Samsung is expanding its Pyeongtaek chip plant as part of South Korea’s new investment strategy.
Korea investment boom companies like Samsung and Hyundai recently announced major domestic investments following the US-South Korea trade agreement. The agreement reduced tariffs and increased investment. Companies now want to strengthen the domestic economy. We’ll explore all the details in this article. We’ll discuss the agreement’s background, the companies’ plans, and the impact. Trade agreements change the world economy. The new agreement between the US and South Korea, finalized by the Trump administration, is an example of this. South Korea promised to invest $350 billion in the US. In return, the US reduced tariffs. However, this caused concern in South Korea. People feared that investment would flow out. Therefore, companies are increasing domestic investment. Samsung will invest 450 trillion won, while Hyundai will invest 125 trillion won. This news came on November 16, 2025.
Background of the US-South Korea Trade Agreement
The US and South Korea have strong relations and are allies. However, trade disputes do occur. In 2025, the Trump administration signed a new agreement. It began in August. The final agreement was reached in November, but the focus remains on tariffs. The US reduced tariffs on South Korean cars from 25% to 15%. The same applies to auto parts. The terms on semiconductors are good. They won’t be better than those of competitors, but at least equal. South Korea also promised investment in the US. A total of $350 billion. $150 billion of this will be invested in shipbuilding, and the remaining $200 billion in other industries, limited to $20 billion per year.
This will maintain financial stability. The agreement avoided high tariffs. However, there are concerns in South Korea. President Lee Jae-myung met with business leaders. They promised to ensure that US investment would not reduce domestic investment. Companies agreed. They would increase domestic investment. Despite this, the agreement is good for the economy. However, there are challenges. The industry is divided. Some dislike the tariff hike. The 15% tariff on vehicles has been sharply increased.
Samsung’s Investment Plan on Korea investment boom
Samsung is a major electronics company in the world and a leader in semiconductors. The company announced a 450 trillion won ($310 billion) investment, but it’s over the next five years. The focus is on AI. They will build a new chip production line in Pyeongtaek. This is the P5 plant, with mass production starting in 2028. Demand for AI has increased, requiring server and memory chips. Samsung Chairman Jay Y. Lee stated that they will increase domestic investment, create jobs for young people, and work with small companies. The company will build AI data centers in South Jeolla Province and Gumi.
This will drive regional development. Samsung’s history of growth outside Seoul is strong. Started in 1938, it is now a global brand with a 20% market share in semiconductors. Benefiting from the AI boom, but there are challenges. Demand decreased in 2023. The plant was delayed. Now, recovery is underway. This investment will boost the economy, increase jobs, and advance technology.
Hyundai’s Investment Plan on Korea investment boom
Hyundai is South Korea’s largest automaker. It manufactures cars. The company announced an investment of 125.2 trillion won ($86.3 billion) from 2026 to 2030. The focus is on R&D and new technologies like AI, robotics, and self-driving cars. Hyundai Group is also a major player in shipbuilding. They will increase domestic research and invest in the US through agreements. But they will not forget the domestic investment announced at the President’s meeting. Hyundai is happy with the US tariff cut. Car exports will be easier. But domestic production will remain strong. Hyundai’s history dates back to 1967. Now, it is going global. Investing in electric vehicles. AI will make cars smarter. This plan will increase employment and bring innovation. It will contribute to the economy.
Plans of other companies
SK Group announced an investment of 128 trillion won ($88.3 billion) until 2028, with a focus on AI, said SK Chairman Cheo Tae-won. The agreement reduces uncertainty and will increase domestic investment. Hanwha Ocean and HD Hyundai are shipbuilders. They will increase domestic investment and support US shipbuilding. The agreement is crucial. The total investment is estimated at $550 billion. Together, Trump emphasized shipbuilding. South Korean companies will contribute to the US, including Hanwha Ocean and HD Hyundai. The agreement will benefit both countries, providing investment to the US and a market to South Korea. However, domestic employment is crucial. Therefore, the announcement of these investment plans will allay concerns. Investment will not flow abroad. Domestic investment will remain strong.
Discussing the economic impact: Korea investment boom
This investment will boost South Korea’s economy. GDP will increase. Jobs will be created, providing opportunities for young people. Leadership in AI and tech. But there are challenges. Balance with US investment and currency stability. Also, consider the global context: the China-US trade war. South Korea is in the middle. The agreement offers benefits, but tariffs could change. Companies should be prepared, experts say. This is a positive step. Domestic focus is good, but implementation is crucial. Government support, challenges and future benefits from the agreement. But the industry is divided. Some see tariffs as too high. Auto sector affected. Companies adapt. AI is a big future. Samsung and Hyundai invest in it. South Korea becomes a tech hub.





