the "blue" square KP Capacitors -> which manufacturer ?

my favorite small low-tolerance PP film/foil caps from EMZ are not built anymore ...
this "orange" ones -> https://24max.de/temp/EMZ-KP.jpg
like they were used on THEL's old Modules: -> https://24max.de/temp/SAW30.jpg

so nowadays you see these "blue ones"
that should be form/fit/function compatible:
e.g. on a newer version of THEL RIAA pre-amp: -> https://phelektronik.de/bilder/groß/SoS-1.jpg
(I found out than you can get them with 1% tolerance as well)

what is the manufacturer of these ?
does anyone have a data sheet ?