Indonesia and Singapore established diplomatic relations on 7 September 1967,[1] a month after the formation of the Association of Southeast Asian Nations (ASEAN) on 8 August 1967.

Over the years, Indonesia and Singapore have maintained regular exchanges of high-level visits, underpinned by strong economic cooperation across a wide range of sectors, including health, defence and the environment.

The golden jubilee of Indonesia-Singapore diplomatic relations was marked by a series of events in August: A "four-eye" meeting between the two leaders, RISING50 book launch, joint commemorative stamps issue, tree planting at the Singapore Botanic Gardens.

The first ever combined flypast of 20 fighter jets from the Republic of Singapore Air Force (RSAF) and Tentara Nasional Indonesia-Angkatan Udara (TNI-AU) was also held, in a formation of the number "50".

On the economic front, an investment forum was held and nine memoranda of understandings (MOUs) were signed, including cooperations in education and research, student exchanges, environment and energy.

[7] On 21 July 2022, Indonesia announced that they will be willing to set up a large chicken farm in Batam, a city in the Riau Islands, specifically for exports to Singapore.

[9] On 28 July 2022, another Indonesian firm announced that they will be setting up three farms on the island of Bintan to supply live chicken to Singapore starting from the end of that year.

[12] Other than business purposes, Indonesian visitors attracted to Singapore mostly for shopping, city sightseeing, and island resorts with its theme parks, zoos, museums and gardens.

[citation needed] Relations with Indonesia are generally good, though current outstanding issues include the bans on the export of sand and granite,[13] both of which Singapore's construction industry is reliant on.

[15] In June 2013, Singapore suffered from the haze coming from slash-and-burn practice to clear plantation lands in neighboring countries Riau, Sumatra, and Indonesia.

[17][18] However, some past and present Indonesian officials have argued against Singapore's right to do so, and reasoned that the FIR is a critical determinant of Indonesia's air sovereignty and defense.

[19] In January 2022, the 5th Singapore–Indonesia Leader's Retreat held at Sanchaya Resort in Bintan[20] saw the signing of three agreements addressing bilateral issues of FIR, defence cooperation, and extradition of fugitives, that are important to both sides.