UPDATE 2-U.S. challenges China's tax exemptions for aircraft at WTO
* U.S. says exemptions discriminate against imported planes
* First step in a process that could lead to trade sanctions
* China says promotes aviation manufacturing development in line with WTO rules (Adds China comment)
WASHINGTON, Dec 8 (Reuters) - The United States on Tuesday launched a challenge to Chinese tax exemptions for locally produced aircraft, saying they discriminated against imported planes.
The request for consultations with China at the World Trade Organization over a value-added tax of 17 percent on small to medium-sized planes is the first step in a process that could lead to trade sanctions.
The U.S. Trade Representative said the tax was generally imposed on planes under 25 metric tonnes coming from overseas, while locally made planes such as state planemaker Commercial Aircraft Corp of China's (COMAC) ARJ21 jet were exempt.
"China's discriminatory, unfair tax policy is harmful to American workers and American businesses of all sizes in the critical aviation industry, from parts suppliers to manufacturers of small and medium-sized aircraft," U.S. Trade Representative Michael Froman said in a statement.
USTR investigators uncovered documentation about the tax break dating back to 2000 and said China had breached WTO transparency commitments by failing to publish the regulations for review by trading partners.
China is keen to develop a successful commercial aircraft to rival those of Boeing and Airbus. The ARJ21, China's first locally built regional jet, is designed to compete against Brazil's Embraer SA and Canada's Bombardier Inc. Continuación...