Slim, 70, said that he would consider opportunities in the power sector, Reuters reported.
Slim's business empire includes retailers, construction companies and Latin American telecommunication giants Telmex and America Movil. He also owns a stake in New York Times Co.
Slim, who is worth an estimated $53.5 billion, urged delegates at a conference in Australia to focus on enjoying life rather than making money.
"It is not (about) the money/material issue but your family, your friends, your personal life; time to appreciate the colors, the sun sets, the flowers, the weather, the places, the people," Slim said, after being asked for tips on how to get rich.