Comment by cyberax

But what is "construction"? If it means "building walls", sure.

But what about assembling and installing the battery presses? Or maybe setting up the electrical connections for them?

It is a genuinely ambiguous area, and I won't be surprised if Korean companies tried to push it a bit too far. This still doesn't excuse the ICE behavior a bit. They could have just revoked the visas and asked employees to leave.

It's also quite clear that the Korean companies were not flying engineers here to save on wages.