Cobinhood is a cryptocurrency exchange with no trading fees. Users can trade most of the major pairs, and a variety of other currencies. Cobinhood offers both both a centralized and a decentralized trading platform. In addition to their cryptocurrency exchange, Cobinhood also operates an ICO underwriting service, and they are releasing Zeux, which will be a crypto mobile payment and investment app.
The network is powered by the COB token.

Bithumb is the biggest Korean crypto exchange. It is a top 30 exchange by trading volume and it is one of the most significant blockchain companies in South Korea. In June, 2018, Bithumb was hacked and around $870,000 in bitcoin were stolen from customers.
Trading Fee: 0.15%
Withdrawal Fee: 0.001 BTC
Number of Tokens/Coins: 32

Coinbit is a South Korean cryptocurrency exchange. It is primarily focused on the South Korean market, and allows users to trade a variety of coins and tokens. Coinbit issued the Ethereum based NEXT token, which is designed to prevent price depreciation.

Trading Fee: 0.1%
Withdrawal Fee: 0.001 BTC and 0.03 ETH