Twenty Seven Co. Limited announced that Mark Siford has been appointed an independent non-executive director, effective immediately. Siford has worked in the institutional stockbroking and investment business for over 25 years and is extremely knowledgeable across a range of global industries, particularly base-and-specialty-metal supply chains for the technology sector. Over the past few years he has held a non-executive director role with private company Scope Systems, which specialises in mining software solutions for over 150 mining and circa 40 mining services corporates in Australia, Africa and Asian Pacific region. His core responsibility has been to shape global corporate strategy and facilitate business development.