Bintan Island
"On the South." The Eastern and Southern limits of Singapore and Malacca Straits [A line joining Tanjong Datok, the Southeast point of Johore () through Horsburgh Reef to Pulo Koko, the Northeastern extreme of Bintan Island (). The Northeastern coast of Sumatra] as far West as Tanjong Kedabu () down the East coast of Sumatra to Lucipara Point () thence to Tanjong Nanka, the Southwest extremity of Banka Island (where it transitions as Java Sea), through this island to Tanjong Berikat the Eastern point (), on to Tanjong Djemang () in Billiton, along the North coast of this island to Tanjong Boeroeng Mandi () and thence a line to Tanjong Sambar () the Southwest extreme of Borneo.