Sum Technology Berhad operates as an engineering solutions provider for highly controlled and technical environments in Malaysia, Philippines, Taiwan, Indonesia, Singapore, Australia, Bangladesh, and India. The company operates through three segments, turnkey solutions, manufacturing of AHU, and trading of AHU and solar PV panels. The company’s turnkey solutions segment engages in design and build solutions for mission critical products, technologies and services for cleanrooms, controlled environments and MEPF utilities. Its turnkey project services include cleanroom and MEPF utilities, such as designs, procurement, installation, and construction of cleanroom; testing, commissioning, and certification of cleanrooms and MEPF utilities; and design and build of standalone MEPF utilities including engineering and designs, procurement, installation and construction, testing and commissioning of MEPF utilities. Its AHU manufacturing segment is involved in the manufacturing of customised industrial AHU that are marketed under the MAC brand. The company’s AHU products include Chilled water AHU, Direct expansion (“DX”) AHU and DX FCU, Variable refrigerant flow (“VRF”) AHU and VRF FCU, Heat recovery AHU, Cabinet fan, Filter box, and pre-cool coil and dry coil. The company also offers maintenance and support services. Additionally, it engages in the manufacturing and trading of general and customised MVAC products specialising in customised of manufacturing of MVAC equipment, such as AHUs and FCUs. Its MVAC products are designed for industrial applications to regulate temperature, airflow, and airborne pollutant levels such as dust, microbes, and particles. The company caters to sectors, such as semiconductor, electrical, electronics, life sciences, data centres, laboratories and R&D centres, biotechnology, consumer goods, pharmaceutical, healthcare, and engineering services sectors. The company was formerly known as Sum Technology Sdn Bhd and changed its name to Sum Technology Berhad in September 2025. The company was incorporated in 2013 and is based in Petaling Jaya, Malaysia.