Ridley Corporation Limited announced the retirement on 1 July 2015 of Mr. John Spark from the Ridley Board and same day appointment of non-executive director Dr. Gary Weiss as the new Ridley Chair. Having been appointed to the Ridley Board in January 2008 and as Ridley Chair on 22 November 2010. Having been appointed to the Ridley Board in January 2008 and as Ridley Chair on 22 November 2010, John has chaired the restructure of Ridley to become a business dedicated to being Australia's leading producer of high performance animal nutrition solutions.