Seoul recently agreed to reopen its market to most U.S. beef cuts, lifting a five-year ban placed after the outbreak of the first mad cow case in the United States. The decision reached on April 18 is expected to permit U.S. beef shipments to arrive here around in mid May.

"We are very pleased that Korea has taken the decision," Vershbow said, "And this agreement is based on international scientific standards, which I think is the only policy for trading nations that they want to observe, that they want to have healthy economic relations with other nations."The Lee Myung-bak administration, however, faced mounting domestic criticism for rushing to the beef agreement despite lingering concerns over mad cow disease and feared impact on the local cattle industry

Resuming U.S. beef imports has been considered a key condition for Seoul gaining U.S. ratification of the free trade agreement