10 Best Space Exploration Stocks to Buy Now

2. Lockheed Martin Corporation (NYSE:LMT

Number of Hedge Fund Holders: 73

 Korea Zinc, the world’s largest zinc smelter, signed a memorandum of understanding with Lockheed Martin Corporation (NYSE:LMT) on August 25, 2025, to establish a China-free germanium supply chain. High-purity germanium made at its new Onsan facility will be supplied by Korea Zinc, and Lockheed Martin Corporation (NYSE:LMT) will be granted priority procurement rights. The agreement focuses on Korea-U.S. collaboration on essential minerals and was observed by U.S. Commerce Secretary Gina Raimondo, Michael Williamson, President of the firm, and Yun B. Choi, Chairman of Korea Zinc. Korea Zinc intends to invest KRW 140 billion in its manufacturing facility with the goal of producing 10 tons per year by 2028.

Germanium is essential for satellite solar panels, thermal imaging, infrared detectors, and night-vision goggles. China currently contributes 68% of global refined output (140 tons in 2021), making diversification a top aim. Korea Zinc, South Korea’s sole producer of antimony, indium, and bismuth, solidifies its position in key minerals. Lockheed Martin Corporation (NYSE:LMT), with a $176 billion backlog by 2024, receives safe access for defense and space applications. It is ranked second on our list of the Best Space Stocks.