Don't know what you asking, UTrust has their own ERC-20 token, this means that you can store theme in any ETH address of which you own your private key
Can you send from exchange or only MyEtherWallet?
Never invest directly from exchange - you need to be in posess of private keys. If you invest from exchange you will probably loose your eth/tokens. Best way to contribute is to use wallet like MEW, metamask, etc.
I think utrust ICO works similar to the tezos ico. They have their own individual eth or btc address and wallet for each contributor then you can transfer your coins to which ever eth address that you like to transfer your coins. In that case I dont think it will be a problem to use exchanges wallets to send the eth directly to the ICO wallet. I will get more clarification from the team regarding this.