WASHINGTON — Korea has called on the Office of the U.S. Trade Representative (USTR) to reconsider its proposed tariff on Korea over forced labor concerns, calling the proposal "unwarranted" and "disproportionate" to the Asian economy's relevant circumstances. The Korean Embassy in Washington submitted comments to the office on Monday, as the USTR has proposed 12.5 percent tariffs on Korea and dozens of other economies over their alleged failure to enforce import bans on products made with forced labor. The USTR conducted trade investigations into 60 countries, including Korea, China and Japan, over forced labor concerns under Section 301 of the 1974 Trade Act, as U.S. President Donald Trump's administration seeks to replace "reciprocal" tariffs that were struck down by the Supreme Court in February. "Korea shares the United States' concerns regarding the use of forced labor in global supply chains and the need for its elimination," the embassy said in its comment. "Nevertheless ..., Korea believes that the proposed action against Korea is unwarranted and needs to be revised." The embas