The United States has imposed new expanded sanctions on North Korea over its nuclear program, weeks after launching a long-range missile.
North Korea has refused to suspend its nuclear program, and the bill was easily passed by Congress last week.
Attempts by sanctions to cut the money North Korea needs to develop miniaturized nuclear warheads.
The United States and China are negotiating a UN Security Council resolution on new sanctions.
China says some of the measures could cripple North Korea’s economy.
The sanctions freeze the assets of anyone who does business related to North Korea’s nuclear or weapons program or engages in human rights abuses.
The bill also allows $ 50 million to support humanitarian programs and radio broadcasts in North Korea.
North Korea recently launched a long-range missile, which critics say is a test for banned missile technology. State television said North Korea had “successfully put a satellite into orbit.”
The morning after the launch, Barack Obama said: “This is an authoritarian regime. This is provocative. He has repeatedly violated UN resolutions, tested and produced nuclear weapons, and now they are trying to improve their missile launch system.
It came after North Korea’s fourth nuclear test in January. Analysts say Kim Jong Un appears to look powerful ahead of his important Seventh Party Congress in May.
“The bill was the first to target exclusively Korea, which was passed in an unusually fast manner. We expect to provide a platform for the United States to take strong and effective action [against North Korea], ” South Korea’s foreign ministry said in a statement.
South Korea has said it will discuss with the United States the deployment of a missile defense system.