Kuala Lumpur is officially known as the Kuala Lumpur Federal Territory (Malay: Wilayah Persekutuan Kuala Lumpur), commonly known as Kuala Lumpur, is the national capital and largest city of Malaysia. As a global city in Malaysia, it covers an area of ​​243 square kilometers (94 square miles) until 2016, with an estimated population of 1.73 million. Greater Kuala Lumpur (also known as Klang Valley) is an urban agglomeration of 7.25 million people terminated in 2017. Whether it is population or economic development, it is one of the metropolitan areas in Southeast Asia where development is accelerating.

Even if the federal government administration was moved to Putrajaya, certain government agencies, such as the National Bank of Malaysia (National Bank of Malaysia), the Malaysian Companies Commission and the Securities Commission, and most embassies and diplomatic missions remained in the city.

The city remains the economic and commercial center of the country. Kuala Lumpur is Malaysia's financial, insurance, real estate, media and arts center. According to the statistics of the establishment and World City Research Group and Network (GaWC), Kuala Lumpur is the world city of Alpha and is the only real estate city in Malaysia. Infrastructure development in the surrounding areas, such as Kuala Lumpur International Airport in Sepang, the establishment of a multimedia super corridor and the expansion of Port Klang further enhance the economic significance of the city.