IRIS FONTBONA

Iris Fontbona was born in 1942 in Antofagasta, Chile. She married Andronico Luksic Abaroa, who built one of Latin America's largest business empires from scratch.

When Andronico died of cancer in 2005, Fontbona inherited control of the Luksic Group, a sprawling conglomerate with interests in mining, banking, beverages, manufacturing, and shipping.

The empire she oversees is staggering in scope. Antofagasta PLC, listed on the London Stock Exchange, is one of the world's largest copper producers.

It operates three major mines in Chile: Los Pelambres, Centinela, and Antucoya. Copper revenues alone generate billions annually.

Then there's Quinenco, the family's holding company on the Santiago stock exchange, which controls Banco de Chile (the country's second-largest bank), CCU (South America's second-largest brewer), CSAV (a major shipping line), and Nexans (a French cable manufacturer).

Fontbona runs this empire with her three sons: Andronico, Jean-Paul, and Guillermo. The family structure is tight.

Decision-making stays inside the family. Outside analysts and journalists get almost nothing.

Forbes has called her the most private billionaire in the world, and that's not an exaggeration.

Antofagasta PLC (controlling shareholder), Quinenco (controlling shareholder), Banco de Chile (via Quinenco), CCU - Compania Cervecerias Unidas (via Quinenco), CSAV - Compania Sud Americana de Vapores (via Quinenco), Nexans (major shareholder)

Fontbona and the Luksic family are old-school conglomerate builders. They don't flip companies.

They buy controlling stakes in businesses they understand, install family members or trusted executives, and hold for generations. The portfolio is diversified across industries but concentrated geographically in Chile and Latin America.

The family's approach to copper is particularly telling. They don't hedge aggressively or try to time commodity cycles.

They own the mines, they operate them efficiently, and they ride the cycles. When copper prices crashed in 2015-2016, they didn't panic-sell.

They cut costs, maintained dividends where possible, and waited. When copper rebounded to all-time highs in 2021-2022, they reaped the rewards.

Patience is the entire strategy.

Holding Antofagasta PLC through the copper supercycle of 2020-2022. Copper prices surged from $2.50/lb to over $5/lb as the world scrambled for the metal needed in electric vehicles, renewable energy, and data centers.

Antofagasta's market cap roughly doubled. The family didn't sell a share.

They just watched their net worth climb by billions because they had the patience to sit through the down years.

The CSAV shipping investment was a nightmare for years. The global shipping industry went through a brutal downturn after the 2008 financial crisis.

CSAV lost hundreds of millions of dollars between 2009 and 2014. The family had to pump in capital to keep it alive and eventually merged CSAV's container business with German shipping giant Hapag-Lloyd in 2014, diluting their position.

It survived, but it was expensive and painful.

Control what you own. Never be a minority shareholder if you can avoid it.

The Fontbona-Luksic approach is about having the final say in every business they invest in. They don't buy 5% of a company and hope for the best.

They buy 50% or more and run it. This philosophy means they grow slower than aggressive investors but they almost never get surprised by decisions they didn't make.

Born in 1942 in Antofagasta, Chile. Married Andronico Luksic Abaroa, who died in 2005.

Three sons: Andronico Jr., Jean-Paul, and Guillermo. All three are actively involved in managing the family business empire.

The Luksic family is of Croatian descent, part of a Croatian immigrant community in northern Chile that dates back to the 19th century. This immigrant heritage is a big part of the family identity.

Fontbona's formal education details are not publicly documented, consistent with her extreme privacy. What is clear is that she learned the business from decades alongside Andronico Luksic, who was a self-made billionaire.

Her real education was watching her husband build an empire from nothing and then inheriting the judgment required to keep it growing after his death.

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