Yambol had a thriving industrial past at the beginning of the 20th century, with notable production of woollen blankets, bakeries, and crafts like shoemaking. Several key industries developed in Yambol in the postwar period, including the SHC "Dimitar Dimov" petrochemical plant (1968), the "Sila" agricultural machinery factory (1948), the highly developed food industry like the "Yagoda" canning factory (1976), and the large modern textile factory "Tundzha" (1962-1976). Other important industries that still operate include the "HES" hydraulic equipment company (1968), the oldest winery "Vinprom Yambol" (1924),