Cahya Mata Sarawak Berhad is an investment holding company. The Cement segment is engaged in the manufacturing of cement, clinker and concrete products. The Road maintenance segment is engaged in road construction and maintenance. The Property development segment includes property holding, development, project management, lodges accommodation and hotel operations. The Phosphate segment manufactures food, feed and fertilizer phosphate products. The Oil tools segment provides oilfield equipment, supplies and services. The Construction materials and trading segments provide quarry aggregates, ready-mix concrete, and industrial products. The Strategic investments segment includes quarry operations, production and sale of premix, wires and general trading, education and various investments through associates and joint ventures. The Support services segment includes head office, management services, investment holding and dormant companies.