Feb 5 (Reuters) - China's antitrust regulator is

preparing for a possible investigation into Apple's ( AAPL )

policies and App Store fees, Bloomberg News reported on

Wednesday, citing people familiar with the matter.

The development comes a day after China announced a wide

range of measures targeting U.S. businesses including Google

, farm equipment makers and the owner of fashion brand

Calvin Klein, minutes after new U.S. tariffs on Chinese goods

took effect.

The country's State Administration for Market Regulation is

reviewing Apple's ( AAPL ) policies, including its up to 30% commission

on in-app purchases and restrictions on external payment

services and App Stores, the report said.

Shares of Apple ( AAPL ) were down 2.6% in U.S. premarket

trading.

Chinese regulators have been in discussions with Apple ( AAPL )

executives and app developers since last year, as per the

report.

Apple ( AAPL ) and China's antitrust watchdog did not immediately

respond to Reuters' request for comment.

China's State Administration for Market Regulation said on

Tuesday that Google was suspected of violating the country's

anti-monopoly law and that an investigation was initiated in

accordance with the law.

Separately, China's Commerce Ministry said it had put PVH

Corp ( PVH ), the holding company for brands including Calvin

Klein and Tommy Hilfiger, and U.S. biotechnology firm Illumina ( ILMN )

on its "unreliable entity" list.