Astron Ltd. is an investment holding company, which engages in the development of heavy mineral properties. The company is headquartered in Melbourne, Victoria. Its principal activities include work to advance its interest in the Donald Rare Earths and Mineral Sands Project (Donald Project) in regional Victoria to operations; exploration activities through Jackson Mineral Sands Pty Ltd, to delineate and advance its Jackson Rare Earths and Mineral Sands Project, which is located in close proximity to the Donald Project, and the operation of titanium and zirconium minerals processing activities, using a mineral separation plant at Yingkou, China; the evaluation and advancement of downstream applications for zircon and titanium, and titanium and zirconium minerals procurement and trading activities through its subsidiary Astron Titanium (Yingkou) Co. Limited.