Pomegra
The US and China agreed to cut tariffs on $60 billion of goods, yet Chinese stocks fell to one-year lows as tech-ban fears outweighed the trade relief.
- The US and China will each cut tariffs on $30 billion of "non-sensitive" goods, a $60 billion package announced after the Trump-Xi summit.
- China's CSI 300 fell as much as 2.4% on Monday to a one-year low, led by chip and optical-component stocks.
- Rare earths and AI-linked technology were left off both tariff lists and still face significant duties.
Lead
Chinese equities dropped to their lowest level in a year on Monday, September 28, even as Washington and Beijing published lists of goods that will get lower tariffs under a "30-for-30" framework. For financial markets today, the message was that a modest trade truce does not offset a widening technology dispute. The CSI 300 Index, the onshore benchmark, fell as much as 2.4%, with chipmakers and optical-component suppliers leading the decline.
What Did the US and China Agree On?
The two countries agreed that each may import $30 billion of non-sensitive goods from the other at reduced tariff rates, for a combined $60 billion. The White House announced the framework late Sunday, following the summit between President Donald Trump and Chinese leader Xi Jinping in Washington on September 25. China's Ministry of Commerce confirmed the arrangement on Monday and said it would help stabilize bilateral trade.
China's list covers about 1,600 US products, including corn, wheat, frozen meat, seafood, wood products, cosmetics, poultry, dairy and medical devices. The US list is far shorter, at 77 Chinese items such as microwave ovens, fish hooks, artificial flowers and weighing scales, alongside toys and holiday decorations. The US Trade Representative said the deal would improve market access for about 30% of US exports to China.
The package sits on top of an existing pause on escalating tariff measures that runs to January 10. Trade specialists describe the lists as too small to change overall trade flows or consumer prices in a meaningful way. Two further meetings are planned: the APEC summit in Shenzhen in November and the G20 in Miami in December.
Why Did Chinese Stocks Fall to a One-Year Low?
Chinese shares fell because investors focused on new US technology restrictions rather than the tariff relief. Three pressures hit at once.
- Component legislation. A bipartisan group of US senators introduced a bill that would bar the federal government from using optical transceivers made by Zhongji Innolight (300308.SZ) and Eoptolink Technology (300502.SZ) in sensitive systems. Optical transceivers move data inside AI data centers, and some facilities need millions of them.
- Sanctions risk. Concern that the two largest Chinese makers could face wider US sanctions added to the pressure. Eoptolink fell 8% in Shenzhen. Innolight fell 9% in Shenzhen and 12% in Hong Kong.
- Nvidia competition. A report that Beijing could let local companies buy chips from Nvidia (NVDA) raised concern about competition for domestic chipmakers. Cambricon Technologies and GigaDevice Semiconductor each fell at least 5%.
Sector moves were sharp. The CSI 300 Telecommunication Services Index dropped more than 6% to a two-month low, and the Star Composite was down nearly 4% at the open. The Shanghai Composite opened 0.26% lower at 3,878, while the ChiNext board slipped 0.65%.
Why Did Hong Kong Hold Up Better?
Hong Kong held up better because its market is more diversified and less exposed to the mainland's domestic chip and optical names. The Hang Seng Index opened 0.18% higher at 24,554, and the Hang Seng Tech Index rose 0.29% to 4,324. The gap between the two markets showed how concentrated the selling was in mainland technology.
Thin liquidity also played a part. Mainland markets close for a week-long holiday from October 1, and traders cut risk ahead of the break.
Market Reaction and Strategic Context
The sell-off reflects a split in US-China policy. The tariff track is being managed through leader-level diplomacy and limited concessions on agriculture, energy and consumer goods. The technology track is driven by Congress and export controls, and it targets exactly the areas the tariff lists exclude: AI hardware, advanced chips and data-center supply chains.
The Trump administration has approved Nvidia H200 exports to China with conditions. Trump has said Beijing chose not to approve purchases because it wants to develop its own chips. That leaves Chinese chipmakers dependent on domestic policy and exposed to shifts in Washington.
What Comes Next for China's Tech Sector and Trade Talks?
The next test is whether the optical-component bill advances and whether the sanctions concern turns into formal Commerce Department action. Markets will also watch whether the January 10 tariff pause is extended, and whether the November and December summits produce anything covering technology as well as agriculture and consumer goods.
Over the next three to twelve months, mainland technology stocks are likely to stay sensitive to US legislative and export-control headlines. Tariff relief on soybeans, toys and microwaves does not offset that.
Outlook
The $60 billion tariff package stabilizes trade at the margins, but it excludes rare earths and AI technology, the areas where the dispute is most intense. Chinese equities are pricing that gap. With mainland markets shut for the October holiday, the next signal will come when trading resumes and when Washington moves on the optical-transceiver bill.
