The arrest is the latest in a line of incidents to rock the company, including the arrest of CFO Meng Wanzhou in Vancouver and most recently and the departure of Huawei Canada's senior vice president of corporate affairs, Scott Bradley. Security services searched their homes and the offices of Huawei and Orange Polska, the Polish business of French mobile operator Orange SA.
If found guilty, both the men which were accused of espionage could face prison sentences of up to 10 years.
"Huawei has always abided by applicable laws and regulations of the country where it is located... and requires all employees to abide by the country's laws and regulations", it said.
A representative from Huawei said the company "is aware of the situation and is looking into it".
The Chinese national is a former employee of the country's consulate in the Baltic Sea port of Gdansk, according to TVPInfo.
Huawei Technologies, already mired in a USA case alleging sanctions violations, faces new global scrutiny after Poland arrested a company employee and a former Polish security agent and accused them of spying for China.
Maciej Wasik, deputy head of Poland's special service, said that the operation that resulted in the arrest of the two suspects had been underway for a long time and was planned with care.
Google Assistant Intros New Travel Feature At CES 01/10/2019
Consumers will need their flight confirmation details and will have to say something like, "Hey Google, check me in to my flight".
The Huawei employee is a Chinese citizen responsible for sales to public-sector clients in Poland, according to TVPInfo.
Norway came out against Huawei on Wednesday (9 December), as Justice Minister Tor Mikkel Wara disclosed that the country is considering excluding the Chinese firm from investing in the next generation of mobile communications (5G).
He is a graduate of the Beijing University of Foreign Studies.
In mid-August, Washington enacted legislation banning United States government agencies from using Huawei products amid concerns that the company's mobile phones "pose an unacceptable risk to the [Pentagon's] personnel, information and mission".
Orange told the AP it did not know if the suspicions against its employee were related to his professional duties and that it was working with the country's security agency.
Following her arrest, two Canadians were detained in China on grounds of endangering national security, in what has largely been seen as retaliation. She is out on bail in Canada awaiting extradition proceedings.
Its products have been subject to blocks and bans in some countries, including the US, Australia and New Zealand.