Zantat Holdings Berhad is an investment holding company. Through its subsidiaries, the company is principally involved the production of calcium carbonate namely ground calcium carbonate (GCC) and calcium carbonate (CC) dispersions. It is also involved in the production of kaolin dispersion, processing of ultrafine PCC powder, trading of other industrial minerals (mainly talcum powder and limestone chips), and sales of limestone quarry products. It operates its own limestone quarry mainly for internal use of limestone.