Moss is a coastal town and municipality in the county of Østfold, Norway. Its administrative district covers areas east of the town, such as the island of Dillingøy in the lake Vansjø. Parts of the town are located on the peninsula Jeløy. The town is known for paper mills, as well as metalworks and other factories. Dillingøy is known as a place for alternative non-military civil service. Moss is mentioned since the Renaissance and was the site of the signing of the Convention of Moss in 1814, which solidified the union with Sweden. The headquarters of textile producer Helly-Hansen are located here. The maker of international hotel keycards, Trio Ving, also has their headquarters here.