Manufacturing in South Korea

South Korea's major export industries include semiconductors, automobiles, and shipbuilding. Other major industries in South Korea are electronics, telecommunications, chemicals, and steel. The country's manufacturing output is the sixth highest in the world. Well-known Korean manufacturing and tech companies include Hyundai Motors, Samsung Electronics, LG Electronics, Kia, SK Hynix, Celltrion, Posco, Krafton, Hancom, and NCSoft.

Steel
The steel industry plays a key role in the South Korean economy as it is the material for major industries such as automobiles, shipbuilding, and construction. In South Korea, the steel industry's GDP is 1.5 percent of all industries, and 4.9 percent of the manufacturing industry. In 2016, steel exports were $27.7 billion and imports were $19.4 billion.

As of 2021, POSCO was the world's seventh largest producer of steel. Hyundai Steel was the world's 18th largest producer of steel.

Major South Korean steel companies include:
 * Dongkuk Steel
 * Posco
 * Hyundai Steel

Shipbuilding
The South Korean shipbuilding industry holds the world's largest market share, winning 58% of the orders for high value-added ships orders and 70% of large LNG carriers ordered in 2022. Also the country's shipbuilders accounted for 62% of the world's orders, according to an October 2023 survey. Even in the eco-friendly ship market, the country has won more than 50% of the world's 26.06 million CGT orders. The country won 54% of the orders for LNG-powered ships.

Major South Korean shipbuilding companies include:
 * HJ Shipbuilding & Construction
 * STX Corporation
 * Samsung Heavy Industries
 * HD Hyundai Heavy Industries

Shipping
Busan Port in southern South Korean city, Busan, is the world's sixth largest container port. Hyundai Merchant Marine remains eighth in the world with a 3.1% share in the global container market.

Major South Korean shipping companies include:
 * Pan Ocean
 * Kobee
 * Hyundai Glovis
 * HMM
 * Hanjin Shipping
 * EUKOR
 * Chonghaejin Marine

Biotechnology and pharmaceutics
In the South Korean pharmaceutical industry, exports of finished products, pharmaceutical substances, and technology are steadily increasing. The total export of Korean drugs sold in 188 countries in 2016 was $3.12 billion, an increase of 6% compared to 2015. In 2017 alone, eight technology transfers were made, with $1.23 billion in technology exports.

South Korea is a global biopharmaceutical powerhouse with human resources and infrastructure equipped with clinical research capabilities and IT platforms. Korea ranks fourth in biopharmaceutical technology after the United States, the EU, and Japan.

President Yoon Suk Yeol announced goal to raise the production volume of the bio industry to 200 trillion won by 2035.

Oil and gas and petrochemical
The petrochemical industry is a key industry that plays an important role and export, accounting for 6.1% of South Korea's total manufacturing production, 4.4% of added value, and 8.2% of exports.

South Korean petrochemical companies raised their forecast for Ethylene production capacity in 2018 to 14.03 million tons by 2023 through a series of investment plans based on their positive performance in recent years to maintain their competitiveness in the global market.

Major South Korean petrochemicals companies include:
 * LG Chem
 * Hanwha Solutions
 * Lotte Chemical
 * Kumho Petrochemical

Oil refining
South Korea is the fifth-largest country with refining capacity, capable of refining almost 3.6 million barrels of oil a day as of 2021. The country produces a wide range of petrochemicals, from fuel oil to lubricating oil, and has several large petrochemical companies.

Major Sohth Korean oil refining companies include:
 * SK Energy
 * GS Caltex
 * S-Oil
 * Hyundai Oil Bank

Motor vehicles and machinery
The Korean automobile industry produced 3.51 million units in 2020, ranking fifth in the world after China, the United States, Japan, and Germany. In addition to automobile production, parts, materials, sales, repair, and service utilization play a pivotal role in the South Korean economy.

South Korea's major global automakers are Hyundai Motor, Kia and Genesis, one of the world's three largest automakers in terms of sales.

The auto parts industry is also important to South Korea, with nine South Korean companies listed on the list of the top 100 auto parts companies based on sales in 2020.

Major South Korean auto parts makers include:
 * Hyundai Mobis
 * Hyundai Transys
 * Hyundai Wia
 * Hanson Systems
 * Mando
 * SL
 * Yura Corporation
 * Seoyon E-Hwa
 * Hyundai Kefico

Aerospace
Korea Aerospace Research Institute, KARI, developed the first-stage solid-propelled science rocket (KARI KSR-1, 1993), the second-stage solid-propelled medium-sized science rocket (KARI KSR-2, 1998) and the liquid-propelled science rocket (KARI KSR-3, 2002). It developed the Naro space launch vehicle, which was successful in launching in 2013, and gained know-how and experience in space launch vehicles. Currently, South Korea has developed a three-stage Korean rocket (Nuri) and launched a 1.5-ton application satellite at an altitude of about 600-800 kilometers into solar synchronous orbit. With the development of the Nuri space rocket, South Korea has finally secured three elements of space development: a satellite, a projectile, and a launch site.

Semiconductor
As of 2022, South Korea accounted for 60.5% of the global memory semiconductor market, with a DRAM market share of 70.5% and a NAND market share of 52.6%. South Korea is continuously focusing on R&D and investment to maintain its competitive advantage. In addition, South Korea is pushing to expand its foundry market share based on ultra-fine processing technology. The country accounts for 17.3% of the global foundry market.

Major South Korean semiconductor companies include:
 * Seoul Semiconductor
 * Samsung Electronics
 * SK Hynix

Electronics
In terms of industry share in South Korea's exports in 2015, electronics, including semiconductors, wireless communication devices, flat panel displays, computers, and home appliances, topped the list with 27.6 percent, followed by automobiles and auto parts with 13.5 percent.

LG ranked first in the OLED TV market in the first quarter of 2023, accounting for about 60% of the total shipments. The LG OLED TV is currently sold in more than 130 countries, making it the most widely available OLED TV in the world.

Many of the world's major electronics companies are based in South Korea, includes:
 * Samsung Electronics
 * Samsung SDI
 * LG Electronics
 * LG Display
 * LG Energy Solution
 * SK Hynix
 * Winia Electronics