Iris Fontbona
Iris Balbina Fontbona González (born October 2, 1944) is a Chilean mining magnate, media proprietor, and billionaire businesswoman who became the wealthiest person in Chile and one of the richest women in the world following the death of her husband, Andrónico Luksic Abaroa, in 2005. As the widow of Chile's most successful businessman, she inherited control of the Luksic Group, a conglomerate with dominant positions in copper mining, banking, beverages, and media.
The Fontbona family controls approximately 70% of Antofagasta PLC, one of the world's largest copper producers listed on the London Stock Exchange, as well as 83% of Quiñenco, a holding company that controls Banco de Chile, the brewer CCU, and container shipping company CSAV. As of November 2025, Forbes estimates her net worth at US$36.4 billion, making her Chile's richest person, the third wealthiest in Latin America, and among the ten wealthiest women in the world.
Despite her immense wealth, Fontbona maintains an intensely private life, rarely granting interviews and preferring to manage the family empire from behind the scenes. She gains public attention primarily during the annual Chilean Telethon, where she has become famous for record-breaking charitable donations supporting children with disabilities.
Early life
Iris Balbina Fontbona González was born on October 2, 1944, in Chile. She came from a modest background compared to the wealthy industrialist family she would later join through marriage.
She attended a Catholic high school, receiving a traditional Catholic education that would influence her values throughout her life. She remains a devout Roman Catholic to this day.
Little is publicly known about her childhood or family of origin, as Fontbona has consistently declined to discuss her early life in the rare interviews she has granted over the decades.
Meeting Andrónico Luksic
When Iris Fontbona was seventeen years old, she met Andrónico Luksic Abaroa, a rising businessman who was fifteen years her senior. Luksic, at that time in his early thirties, was already building what would become one of Latin America's largest business empires.
Andrónico Luksic came from a remarkable background of his own. Born in Antofagasta in 1926 to a Croatian immigrant father and a Bolivian mother who was the grandchild of a Bolivian War of the Pacific hero, Luksic had started his career managing a Ford dealership called Soinorte for his uncle. By the time he met the teenage Iris, he had already begun acquiring mining concessions in the Atacama Desert.
The couple married in 1961, when Iris was just eighteen or twenty years old (sources vary). Luksic was a widower—his first wife, Ena del Carmen Craig Monett, had died in 1959, leaving him with two young sons: Andrónico Jr. (born 1954) and Guillermo (born 1956). The young Iris thus became stepmother to children only a few years younger than herself.
Marriage and family
Iris and Andrónico Luksic had three children together:
- Paola Luksic Fontbona (born 1962)
- Jean-Paul Luksic Fontbona (born May 31, 1964) – Currently chairman of Antofagasta PLC
- María Gabriela Luksic Fontbona (born 1965)
Fontbona also raised her husband's two sons from his first marriage as her own. Andrónico Luksic Craig, the eldest, was seven years old when his father remarried. He later publicly expressed his deep affection for his stepmother, stating: "I have two mothers. One who died in 1959, when I was four-years-old, and another who took care of me since I was seven, who has been my mother to this day, whom I love, respect and adore above all things."
This blended family of seven children would eventually work together to manage and expand the Luksic empire after their father's death.
Death of Guillermo Luksic
Tragedy struck the family in 2013 when Guillermo Luksic, her stepson who led the family's industrial holdings through Quiñenco, died of lung cancer. His death was a significant loss both personally and professionally, as Guillermo had been an integral part of the family business structure.
Building the Luksic empire
During their 44-year marriage, Iris Fontbona stood alongside her husband as he built one of Latin America's most powerful business empires. While Andrónico was the public face of the Luksic Group, observers noted that Iris played an important role as a trusted confidante and sounding board for major business decisions.
Andrónico Luksic's business acumen transformed his initial stake in a Ford dealership into a diversified conglomerate spanning multiple sectors:
Mining: The acquisition and development of copper mining assets, particularly in Chile's Atacama Desert, became the foundation of the family's wealth. The establishment of Antofagasta PLC, listed on the London Stock Exchange, gave the family access to international capital markets.
