Born in 1961, Dr. Andrew Forrest AO (often known by his nickname 'Twiggy') is one of Australia’s most prominent and dynamic self-made billionaires, a colossal figure in the mining and philanthropic worlds. He was raised on a remote Australian cattle station, Minderoo Station, in the vast Outback of Western Australia. This rugged, isolated upbringing instilled in him a profound connection to the land and a fierce, independent spirit.

Forrest attended the University of Western Australia, graduating with a degree in Economics and Politics. His early career spanned investment banking and mining, providing him with a sharp understanding of capital markets and resource valuation. However, his formative personal challenge was his commitment to the environment and social justice, which would eventually lead him to become a world-renowned philanthropist and conservationist. This unique background—Outback grit, academic rigor, and a crusader's passion—defined his path as both a ruthless industrialist and a dedicated humanitarian.

Andrew Forrest's defining entrepreneurial act came in 2003 with the founding of Fortescue Metals Group (FMG). At the time, the Australian iron ore market was dominated by two powerful players, BHP and Rio Tinto. Forrest took a massive, controversial gamble, betting that he could develop huge, untapped iron ore deposits in the Pilbara region of Western Australia and, crucially, secure massive export deals with China's rapidly expanding steel industry.

Despite intense skepticism and numerous setbacks, FMG successfully built vast infrastructure—mines, railways, and ports—and established itself as the world's fourth-largest iron ore producer. Forrest stepped down as CEO in 2011 to focus on his philanthropic work, but he remains the Executive Chairman and major shareholder, guiding the company's strategy. FMG’s success, built on aggressive growth and a visionary bet on China's demand, cemented his multi-billion dollar fortune. He has also diversified into agriculture and energy, notably spearheading the development of green hydrogen as a global clean energy solution.

Andrew Forrest and his wife, Nicola, are among the world's most dedicated philanthropists, being the first Australasians to sign the Giving Pledge, committing to give away the overwhelming majority of their wealth. Their primary vehicle is the Minderoo Foundation, which tackles monumental global challenges.

• Walk Free Foundation: A global initiative established by the family to work toward the eradication of modern slavery and human trafficking, famously bringing together faith leaders and governments at the Vatican.
• GenerationOne: A program focused on ending Indigenous disparity in Australia through education, training, and employment, reflecting his deep commitment to Australian social justice.
• Ocean and Environmental Conservation: He has supported various marine conservation efforts, including previously aiding the controversial Sea Shepherd Conservation Society and making major investments in plastic and ocean waste reduction technologies.

Andrew Forrest projects the rugged, authentic style of the Australian mining boss and cattle baron. His fashion is practical and often casual, favoring open-necked shirts, simple chinos, and business jackets, reflecting his preference for the Pilbara and the Outback over the corporate formality of Sydney. His presentation is always energetic and driven, reflecting his nickname 'Twiggy.'

His lifestyle is defined by the massive scale of his philanthropic and business projects. He owns the historic Minderoo Station, a crucial asset for his agricultural and personal identity. Travel is global and high-level, flying privately to meet with world leaders, major investors, and indigenous communities. The ultimate luxury he commands is the freedom to devote the majority of his time and capital to ending modern slavery and pioneering green hydrogen, using his wealth as a tool for profound global intervention.