I made a mod so that Players who prefer to play offline can get quicksilver, too:

https://www.nexusmods.com/nomanssky/mods/1814

You can now get Quicksilver by doing these things:
NEXUS MISSIONS
- Nexus Missions can give you Quicksilver as reward

DERELICT FREIGHTERS
- You can find Quicksilver in Derelict Freighters again (same Chance as in Halloween Update)

Great effort :)

Now if only HG would make this a default part of the game so we could all cary on playing the latest version off line.

I will try to do my best to keep this updated as quick as possible. My offline mods will be the first ones i will update when new patches are released.

Edit: of course it still would be better if HG would add those things for offline players as default :)

You are da man! Kudos!

Updated to work with Expeditions (3.34)