The current recipe ratio of 50x spoilage for every holmium ore is pretty ridiculous. Only getting 1 holmium ore for every 500 sludge feels off too. That's 10 barrels of sludge for every useful nugget.

Please consider reducing both of these by 5x or 10x: so 5-10 spoilage for every ore and 50-100 sludge per ore.

Using spoilage as the byproduct feels really out of character for Fulgora. Maybe it should be something like Iron Gear Wheels, Iron Sticks, Copper Wire and other trash?

Spoilage can be voided using recyclers before unlocking heating towers. Idea behind it is that biochambers can be used for oil processing making it easier to get more sulfur, because water on fulgora is limited resource.
And with enough spoilage to turn into nutrients you can create self sustaining loop.

Maybe refinaries and biochambers would work better than just chemical plants?

About ratios:
I use slightly better ratio 1/4 and 8 spoilage on my other mod and iit works well but because in making holmium plates you can use productivity 2 times (biochamber and foundry) I thought i need to compensate for that.

In base game you need to recycle 100 scrapp for one ore and recycling gives more byproducts

Also general rule is that fluid count 10x item in terms of reciipes

So 10 unit of fluids is 1 item

Balancing is tough, I appriciate feedback, I will revisit ratios today

rebalanced recipe
but based on testing it is close to what I expected from it