This mod enables quality filtering for planet-specific materials: uranium ore, tungsten ore, holmium ore, and bioflux.

A special Filtering Machine allows you to process uranium, tungsten, and holmium ores together with a 20% base chance to enhance their quality. It also supports up to 3 modules.

But it's not as simple as it sounds. The Filtering Machine can only be built in space and it's powered by a small amount of promethium dust. There's a 10% chance to lose input materials during filtering, so you'll need to design a buffer system, which is tricky in space. Each operation also requires a filter, crafted from carbon and viscose (a liquid from my other mod: Wood Processing).

Holmium ore is intended to be used with my other mod: Crushed Holmium.

A separate recipe lets you produce quality bioflux using biosolution (a liquid made from bioflux) and a filter.

I created this mod as an alternative to recycling loops, which I personally don´t like, because they feel repetitive.
This introduces a new production line for achieving quality, with unique challenges and new mechanics.

I did not include iron, copper, coal and stone. These can be acquired from asteroid reprocessing and I didn´t want to eliminate it from the game.

Big thanks to Hurricane046 for the design of the Filtering Machine. Without it, this mod wouldn't have been possible for me.

This is an early version, but it should be functional. Let me know, if there are any problems. I am not a programmer, but I’ll do my best to improve it.