1. Haider SK, Lee J-Y, Kim D, Kang YS (2020) Eco-friendly facile three-step recycling method of (Nd-RE)2Fe14B magnet sludge and enhancement of (BH)max by ball milling in ethanol. ACS Sustainable Chem Eng 8:8156–8163
2. Future Market Insights (2015) Rare earth metals market: global industry analysis and opportunity assessment, 2016–2026. Future Market Insights, London
3. Takeda O, Okabe TH (2014) Current status on resource and recycling technology for rare earths. Metall Mater Trans E 1:160–173
4. Nakamura T (2016) NEDO report: review of rare metals. New Energy and Industrial Technology Development Organization, Japan (in Japanese)
5. Kang J (2020) Current status of rare earth industry in Japan. Ceramic Korea 3:72–79 (in Korean)