Supported by the following organizations
This is to certify that Cas Hannink 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 8, 2025
- Valid Certificate ID 5b7c78e107774d4f945f4e1130d7da2c