Shigeru (Sam) Muraki joined Tokyo Gas Co., Ltd. in 1972 after graduating from Applied Chemistry Department of the University of Tokyo. He was appointed chief representative in New York from 1989 to 1994. From 1996 through 2004, he worked at Gas Resources Dept. He was promoted to senior executive officer and CTO in 2004.
In 2007, he moved to Energy Solution Division in charge of marketing in commercial and industrial markets and power business. He was appointed Executive Vice President in 2010 and Vice Chairman in 2014. Since April 2015, he has been Executive Adviser for Tokyo Gas.
He was Program Director of Energy Carriers for SIP (Cross-ministerial Strategic Innovation Promotion Program) from June 2014 to March 2019.
He has been Representative Director of the Clean Fuel Ammonia Association since July 2019.
He was assigned to Regional Vice Chair, Asia Pacific and South Asia, of World Energy Council since May 2016.
He was awarded the Medal of Honor with Blue Ribbon in May 2017.