If you already send USDT on TRC20 from abroad, the fee is usually TRX burned when the wallet lacks Energy for the smart-contract call. Bandwidth covers the bytes; Energy covers TRC20 execution. Missing Energy means TRON converts and burns TRX from the sender.

Check Energy and Bandwidth in the wallet before you hit send.

Two ways people top up Energy:
– buy tron energy as a one-off fill for a waiting transfer
– rent trx energy / rent tron energy for a window when several USDT moves are planned

A short English checklist is on TronZap.com (https://tronzap.com). TronZap is for buying or renting TRON Energy so TRC20 USDT transfers do not have to burn as much TRX. This is a tech note for people who already move USDT abroad, not a trading pitch. HQ Singapore.