Maraging steel, flow-forming machines and laser welding equipment.
These are some of the new items that have been added to the UN Security Council's embargoes list concerning North Korea.
Most of these items are associated with the development of nuclear weapons and missiles.
Maraging steel is a type of reinforced steel that is used for the fuselage of planes and reportedly used on North Korean missiles.
Flow-forming machines are key pieces of equipment in the production of nuclear centrifuges.
A list of 14 chemicals that could be used in the production of chemical weapons has also been added to the list.
These additions were to added to UN Security Council resolution that came into force at the beginning of March in response of North Korea's nuclear test and long-range missile launch earlier in the year.
It also emerged on Tuesday that authorities in Sri Lanka stopped two North Koreans carrying 168-thousand U.S. dollars in a bag, while transferring through an airport in the capital, Colombo.
According to South Korea's Yonhap News Agency, they were stopped on March 14th, and they were travelling from Oman to Beijing.
It's the first time North Koreans have been caught moving cash, since the UN sanctions blocked the regime carrying out all financial transactions with other countries.
The men said they were carrying wages for their colleagues who had been working in Oman.
The money was confiscated and the men were fined roughly 700 dollars.
The North Korean government has demanded the money be returned, while the men are still believed to be held at a hotel near the airport.
Kwon Jang-ho, Arirang News.