T or Peterson is an American billionaire who built his fortune as a key executive at Glencore, the Swiss commodities trading and mining giant. He joined the firm in 1992 after gaining six years of experience trading commodities at Phibro-Salomon in New York, bringing valuable market expertise to the team. For decades, he led the marketing operations for Glencore's coal division, playing a pivotal role in establishing the company's dominance in the global energy markets.

As the only American among the cadre of billionaires minted by Glencore's public listing, Peterson holds a significant minority stake in the company, which trades on the London Stock Exchange. He stepped down from his executive role in 2021 amidst a broader leadership reshuffle at the firm but remains a wealthy shareholder. His career exemplifies the lucrative nature of high-stakes commodities trading, having navigated volatile markets to build lasting personal wealth.