Now a first teamer with United, Chong has been linked with a loan move to Feyenoord next season to maintain his development.
He told NOS: "I am a player from Manchester United and I focus on that. I try to work hard in every training session and then I see what the future holds.
“That is a difficult question because you are not thinking about it at the moment. If you are a player of United, you think of that.
“I don't exclude anything and I can't see into the future. Whatever comes, I will deal with it then."
There are some at Feyenoord who were unhappy with Chong's decision to leave at 16.
He added: "Everyone can have their opinion. I don't regret leaving for United. To be honest, I just wanted a new adventure at the time. I've already made my Champions League debut, so it's all been good."