Chilean businesswoman Iris Fontbona has an estimated net worth of $16 billion as of March 2019. He is also the richest person in Chile and 35th in the list of World Billionaires.

Fontbona has acquired her net worth when she married Andronico Luksic who founded Antofagasta, one of the biggest copper mining companies in the world as well as the founder of Luksic Group. She currently runs Antofagasta in Chile.

Iris Fontbona and his children also hold a majority stake in Quinenco, a consumer packaging and beverage maker. It has interests in Banco de Chile as well as businesses in energy, transportation, and port services. Luksic’s clan also own two chains of Croatian beach resorts, Adriatic Luxury Resorts and Laguna Porec. His three sons to Luksic are also involved in the family business. Jean-Paul serves as the chairman of Antofagasta. Andronico is the head of the financial division. Guillermo is in-charge of the family’s stake in Compania Cervecerias Unidas SA, the largest brewer in Chile, as well as Compania Sudamericana de Vapores, Latin America's largest shipping company.