According to TRON official website, TRX MainNet will implement on May 31st, 2018(UTC+8). TRX on ERC20 will be swapped to TRON MainNet during June 21st- June 24th, 2018(UTC+8). Click to learn more details: https://tron.network/trx?lng=en
CoinTiger will support TRX MainNet token swap and solve all technical problems for users during the process. As the process involved is complex in nature, we suggest that users deposit their TRX tokens on CoinTiger exchange,so we could swap your TRX assets to TRX MainNet after TRX MainNet implements.