The 6th International Seminar on Copper Hydrometallurgy was held from 6 to 8 July in Viña del Mar, Chile, providing a space for discussion of the most recent innovations and technological developments in the hydrometallurgical processing of copper.

The HYDROCOPPER 2011 Organising Committee was proud to welcome over 300 delegates to Viña del Mar, Chile for a discussion of recent innovations and technological developments in the processing of hydrometallurgical copper ores.

We would like to extend our profound gratitude to all those involved in the HYDROCOPPER 2011 Seminar organisation and thank them for their contributions of time, advice and expertise to this project. We are particularly grateful to:

• The authors for their invaluable contributions, great efforts to meet deadlines, and willingness to share their knowledge and experience.

• The technical reviewers for their willingness to invest their personal time in the revision of articles, a critical process to ensure the quality of the seminar publication.

• The sponsors for their generous support.

• The media partners for their assistance in promoting the seminar and bringing updated information to the public in a timely manner.

• The Gecamin team for their hard work, professionalism and continuous commitment to making this seminar a success.

• The Technical and Advisory Committees for their advice, assistance and collaboration in promoting the Seminar.

And last but certainly not least, we would like to thank all participants, whose interest and enthusiasm made this event so versatile, enriching and rewarding.

With gratitude,

The HYDROCOPPER 2011
Organising Committee