In what exchange I can buy ebtc?

I think even without a pump, eBTC's value will naturally grow with time.

This is what I believe too.

You can buy on HitBTC, EtherDelta, or on Stocks.Exchange. Most of the volume goes through HitBTC.

Thanks mate sorry for late reply, I'll go with etherdelta even they are reported and hacked before.

It's worth only if you trade a decent amount, transaction cost is pretty high for low volume trading.