South Korea is checking the economic feasibility of various items that may come as the result of trade negotiations with the United States to assess the impact of such items on the national economy, government sources said Wednesday.

South Korea will elect a new president on 3 June to replace Yoon Suk Yeol, who was removed from office for placing the country under martial law for six hours in December. The winner will be tasked with managing the political and economic fallout of Yoon's move, which plunged the country in deep turmoil and divided opinions.

South Korea could pay its dues by investing more in its forces, an analyst said, which would allow U.S. troops stationed in the country to focus more on China.

The winner will have the task of dealing with the political and economic fallout from Yoon's action, which has ignited fierce polarisation and plunged the nation into chaos.

South Korea's government pledged more support measures on Wednesday for key export industries, including the biopharmaceutical and auto sectors, which are expected to be hit by U.S. President Donald Trump's sweeping tariffs.