Some have interpreted Sea of Salahit as referring to Singapore,[4] although others generally considered it the Malacca Strait, a point of contact between the Arabs and the Zābaj (likely Sumatra).

The Eastern limit of Malacca Strait [A line joining Tanjong Piai (Bulus), the Southern extremity of the Malay Peninsula (1°16′N 103°31′E / 1.267°N 103.517°E / 1.267; 103.517 (W1)) and The Brothers (1°11.5′N 103°21′E / 1.1917°N 103.350°E / 1.1917; 103.350 (W2)) and thence to Klein Karimoen (1°10′N 103°23.5′E / 1.167°N 103.3917°E / 1.167; 103.3917 (W3))].

A line joining Tanjong Datok, the Southeast point of Johore (1°22′N 104°17′E / 1.367°N 104.283°E / 1.367; 104.283 (E1)) through Horsburgh Reef to Pulo Koka, the Northeastern extreme of Bintan Island (1°13.5′N 104°35′E / 1.2250°N 104.583°E / 1.2250; 104.583 (E2)).

The Southern shore of Singapore Island, Johore Shoal and the Southeastern coast of the Malay Peninsula.

[14] In 2024, ReCAAP reported targeted stealing of engine spares by pirates as unique to the Singapore and Malacca Straits, indicating the possibility of a black market.