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U.S. Vice President Mike Pence and Polish Prime Minister Mateusz Morawiecki, right, sign an agreement in Warsaw, Poland, on Monday, Sept. 2.Petr David Josek/The Associated Press

The United States and Poland believe suppliers of 5G network equipment should be rigorously evaluated for foreign government control, a joint declaration signed on Monday said, as Washington pressures allies to exclude China from 5G networks.

Chinese telecoms giant Huawei Technologies Co Ltd has denied U.S. accusations that its equipment provides back doors for Beijing’s intelligence agencies.

Huawei has a strong foothold in Poland, a close ally of President Donald Trump’s administration, and has featured national soccer hero Robert Lewandowski in its advertising.

“All countries must ensure only trusted and reliable suppliers participate in networks,” said the declaration, signed by U.S. Vice-President Michael Pence and Polish Prime Minister Mateusz Morawiecki in Warsaw.

The declaration says it is important to ascertain whether a supplier is subject to control by a foreign government and has both transparent ownership structures and corporate practices.

Marc Short, Mr. Pence’s chief of staff, said the agreement would ensure that all components, software and systems were designed with security in mind when developing and deploying 5G.

“We must stand together to prevent the Chinese Communist Party from using subsidiaries like Huawei to gather intelligence while supporting China’s military and state security services – with our technology,” he said in a statement.

Huawei remains under scrutiny in Poland, where authorities arrested a Chinese employee of Huawei and a former Polish security official on spying allegations in January.

Huawei denies the spying allegations.

“Polish security services have conducted and are conducting activities in this regard and they detected actions which may be qualified as actions of an espionage character,” Polish President Andrzej Duda said during a news conference with Mr. Pence.


Mr. Pence said he had spoken with Duda about the importance of judicial independence, but did not offer any direct criticism of Poland’s record.

The country’s ruling Law and Justice (PiS) party, which Duda comes from, pushed through a range of powers that rights groups and the European Commission said threatened the rule of law and increased the government’s control over Polish courts.

“As I told President Duda, we are grateful for his commitment to strengthening the foundations of the rule of law in Poland,” Mr. Pence said.

Mr. Pence also said Washington was nearing a decision on including Poland in the country’s visa waiver program, adding it was a “matter of weeks.”

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