Thanks so much to reader @pizzzakitty on Instagram for letting me know that a handful of Tony Moly products are now on the Ulta website (nine total). I don't know if that's going to grow, but what's great is that these products are not considered prestige, so you can use your Ulta coupons (like this one, and also the online-only code 205730 for $5 off $15+ valid now through 8/9).
@pizzzakitty also mentioned that select Tony Moly products are now popping up in the grab & go section at Ulta (next to the registers), so keep an eye out for those next time you're waiting in line at your local Ulta. I do not know if Ulta plans to add a permanent Tony Moly display in-store, but that's something to keep an eye on if you're a Korean beauty fan.
Thanks again, @pizzzakitty, for the great info!