They may have a “U.S. addresses” but Facebook suggests they’re in Pakistan. They have got awards logos on their website from 2020 (the website didn’t exist till 2024). You'll find very poor evaluations on copyright about their modifying services. We couldn’t locate the highlighted book on their own homepage on https://maplepublishers.com/blog/5-tips-to-find-the-best-self-publishing-companies-uk/