The mayor of China's Shanghai metropolis, Han Zheng, will arrive in Taipei April 6 for a four-day visit, Taipei Mayor Hau Lung-bin said Tuesday, and announced a 'two-town forum' will be opened here during Han's stay. Hau also revealed that the two cities will sign four cooperation memorandums to boost cultural, travel, science park and environmental protection exchanges. Being the mayor of China's largest city, Han's visit will be the first of its kind in cross-Taiwan Strait relations, and is expected to open a new page in cross-strait city-to-city cooperation, Hau said. He anticipated that Shanghai and Taipei -- both the key gateways in the strait -- will draw the world's full attention this year thanks to the fact that Shanghai will host the World Exposition in May, while Taipei will hold the International Flora Exposition in November. Asked whether the city will avoid putting up Taiwan's national flags during Han's visit, Hau said he has instructed the relevant departments to host Han based on the protocol for the city's foreign guests. 'Everything will be done in a normal way; what should be there will be there,' he said. In response to a reporter's question of whether or not Han will visit Taiwan's top-ranking officials, including the president and premier, Hau replied that no arrangement has been made for such meetings. Asked about possible protests from the pro-independent 'pan-green camp, ' the mayor said Taiwan is a democratic society, which respects different voices so long as they come from people who are rational and peaceful. He expressed hope for Taipei's citizens to welcome 'friends from far away' with passion and kindness. According to Han's public itinerary in Taipei that the city government publicized earlier, Han will arrive at the Taipei Songshan Airport April 6. That day, he will attend the Taipei-Shanghai city forum and sign the cooperation memorandums. At the forum, the two mayors will both deliver a key-note speech on ways to strengthen bilateral cooperation and promote mutual development, and exchange with each other their views and experience in city development and management, according to the city government. During his stay, Han will also meet and talk with local senior high school students, and visit city infrastructure establishments, including the Mass Rapid Transit system, Taipei's subway. Han's entourage include city Secretary-General Jiang Ping, Taiwan Affairs Office Director Li Wenhui and more than 10 leaders of large enterprises in Shanghai. The Shanghai Symphony Orchestra will also be part of Han's delegation to Taipei. 