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"But they have to take a step back ... and look at the facts."

"But we have also developed a more mature system by partnering with telecom carriers, banks and other relevant parties to crack down on such crime. Cross-party collaboration is one of the keys to prevent such cases from happening," Luo said.

"But special (high-end) steel accounts for about 10 percent of China's total output, compared to around 20 percent in developed economies," said Yang Zhiyong, director of the Special Steel Institute under the Central Iron and Steel Research Institute Group.

"China has certainly benefited enormously from access to an open American economy," he said. "Those common interests haven't been changed."

"China is probably the only country able to host such an event," said Roger Kornberg, a biochemist from the United States who won the Nobel Prize in chemistry in 2006 and addressed the forum via video link. "The challenges of bringing together 137 laureates of various prizes as well as a very large number of other participants and young people is a logistical nightmare and really almost impossible to accomplish. And yet, the leaders of this effort in China have succeeded and done a brilliant job."