Supported by the following organizations
This is to certify that Joanna König successfully completed and received a passing grade in CESBE1x: Circular Economy for a Sustainable Built Environment a course of study offered by DelftX, an online learning initiative of Delft University of Technology.
Noted by
Professor Arno Smets
Director Extension School Education, on behalf of the Quality Assurance Board Delft University of Technology
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- Verified Certificate Issued December 12, 2025
- Valid Certificate ID 6bdefdf16dbc4ef4af194bb58f6123ed