Registration How do i register? For Quick Registration, 1. Go to https://www.trade21.com.sg 2. Click on Sign Up (in the upper right corner) 3. Fill in your email and password and click Sign Up. 4. Your account is now setup and you can proceed with your ordering. Once you’ve signed up, you can click on My Account at the top of the page to view, edit or provide more information of your profile.