diff --git a/QOD-October-2021.md b/QOD-October-2021.md
index 51b4ce9..d35f733 100644
--- a/QOD-October-2021.md
+++ b/QOD-October-2021.md
@@ -16,9 +16,10 @@ Virtual events will be taking place online (see links below) and in the links sh
 
 No | Name | Time | Speaker | Country | Language
 ---|------|------|-------------|---------|---------
-1 | qlyrx plugin | [07h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=07&min=00&sec=0&msg=QGISOpenDay-Laza "click this link to find out the time in your local time zone") | Dror Bogin | Israel | English
-2 | MapTiler plugin | [08h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=08&min=00&sec=0&msg=QGISOpenDay-Laza "click this link to find out the time in your local time zone") | Adam Laza | Czech Republic | English
-3 | Walkability plugin OS-WALK-EU | [09h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=09&min=00&sec=0&msg=QGISOpenDay-Gerten "click this link to find out the time in your local time zone") | Christian Gerten | Germany | English
+1 | Processing Provider plugins | [06h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=06&min=00&sec=0&msg=QGISOpenDay-Kwast "click this link to find out the time in your local time zone") | Hans van der Kwast | The Netherlands | English
+2 | qlyrx plugin | [07h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=07&min=00&sec=0&msg=QGISOpenDay-Laza "click this link to find out the time in your local time zone") | Dror Bogin | Israel | English
+3 | MapTiler plugin | [08h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=08&min=00&sec=0&msg=QGISOpenDay-Laza "click this link to find out the time in your local time zone") | Adam Laza | Czech Republic | English
+4 | Walkability plugin OS-WALK-EU | [09h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=09&min=00&sec=0&msg=QGISOpenDay-Gerten "click this link to find out the time in your local time zone") | Christian Gerten | Germany | English
 
 # Organisers
 
@@ -31,6 +32,18 @@ No | Name | Role | Contact
 
 # Presentations
 
+## Processing Provider plugins
+
+**Time:** 29 October 2021 [06h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=06&min=00&sec=0&msg=QGISOpenDay-Kwast "click this link to find out the time in your local time zone").
+
+**Duration:** 30 minutes
+
+**Venue:** [Youtube Live Stream Link]()
+
+**Presenter:** Hans van der Kwast
+
+**Description:** More and more tools in the QGIS Processing Toolbox are available through so-called Processing Provider plugins. With these plugins you can use tools from third-party providers, for example, [R](https://youtu.be/GyHgjcAYVW4), [WhiteboxTools](https://youtu.be/_Uhm40M-VAA) or [PCRaster](https://youtube.com/playlist?list=PLeuKJkIxCDj2xbV45C45wz3N89FvmTuSu). There or also providers that are currently included in QGIS, such as SAGA and GRASS. Tools from these Processing Provider plugins integrate neatly into QGIS, so you can also create graphical models and combine tools from different providers. The presentation will discuss the installation of these plugins and give examples of how to use them. If you're interested in creating a Processing Provider plugin, this presentation will also give you some guidelines. The current challenges with the processing providers included in the QGIS Processing Toolbox and [plans for the future](https://github.com/qgis/QGIS-Enhancement-Proposals/issues/226) will also be discussed.
+
 ## qlyrx plugin
 
 **Time:** 29 October 2021 [07h00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?year=2021&month=10&day=29&hour=07&min=00&sec=0&msg=QGISOpenDay-Laza "click this link to find out the time in your local time zone").