Nongshim, a snack-food company, created Nongshim Kellogg’s, a joint venture with Kellogg’s. Alongside Kellogg’s mainstays, they sell some additional local multigrain varieties that frankly taste better than what we get in the US.
What confuses me is that I thought Chex used to be a Ralston Purina product. I remember it romanized as 퓨리나. I’m guessing Nongshim acquired the rights.
Here’s the local Wiki article on the incident. Run your favorite translator on it.
Maybe it’ll make its way to the US to join as the latest quarantine Korean snack-food fad alongside Chappaguri and Dalgona Coffee