Well notice how CB6 was missing? Well there were coupes made in Japan that used the 2.0 motor.

CB6 Accord Coupe 2.0L (J) F20A DOHC PGM-F1 1990-1994

We thought that all the coupes were made here in the US but then how do we explain that one?

They were made here. It it for the Japanese market as that motor was not offered here.