LAX to PVG ( 2-hr layover in ICN) to ICN to LAX itinerary

There is 2 hour layover in ICN from LAX to Shanghai flight. After 4 day trip to Shanghai, I am planning to travel in Korea(ICN) for three days before flying back home to LAX. Will I be qualified for "144 hour transit visa" since there's two hour layover in ICN?