Jakarta (ANTARA) – Indonesia and Singapore are expanding cooperation in investment, the digital economy and green energy, with both countries advancing projects in the Batam, Bintan and Karimun region and other strategic sectors.Coordinating Economic Affairs Minister Airlangga Hartarto said the BBK region remains a key pillar of bilateral economic cooperation.”Investment in BBK reached US$5.7 billion in 2025, increasing from the previous year,” he said on Tuesday.The commitment was reaffirmed during the 16th Six Bilateral Economic Working Groups Ministerial Meeting held in Jakarta on Monday.The meeting was co-chaired by Airlangga and Singapore Deputy Prime Minister and Trade and Industry Minister Gan Kim Yong.Airlangga said development of the Batam free trade zone continues, with its coverage expanding from eight islands to 22.He added that Nongsa Digital Park would continue to be developed to support digital economy growth.In manufacturing, the second phase of the Kendal Special Economic Zone will be expanded by about 1,000 hectares to attract investment and create jobs.In green energy, the two countries are advancing a solar power project developed by Sembcorp and PT Sumber Energi Surya Nusantara.The project is expected to be completed next year and will have 200 megawatts of generating capacity.It will also include an 80 megawatt-hour battery energy storage system, making it one of Indonesia's largest utility-scale solar facilities.In a joint statement, both governments said the BBK region is being developed as a regional digital economy hub.Projects under development include the expansion of Nongsa Special Economic Zone and data center investments in Batam and Bintan.Investors involved include DayOne, PT Equator Gate System and DCI Indonesia.”Indonesia and Singapore will conduct a joint technology-sector study in BBK to identify opportunities and formulate recommendations for regional growth,” Airlangga said.Gan said Singapore remains a strategic economic partner for Indonesia despite global economic uncertainty and geopolitical tensions.”Singapore's investment in Indonesia remains strong in 2025 at about US$17.4 billion, and we remain committed to being a reliable partner,” he said.The two countries will also launch the Young Farmer Development Program in June 2026 to strengthen cooperation in agricultural technology.