployment and creating better operation and maintenance experiences for their customers.

About WI Harper
Founded in 1993, WI Harper Group is a venture capital firm that invests in early growth and expansion stage companies with significant operations in China and aspirations to become global leaders. We are an active partner with a track record of over 100 investments in the technology, clean technology and health care sectors. The firm manages approximately $750 million in capital from offices in Beijing, Taipei and San Francisco. www.wiharper.com