They may have a “U.S. addresses” but Facebook suggests they’re in Pakistan. They have awards logos on their Internet site from 2020 (the website didn’t exist right up until 2024). There are bad critiques on copyright about their editing services. We couldn’t find the highlighted book on their own homepage https://maplepublishers.com/blog/4-mandatory-services-you-need-before-self-publishing-a-book/