Contact Us

Tell us what you need — a quote, a verification, or just a question about working with Chinese suppliers. We reply within one business day.

Prefer email? Write to hello@certichina.com

Direct email

hello@certichina.com

Response time

Within 1 business day — usually faster. We work Shenzhen hours (GMT+8) and schedule calls to fit your timezone.

What happens next

  • We confirm scope and feasibility
  • You get a fixed written quote
  • Work starts only after you approve