Offshore minerals such as placers are important for various industrial applications. In addition to deep sea minerals, offshore minerals could be explored for a sustained supply of metals for manufacturing and other blue economy industries. Resource mapping of offshore resources have been done by a number of countries in the Indian Ocean region. India, Australia, Indonesia and others have taken policy initiatives to harness those precious natural resources. The frontiers of blue economy in the coastal nations can be suitably segmented by scientific resource mapping, investment in cost-effective exploration technologies (from both public and private sources), capacity building and sharing of best practices.