You can purchase DIA-DATA 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 Poloniex
Welcome to Poloniex. We are a US-based digital asset exchange offering maximum security and advanced trading features.
Go to Coinone
Coinone provides various blockchain and cryptocurrency related services, including cryptocurrency exchange center and foreign remittance.
Go to OkEx