Taiwan's TSMC (2330.TW), the world's largest contract chipmaker and a major Apple supplier, dropped about 0.7%, outpacing a fall of about 0.3% in the benchmark index (.TWII).
China could well expand its curbs on officials' use of iPhones, said Allen Huang, executive director of Mega International Investment Services Corp in Taipei.
In China, Luxshare Precision Industry (002475.SZ), maker of connector cables for the iPhone and MacBook as well as AirPods, which also owns factories capable of making iPhones, fell 1.5%.
Japanese chip equipment maker Tokyo Electron (8035.T) dropped 4% on Friday.
Nearly a fifth of Apple's revenue is generated in China, where thousands of workers are employed by the company and its suppliers.
Persons:
Ann Wang, Taiwan's TSMC, Allen Huang, Huang, Tim Cook, Ben Blanchard, Jeanny Kao, Brenda Goh, Sam Nussey, Edmund Klamann, Clarence Fernandez
Organizations:
Taiwan Semiconductor Manufacturing, REUTERS, Rights, Apple, company's, Staff, Reuters, ASE Technology, Co, Largan, Mega International Investment Services Corp, Huawei Technologies, Luxshare Precision Industry, Huawei, Tokyo, Thomson
Locations:
Hsinchu, Taiwan, Rights TAIPEI, China, outpacing, Taipei, iPhones, Beijing, Shanghai, Tokyo