The 2011 China Joy, which is the country's largest digital entertainment expo, opened today in Shanghai, drawing industry leaders and game players worldwide.

As game business companies in Chengdu, capital of Southwest China's Sichuan province, show keen interest in the four-day event, the Chengdu High-tech Zone has organized 15 game business companies to participate in it.

The companies are displaying nearly 20 online games they have created in the expo. Some other companies from Chengdu which have not taken any product to the expo are also visiting it.

For instance, the game center under Sichuan Telecom has sent its staff members to the expo to find business opportunities and learn the latest industry trends.