• Summary

This legal document contains the English version of the Treaty between the Republic of Indonesia and the Republic of Singapore relating to the delimitation of the territorial seas of the two countries in the western part of the Strait of Singapore signed on 10 March 2009. Specifically, the boundary of the territorial seas of both parties in the Strait of Singapore is extended westward from “point 1”, which was the western terminus of the boundary agreed in the 1973 Treaty. The boundary agreed in this 2009 Treaty constitutes straight points connecting three points called 1A, 1B, and 1C, namely westward.

Notably, point 1A (1° 11′ 17.4″N – 103° 39′ 38.5″E) is measured to locate in between Indonesia’s Pulau Nipah (1° 8′ 49.9992″N – 103° 39′ 24.9984″E) and Singapore’s Sultan Shoal (1°14′24″N – 103°38′53″E). The use of Pulau Nipah shows that Indonesia’s archipelagic baseline which was legally conceptualized along with the concept of ärchipelagic water” in Indonesia’s Act No.6 in 1996 and in UNCLOS in 1985. Finally, point 1C, which is the western terminus of the boundary agreed in this 2009 Treaty is not the adjacent point between Indonesia’s, Singapore’s, and Malaysia’s territorial sea boundary. The extension of the territorial sea boundary of both countries in the Strait of Singapore western to point 1C shall be negotiated by Indonesia, Malaysia, and Singapore.

• Document: Treaty between the Republic of Indonesia and the Republic of Singapore relating to the delimitation of the territorial seas of the two countries in the western part of the Strait of Singapore on 10 March 2009 (English version, adopted from UN Treaty Series)