SFA chief executive Regan said: “We’ve called Karamoko into the Victory Shield squad. We will try to do everything we possibly can to bring him into the Scottish system.
“That’s something we definitely have on our radar.
“If you have talented players who are eligible for other countries then, clearly, they are always going to be attractive to other associations.
“We have to do what we can – and that is why he has been called into the Victory Shield squad.
“We want to make him feel wanted and valued and, certainly, Celtic are doing that.
“I visited the performance school at St Ninian’s a couple of weeks ago and saw the set-up they have, which is magnificent.
“The attention to detail and attention he is getting as a young player – and being brought into the Scotland set-up at a young age, at 13 years old – is a fantastic opportunity.
“We can only do everything we possibly can in our power. Ultimately the choice will come down to the boy and his parents.
“But we will do all we actually can to make him a Scotland player.”