Banking: The family acquired controlling stakes in Banco de Chile, one of the country's largest financial institutions.
Beverages: Through Compañía de las Cervecerías Unidas (CCU), the Luksic Group became a dominant force in Chile's beer and soft drink markets.
Shipping: The acquisition of CSAV gave the family a major presence in container shipping and logistics.
By the time of Andrónico's death, the Luksic Group had become one of Chile's three largest economic groups, with interests spanning mining, banking, food industry, transportation, communications, wine, forestry, and agriculture.
Inheritance and leadership (2005–present)
Andrónico Luksic Abaroa died of cancer on August 18, 2005, at the age of 78. His death triggered one of the largest wealth transfers in Latin American history.
The family structure that emerged after his death reflected careful succession planning:
- Iris Fontbona became the family matriarch and ultimate controller of the empire
- Jean-Paul Luksic Fontbona (her biological son) became chairman of Antofagasta PLC, overseeing the mining operations
- Andrónico Luksic Craig (her stepson) oversees the family's financial holdings
- Guillermo Luksic Craig (her stepson) led the industrial holdings through Quiñenco until his death in 2013
One of Fontbona's first major actions following her husband's death was to acquire a 70% stake in Canal 13, one of Chile's major television stations, expanding the family's media holdings.
The family has maintained remarkably unified ownership of the companies since Luksic's death, avoiding the internecine warfare that has torn apart other Latin American family empires. This unity has allowed them to continue expanding and diversifying the business.
Business holdings
Antofagasta PLC
The crown jewel of the Luksic empire is Antofagasta PLC, one of the world's largest copper producers. The family controls approximately 70% of the company, which is headquartered in Santiago but listed on the London Stock Exchange.
Antofagasta's major assets include four copper mines in Chile:
- Los Pelambres
- Centinela
- Antucoya
- Zaldívar (50% stake)
Jean-Paul Luksic serves as chairman of the company, overseeing operations that produce hundreds of thousands of tons of copper annually.
Quiñenco
The family owns approximately 83% of Quiñenco, a publicly traded holding company that serves as the vehicle for the family's non-mining investments. Major holdings include:
- Banco de Chile – One of Chile's largest banks
- CCU (Compañía de las Cervecerías Unidas) – A major beer and soft drink producer
- CSAV – Container shipping company
- Nexans – Cable manufacturing
- Various industrial and manufacturing companies
Media
The family's acquisition of Canal 13 gave them significant influence in Chilean media and television broadcasting.
Controversies
Environmental damage allegations
The Luksic family's mining operations have faced significant criticism and legal challenges related to environmental damage.
In 2023, the Chilean state sued mines operated by BHP, Antofagasta, and Albemarle over water use and alleged environmental damage in the Salar de Atacama salt flats. The State Defense Council alleged that increased exploitation of the Monturaqui-Negrillar-Tilopozo aquifer "caused serious, permanent and irreparable deterioration of the aquifer, of the Tilopozo plains, of the fauna, and of the life systems and customs of the Peine Indigenous Community."
Antofagasta has faced potential fines of up to $23.8 million and threats of closure of its biggest copper mine over violations of environmental permits, including water pollution. The company was also identified as responsible for the highest number of toxic spills in the region of Coquimbo; one incident dumped 13,000 liters of copper concentrate directly into a river.
Los Pelambres mine conflicts
The Los Pelambres mine, one of Antofagasta's largest operations, has been the source of prolonged conflict with local communities.
In 2014, the Supreme Court of Chile determined that Minera Los Pelambres must return water to the community of Caimanes, finding that construction of the El Mauro tailings dam had caused significant damage to the environment and people's lives. Demonstrations over water, pollution, and socio-environmental impacts in Caimanes have been ongoing for years.
In 2022, a break in the pipeline transporting copper concentrate contaminated nearby agricultural land, further inflaming tensions with local residents.
