OKA Corporation Berhad is a Malaysia-based investment holding company. Through its subsidiaries, the Company is engaged in the manufacture and sale of pre-cast concrete products and ready-mixed concrete, trading of ready-mixed concrete, construction and provision of transportation, and other related services. Its subsidiaries are OKA Concrete Industries Sdn Bhd, which is engaged in the manufacture and sale of pre-cast concrete products; OKA Readymixed Concrete Sdn Bhd, which is involved in the trading of ready-mixed concrete; OKA Engineering and Trading Sdn Bhd, which is involved in the manufacture of hard drawn wires and trading of pre-stressed concrete piles; Pembinaan Cahaya Emas Sdn Bhd, which is engaged in construction and related services, and Real Charisma Sdn Bhd, which provides transportation and other related services.