The report, made for KPN by the Capgemini consultancy firm in 2010, concluded that the Chinese company could have been monitoring the calls of the provider’s 6.5m users without the Dutch company’s knowledge, according to the newspaper report as quoted by The Guardian.

Conversations that Huawei staff in the Netherlands and China could have monitored included calls made by the then prime minister, Jan Peter Balkenende, and Chinese dissidents, the report claimed.

While KPN acknowledged the existence of the report, it said on Monday it had “never observed that Huawei took client information”, adding that none of its suppliers had “unauthorised, uncontrolled or unlimited access to our networks and systems”, reports the newspaper.

Huawei, however, rejected the claims.

“We have never been accused by government bodies of acting in an unauthorised way,” it said as quoted by The Guardian.