Apple Inc is shifting manufacturing of its new Mac Pro desktop computer to China from the United States, the Wall Street Journal reported on Friday, citing people familiar with the matter.

The move comes at a time when the Trump administration has threatened to impose new levies to cover nearly all imports from China and pressured Apple and other manufacturers to make their products in the United States if they want to avoid tariffs.

Last week, Apple asked its major suppliers to assess the cost implications of moving 15%-30% of their production capacity from China to Southeast Asia, according to a Nikkei report.

China is a key market for Apple as well as a major production center for its devices. The company got nearly 18% of its total revenue from Greater China in the quarter ended March.

Apple's Mac Pro, a $6,000 machine used by creative professionals, has been facing waning demand, the Journal said.

"Like all of our products, the new Mac Pro is designed and engineered in California and includes components from several countries including the United States," an Apple spokesman said. "Final assembly is only one part of the manufacturing process."

Apple's decision coincides with the end of tax subsidies that it got for making the desktop in a plant in Texas run by contract manufacturer Flex Ltd, according to the Journal.

The tech giant has tapped contractor Quanta Computer Inc to manufacture the computer and is ramping up production at a factory near Shanghai, the report said .

Quanta did not respond to a request for comment.

Apple's shares were down nearly 1% at $197.64.

© Thomson Reuters 2019