CONTROVERSIAL American politician Nancy Pelosi arrived in Hong Kong last night after talks with senior Beijing officials, and planned to meet dissident mainland unionist leader Han Dongfang. ''I hope to discuss his current situation and make sure he is in good health,'' Ms Pelosi said. ''I am very concerned about Han Dongfang. He has a great deal of support [in US political circles].'' Mr Han's expulsion from mainland China last weekend was one of the main subjects raised by Ms Pelosi and members of the Congressional Intelligence Committee delegation when they met Chinese leaders. Their concerns over the treatment of Mr Han, who suffers from tuberculosis, received a cool response from the head of the National People's Congress, Qiao Shi. ''There was no specific response on the question of Mr Han, only the observation that China and the US handled such matters differently,'' Ms Pelosi said. She stressed the US Embassy in Beijing would continue to take ''appropriate measures'' on Mr Han's behalf. Mr Han, whose week-long visa will expire on Sunday, celebrated his 30th birthday with friends in Hong Kong last night. Legislator Emily Lau Wai-hing urged the Hong Kong Government to try its best to persuade China to reverse its decision not to allow Mr Han to return home. Mr Han's expulsion was yet another case showing there was much room for improvement in China's human rights record, she said. ''Most Hong Kong people will become Chinese citizens in about three years. Will people like Han Dongfong be treated the same way and kicked out?''