Another drop from ships and bots. It would drop less and have more value than regular scrap. The bigger the ship the higher the chance, but not above 1 out of 4 or less. It would be cool if it could be used in some manufacturing too.

High value would be enough already. Would give lucky newbs the chance to get cash early. Maybe make them worth 500k the piece because "they can be easily used in ship production, without much refurbishing work". Chance should be significantly low though. Maybe 1 in 50. Or 1 in 100 even.
Just my opinion.

+1 apart from that.

+10
1 in 50 sounds fine to me.
As long as I don't need to Mine Xith

Isn't that what addon drops essentially do? Weapons typically sell a lot better than scrap metal per-CU

-1. Scrap is scrap. There is no reason to have fancy scraps. If you want a chance of occasionally getting more value out of a kill, just have that random chance increase the amount of scrap dropped instead of increasing the value of the scrap. Or increase the likelihood of dropping equipment or commodities instead.

The reason I suggest another drop is that a lot of rare stuff goes into the making of manufacturable ships and there would be various values of scrap coming out of them depending on where its hit and how hard and so on. For instance, if a trident is killed and the reactor is damaged and therefore scrap it would still be worth more than a random piece of hull. Just a thought to make the game more interesting.