SYDNEY, Australia — A dozen Australian politicians were treated to lavish overseas trips paid for by a Chinese technology company that has been dogged in the West by questions about security and privacy, according to a report released on Tuesday, raising new concerns about Chinese efforts to influence Australia’s lawmakers.

The company, Huawei, was the biggest corporate sponsor of overseas travel for the country’s politicians from 2010 to this year, according to an independent analysis by the Australian Strategic Policy Institute, a think tank based in Canberra.

Huawei has been essentially shut out of doing business in the United States, and is likely to be barred from bidding on contracts to build a fifth-generation, or 5G, telecom network in Australia over concerns about spying and security.

The report comes amid heightened concerns about Chinese meddling in Australian politics, and a government effort to pass a law designed to combat foreign interference.