The US's imposition of a 104% tariff on China has led to global market fluctuations, and TSMC is facing heavy penalties due to the Huawei chip investigation.

On April 9, 2025, the United States imposed a 104% tariff on Chinese goods, escalating the US-China trade war and causing global market fluctuations. Chinese A-shares and Hong Kong stocks rebounded due to support from Chinese government funds, while US stocks fell after initially rising at the opening. TSMC is being investigated by the US Department of Commerce for allegedly allowing its chips to be used in Huawei products and may face fines exceeding $1 billion.
Key Updates
04/09 01:08
The US's imposition of a 104% tariff on China has led to global market fluctuations, and TSMC is facing heavy penalties due to the Huawei chip investigation.
On April 9, 2025, the United States imposed a 104% tariff on Chinese goods, escalating the US-China trade war and causing global market fluctuations. Chinese A-shares and Hong Kong stocks rebounded due to support from Chinese government funds, while US stocks fell after initially rising at the opening. TSMC is being investigated by the US Department of Commerce for allegedly allowing its chips to be used in Huawei products and may face fines exceeding $1 billion.
US Tariff Policy Raised to 104%, China Vows Retaliation
The White House Press Secretary Karoline Leavitt announced on April 8 that starting from 12:01 AM Eastern Time on April 9, an additional 84% tariff will be levied on all Chinese imports, adding to the previously implemented 20%, bringing the total tariff rate to 104% Source: CBS News. This move is in response to China's announcement of a 34% retaliatory tariff on April 4. President Trump stated that if China does not withdraw its retaliatory measures, an additional 50% tariff will be imposed on Chinese imports.
China's Ministry of Commerce responded firmly, stating they will "fight to the end," and from April 10, will impose a 34% tariff on US goods, covering coal, agricultural products, energy, and other imports Source: Holland & Knight.
A-shares and Hong Kong Stocks Rebound with "National Team" Support
Despite the escalating trade war, A-shares and Hong Kong stocks rebounded with the support of Chinese official funds. On April 8, the Shanghai Composite Index rose by 1.58%, the Shenzhen Component Index increased by 0.64%, and the ChiNext Index rose by 1.83%; the Hong Kong Hang Seng Index rose by 1.51%, and the Hang Seng Tech Index surged by 3.79% Source: ETtoday.
China's four major "National Team" funds, including Central Huijin, China Chengtong, China National Gold, and China Electronics, announced on the 8th that they would increase their holdings of Chinese stock assets, supported by refinancing from the People's Bank of China. According to statistics, 75 listed companies have issued buyback announcements, and 20 companies have announced increased holdings, with total capital input exceeding 10 billion yuan Source: ETtoday.
US Stocks Surge at Opening, Then Plummet as All Four Major Indices Fall
US stocks on April 8 initially surged in early trading due to market hopes for tariff negotiations, with the Dow Jones Industrial Average soaring by 1,461 points, a gain of 3.85%. However, as the White House confirmed the tariff policy would take effect on the 9th, market sentiment shifted sharply, and the Dow ended down 320.01 points (-0.84%), closing at 37,645.59 points Source: NOWnews.
The S&P 500 Index fell by 79.48 points (-1.57%), closing at 4,982.77 points, marking the first time in a year it fell below 5,000 points. The Nasdaq Index dropped by 335.35 points (-2.15%), closing at 15,267.91 points. The Philadelphia Semiconductor Index plunged by 132 points (-3.57%), closing at 3,562.94 points Source: CTWANT.
TSMC Under US Investigation, Faces Potential Fine Over $1 Billion
TSMC (Taiwan Semiconductor Manufacturing Company) is under investigation by the US Department of Commerce due to suspicions that its manufactured chips ultimately ended up in Huawei's AI server processor Ascend 910B. According to reports from Reuters and Tom's Hardware, the chip was commissioned for production by Chinese company Sophgo and matches the chip design used in Huawei products Source: Tom's Hardware.
Since TSMC uses manufacturing equipment containing US technology, it is subject to US export control regulations even if produced in Taiwan. If violations are confirmed, the fine could amount to twice the transaction value, estimated to exceed $1 billion. A TSMC spokesperson responded that the company has stopped supplying Huawei since September 2020 and is cooperating with the US Department of Commerce investigation Source: MoneyDJ.
Following this news, TSMC's ADR fell by 3.28% on April 8, closing at $141.37, marking a new low for the year Source: CTWANT.
References
- White House says 104% tariff on China will take effect Wednesday
- China's Comprehensive Retaliation Against U.S. Tariffs | Insights | Holland & Knight
- 美104%高關稅衝擊 陸國家隊領跑!百間國央企接力幫A股打強心針 | ETtoday大陸新聞 | ETtoday新聞雲
- 美股開盤大漲後翻黑 標普失守5000點大關
- 美開徵中國104%關稅!美股開盤強勁後翻黑 標普4.05%漲幅全蒸發
- TSMC faces $1 billion US fine for making chips for blacklisted Huawei
- 台積電晶片流入華為手中、傳美擬罰款10億美元
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