I think that you should have some extra books on your NC just in case... If you are traveling with your work laptop, then you probably already have VPN software for remote connections to your office. I have not traveled overseas with my NC yet; however, I have traveled to multiple countries with my Sony ereaders. I was able to purchase ebooks just fine via VPN and then transfer them via USB cable to my ereader.
You might want to read this thread link below. It sounds like you will be able to use the Wi-fi on your NC to download any books that you have already purchased in the US that are in your archive. However, you will not be able to purchase any new books over Wi-fi on your NC. You will need to use your laptop & VPN software. Hope that helps! Have fun on your travels to Asia!
https://www.mobileread.com/forums/sho...d.php?t=121121