Workers at Tianjin Mitsumi Electric Co.Ltd., a Japanese-owned plant in north China's Tianjin Municipality, returned to work Saturday after a four-day strike, the company said.

The plant has resumed production after an agreement was reached between the workers and the employer. The workers' lawful demands were satisfied, said a company statement, but it gave no details about the agreement.

Workers had previously told Xinhua they wanted pay rise and better social security packages.

Mitsumi was established in Tianjin in 1992 with a registered capital of 40.8 million U.S. dollars. It produces electronic components and computer parts and employs 3,000 people.

It has two factories in Tianjin: the one in Dongli District, where the strike occurred, and another at the New Technology Industrial Park.