Q: Are there any requirements for e-mail addresses when signing up? What should I do if it says "this email has already been used" during registration?

A: Make sure your e-mail address consists of English letters or punctuation marks, and that each account can only use one e-mail address to register with ECHEMI.COM. If the registration process prompts that "this email has already been used," please use another email address to register or click "retrieve password" to log in and view the original registered store with this email.