Chex is an American brand of breakfast cereal currently manufactured by General Mills. It was originally produced and owned by Ralston Purina of St. Louis, Missouri, using the name Chex starting in 1950.[1] The Chex brand went with corporate spinoff Ralcorp in 1994. and was then sold to General Mills in 1997.[2] Rival cereal company Kellogg's has the rights to the Chex brand in South Korea and Singapore.[3]The name "Chex" reflects the "checkerboard square" logo of Ralston Purina.[citation needed]For many years, advertisements for the cereal featured the characters from Charles Schulz's Peanuts comic strip. [Wikipedia]