Michael Bambang Hartono Owner of BCA, Founder of Polytron dead at age 86
an Indonesian banker, electronics and cigarettes industry executive, and bridge player who founded Polytron and co-owned Djarum since 1963, died on March 19, 2026. He was 86. Hartono was an Indonesian billionaire heir and businessman who, with his brother Robert… · 19 March 2026 · March 2026