Donugroho Sihono

Donugroho Sihono serves as President Director of Semen Indonesia (SIG), Southeast Asia's largest cement company and an Indonesian state-owned enterprise. SIG operates multiple cement brands across Indonesia — including Semen Padang (the country's oldest cement brand), Semen Gresik, Semen Tonasa, and Semen Baturaja — with combined production capacity exceeding 45 million tons annually. Indonesia's cement market is fundamentally driven by the country's massive infrastructure development needs: a 280-million-person archipelago nation spread across 17,000 islands requires enormous investment in roads, bridges, ports, airports, housing, and public facilities. Government infrastructure programs — including the ongoing development of Nusantara, the new capital city on Borneo — provide multi-year demand visibility. However, the Indonesian cement industry has faced chronic overcapacity: total installed capacity significantly exceeds demand, putting pressure on prices and margins. SIG has responded by focusing on operational efficiency, logistics optimization (particularly important given Indonesia's geography), and diversifying into ready-mix concrete and building materials. Key stock drivers include Indonesian cement demand (driven by infrastructure spending and housing), cement pricing and capacity utilization, government infrastructure budget execution, new capital city construction progress, logistics costs, and competition from Indocement and Holcim Indonesia.