ZTE, in a statement to the stock exchange on Thursday, named a former head of its Germany business, Xu Ziyang, as its new chief executive.

Wang Xiyu, Gu Junying and Li Ying have been named executive vice presidents, the statement showed. Li Ying was also appointed chief financial officer.

ZTE had promised to overhaul its management within 30 days of agreeing a $1.4 billion settlement with U.S. authorities in June, aimed at lifting a seven-year supplier ban.

On Friday, ZTE said it had received authorization from the U.S. Commerce Department's Bureau of Industry and Services (BIS) to conduct certain business from July 2 until Aug 1. The statement confirmed a notice issued by BIS earlier this week.

ZTE, which relies on U.S. suppliers for core components, had to cease major operations in April after authorities imposed the ban, saying the firm broke an agreement to discipline executives who conspired to evade U.S. sanctions on Iran and North Korea.

As part of the settlement, ZTE agreed to pay a $1 billion fine, put $400 million in escrow, and hire a U.S.-appointed compliance monitor. It also agreed to replace its board, remove all members of its leadership at or above senior vice president level along with any executives associated with the wrongdoing, and punish responsible executives.

Zhao Xianming is no longer the company's CEO, ZTE said in the statement. Five executives, including Xu Huijun, Zhang Zhenhui, Pang Shengqing, Xiong Hui and Shao Weilin, have been removed from executive vice president posts.

The new management appointments come after ZTE last week elected a new board led by 54-year-old Li Zixue as chairman to replace a 14-person board led by Yin Yimin.

New CEO Xu was most recently president of ZTE's telco cloud and core networks product line, according to past media reports. New Chief Technology Officer Wang Xiyu was formerly a deputy CTO, and new CFO Li Ying was only promoted to vice president earlier this year, according to company insiders.

Some employees Reuters spoke to have expressed concerns about whether a new board and management could settle in smoothly to successfully revive the firm without the help of veterans. Analysts have also said it would take time for ZTE to rebuild market confidence even after the ban is lifted.

(Reporting by Sijia Jiang, Twinnie Siu, Meg Shen and Anne Marie Roantree; Editing by David Evans and Muralikumar Anantharaman)

By Sijia Jiang