Jan 11, 2006. /Lesprom Network/. China has avoided a U.S. challenge at the World Trade Organization by repealing duties of up to 65% on imports of a paper product used to make corrugated boxes, U.S. trade officials said on Tuesday. "China responded to U.S. concerns by eliminating their antidumping order on kraft linerboard," U.S. trade representative Rob Portman said in a statement. "As we made clear to the Chinese government last week, the United States was on the verge of filing a WTO case if this issue was not resolved in a satisfactory manner," he said. U.S. exports of kraft linerboard to China topped $132 million in 2004, making it the second largest market for U.S. producers. Under pressure from its domestic industry, China issued a final determination in September that U.S. producers were dumping kraft linerboard in the Chinese market at margins ranging from 12.9% to 65.2%. The U.S. trade representative's office said various aspects of China's antidumping investigation and determination in the case "appeared to have breached" WTO rules. "The United States and our producers strongly disagreed with China's decision to impose antidumping duties on U.S. kraft linerboard, including with respect to China's determination of injury and the way in which China administered the investigation," USTR said. China also found that Thailand, South Korea and Taiwan were dumping kraft linerboard in its market.