It's been a week since the Trump administration raised tariffs from 10 percent to 25 percent on $200 billion worth of Chinese exports, and tech companies are still grappling with the consequences. Adding to the confusion are possible US tariffs on an additional $300 billion worth of goods, and China's own retaliatory tariffs on US exports.

The existing tariffs cover a wide range of goods, but few finished consumer electronics. The next round could include laptops and smartphones, referred to as “automatic data processing machines” in the government’s proposal. But even if finished electronics get a pass, existing tariffs on computer components such as power supplies and printed circuit boards could increase costs for consumers.

The effects could go beyond higher consumer prices. For years, the US and China have been closely linked, particularly through the supply chain for electronics, many of which are assembled in China. The trade war threatens to disrupt that relationship. Beijing has already announced increases in its own tariffs on US goods, which gives companies in other countries an edge in selling to Chinese consumers.

It's still possible that the US and China could work out a deal that largely preserves the status quo. But Brian Keare, an executive at business analytics company Incorta, says the failure to reach a deal last week led to a growing fear among the companies he works with that the tariffs could continue for years.

Meanwhile, the US continues to clash with China over security issues. The US has long worried that the Chinese telecommunications giant Huawei, which makes gear used by telecom networks around the world, could assist in Chinese spying efforts. The US has also accused the company of stealing intellectual property and violating sanctions against Iran. This week the US Department of Commerce added Huawei to a list of companies that pose a national security threat, meaning it will have to seek permission from the US government before using US-made technologies, including chips made by US companies like Qualcomm or operating system software from Google.

Several chipmakers, including Qualcomm, Intel, and Broadcom have told employees they will not supply chips to Huawei until further notice, Bloomberg reports. Multiple news reports say Google has revoked Huawei's license to use the Play Store app market and other Google mobile applications such as Gmail, limiting the company to the open source version of the Android operating system.

It's too early to say how drastic the results of the conflict will be. Keare says companies he works with are still assessing the impacts of the increased tariffs on their businesses. "It quickly morphs into questions about absorbing the tariffs versus passing the prices on to customers," he says. "Dozens and dozens of actions might affect the outcome." For example, some companies might have to give customers advance notice of price increases, limiting their ability to raise prices in the short term.

One concern is that the tariffs will help foreign competitors. "Samsung does its chip fabrication and higher-end phone assembly in Korea, with low-end phones assembled in Vietnam," says Jason Dedrick, a professor at the School of Information Studies at Syracuse University. "So in the short run, Samsung is hurt less than Apple by tariffs on assembled smartphones, meaning that US policy might hurt a US company relative to its biggest non-US competitor."

Even companies that do manufacture in the US could be affected by the tariffs. Intel, for example, makes many of its chips in the US. But if the US tariffs lead to higher prices for the phones, laptops, and other gadgets that use those chips, Intel’s sales could suffer.