President Donald Trump, right, speaks as Tim Cook, CEO of Apple, listens during the American Technology Council roundtable hosted at the White House in Washington, D.C.

Shares in China-based Apple suppliers Luxshare Precision Co., Shenzhen Sunway Communication Co., and Suzhou Dongshan Precision Manufacturing all dropped as much as 10 percent. Lens Technology, Universal Scientific Industrial Shanghai, and Suzhou Anjie Technology fell between 6 and 8 percent.

Trump's comment came after Apple told U.S. trade officials on Friday that proposed tariffs by Washington in an escalating trade war with China would affect prices for a "wide range" of Apple items, including the Apple Watch. It did not mention the iPhone.

Shares of Apple suppliers fell across Asia on Monday after U.S. President Donald Trump tweeted that the tech giant should make products in the United States if it wanted to avoid tariffs on Chinese imports.

In Taiwan, camera lens-maker Largan Precision slid nearly 8 percent, Foxconn, formally known as Hon Hai Precision Industry, fell 3.4 percent, while assembler Pegatron dropped nearly 4 percent.

Taiwan's ASE Technology, which counts Apple as one of its top clients, fell 2.9 percent.

Chien Bor-yi, an analyst at Taipei-based Cathay Futures Consultant, said Apple's component supply chain in Taiwan would take a major hit if the United States increased tariffs on Chinese imported products.

"People have concerns about the stock market. It's not a seller's market, but it's also not a buyer's market. No one knows how deep the well is," he said.

The technology sector is one of the biggest potential losers in the $200 billion tariff list proposed by Washington on Chinese imports because the tariffs would make imported computer parts more expensive.

Trump warned on Friday that he was ready to slap tariffs on virtually all Chinese imports into the United States, threatening duties on a further $267 billion of goods.

Hong Kong-listed AAC Technologies fell more than 5 percent. The company supplies acoustic components and haptic technology — which enables users to receive tactile sensations from an interface — for Apple products such as the iPhone, iPad and Apple Watch.

In Japan, Nissha eased 0.4 percent, Japan Display fell 0.7 percent and Sharp dropped nearly 1 percent.

"People are in a bit of a panic today. Looking forward, the focus would be on how the market reacts after Apple releases its latest models," said Kevin Chung, analyst at JihSun Securities Investment Consulting.