The UN has imposed sanctions on three North Korean state-owned companies in response to Pyongyang's failed rocket launch last month.
The decision to freeze the assets of the firms and ban them from global trade was approved by the UN Security Council's sanctions committee.
The US and EU had wanted to blacklist some 40 North Korean firms but China blocked the move.
Pyongyang said at the time it was putting a satellite into orbit but critics said the launch was a disguised test of missile technology banned under UN resolutions.
The rocket launch failed, with the device crashing into the sea shortly after take off.
Before yesterday's decision, the North Korean sanctions lists included eight companies and five individuals.
Pyongyang has not publicly commented on the new sanctions.