However, the golden era of sugar industry faded through time and in 1993, Tsung Yeh Sugar Factory was forced to close. Since then, it had been struggling to preserve its valuable assets as cultural heritage until the former Tainan County Government designated four buildings, the Japanese Garden, and hundred-year-old camphor trees as Municipal Historic Landmarks in 1999.

It is now a popular venue for the public owning to its historic architecture, cultural atmosphere, and natural ecosystem. The heritage has been transformed and renovated to house various exhibitions and events. Retired sugar-carrying locomotives and stone mills are displayed on the vast green lawns while old camphor trees surrounding the path shape a natural green tunnel in the 4.3 hectare park.