The association held an exhibition of Senchado culture and calligraphy left by departed Obaku monks in 1967, participated in the Japan World Exposition in 1970, and held a tea ceremony in Hawaii for five years consecutively from 1973 to 1977.
昭和42年煎茶道文化黄檗遺墨展開催、昭和45年日本万国博覧会に参加、昭和48年-昭和52年、5年連続ハワイ茶会開催。