Question for UK soap makers

[bizarrebunny]

This is probably a long shot but has anyone come across caustic soda which is actually produced in the UK?
I'm trying to make soap from just UK produced ingredients, so far every company I have asked imports the caustic soda and then repackages it here.
Thanks
Zoe

 

[dixiedragon]

https://www.vynova-group.com/products/caustic-soda

Maybe ask them who they sell to?