Confusion due to labeling on the trailer plate. The parentheses as read across each rating category are very confusing.
But 1kg = 2.2 lb.
Follow that math and see the larger numerical ratings are in lb and the lesser are the kg. That’s consistent for all values.
Some of the above inputs seem to be getting the conversions backwards.
That said, per axle loading of 3,500kg, or 7,700 lbs seems implausible based on norms.
The question of the label values remains due to the axle loading anomaly.
Time to contact the trailer manuf (or equal).