Sort:  

But why steem supports private company? They want to trade steem and get profits from fee? They should invest something.

What? Steemit Inc has always been a private company.

I get that. I meant why Steemit should suport Bittrex, another private company.

Ah, likely because of RCs and they don't vote, and exchanges are very important for the price of Steem.

Coin Marketplace

STEEM 0.08
TRX 0.28
JST 0.035
BTC 106592.13
ETH 3602.04
USDT 1.00
SBD 0.50