Today I returned from the summer forest camp and on the page of the company ION ICON saw a message according to which in the near future the process of exchange of digital tokens ICX ERC20 to the crypto currency of the MainNet network will be launched. At the moment, such exchanges as Binance, Upbit and Bithump, as well as the ICONex currency purse expressed in support of the exchange.
 Thus, ICON network will exchange ICX ERC20 tokens for ICX coins of the main network in the ratio 1: 1. To successfully complete the exchange, users need to deposit their digital currency on the platform in time to:

Binance: June 20, 2018 (09:00, UTC + 9)
Upbit: June 20, 2018 (22:00, UTC + 9)
Bithumb: June 21, 2018 (time to be announced soon)
ICONex: June 25 (13:00, UTC + 9)

Does anyone know what to do to those who have left the ICX to lie on other exchanges (hitbtc, huobi for example)? And whether it is necessary to do something at all?