About Prestamaju Holdings Sdn Bhd Established in 1998, Prestamaju Holdings Sdn Bhd, previously known as Usahasama Karisma Intan Pemb Prestamaju Sdn. Bhd., stands as a premier provider of comprehensive turnkey design and construction services dedicated to wastewater treatment plants across Malaysia's diverse domestic, agricultural, and industrial sectors. Specializing in sewage treatment plants, pumping