U.S. issues preliminary anti-dumping tariffs on Korean chemical materials

The U.S. Department of Commerce has decided to impose preliminary anti-dumping duties of up to 65.72 percent on certain chemical materials imported from South Korea. This ruling affects two Korean companies exporting monomers and oligomers to the United States. The investigation was initiated six months ago at the request of a U.S. chemical producer.

The U.S. Department of Commerce announced on Wednesday (U.S. time) its preliminary affirmative determination to impose anti-dumping duties ranging from 10.94 percent to 65.72 percent on monomers and oligomers imported from South Korea and Taiwan. This affects two Korean companies exporting these chemical materials to the United States, according to Seoul's Ministry of Trade, Industry and Resources.

The investigation began about six months ago, prompted by a request from a U.S. chemical producer. The preliminary margins mark a significant reduction from the 137 percent to 188 percent dumping margins initially alleged by the petitioner, the ministry noted. It plans to closely communicate with the affected companies to ensure fair treatment in the department's final ruling expected in May.

This development could impact South Korea's chemical exports, though the final outcome remains pending.

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Illustration depicting U.S. customs implementing 15% tariff on South Korean autos per trade deal, with flags, documents, and investment symbols.
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U.S. implements 15% tariff on South Korean autos retroactive to November 1

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The Donald Trump administration posted a notice on the Federal Register implementing tariff elements of the South Korea-U.S. trade deal. It reduces duties on Korean autos from 25% to 15%, retroactive to November 1. The move follows Seoul's pledge to invest $350 billion in the U.S.

Concerns are growing over Korean companies' operations in Mexico after the country approved tariff hikes of up to 50 percent on products from Asian nations without a free trade agreement. The measures affect machinery, auto parts, and electronic components, which make up about 30 percent of Korea's exports to Mexico. However, the industry ministry assessed that the impact will be limited due to Mexico's tariff reduction programs for intermediate goods.

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U.S. President Donald Trump announced plans to raise tariffs on South Korean automobiles, pharmaceuticals, lumber and other goods from 15 percent to 25 percent, citing delays in Seoul's implementation of a bilateral trade deal. Republicans have linked the move to South Korea's probe into U.S.-listed e-commerce firm Coupang, though Trump later signaled room for negotiation. Seoul denies any connection and is dispatching officials for talks.

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South Korea will begin preliminary reviews of potential investment projects in the United States as its National Assembly prepares legislation to implement investment pledges under a trade deal. Finance Minister Koo Yun-cheol emphasized the need to avoid misunderstandings with the US during this process. The move comes amid threats of higher tariffs from Washington.

South Korea's exports surged 50.4 percent year-on-year to $53.3 billion in the first 20 days of March, driven by strong semiconductor demand. Korea Customs Service data showed a trade surplus of $12.1 billion for the period.

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South Korean stocks traded sharply higher late Wednesday morning, buoyed by US President Donald Trump's conciliatory remarks on a trade deal, which eased investor worries over potential tariffs. The benchmark KOSPI index rose 1.43 percent, setting the stage for a new high.

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