Search ABOUT US INNOVATION INVESTOR RELATIONS SUSTAINABILITY MEDIA CAREERS CONTACT US Home > About Us > History History ABOUT US Divisions Products and Technologies Industries Vision and Strategy Governance History Awards Discover how Johnson Matthey grew from its beginnings in 1817 to become an international leading speciality chemicals company 1800 1850 1900 1950 2000 2010 Select language Spanish French Japanese 1817 - 1850 Establishing the company 1817 Percival Norton Johnson establishes business as gold assayer in London 1822 Offices moved to 79 Hatton Garden 1832 Percival Norton Johnson took George Stokes into partnership – known as Johnson & Stokes 1837 Percival Norton Johnson took WJ Cock into partnership – company known as Johnson & Cock A History of Platinum and its Allied Metals This book describes the history of platinum and its associated metals, covering important discoveries and scientific work on the platinum group metals up to the early twentieth century. With 24 chapters, over 600 references and 235 illustrations, 'A History of Platinum and its Allied Metals' by Donald McDonald and Leslie B. Hunt is the definitive description of how science was able to progress by means of the unique properties of these metals. Free – read and download on Google Books INFORMATION FOR Investors Customers Innovation Analysts Journalists Job Seekers QUICK LINKS About Us Where we Operate Contact Us POPULAR CONTENT Sustainability in Action Results Centre Job Vacancies © Johnson Matthey 2014 Accessibility Glossary Sitemap FAQs Terms of Use Acceptable Use Policy Privacy Policy We use cookies to help understand how people use our website. By using our site, you agree to our use of cookies. Find out more in our privacy policy.