President Yoon Suk Yeol speaks during a meeting to discuss economic and security implications of a second Trump administration at the presidential office in Yongsan District, Seoul, Nov. 10. Yonhap

President Yoon Suk Yeol on Sunday called for the launch of finance, trade and industry consultative bodies to brace for the potential impacts of former U.S. President Donald Trump's return to the presidency.

Yoon made the call during an economic and security meeting with ministers and senior aides to discuss preparations before Trump assumes office in late January.

"International markets have already begun responding based on anticipated policy directions even before the new U.S. administration takes office, so the government should monitor the markets closely and ensure thorough preparations," Yoon said.

He emphasized the new U.S. administration's shift in policies could bring significant changes to the global economy and security landscape.

"Consequently, this will directly impact our economy and security, so thorough preparations are essential," he added.

Yoon anticipated positive momentum for the shipbuilding and petrochemical sectors under Trump's energy policies and highlighted the importance of strengthening cooperation in advanced industries, including artificial intelligence, biotechnology and quantum technology.

During a phone conversation with Yoon on Thursday, Trump expressed the U.S.' interest in working with South Korea in the shipbuilding industry, particularly in naval shipbuilding, exports and maintenance.

"In defense, based on our robust South Korea-U.S. alliance, we must maintain a strong deterrent against North Korea and be prepared to lead in promoting genuine peace and prosperity in the Asia-Pacific region," Yoon said, noting significant structural changes in security could arise.

A second Donald Trump administration is expected to bring shifts and unpredictability to the U.S.-South Korea alliance, potentially increasing pressure on Seoul to take on a larger share of the burden as a U.S. ally.

Another key focus will be how Trump might address North Korea's denuclearization, especially amid growing skepticism about Washington's commitment to this goal, as well as his approach to Russia's war in Ukraine, where North Korean troops have been sent to support Moscow.

Yoon said he and Trump agreed to meet at an early date during the phone call to engage in further discussions. (Yonhap)