Chinese regulators met with managers at Microsoft's offices in four cities including Beijing and Shanghai in preparation for a potential probe into whether the company engaged in monopolistic practices, Sina.com said.
State Administration for Industry and Commerce officials also called on Microsoft in Guangzhou and Chengdu on Monday, the news portal said on its website, citing a Microsoft China employee it didn't identify.
Regulators may start a probe into Microsoft's possible monopoly in China's operating system market, Sina.com added, citing another unidentified person. China is stepping up scrutiny of US technology companies, and excluded Windows 8 from a government purchasing order in May. US tensions with China escalated after prosecutors indicted five Chinese military officers for allegedly stealing secrets of American companies.
"Microsoft is happy to answer the government's questions," the company said in an emailed statement yesterday, without confirming whether authorities had visited its local offices in China.
Read also: US pushes for China cyber-spying crack down