HONG KONG — After two years on the fifth floor of a Hong Kong office building, the only museum dedicated to the 1989 Tiananmen protest movement is expected to close this year. The organizers of the June 4th Museum say they are scrambling to find a new location.

The 800-square-foot museum in the packed Tsim Sha Tsui shopping and tourism district includes photographs, descriptions of some of the protesters killed in the military crackdown and a replica of the Goddess of Democracy, a statue erected by students during their occupation of Tiananmen Square in Beijing.

The museum has been opposed by the building’s owners corporation, and the organizers faced a lawsuit that they have decided they do not want to continue spending money to fight, said Albert Ho, chairman of the Hong Kong Alliance in Support of Patriotic Democratic Movements in China, which established the museum.

Mr. Ho said he believed politics was behind the lawsuit over the museum. “It’s not the owners’ corporation that’s paying to sue us. It’s just one person,” he said in an interview on Thursday. He was referring to Stanly Chau Kwok-chiu, the chairman of the corporation, who owns a clothing factory in mainland China.