BitForex is a cryptocurrency exchange with headquarters in Singapore. BitForex also has several offices in other countries. It is one of the larger exchanges by trading volume and offers a large variety of trading pairs. Trading and withdrawal fees are similar other exchanges.

Simex is an exchange that is focused on the Russian crypto market but is registered in the United States. Simex offers a limited token selection that users can purchase with USD or Rubles. They offer convenient debit card withdrawal options.

Trading Fee: 0.2%
Deposit Fee: Up to 3.3%
Withdrawal Fee: Up to 6%
Number of Tokens/Coins: 6

Simex issued the SMX token, which gives holders discounts on trading.

Huobi is one of the world's leading trading platform, committed to providing investors with a professional, safe and honest transaction services. The Exchange charges no deposit fees but does have an exit fee of between 1% and 2%. It was originally based in China, but moved its' headquarters to Singapore, and also has offices in Hong Kong, Korea, Japan and the United States.
Huobi has raised capital from investors including Dai Zhikang, Sequoia Capital and Zhen Fund. Huobi is a major player in the Chinese blockchain scene. It runs a mining pool, (Huobi Pool) incubator, (Huobi Labs) and a research institution. (Huobi Academy of Blockchain Applications)
Trading fee of 0.2%