LightPath's strategic value looks enormous as China restricts rare earths, since it offers the only US alternative to restricted rare-earth materials. nLight's sudden China supply issues, which its management said could spill into defense and high-energy lasers, show China trying to slow the US defense industry. LightPath is also moving up the value chain into cameras built with its proprietary glass, and a recent acquisition lets it make much larger optics for markets such as satellites. x.comÂ