Graphite mining in Sri Lanka has occurred since the Dutch occupation of the country. It is the only country in the world to produce the purest form of graphite, vein graphite (also known as lump graphite), in commercial quantities, currently accounts for less than 1% of the world graphite production. Graphite (locally known as plumbago) mines were mostly located in north western and south western parts of the island, with working pits located in Aluketiya, Meegahatenna, Matugama and Agalawatta. The Geological Survey Department, started in 1903, maintained records of all graphite pits, shallow workings and mines under the Inspector of Mines. However these records were lost when the Geological Survey and Mines Bureau was established in 1992. The miners were Singhalese peasants, using primitive methods for driving shafts, adding to local folklore. Through plumbago mining, entrepreneurs such as Don Charles Gemoris Attygalle, Don Spater Senanayake and Duenuge Disan Pedris made their fortunes leading to many of the larger mines coming under the control several business families such as the Senanayakes, Kotalawelas and De Mels. These families dominated the pre-independence and post-independence political landscape in Ceylon, with membership in the United National Party. Many of these politicians (Sir John Kotelawala in Dodangaslanda, Dudley Senanayake in Dedigama) established their constituencies in these mining areas, where they traditionally had influence over the villages employed in their mines. Sri Lanka's current annual production is 9,000 to 10,000 tons for two underground mines, one of which is Kahatagha and Bogala.