The CAST Cooperative Research Centre was established in 1993 as a joint venture between industry, research and government partners to carry out research and development in the area of light metals. Over the thirteen years since its formation CAST has developed a world class research program and, in addition to the significant application of outcomes by our industry partners, much of our research is being commercialised. In addition, CAST has developed a significant education and training program, a best practice technology transfer program for small and medium enterprises, consulting and design activities and established an alliance with Advanced Magnesium Technologies as a provider of their research and development needs. The development of CAST has been achieved by cooperation between all our partners who represent most of the light metals research groups and a significant proportion of light metals industries in Australia. The close involvement of the industry partners in all aspects of the operation of CAST has ensured we have a program of activities focused on delivering benefits to Australia’s light metals industry. This paper presents an overview of the magnesium research undertaken by CAST and other research groups such as the Centre of Excellence in Design of Light Metals and the CSIRO including their Light Metals Flagship program. Some highlights are new magnesium powertrain alloys, an alloy suitable for decorative and domestic applications called AM-lite, and new CSIRO casting technologies T-Mag and a twin roll strip casting process.