World business and political leaders attended the opening ceremony of the fourth Summer Davos forum Monday, to discuss how to keep the economic momentum and promote sustained growth two years after the financial crisis.

Chinese Premier Wen Jiabao addresses the opening ceremony of the fourth Summer Davos forum, or the Annual Meeting of the New Champions 2010, held at Tianjin Meijiang Convention Center in north China's Tianjin Municipality, Sept. 13, 2010. (Xinhua/Ding Lin)

Chinese Premier Wen Jiabao gave a speech at the forum, also known as the Annual Meeting of the New Champions 2010, held in the Chinese port city of Tianjin.

As one of the foremost global business gatherings in Asia, the meeting, sponsored by the Geneva-based World Economic Forum (WEF), will last till Wednesday, with the theme of "Driving Growth through Sustainability".

Klaus Schwab, founder and executive chairman of the WEF, announced the opening of the event.

The meeting would push forward cooperation and partnership among societies and leaders in an era of post-crisis recovery, with substantial contributions to provide the world with mindset, ideas and solutions, he said.

Although the world economy has been moving up from the recession since the financial crisis in 2008, the market is still unstable and the future uncertain. The meeting tries to sort out a solution to avert a double-dip recession.

The world economy still faces prominent systemic and structural risks as the impact of financial crisis has not been fully eliminated, Wen said in his key-note speech.

"The world economy has yet to enter a benign cycle of steady growth, and systemic and structural risks are still prominent," Wen said.

China has become one of the first countries to achieve an economic rebound from the crisis, as its massive stimulus secured the country's sound momentum of economic development, but it still faces problems, such as unreasonable economic structure and uneven urban-rural and regional development, he said.

To address the problems, "we will take an integrated approach that balances near-term macro control with long-term development and advances reform and opening-up in the broader context of scientific development," he said.