How Did Iris Fontbona Make His Money?

Iris Fontbona’s Profile Summary

Company	Antofagasta PLC
Position	Matriarch
Source of wealth	Fontbona's wealth primarily stems from her family's extensive holdings in the mining sector, particularly through Antofagasta PLC, as well as diversified investments in banking, beverages, and shipping via the conglomerate Quiñenco.
Also known as	As: Iris Fontbona
Age	84
Education	Not publicly disclosed
Citizenship	Chile
Residence	Santiago, Chile
Family	Widowed, three children
Website, Social Media	Antofagasta PLC: www.antofagasta.co.uk Quiñenco: www.quinenco.cl

Biography

Iris Balbina Fontbona González, born in 1942/1943, is a prominent Chilean businesswoman and the widow of Andrónico Luksic Abaroa, a renowned industrialist who built a vast fortune in mining and beverages. Following her husband's passing in 2005, Fontbona inherited significant business interests, notably in Antofagasta PLC, a leading copper mining company listed on the London Stock Exchange.

Under her stewardship, the Luksic family's business empire has flourished, encompassing sectors such as mining, finance, and manufacturing. Through the conglomerate Quiñenco, the family holds substantial stakes in Banco de Chile, one of the nation's foremost financial institutions; CCU, the country's largest brewer; and CSAV, a major shipping company.

Fontbona maintains a low public profile, rarely granting interviews, yet she is known for her philanthropic endeavors. She has made significant contributions to the annual Chilean Telethon, supporting children with physical disabilities. In 2015, she donated a record CL$3.1 billion (approximately US$3.9 million), and in 2016, she surpassed this with a donation of CL$4.4 billion (approximately US$5.5 million), setting new benchmarks for the charity event.

As of January 2025, Fontbona's net worth is estimated at $23.8 billion, positioning her as the wealthiest individual in Chile and among the top 100 richest people globally.

How did Iris Fontbona make money?
Iris Fontbona’s wealth originates from the vast business empire built by her late husband, Andrónico Luksic Abaroa, who was one of Chile’s most successful industrialists. After his passing in 2005, Fontbona and her family inherited the majority of his assets, which included significant stakes in the mining, finance, and beverage industries.

The cornerstone of the family’s fortune is Antofagasta PLC, a copper mining company listed on the London Stock Exchange. Founded by Andrónico Luksic, Antofagasta grew to become one of the world’s largest copper producers. The company owns and operates several mines in Chile, producing millions of tons of copper annually. Under Fontbona's oversight, Antofagasta’s revenues have steadily increased, with the company reporting billions in annual revenue.

In addition to mining, Fontbona holds a substantial stake in Quiñenco, a diversified conglomerate that controls key businesses in Chile. Through Quiñenco, the family owns a large share of Banco de Chile, one of the country’s largest banks, and CCU, Chile’s largest brewer and beverage company. Quiñenco also holds stakes in CSAV, a major shipping company.

Fontbona’s leadership style is characterized by conservative management and a focus on long-term growth. She and her family have maintained the businesses privately owned, ensuring sustained control and stability across their investments. The Fontbona family has also made significant investments in real estate and industrial projects in Chile and abroad.

As of January 2025, Iris Fontbona’s net worth is estimated at $23.8 billion, primarily derived from her holdings in mining and finance sectors, making her one of the richest women in the world.
What is Iris Fontbona net worth?

As of 2026, Iris Fontbona’s net worth is estimated to be $31.7B.

What is Iris Fontbona also known as?

Iris Fontbona is recognized as the matriarch of the Luksic family, overseeing one of Chile's most influential business conglomerates with interests spanning mining, finance, and industrial sectors.

Prominent achievements

Under Fontbona's leadership, the Luksic Group has solidified its position as a dominant force in Chile's economy, with Antofagasta PLC becoming one of the world's largest copper producers and Quiñenco holding significant stakes in key industries, contributing to the nation's economic development.

What are Iris Fontbona’s key insights?

Fontbona emphasizes strategic diversification across industries, maintaining a strong presence in traditional sectors like mining while expanding into finance and manufacturing, ensuring sustained growth and stability for the family's business empire.

Personal life

Iris Fontbona was married to Andrónico Luksic Abaroa until his death in 2005. The couple had three children: Jean-Paul, Andrónico, and Guillermo. Jean-Paul manages Antofagasta, the family's copper mining group. Guillermo Luksic passed away in 2013 due to lung cancer.

Useful insights

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