In many European languages the spelling like "ton" is used for 1000kg.
It's primarily in English where there's still a need to distinguish between metric tons and older units.
In UCUM it’s disambiguated as MetricTon
Ton v Tonne?
"metric ton" vs "short ton" is a little long but precise. Lately I've been thinking about the economics of plastic materials which are made from monomers which cost about 50 cents per pound or, as it turns out, $1000 per short ton. It is all approximate (prices go up and down) and might as well be per metric ton.