With the influx of Chinese tourists and their spending at duty-free stores snowballing, Lotte Group and Samsung Group have locked horns in the services and retail industries, striving to win the favor of Chinese consumers. Their affiliates -- Hotel Shilla, with Samsung Group, and Hotel Lotte as well as Lotte Duty Free -- have been placed at the forefront to win the hearts of Chinese tourists, who have been known to spend an average of $2,094 during their stay, according to data from the Korea Tourism Organization.