An overview of KNAW OA deals with publishers is available from KNAW intranet:
https://intranet.knaw.nl/nl/service/contentlicenties/knaw-brede-contentlicenties
Springer
License and conditions:
https://www.openaccess.nl/en/publisher/springer
Wiley
License and conditions:
https://www.openaccess.nl/en/publisher/wiley
https://www.openaccess.nl/nl/uitgever/cambridge-university-press
Elsevier
License and conditions:
https://www.openaccess.nl/en/publisherdeal/1-jan-30-april-2020
Open Access deal met Elsevier. Zie hier de uitgebreide FAQ’s.