Translation:El hombre es de China.
For some reason I think this looks incorrect in Spanish. Seeing es next to de looks wrong. I'm not sure why I feel that way I don't know a lot about Spanish.
Don't we use está after the person for example, El profesor está aquí Why know es?
Anyone needs a detailed answer, take a look at here: https://forum.duolingo.com/comment/16271715/What-is-the-difference-between-es-and-est%C3%A1