ITU-T Recommendations: Green ICT Standards and Supplements

 https://www.itu.int/net/ITU-T/lists/standards.aspx?Group=5&&&&Domain=28 

Circular business models in the mobile phone industry

The Nordic Council of Ministers has published an extensive report on circular business models in the mobile phone industry in the Nordic countries, in which they identify opportunities and obstacles to growth in circular business models.

https://stateofgreen.com/en/partners/state-of-green/news/circular-business-models-in-the-mobile-phone-industry/

Confict Free Mineral Legislation in the US and EU

https://www.fairphone.com/2014/04/16/conflict-free-mineral-legislation-in-the-us-and-eu/