It is the largest manufacturing base in Chungnam.
Samsung Electronics' semiconductor division Onyang Campus,
Samsung Display's Asan Campus (formerly Tangjeong Campus) and Corning Precision Materials are located in Tangjeong, and in Inju-myeon, Hyundai's Asan Plant and the surrounding Inju Industrial Complex are active in automotive manufacturing. Samsung Electronics and
Hyundai Motor, as well as
Hyundai Mobis,
KCC, and Hanwha Group operate factories in Asan. In addition to these large factories, Asan is also home to many medium-sized companies, including Sindorico, HL Mando, Yusung Corporation,
Nongshim, and Dongseong Pharmaceuticals. Agriculture is present, but its share has been declining over the years, and unlike its neighbours
Cheonan,
Seosan,
Gongju, it does not have a standout speciality. Rice is the most prolific speciality, with sweet potatoes, potatoes, soybeans, wheat, barley, corn, Chinese cabbage, cucumbers, tomatoes, green onions, pears, grapes, and apples, and radishes, carrots, ginseng, and leaf tobacco are also grown, but not as much as the previous ones. The livestock industry is active due to the development of hilly terrain suitable for livestock farming, and as in other regions, there is a trend of increasing scale and professionalisation, with fewer small-scale livestock farmers but more animals. In terms of fisheries, fishing and salt-making used to take place along the coast of Asan Bay, but after the construction of the Asan Bay Sea Wall and the Sapgyo Creek Sea Wall, fishing gradually declined and salt-making disappeared. Today, inland fishing is mainly based on Asan Lake, and eel farming is carried out in Sinchang-myeon and Seonjang-myeon. ==Companies with factories in Asan==