You can purchase OPTIMISM from these places
Go to Binance
To provide users with more secure and convenient block-chain asset exchange services, polymerization of global high-quality block chain assets, is committed to creating a world-class block chain asset trading platform.
Go to Kucoin.com
The People's Exchange
Go to Hotbit
Buy Bitcoin, Ethereum and more with Instant Delivery and easy verification on our trusted Australian Platform.
Go to Huobi
Huobi (火币网) is a Chinese digital currency trading platform and exchange based in Beijing. Huobi was founded in September 2013.
Go to Poloniex
Welcome to Poloniex. We are a US-based digital asset exchange offering maximum security and advanced trading features.