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WASHINGTON, Dec. 29 (Xinhua) --The U.S. Commerce Department said on Tuesday that it has set preliminary antidumping duties (AD)on imports of steel grating from China, a move that might escalate trade disputes between the two countries.     The department said it "preliminarily determined that Chinese producers/exporters have sold steel grating in the United States at 14.36 to 145.18 percent less than normal value."     As a result of this preliminary determination, Commerce will instruct U.S. Customs and Border Protection to collect a cash deposit or bond based on these preliminary rates.     The product covered by this investigation is a downstream steel product typically comprised of bearing and cross bars used for walkways, platforms and flooring.     From 2006 to 2008, imports of steel grating from China increased 538.44 percent by volume and were valued at an estimated90.7 million dollars in 2008, according to the U.S. Commerce Department.     Commerce said that it is currently scheduled to make its final determination in April 2010.     If Commerce makes an affirmative final determination, and the U.S. International Trade Commission makes an affirmative final determination that imports of steel grating from China materially injures, or threaten material injury to, the domestic industry, Commerce will issue an antidumping duty order.     The new case followed U.S. President Barack Obama's recent decision to impose punitive tariffs on all car and light truck tires from China for three years, a move quickly denounced by China as a "serious act of trade protectionism."     The protectionist moves by the Obama administration will ultimately hurt the U.S.-China trade relations, which are becoming more and more important due to the global financial crisis, economists warned.

COPENHAGEN, Dec. 18 (Xinhua) -- Chinese Premier Wen Jiabao met here with U.S. President Barack Obama on Friday to discuss climate change.     Wen said climate change is a global challenge and an important field for cooperation between China and the United States.     The key to this issue is to stick to the principle of "common but differentiated responsibilities," said Wen.     The Chinese government has announced its goal of controlling greenhouse gas emissions, which demonstrates China's sincerity and determination to deal with climate change, and work with the international community on this issue, said the Chinese premier. Chinese Premier Wen Jiabao (L) meets with U.S. President Barack Obama in Copenhagen, Denmark, Dec. 18, 2009    China has voluntarily launched mitigation measures and put the munder the supervision of domestic law and mass media, said Wen.     China is also willing to carry out international dialogue and cooperation on transparency of its mitigation measures, he said.     The Chinese side welcomes the promise of the United States to provide financial support to the least developed countries, said Wen, noting that the key is to take concrete action to help developing countries deal with climate change.     China is willing to strengthen communication and consultation with the U.S. side to enhance mutual trust, and to push for a fair, reasonable and practical deal at the Copenhagen conference, thus delivering hope and confidence to the whole world, said Wen.     Obama told Wen that the principle of "common but differentiated responsibilities" should be followed in the global fight against climate change.     Obama said China's emission reduction target is ambitious and impressive and important for the entire world.     As a developing country, the largest challenge China is facing is to develop its economy and relieve poverty, he said. Therefore, China should not be required to adopt the same measures as the United States or other developed countries.     Obama said he appreciated China's willingness to have transparency on its voluntary emission reduction measures. The United States is ready to work with China for a successful Copenhagen climate change conference and to strengthen long-term cooperation in the fight against climate change.

BEIJING, Nov. 18 (Xinhua) -- Chinese Premier Wen Jiabao said here on Wednesday that the fruitful visit of United States President Barack Obama to China was of far-reaching significance.     "It is my sincere hope that your current visit will lift the comprehensive and cooperative China-U.S. relations to a new level," Wen told Obama at their meeting in the State Guesthouse in Beijing. Chinese Premier Wen Jiabao meets visiting U.S. President Barack Obama in Beijing on Nov. 18, 2009. Chinese Premier Wen Jiabao meets visiting U.S. President Barack Obama in Beijing on Nov. 18, 2009

BEIJING, Nov. 27 (Xinhua) -- Days after the United States announced to cut its carbon dioxide emissions by 17 percent from 2005 levels by 2020, China promised to slice carbon intensity in 2020 by 40 to 45 percent compared with 2005 levels.     The respective policy movements of both China and the U.S., the biggest two emitters in the world, won global attention, if not instant applause. The early signs of the concerted efforts could be sensed after the two countries, the biggest developed and developing economies, released a joint statement on Nov. 17 during U.S. President Barack Obama's first China visit.     The two sides, according to the joint statement, had a "constructive and fruitful dialogue" on the issue of climate change.     It also said that the two sides were determined, in accordance with their respective national conditions, to take important mitigation actions.     The policy announcements from the two countries came just as the international community was worried about a possible stalemate at the United Nations Climate Change Conference in December in Copenhagen, Denmark.     Although not required by the United Nations Framework Convention on Climate Change (UNFCCC) and the Kyoto Protocol for quantitative greenhouse gases (GHGs) emissions cut, China, defined by the United Nations as a developing country, still puts a drastic slash of its GHGs emissions in the coming ten years, even at cost of lowering its own economic development speed.     Economists estimated that China might double its current gross domestic product (GDP) by 2020. A 45-percent reduction of carbon emissions per unit of GDP means China would emit slightly more carbon dioxide than current levels.     At the same time, the Chinese government voluntarily set "the binding goal," which is to be incorporated into China's mid- and long-term national social and economic development plans.     It's much more than a developing nation is expected to offer, out of responsibility of and sincerity to addressing the common challenge faced by the international community.     Held by the UNFCCC accountable for contributing most of the total global carbon dioxide emissions, which were assumed to warm the planet and consequently result in natural disasters, many industrialized countries dodged their responsibilities of cutting emissions to levels that meet requirements of the Kyoto Protocol and the Bali Roadmap.     The United States, in spite of announcing a meaningful emissions cut of 17 percent, still lags far behind what the UNFCCC requires developed countries to behave.     In the Sino-U.S. joint statement, the two sides were committed to reach a legal agreement at the Copenhagen conference, which includes emissions reduction targets of developed countries and appropriate mitigation actions of developing countries on the basis of the principle of common but differentiated responsibilities and respective capabilities.     The U.S. and China also agreed substantial financial assistance to developing countries on technology development, promotion and transfer, which was largely invalid in the past years.     As China takes the lead to exemplify how a developing country, with the world's biggest population, could do to a better future of the world, it is now the developed world's turn to show their sincere care for a greener Earth.