Nippon Television Network Corp. said Tuesday its foreign ownership has increased to 18.8 percent as of March 31, nearing the 20 percent legal limit.

The ratio stood at 17.33 percent on Sept. 30.

When foreign ownership with voting rights exceeds the ceiling, a broadcaster can have its license revoked. Broadcasters are required to publicize the level of foreign ownership every six months if it is over 15 percent.