Twer worries that Mallow's face contortions mean trouble for their little operation, but Mallow actually feels the lack of trouble is the trouble.
Huh? Well, he's getting into the steel foundry far too easily, suggesting that Korell doesn't have nuclear power. Also, there's the fact that nothing about Korell suggests nuclear power. Their tech is junk.
A ground car arrives to take them to the foundry. Guess the nuclear power thing can wait.