Alchemint is a decentralized price-stable cryptocurrency management system runs on the blockchain of NEO. It creates high performance application-level digital currency through distributed ledger technology. A series of risk control measures like the mortgage of digital assets, the release of stable digital currencies, the management of the market value of collateral are implemented by smart contracts to establish a resilient, open, transparent and stablecoin issuance system. Alchemint is not controlled by any individuals or organizations. It does not need audit companies or regular publication of reserved assets. Everyone is able to check real time market value of collateral, the circulation of stable currencies and the overall condition of the system on the public blockchain. There is no need to worry about the runaway, bankruptcy or account suspension of Alchemint for the smart contracts guarantee all the collateral will not be embezzled. The holders of stablecoin also do not have to worry about the fluctuating of the market value of collateral. Alchemint has a complete set of risk control measures to manage the collateral’s market value so that the fluctuating will not trigger crisis of the whole system.