1. Benn Harvey-Walker, 2022.09.01., https://bennhw.medium.com/why-choose-recycled-precious-metals-for-your-jewellery-52fce4558b4c#_ftn2
2. Investigating carbon footprint and carbon reduction potential using a cradle-to-cradle LCA approach on lithium-ion batteries for electric vehicles in China
3. Cho, Y.A., Lee, H.-S., Kim, Y.-J., Jeong, M.-J., Kim, K.-H., 2016, A study on the preparation of management plans according to the current status of generation and treatment of spent catalysts in Korea, Proc. of 2016 Korea Society of Waste Management Spring Meeting., Korea Society of Waste Managment, Chungju-si, Chungcheongbuk-do, p.32.
4. Chosun Biz, 2022.09.01., https://biz.chosun.com/industry/company/2022/02/07/PH26VYTXRJA3XLKI2FQMC7SY2Y/
5. CRIM, 2018. Resources Recycling Innovation Roadmap (in Korean), Seoul, Korea, p.122-123.