Ore deposit geologists, mineralogists, geochemists, and metallurgists are invited to attend the 11th International Platinum Symposium to be held in Sudbury, Ontario, Canada between 21 and 24 June 2010, immediately after the 2010 Goldschmidt Conference in Knoxville, Tennessee, USA. Sudbury is one of the world’s premier Ni-Cu-PGE mining districts and one of the Earth’s oldest and best exposed meteorite impact sites. As one of the largest mining clusters in the world, Sudbury has a vibrant mineral exploration and mining community that includes several major producers and numerous junior exploration companies, making Sudbury one of the best places in the world to host a multidisciplinary meeting of this type. The City of Greater Sudbury, the largest city in northeastern Ontario, is set amidst glacially-shaped ridges and green boreal forests, and includes over 200 lakes. The success of thirty continuous years of environmental reclamation efforts has led to numerous national and international awards.