The People’s Republic of China has decided not to apply its across-the-board 125% tariffs on certain goods that it imports from the US.

China’s government has exempted some US imports that the country would struggle to immediately source from elsewhere from its retaliatory tariffs, people familiar with the matter said.
Chinese authorities have told some importers of American goods that they would waive the most recent 125% increases in tariff rates for certain US imports. Those products include certain semiconductors and chipmaking equipment, medical products, and aviation parts, the people said.

These, then, are precisely the goods that we should cut off from exporting to the PRC.

On the other hand,

The Trump administration, similarly, announced exemptions on its “reciprocal tariffs” for China-made smartphones, laptops, and other electronics earlier this month, a recognition of the US’s reliance on China for such goods.

This is a mistake if the purpose is anything other than a negotiating tactic. There is a critical difference between the two sets of goods. The goods the PRC is exempting are critical components and component-making goods whose cutoff would severely impact that nation’s ability to make downstream products. The goods the Trump administration is exempting are finished products. Their supply chains can be adjusted to flow from non-PRC sources, including domestic, an adjustment that might be difficult, but an adjustment that both is eminently possible and is absolutely necessary: we should never have ourselves dependent on an enemy nation for such goods.