Svetogorsk (Russian: Светогорск, Finnish: Enso) is an industrial town in Vyborgsky District of Leningrad Oblast, Russia, located on the Karelian Isthmus, on the Vuoksi River.

The former Minister for Foreign Affairs of Finland Väinö Tanner wrote in his memoirs: "Already now a dispute about the district of Enso developed.

Notably, the construction workers in Svetogorsk were called "builders", and the project also had intent to "build friendship between peoples".

According to the Finnish public service broadcaster Yle, the militia[clarification needed] participated in effectively cutting off through traffic.

[4] Before the Winter War, the town was a major factory site for Enso-Gutzeit Oy, the Finnish pulp and paper company (now Stora Enso).

In the 1940 Moscow Peace Treaty, the new Finnish-Soviet border was deliberately drawn to leave the factory complex on the Soviet side.

Covering 2 square kilometers (0.77 sq mi), OAO Svetogorsk produces pulp, printing paper, and packaging board.

This formed part of the original mill complex but was split-away and resold by International Paper to SCA during the acquisition of OAO Svetogorsk from Tetra Laval, which controlled the plant since 1995.

The border crossing, which had temporary status, was a bottleneck causing frequent delays due to lengthy customs checks and inadequate facilities.

This €7 million European Union TACIS-funded project ran from 1999 and the new international frontier, capable of handling 1,300 cars per day, opened on July 3, 2002.