[dentalnanobot]

Silicon ingots used in chip manufacturing aren’t that small: like a ~400mm diameter cylinder a metre or so long, and from memory several hundred kilos.

[HPsquared]

Looking up their website, it sounds like the company are making only the seed crystal in space, not the entire silicon boule:

"Space Forge is using space-derived crystal seeds to grow ultra-high quality semiconductor substrates on Earth."

https://www.spaceforge.com/