As reported by German newspaper TAZ (“Die Tageszeitung”) on 10 February 2019, the German Federal Ministry for Economic Cooperation and Development (BMZ) has drafted an as of yet unpublished law on mandatory human rights due diligence for German companies and their supply chains.

https://www.business-humanrights.org/en/german-development-ministry-drafts-law-on-mandatory-human-rights-due-diligence-for-german-companies