Not only has Slim contributed between $1,000,001 and $5,000,000 to the Clinton Foundation, but his company Telmex has contributed an additional grant between $1,000,001 and $5,000,000 through its foundation. Slim has also pledged $100 million to the Clinton Giustra Sustainable Growth Initiative, a collaboration between the Clinton Foundation and Canadian mining tycoon Frank Guistra.

Slim earned his fortune by gaining a stranglehold on the Mexican telecom industry so tight that the constitution had to be amended earlier this year to give other companies a chance. His net worth managed to grow following the new antitrust regulations, and he is now strengthening his hold over the Mexican banking sector.

In addition to the charitable giving, Hillary Clinton was paid between $250,000 and $500,000 for a speech she gave to Slim’s Telmex Foundation.