Invitation The Organizing Committee cordially invites you to participate in The Sixth Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT6) and The Fifth Asia Pacific Congress on Catalysis (APCAT5) to be held as a joint conference from July 18 to 23, 2010 in Sapporo, Japan. Catalysis Society of Japan will organize this meeting as a continuation of TOCAT conferences. The past five TOCAT conferences in Tokyo have earned a good reputation as a new series of international conferences on catalysis that has significantly filled the gap between research and technology in catalysis. The past APCAT events were held in four countries to provide opportunities for researchers from the Asia Pacific region to discuss current developments in catalysis. TOCAT5: July 23 - 28, 2006, Funabori, Tokyo TOCAT1 (1990), TOCAT 2 (1994), TOCAT 3 (1998) and TOCAT 4 (2002) APCAT4: December 6 - 8, 2006, Singapore APCAT1: Korea (1997), APCAT2: Australia (2000) and APCAT3: China (2003).