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BEIJING, Nov. 17 (Xinhua) -- China and the United States on Tuesday underlined in a joint statement their commitment to the eventual realization of a world free of nuclear weapons.    They also reiterated their opposition to the proliferation of weapons of mass destruction in the statement issued after talks between Chinese President Hu Jintao and visiting U.S. President Barack Obama.     The two sides will jointly uphold the international nuclear non-proliferation regime, and agreed to enhance non-proliferation cooperation on the basis of mutual respect and equality, the statement said.     They promised to work together for a successful Review Conference of Parties to the Treaty on the Non-Proliferation of Nuclear Weapons in 2010, and committed to pursue ratification of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) as soon as possible.     The joint statement said the two countries stand ready to strengthen communication and cooperation in nuclear safety and security and in combating nuclear terrorism.     China attaches importance to the U.S. initiative to hold a nuclear security summit in April 2010 and will actively participate in the preparations for the summit, according to the joint statement.

SHANGHAI, Nov. 16 (Xinhua) -- Visiting U.S. President Barack Obama said here Monday that Shanghai and Chicago can learn from each other especially on clean energy.     He made the remarks during a dialogue with Chinese students at the Shanghai Science and Technology Museum. It is his first trip to China since taking office in January.     "It's a terrific opportunity for us to learn from each other," he said.     "In the United States we are learning how to develop buildings that use much less energy and that are much more energy-efficient. I noticed in Shanghai many new buildings are growing up. It's important to incorporate these new technologies so that each building is energy-efficient when it comes to lighting, when it comes to heating," he said.     Clean energy issue is going to be a major focus in the 2010 Shanghai World Expo, he said.     Shanghai and Chicago have been sister cities since 1985.

BEIJING, Oct. 24 (Xinhua) -- China has a total number of 2,971 company groups by the end of 2008 and their combined assets rose 19.7 percent from the previous year to more than 40 trillion yuan (5.86 trillion U.S. dollars), the China Industrial Information Issuing Center said Saturday.     Corporate management of these company groups is improving, according to the center.     Affected by the global financial crisis and economic slowdown, profit of these company groups decreased by 22.5 percent in 2008 year on year, the first annual drop since 1997, said the center without giving specific figures.

BEIJING, Dec. 27 (Xinhua) -- China would not yield to pressure for the appreciation of its currency yuan, or renminbi, in any form, Chinese Premier Wen Jiabao said Sunday.     "A stable Chinese currency is conducive to the international community," Wen told Xinhua in an exclusive interview.

BEIJING, Nov. 29 (Xinhua) -- Premier Wen Jiabao said during an inspection tour to East China over the weekend that the country would rely on science and technology advancements to meet its carbon emissions reduction targets.     When visiting the Shanghai Institute of Ceramics under the Chinese Academy of Sciences, Wen encouraged researchers to develop key technologies for electric vehicles and vehicles with high energy efficiency and low emissions.     He said China would adjust its "consumption policies" to push for the development of automobiles with low emissions and high energy efficiency, and "vigorously support" the development of electric cars. Chinese Premier Wen Jiabao (L, front) shakes hands with a scientist as he visits Shanghai Institute of Ceramics of Chinese Academy of Sciences, in Shanghai, east China, Nov. 28, 2009. Wen made an inspection tour in Shanghai and Jiangsu from Nov. 28 to 29. On Thursday, the State Council announced to cut China's carbon dioxide emissions per unit of GDP in 2020 by 40 to 45 percent from the level of 2005.     While visiting Shanghai and the neighboring Jiangsu Province, Wen called for a more balanced and energy-efficient economic development model.     He said China must speed up shifting its economic growth to a new pattern that depends not just on investment and export but also on domestic demand. Chinese Premier Wen Jiabao (R front) receives a school badge for commemoration as he visits Nanjing University of Technology, in Nanjing, capital of east China's Jiangsu Province, Nov. 29, 2009. Wen made an inspection tour in Shanghai and Jiangsu from Nov. 28 to 29.Economic growth should also rely on a balanced development of the primary, secondary and tertiary industries, rather than on manufacturing alone, Wen said.     Scientific and technological advancements, improvement in workers' qualities and innovations in management models should take over consumption of resources as the driving force for growth, he said.     Wen also visited the Commercial Aircraft Corporation of China based in Shanghai and the construction sites of 2010 Shanghai Expo. In Jiangsu, he visited retail, hi-tech companies and talked with university students