TANG JIAXUAN arrives in Washington tomorrow charged with taking blossoming Sino-US relations to a new level. In his first official visit to the US capital, Mr Tang will meet senior administration officials - including a possible session with President Bill Clinton - and members of Congress. So far, the new Foreign Minister has arranged meetings with Secretary of State Madeleine Albright, National Security Adviser Sandy Berger and Treasury Secretary Robert Rubin. It is during the meeting with Mr Berger at the White House, tentatively scheduled for Tuesday, that Mr Clinton may have time to talk, if his schedule permits. One of the events arranged on Capitol Hill is a breakfast meeting chaired by Senate Finance Committee chairman William Roth. The meeting with Mr Rubin will emphasise Beijing's increasing importance as a cornerstone of stability in the economic crisis in Asia. Top of Mr Tang's agenda is expected to be Taiwan, notably Beijing's wish that the White House follow through on its promises to respect the mainland's position by cutting arms sales to Taipei. He is also likely to keep pressing US officials to agree to drop all remaining 1989 sanctions against China - a plan that was scrapped earlier this year when controversy flared on Capitol Hill about US satellite technology transfers to Beijing. For its own part, Washington is anxious to make sure that some of the understandings reached at the summits on exchanges, human rights, the environment and weapons proliferation are followed through on. A White House spokesman said that on the agenda would be 'global and regional issues, including South Asia and Korea, and bilateral issues including non-proliferation, human rights and trade'.