Namyang Workers' District (남양로동자구) is a town in Onsong, North Hamgyong, North Korea.
 It lies on the Tumen River and opposite to the city of Tumen that stands in the Chinese bank of the river.
The Tumen Border Bridge () is a bridge over the Tumen River, connecting Tumen City, Jilin Province, China, with Onsong County (Namyang), North Hamgyong Province, North Korea.
 It was built in 1941 by the Japanese and is 515 metres long, 6 metres high, 6 metres wide.
 Tumen Border Post is located there.
 A little upstream from the bridge is Tumen Border Railway Bridge.
Northeast China () or Dongbei is a geographical region of China.
 It also historically corresponds with the term Manchuria in the English language.
 It consists specifically of the three provinces of Liaoning, Jilin and Heilongjiang, collectively referred as the Three Northeastern Provinces (东北三省, "Dōngběi sānshěng"), but broadly also encompasses the eastern part of Inner Mongolia.
 The region is separated from Far Eastern Russia to the north largely by the Amur, Argun and Ussuri rivers, from North Korea to the south by the Yalu River and Tumen River, and from the Inner Mongolian Autonomous Region to the west by the Greater Khingan Range.
 The heartland of the region is the Northeast China Plain.
Tumen is a county-level city in Yanbian Korean Autonomous Prefecture, eastern Jilin province, Northeast China.
 Of its 136,000 inhabitants, approximately 78,000 (or 57%) are of Korean descent.
 The two official languages are Chinese and Korean.
 Tumen is separated from Namyang of North Hamgyong province of North Korea by the Tumen River.
 Due to this proximity, many North Koreans escaping their country pass through Tumen.
 Tumen is also the location of a large detention center for captured North Koreans awaiting deportation.
 Tumen has two major food markets, the South Market and the North Market, where most of the residents purchase their food.
 Packaged foods and meats are usually sold inside the building, and vegetables are sold outside.
 There are six elementary schools, with three Korean schools, and three Chinese schools.
Shànwěi (), or Swabue, is a prefecture-level city in eastern Guangdong province, People's Republic of China.
 It borders Jieyang to the east, Meizhou and Heyuan to the north, Huizhou to the west, and looks out to the South China Sea to the south.
 It lies approximately 120 km east of Shenzhen and the locals speak the Haifeng dialect.
Sanhe () is a town under the administration of Longjing City in southeastern Jilin, People's Republic of China, located along the Sino-Korean border west of North Korea; the nearest major settlement across the Tumen River (and the border) is Hoeryong in North Hamgyong Province.
 It is 41 km southeast of downtown Longjing and 50 km south-southeast of Yanji.
 , it has one residential community (社区 ) and four villages under its administration.
The Gaya River () is a tributary of the Tumen River in east Jilin province of China.
 The source of river is located in Wangqing County and flows generally from north to south and joins Tumen River at Tumen City.
The river has a length of 205.2 km and drains an area of 13,565 square km.
The Tumen River Bridge () is a bridge over the Tumen River, connecting Hunchun City, Jilin Province, China, with Undok County, North Hamgyong Province, North Korea.
 It was built in 1938 by the Japanese Empire and is 535.2 m long and 6.6 m wide.
 It is located at Quanhe where the Quan River meets the Tumen River.
The Ji'an–Shuangliao Expressway (), commonly referred to as the "Jishuang Expressway" () is an expressway under construction that connects the cities of Shuangliao, Jilin, China, and Ji'an, Jilin.
 Ji'an is on the border with North Korea; however there is only a railway bridge across the Yalu River to Manpo, North Korea.
 No road crossing has been achieved, but North Korea has plans to extend the Pyongyang-Huichon Expressway to the border at Manpo.
 The expressway is a spur of G11 Hegang–Dalian Expressway.
Hoeryŏng (] ) is a city in North Hamgyŏng Province, North Korea.
 It is located opposite Jilin Province, China, with the Tumen River in between.
 Sanhe (三合鎮), in Longjing City, is the closest Chinese town across the river.
 Hoeryŏng is claimed to be the birthplace of Kim Il Sung's first wife and Kim Jong Il's mother, Kim Jong Suk.
 It was known as "Kainei" during Japanese rule.

Question: Which city is located closer to North Korea, Tumen, Jilin or Shanwei?
Answer: Tumen