The decision was in compliance with the province's social distancing campaign which started on February 16, the company's management said in a notice to the HCM Stock Exchange.
It said the plant shutdown would not affect the company’s business or finances.
The company, headquartered in the southern Dong Nai Province, manufactures electrical wires and cables.
Vietnam has confirmed 791 Covid cases in 13 localities since January 28, with Hai Duong accounting for 611.
The province, around 60 kilometers from Hanoi, ordered 15 days of social distancing last Tuesday, with authorities requesting people to only leave home to buy necessities like food and medicines or emergencies.