<Table> <Tr> <Td_colspan="2"> Mekong River </Td> </Tr> <Tr> <Td_colspan="2"> Megaung Myit (မဲခေါင်မြစ်), แม่น้ํา โขง (Maenam Khong), ແມ່ນ້ໍາຂອງ, Mékôngk, Tonle Thom (ទន្លេ ដ៏ ធំ, ទន្លេ មេគង្គ), Cửu Long (九龍), Mê Kông, 湄 公 (Méigōng) </Td> </Tr> <Tr> <Td_colspan="2"> A view of the Mekong River at Luang Prabang in Laos </Td> </Tr> <Tr> <Th> Countries </Th> <Td> China, Myanmar, Laos, Thailand, Cambodia, Vietnam </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Tributaries </Td> </Tr> <Tr> <Td> - left </Td> <Td> Nam Khan, Tha, Nam Ou </Td> </Tr> <Tr> <Td> - right </Td> <Td> Mun, Tonle Sap, Kok, Ruak </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Source </Th> <Td> Lasagongma Spring </Td> </Tr> <Tr> <Td> - location </Td> <Td> Mt . Guozongmucha, Zadoi, Yushu Tibetan Autonomous Prefecture, Qinghai, China </Td> </Tr> <Tr> <Td> - elevation </Td> <Td> 5,224 m (17,139 ft) </Td> </Tr> <Tr> <Td> - coordinates </Td> <Td> 33 ° 42.5 ′ N 94 ° 41.7 ′ E ﻿ / ﻿ 33.7083 ° N 94.6950 ° E ﻿ / 33.7083; 94.6950 </Td> </Tr> <Tr> <Th> Mouth </Th> <Td> Mekong Delta </Td> </Tr> <Tr> <Td> - elevation </Td> <Td> 0 m (0 ft) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Length </Th> <Td> 4,350 km (2,703 mi) </Td> </Tr> <Tr> <Th> Basin </Th> <Td> 795,000 km (307,000 sq mi) </Td> </Tr> <Tr> <Th> Discharge </Th> <Td> for South China Sea </Td> </Tr> <Tr> <Td> - average </Td> <Td> 16,000 m / s (570,000 cu ft / s) </Td> </Tr> <Tr> <Td> - max </Td> <Td> 39,000 m / s (1,400,000 cu ft / s) </Td> </Tr> <Tr> <Td> - min </Td> <Td> 1,400 m / s (50,000 cu ft / s) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Protection Status </Th> <Td> </Td> </Tr> <Tr> <Th_colspan="2"> Ramsar Wetland </Th> </Tr> <Tr> <Th> Official name </Th> <Td> Middle Stretches of the Mekong River north of Stoeng Treng </Td> </Tr> <Tr> <Th> Designated </Th> <Td> June 23, 1999 </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Mekong River watershed </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Mekong River </Td> </Tr>

Which country controls the headwaters of the mekong river
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