EU Raw Materials Strategy Draft Report- 2011- 2014

China's Rare Earths Game Plan: Part 1- The Effects of Reduced Export Quotas, Gareth P. Hatch, Technology Metals Research LLC

China's Rare Earths Game Plan: Part 2- The Issue of Pricing, Gareth P. Hatch, Technology Metals Research LLC 

Recycling Rates of Metals, United Nations Environment Programme

Strategically Important Metals, UK Government, The House of Commons, Science and Technology Committee