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Core Insights - Gina Rinehart, Australia's wealthiest woman, has increased her investments in various sectors, including Trump's media company and major mining resources, with a net worth of $27 billion [2][3] Investment Portfolio - Rinehart's U.S. stock and ETF portfolio grew by over $600 million in Q2, reaching approximately $3.1 billion in value as of June 30 [2] - She increased her stake in Trump's media company, Trump Media & Technology Group, by 67% during Q2 [2] - Rinehart holds a 7.8% stake in MP Materials Corp., the largest rare earth producer in the U.S. [2] Market Reactions - Following the U.S. Department of Defense's announcement of a $400 million investment in MP Materials, the company's stock surged by 70%, increasing Rinehart's holdings to over $1 billion [3] Additional Investments - Rinehart has also invested in Teck Resources Ltd. and holds a 3.7% stake in Hudbay Minerals Inc., which focuses on copper, gold, and silver production [3] - Other investments include NexGen Energy Ltd. (uranium exploration), Dell Technologies, and Nvidia [3]