Tenaga Nasional Berhad (TNB) is a leading Malaysian utility company primarily involved in the comprehensive spectrum of electricity operations, encompassing its generation, transmission, distribution, and sale, both within Malaysia and globally. Central to its infrastructure, TNB manages and operates a diverse portfolio of power generation facilities, including conventional thermal plants and renewable hydroelectric schemes. The company also provides vital support to independent power producers and oversees the National Grid, Malaysia's essential electricity transmission network, which boasts interconnections with Thailand's system and Singapore's grid via Senoko. Beyond its core electricity services, TNB's activities are extensive. It handles the procurement and supply of fuels, such as coal, for power generation, trades in various energy sources, and offers associated technical expertise. The company is engaged in developing district cooling systems, operating co-generation works, and manufacturing, selling, and repairing various types of transformers (distribution, power, and earthing). Furthermore, it develops, owns, and manages facilities like dry bulk terminals. TNB's diversified offerings extend into numerous other sectors. It undertakes turnkey projects for transmission substations, provides maintenance and repair services for heavy industries, and manages operations for telecommunication equipment and data centers. The company also contributes to education through higher learning institutions, offers IT infrastructure solutions, and conducts research and development across fields like engineering, IT, business, accountancy, and liberal studies, alongside providing specialized training courses. Additional services include insurance and reinsurance products, management of parking facilities, technical and laboratory services, and consultancy. TNB also manufactures and distributes power and general cables, as well as aluminum rods, operates integrated district cooling systems for commercial buildings, and is involved in the assembly, manufacturing, testing, reconditioning, and distribution of high and medium voltage switchgears and control gears for power transmission. Its portfolio also includes the operation of wind energy assets. The company primarily serves a broad customer base, including commercial enterprises, industrial facilities, and residential households. Founded in 1949, Tenaga Nasional Berhad is headquartered in Kuala Lumpur, Malaysia.