Cemex Chairman and CEO Lorenzo H. Zambrano died suddenly May 12 at age 70 in Madrid, Spain.
Cemex spokesman Francisco Lebrija says he died of heart failure, while in town for a company meeting, according to Bloomberg News. The company has not yet announced his successor.
Zambrano was named CEO in 1985 and has served as chairman since 1995. His grandfather founded Cemex in 1906.
The Cemex website features a page where people have left messages in honor of Zambrano.
A private funeral was scheduled for May 14 in Monterrey, Mexico, Reuters reports.
