19/05/2026
The aquaculture sector in Sidoarjo is demonstrating remarkable socio-economic resilience through the strategic implementation of polyculture systems. By integrating rapid-cycling seaweed—harvested every 40 to 63 days—with longer-cycle species like milkfish and shrimp, local producers effectively mitigate extreme climate vulnerabilities and stabilise grassroots cash flows. This resilient production model is successfully institutionalised through cooperative model, one of them is Koperasi Rumput Laut Agar Makmur Santosa. Formed in 2023, the cooperative has centralised local supply chains and navigated complex international markets to execute six independent exports to China.
Currently, the cooperative is at a critical strategic inflection point. Their long-term growth trajectory aims to transition from raw material exportation to high-value domestic industrialisation, specifically focusing on exploration and expansion toward operation of their own agar processing factory and pioneering zero-waste bioplastic technologies that utilise marine waste. However, this is severely bottlenecked by conventional financial institutions' stringent collateral and operational history requirements. Unlocking this community's ultimate economic and ecological potential requires targeted, alternative financial interventions—such as venture capital, share ownership models, or non-conventional institutional financing. Injecting accessible capital would empower the cooperative to secure critical processing infrastructure, shifting the paradigm from vulnerable raw material trade to a robust, vertically integrated, and sustainable aquaculture economy.
These findings were found as part of the site visits and stakeholder engagement efforts supported by COAST Facility Indonesia.