Mackay said today: "At this point in time I'm not thinking about loaning out any players.
"My focus is on bringing new faces in.
"Possibly in the last week of August or even in the loan window in September we will have to look and see who could be going out.
"But we will have to see where we are when that time comes."
The City squad, including Mason, are at a training camp in Switzerland at the moment. They return on the weekend ahead of the first pre season friendly against Forest Green Rovers on Wednesday 24th July ko 7:45pm.
Source: Cardiff City Online