A unit of mass where “metric ton” (or tonne) equals 1,000 kilograms. The internationally standard symbol is “t”; “mt” is an informal variant (potentially confusing with “milliton,” though it actually denotes metric ton). Widely used in international trade, shipping, and energy statistics. In China’s legal metrology, “ton” refers exclusively to the metric ton, and the correct symbol is “t”.

A unit of mass where “metric ton” (or tonne) equals 1,000 kilograms. The internationally standard symbol is “t”; “mt” is an informal variant (potentially confusing with “milliton,” though it actually denotes metric ton). Widely used in international trade, shipping, and energy statistics. In China’s legal metrology, “ton” refers exclusively to the metric ton, and the correct symbol is “t”.