SEOUL, South Korea — South Korea's Foreign Ministry says U.S. beef exports to South Korea will only come from cattle less than 30-months old.

The ministry says in a Saturday statement an age-verification system will be set up in the United States to ensure only U.S. beef from younger cattle will be exported.

It says the agreement was reached earlier this week between South Korean Trade Minister Kim Jong-hoon and his U.S. counterpart Susan Schwab in Washington.

The deal has been made in an effort to halt daily demonstrations in South Korea over the past month that have brought tens of thousands of protesters to the streets and threatened the stability of President Lee Myung-bak's government.