An initial coin offering (ICO), the cryptocurrency equivalent of an IPO, is a form of unregulated crowdfunding used by start-ups to fund their projects.
source https://www.google.com/url?rct=j&sa=t&url=https://www.scmp.com/business/banking-finance/article/3020406/singapores-move-waive-sales-tax-digital-payment-tokens&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNFePoqrvUG7itseSQ7Esiel3fNY3Q