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Science and technology

Government expenditure on research and development is relatively low (0.3% of GDP in 2019), and Indonesia only ranked 61st on the 2023 Global Innovation Index report. Historical examples of scientific and technological developments include the paddy cultivation technique terasering, which is common in Southeast Asia, and the pinisi boats by the Bugis and Makassar people. In the 1980s, Indonesian engineer Tjokorda Raka Sukawati invented a road construction technique named Sosrobahu that later became widely used in several countries. The country is also an active producer of passenger trains and freight wagons with its state-owned company, the Indonesian Railway Industry (INKA), and has exported trains abroad.

Indonesia has a long history of developing military and small commuter aircraft. It is the only country in Southeast Asia to build and produce aircraft. The state-owned Indonesian Aerospace company (PT. Dirgantara Indonesia) has provided components for Boeing and Airbus. The company also collaborated with EADS CASA of Spain to develop the CN-235, which has been used by several countries. Former President B. J. Habibie played a vital role in this achievement. Indonesia has also joined the South Korean programme to manufacture the 4.5-generation fighter jet KAI KF-21 Boramae.

Indonesia has a space programme and space agency, the National Institute of Aeronautics and Space (Lembaga Penerbangan dan Antariksa Nasional, LAPAN). In the 1970s, Indonesia became the first developing country to operate a satellite system called Palapa, a series of communication satellites owned by Indosat. The first satellite, PALAPA A1, was launched on 8 July 1976 from the Kennedy Space Center in Florida, United States. As of 2024, Indonesia has launched 19 satellites for various purposes.

In May 2024, Indonesia granted licensure to satellite internet provider Starlink aimed at bringing Internet connectivity to the rural and underserved regions of Indonesia.