I bought a hanging lamp which came with two wires (L and N) connected to it, plus a loose earth wire with a "ring" attached to it (see photo below).
I would need to connect the lamp to the ceiling using this box (coming from the ceiling):
The "white" wire is the earth wire (covered by some plastering).
I also have this hook (that will hold the lamp) that I need to screw in the ceiling:
My question is: where should I attach the loose earth wire to? Should I screw the "ring" of the loose earth wire to the hook of above, and then plug the rest of the wires? Something like this: