Under British rule

Both Klang and Port Swettenham were already known as notoriously malaria prone localities with the port itself located on a mangrove swamp. Within two months of its opening, the port was closed due to an outbreak of malaria.^[14][15] Just a few years before, the British doctor Sir Ronald Ross proved in 1897 that malaria is transmitted by mosquitoes. Port Swettenham was the first colonial area to benefit from the discovery.^[16] Swamps were filled in, jungle cleared, and surface water diverted to destroy mosquito breeding grounds and combat further disruption to port operations. The threat of malaria was removed completely by the end of the exercise. Trade grew rapidly and two new berths were added by 1914 along with other port facilities. The Selangor Polo Club was founded in Port Swettenham in 1902 but it moved to Kuala Lumpur in 1911.^[17]

Between World Wars I and II, the port experienced much growth and expansion, peaking in 1940 when tonnage rose to 550,000 tonnes. During the Second World War allied aircraft were serviced by RAF Servicing Commandos at airfields in Port Swettenham.^[18] Its location is marked on a 1954 map by the United States Army. Much of the port's facilities that were damaged during the war were reconstructed. The port expanded to the south with permanent installations to handle more palm oil and latex, two increasingly important exports. Imports also grew tremendously and tonnage of cargo handled at the port far exceeded what was thought possible before the war.^[19]

Post-independence

On 1 July 1963, the Malaysian government established the Port Swettenham Authority, which was subsequently changed to Port Klang Authority, as a statutory corporation to take over the administration of Port Klang from the Malayan Railway Administration. In the late 1960s and 1970s new deepwater berths were constructed with wharves suitable for handling container as well as conventional cargoes. The Royal Selangor Yacht Club was first registered here as "Port Swettenham Yacht Club" in July 1969.^[20] In November 1972, Prime Minister Tun Abdul Razak declared the container terminal open and in May 1974, construction of seven more berths for bulk cargo began and was completed in 1983. In October 1982, construction of the liquid bulk terminal in North Port was completed.

On 17 March 1986, the container terminal facilities operated by Port Klang Authority was privatised to Klang Container Terminal Berhad as part of the privatisation exercise of the government. In January 1988, construction work began on a new 800 feet (240 m) berth, as an alternative to the immediate development of West Port.^[19] A government directive in 1993 has identified Port Klang to be developed into the National Load Centre. Port Klang has since grown and now establishes trade connections with over 120 countries and dealings with more than 500 ports around the world.^[21]

The port is part of the Maritime Silk Road that runs from the Chinese coast via the Suez Canal to the Mediterranean, there to the Upper Adriatic region of Trieste with its connections to Central and Eastern Europe.^{[22][23][24][25]}

As of July 2020^[update], Port Klang was the top location for aluminium stockholding for LME, the top metal exchange in the world. LME reported that the port had "taken centre stage in the LME aluminium storage wars over the last couple of years": 911,000 tonnes or registered stock and 434,000 tonnes of shadow stocks were held there at the end of May 2020.^[3]

Port Klang Authority

The Port Klang Authority administers three ports in the Port Klang area namely Northport, Southpoint and Westport. Prior to the establishment of the Port Klang Authority, South Port was the only existing port and was administered by the Malayan Railway Administration. Both Westport and Northport have been privatized and managed as separate entities.

The total capacity of the port is 109,700,000 tons of cargo in 2005 compared to 550,000 tons in 1940.^[26]

Port operators

Car

Port Klang is the western end of the Federal Highway Federal Route 2 that links it all the way to Kuala Lumpur. The KESAS interchanges with the Pulau Indah Expressway Federal Route 181 in nearby Pandamaran connects to Westports and the PKFZ.

Main roads that link the Port Klang town, Southport and housing area are Persiaran Raja Muda Musa and Jalan Pelabuhan Utara.

Since 2012, Pulau Indah is directly connected to Malaysia's administrative capital, Putrajaya and Kajang via the SKVE South Klang Valley Expressway.^[28]

Public transportation

There is a frequent bus and commuter train service to Kuala Lumpur via Klang.

Port Klang is served by the KTM Komuter service and trains stop at the  KD19  Port Klang Komuter station. The electric train service links to Klang, Kuala Lumpur, Subang Jaya, Shah Alam and all the way until Tanjung Malim.

A passenger ferry terminal to Pulau Ketam and an International terminal to Tanjungbalai and Dumai in Indonesia are also located in the area. The old ferry terminal used to serve regular passenger boats to Pulau Lumut and Telok Gonjeng terminal until the completion of Northport Bridge link.