PREMIUM France’s Lafarge SA, the world’s largest cement producer, reaffirmed its commitment to building a cement plant in Langkat, North Sumatra, with an investment of up to Rp 5 trillion (US$585 million), a minister says.

Industry Minister M.S. Hidayat said Sunday that Lafarge was currently finalizing a feasibility study for the project and exploring sources of raw materials in the area, while...