 North Korean government officials and other sources state that the company engages in legitimate business transactions, purchasing cigarettes, food, liquor, televisions, and luxury goods for shipment to Pyongyang, but police long had suspicions about Zokwang's activities.One of its officers, An Gun-ho, was identified as a senior counterintelligence officer of North Korea's Ministry of Political Security.North Korea was also alleged to have used Macau as a base for planning the 1983 Rangoon bombing, an assassination attempt on South Korean President Chun Doo-hwan, in which 21 people were killed, but the vice-president of Zokwang Trading, Kim Chol Jun, denied allegations of espionage.