In January 2004, Dr. Abdul Qadeer Khan, a Pakistani nuclear scientist, admitted selling restricted nuclear weapons technology to Libya, Iran, and North Korea. According to his testimony and reports from intelligence agencies, Khan sold designs for centrifuges used to enrich uranium and Chinese designs for a nuclear warhead, and sold centrifuges themselves to these three countries. Khan had previously been said to have taken gas centrifuge designs from a uranium enrichment company in the Netherlands (URENCO) which he used to help Pakistan's own nuclear weapons program get started. On February 5, 2004, the president of Pakistan, General Pervez Musharraf, said that he had pardoned Khan. Pakistan's government says that they had no part in the espionage, but refuses to turn Khan over for questioning by the International Atomic Energy Agency.