• 2^nd Taiwan Chelugpu-fault Drilling Project (TCDP) workshop, November 20-21, 2006, Kochi.
• International workshop “Climate-Tectonic Drilling Studies in Southeast Asia” June, 5-7, 2006, Kochi
• 1^st Taiwan Chelugpu-fault Drilling Project (TCDP) workshop, December 20-21, 2005, Kochi.

• 6^th International Conference on Asian Marine Geology, August 29 - September 1, 2008, Kochi.

• 4^th Solid Geochemistry seminar, October 22, 2007, Kochi
• Technological seminar “basis of pipe arrangement & tube bending”, September 27, 2007
• Kochi Core Center seminar, July 31, 2007, Kochi
• Summer Program seminar, July 19, 2007, Kochi
• Lecture “Earthquake and Tsunami in Kochi”, April 26, 2007, Kochi
• XAFS analysis of Marine Sediments, April 24, 2007, Kochi
• 3^rd Solid Geochemistry seminar, May 30, 2006, Kochi