List of companies of Haesan

Haesan has a large, diversified economy with firms spanning many industries. Due to relaxed antitrust regulations in the nation, many of the nation's largest firms operate as conglomerates. Many companies also operate as Y.H.C., roughly the equivalent of limited liability corporations in other nations. Y.C. is a rarer limited liability corporation type more akin to a joint stock company, typically afforded significant tax benefits by the government due to its strategically important work.

Largest firms

Corporation	Ticker	Headquarters	2025 Revenues (£ SCT, millions)	Industry	Notes
The Seollim Group, Y.H.C.	SSE: S	Seowon	£253,552	Conglomerate, Electronics, Automotive, Finance	The Seollim Group is a conglomerate and a Y.H.C. most well known for its consumer electronics and smartphone production managed by its largest subsidiary Seollim Electronics. By some metrics, Seollim is the largest smartphone manufacturer in the IDU. Seollim also had subsidiaries which manufacture automobiles (Seollim Auto), in insurance (Seollim Financial), and entertainment (Seollim Arts). The group also controls large stakes in several prominent media and consumer goods companies.
Suri, Inc.	SSE: SURI	Sinju	£134,172	Conglomerate, Heavy Industry, Automotive	Suri, Inc. is a conglomerate primarily focused on heavy and industrial manufacturing. Its largest subsidiary, Suri Heavy Industries, Y.H.C. is the largest manufacturer of commercial ships in the IDU. Suri Motors is Haesan's largest domestic manufacturer of automotives. Suri also has subsidiaries in industrial chemicals, natural gas liquefication, and rare earths mining.
Saerom, Y.C.	SSE: SAE	Anmi	£110,419	Electronics	Saerom, Y.C. is one of the largest producers of microchips in the IDU and is known for its fabrication of special-purpose electronic components. Much of is its business is to domestic manufacturing companies. Saerom was historically a consumer appliances manufacturing firm, but pivoted industries in the early 2000s.
Suryu, Inc.	SSE: SYU	Suyang	£103,676	Conglomerate, Household Appliances, Biotech	Suryu, Inc. is one of the largest manufacturers of household appliances in the IDU, particularly in washers and dryers, in which it is the most prominent brand in the IDU. Suryu is also a notable manufacturer of refrigerators, dishwashers, and heating and cooling systems. Suryu Technologies is a large subsidiary focused on materials innovation and chemical research. Suryu Bio is one of the largest biotech firms in Hesperida, leveraging many Suryu Technologies innovations.
Routiers, Y.C.	BA: ROU	Anfa	£95,501	Petrochemicals	Routiers is a joint-stock company which has rights to roughly 30% of the proven natural gas reserves in Haesan's Gulf exclusive economic area. It also runs a network of petrol stations across Haesan and parts of Laeral.
Jeongmi Group, Y.H.C.	SSE: JM	Suyang	£78,662	Conglomerate, Consumer Goods, Retail	Jeongmi Group, Y.H.C. is a conglomerate primarily focused on the production of consumer goods, including processed foods, furniture, and cosmetics. Jeongmi also operates as a retailer, with its Jeongmi Home stores as large warehouse-style retail outlets selling Jeongmi products.
Astra, Inc.	SSE: AST	Suyang	£72,723	Conglomerate, Telecoms, Energy, Electronics	Astra, Inc. is a conglomerate best known for Astra Telecoms, the second largest satellite-enabled network in the IDU. Astra also maintains other subsidiaries including its green energy division Astra Zap and its electronics and materials innovation branch Astra Spark.
Haejeon, Y.C.	SSE: HJH	Hacheon	£62,739	Utilities	Haesan Jeongi Hoesa, Y.C. commonly known as Haejeon is the largest utility provider in Haesan, powering over 30 million households in southern and central Haesan. The firm maintains dozens of nuclear power plants in the plains provinces, hydroelectric projects including the Eungang Central Dam Complex, and 11 natural gas powerplants.

Notable companies

This is a list of other notable companies in Haesan, including subsidiaries of the corporations listed above.

Corporation	Ticker	Group	Industry	Sector	Headquarters	Founded	Notes
Air Haesan, Y.C.	SSE: AH	–	Consumer services	Airline	Hanyeong	1922	Flag carrier of Haesan
Air Maritimes	SSE: SAA	–	Consumer services	Airline	Altina	1971	Former flag carrier of the Republic of Sarena
Albarine Shuttle	SSE: ALSH	–	Consumer services	Airline	Suyang	2003	Short-haul and private operator
Astra Telecoms, Y.C.	SSE: AT	Astra	Telecommunications	Mobile telecommunications	Junyeol	2010	Satellite internet and mobile provider
Astra Spark	SSE: ASPA	Astra	Industrials	Construction and materials	Suyang	2021	Engineered materials design firm and electronic components innovator
Astra Zap	SSE: ZAP	Astra	Industrial	Renewable energy	Suyang	2018	Manufacturer of green energy equipment and energy grid consultancy
Cerise, Y.H.C.	BA: CER	–	Consumer services	Airline	Anfa	1996	Budget operator based in northern Haesan
Haecheol, Y.C.	SSE: HCL	–	Consumer services	Rail	Jinyun	1973	National passenger rail operator of Haesan
Jeongmi Dalbit	SSE: JML	Jeongmi	Consumer goods	Food & beverage	Munseong	1951	Processed and snack foods, carbonated beverages and energy drinks
Jeongmi Home	SSE: JMH	Jeongmi	Consumer services	Retail	Suyang	1982	Designs and sells ready-to-assemble furniture, household goods, and various related services
Promethean Air	SSE: PAIR	Air Haesan	Consumer services	Airline	Suyang	2005	Boutique long-haul flight operator, partially-owned subsidiary of Air Haesan (25%)
Seollim Arts	SSE: RGH	Seollim	Consumer services	Entertainment	Suyang	1975	Film studio, game developer, parent company of Seollim's sports teams and the Seollim Guide
Seollim Auto	SSE: SA	Seollim	Consumer goods	Automobiles	Hyangsan	1970	Third largest domestic manufacturer of automotives
Seollim Electronics	SSE: SE	Seollim	Consumer goods	Consumer Electronics	Seowon	1969	Largest subsidiary of Seollim; largest smartphone manufacturer in the IDU
Seollim Financial	SSE: SF	Seollim	Financials	Banking, Insurance	Suyang	1983	Personal banking and insurance (primarily life, home, and auto)
Suri Chemical, Y.H.C.	SSE: SCH	Suri	Basic materials	Chemicals	Seoyeon	1978	Industrial chemicals manufacturer
Suri Heavy Industry, Y.H.C.	SSE: SHI	Suri	Industrials	Industrial engineering	Sinju	1974	Largest individual shipbuilder in the IDU, prominent industrial machinery manufacturer
Suri Motors, Y.H.C.	SSE: SMC	Suri	Consumer goods	Automobiles	Hyangsan	1945	Largest automotive manufacturer in Haesan
Suryu Bio	SSE: BIO	Suryu	Industrials	Biotechnology	Suyang	2007	Largest biotech firm in Haesan
Suryu Technologies	SSE: SYT	Suryu	Industrials	Construction and materials	Suyang	1998	Design and production of engineered materials