They may have a “U.S. addresses” but Facebook suggests they’re in Pakistan. They have awards logos on their own website from 2020 (the web site didn’t exist until 2024). You'll find very poor evaluations on copyright regarding their modifying services. We couldn’t find the highlighted book on their homepage on https://maplepublishers.com/blog/why-should-you-trust-maple-publishers-to-publish-your-next-book/