Huawei worked with the North Korean government to build and maintain a commercial wireless network, The Washington Post reported based on people familiar with the situation and internal documents.

The documents show that Huawei partnered with Chinese state-owned firm Panda International Information Technology on several projects over eight years, according to the Post, though it is unclear what role Huawei played. The Post said it obtained work orders, contracts and spreadsheets from people who believed they would be of public interest, including a former Huawei employee.

A Huawei spokesperson told CNBC the company "has no business presence in the Democratic People's Republic of Korea."

"Huawei is fully committed to comply with all applicable laws and regulations in the countries and regions where we operate, including all export control and sanction laws and regulations of the UN, US, and EU," the spokesperson said in a statement.