Archaeological destruction
The Chilean Archaeological Society characterized the Luksic family's mining operations as causing "the biggest loss of cultural heritage in Chile's recent history." The excavation for the El Mauro tailings dam resulted in the destruction of more than 500 boulders bearing 2,000 petroglyphs and the burial of a pre-Columbian cemetery and archaeological sites from two vanished cultures.
Indigenous water rights
Critics have accused Antofagasta of involvement in extreme water privatization in desert areas of Chile, allegedly depriving poor and indigenous families of their historic water sources. In the Antofagasta region, Atacameñas communities face a deep water crisis that environmental groups attribute to mining operations.
Political connections
The Luksic family has faced scrutiny over their political connections. Banco de Chile, controlled by the family, gave Chilean President Sebastián Piñera's daughter-in-law a special $10 million loan after she met with bank vice-president Andrónico Luksic Craig.
The family also attracted attention in the United States when it was revealed that from 2017 to 2021, the Luksics rented a $5.5 million mansion they owned in Washington, D.C., to Ivanka Trump and Jared Kushner. During this same period, Luksic was suing the U.S. government to advance mining leases in Minnesota for the Twin Metals project. A year after the Trump family members moved in, the Trump administration approved the leases. The Twin Metals project has faced opposition from Native American tribes and conservation groups over concerns about toxic chemical runoff affecting nearby water sources.
Personal life
Private lifestyle
Despite her status as one of the world's wealthiest women, Iris Fontbona maintains an intensely private lifestyle. She rarely grants interviews and carefully manages her public appearances.
She divides her time between three primary residences:
- Vitacura, Santiago, Chile – Her main residence in an upscale neighborhood of the Chilean capital
- Belgravia, London – A residence in one of London's most exclusive neighborhoods
- Liechtenstein – A European base
Religious faith
Fontbona is a devout Roman Catholic, maintaining the faith of her Catholic school education throughout her life. Her religious convictions are reflected in her philanthropic priorities and personal conduct.
Philanthropy
Iris Fontbona's most public activity is her participation in the annual Chilean Telethon (Teletón), a charity event supporting children with physical disabilities. She has become famous for making record-breaking donations to the cause.
In 2015, she donated a then-record CL$3.1 billion (approximately US$3.9 million) to the Telethon. In 2016, she exceeded this with a donation of CL$4.4 billion (approximately US$5.5 million), setting a new record for the charity event.
Her husband also established a significant philanthropic legacy in education. Toward the end of the 1990s, Andrónico Luksic began establishing links with prestigious universities worldwide to provide scholarships. Since then, more than $40 million has been invested in developing these programs, creating a network of more than 1,500 Luksic Scholars. The family has continued and expanded these scholarship programs since his death.
Net worth
As of November 2025, Forbes estimates Iris Fontbona's net worth at approximately US$36.4 billion, representing a significant increase from the US$23.79 billion estimated in 2024.
Her wealth rankings include:
- Wealthiest person in Chile
- Third wealthiest in Latin America
- Among the ten wealthiest women in the world
The dramatic fluctuations in her net worth over the years reflect changes in copper prices, the global economy, and the valuations of the various Luksic Group companies. Copper, as the foundation of the family's wealth, makes their fortune particularly sensitive to commodity market conditions.
Legacy
Iris Fontbona's legacy is multifaceted:
Family unity: She has maintained the cohesion of a blended family of seven children, avoiding the disputes that have fragmented other Latin American business dynasties.
Business stewardship: Under her watch, the Luksic Group has maintained and expanded its position as one of Latin America's most powerful business conglomerates.
Philanthropic impact: Her record-breaking charitable contributions, particularly to the Telethon, have provided substantial support to children with disabilities in Chile.
Environmental controversy: The family's mining operations remain sources of ongoing environmental and social conflict, creating a complicated legacy in terms of sustainable development.
As Chile's richest person and one of the world's wealthiest women, Fontbona represents both the tremendous wealth creation possible through natural resource extraction and the complex social and environmental tradeoffs that accompany such development.