They may have a “U.S. addresses” but Facebook says they’re in Pakistan. They have awards logos on their own Web page from 2020 (the website didn’t exist until 2024). There are inadequate testimonials on copyright about their editing services. We couldn’t locate the highlighted book on their homepage on Amazon. https://maplepublishers.com/blog/how-to-start-your-career-as-a-self-publishing-author-with-maple-publishing/