Visited today without charging.
It's not super clear who can charge here. On Swisscharge it's just named "Suissetec Lostorf" without any other info. On Chargemap the location is named "Bildungszentrum Suissetec (Privat)" with description saying only for employees.
On location I didn't see any sign restricting access. But there is some construction work so maybe there are signs or gates that were temporarily removed.
When entering the parking from the intended direction, the charger is hidden by the trash compactor.
The charger has all the regular Swisscharge stickers, but no additional instructions.
There's only 1 parking spot with an EV sign. It's not the most clever positioning because you cannot park any vehicle to the left, yet that's the side where the AC must be plugged so it would have been most practical if you park a car using DC in front.