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Dong nai

Geographic location: Dong Nai province is bordered by Ho Chi Minh City, provinces of Ba Ria – Vung Tau, Binh Duong, Binh Phuoc, Binh Thuan, Lam Dong, being situated in the center of main economic zone of the South, which is the most developing and dynamic economic zone in Viet Nam.

Area: 5.902,50 km2

Topographic features
: Đồng Nai has topographic features of delta and flat land with scattered mountains, slopping from the north to the south.
Population: 2.405.112 (2008)
"Natural and Mineral Resources

Due to the geological characteristics of the area, there are not many traces of magma activities, Hai Phong does not have many large mineral mines. According to the results of geological expeditions, Hai Phong has some natural resources of small reserve such as iron mine in Duong Quan (Thuy Nguyen District); zinc mine in Cat Ba.

In termof metal resources, there is an iron mine in Duong Chinh (Thuy Nguyen); coastal mineral sand can be found (at Cat Hai and Tien Lang).

In respect of non-metal resources: there are kaolin mines at Doan Lai (Thuy Nguyen), clay mine at Tien Hoi, Chien Thang (Tien Lang), several clay points at Kien Thiet (Tien Lang), Tan Phong (Kien Thuy), Dong Thai (An Hai). Limestone is distributed mainly in Cat Ba, Trang Kenh, Phi Liet, Dun terry; quartzite and tectonics can be found in some hills of Do Son area; phosphate at Bach Long Vi, mineral water is available at Bach Dang Commune (Tien Lang). Salt and sand are two important resources of Hai Phong, which are concentrated mainly at river islets and on the sea side of Cat Hai, Tieng Lang, Vinh Bao, Kien Thuy, Do Son districts. In Bach Long Vi island there is asphalt stone, a product of oiled oxidation showing some perspectives of oil and natural gas availability because the continental shelf of Hai Phong occupies one forth of sediment of Third Epoch of the Gulf of Tonkin with the thickness of up to 3,000m.

Sea resources are one of the most important ones of Hai Phong with about 1,000 species of shrimp, fish and tens of kinds of sea weeds of high economic value, such as dragon shrimp, prawn, sea crab, sea tortoise, sea oyster, dolphin, pearl shell, virgin shell, abalone... which are widely popular in the international market. The salinity of seawater is high and stable at Cat Hai and Do Son areas which are suitable for salt production to serve needs of local and central chemical industry and also the need of daily life of people. In Hai Phong seawaters, there are many large fishing grounds and the biggest one is surrounding Bach Long Vi island with more than 10,000 square miles of abundant and stable yield. The tidal flats of coastal areas, islands and river mouths of more than 12,000 hectares are suitable not only for exploitation but also for salty and brackish water aquaculture of high value products.

Land resources of Hai Phong with more than 57,000 hectares of arable land. This land was formed mainly by alluvia transported and deposited by system of Thai Binh river. Due to the location next to the sea, most of the soil is of alum and saline alum nature and the terrain is a mixture of low and high land alternated with many low-lying paddies. The variation of climate negatively affects the soil, land and plants causing additional difficulties for agriculture production, especially plantation.

The forest resources of Hai Phong are abundant and diversified with saline water flood forest, forest for timber exploitation, forest for fruit plantation, bamboo and cane forest... There is also a primeval forest area in Cat Ba with abundant and diversified flora with many rare and valuable botanical species. The total area of forest is about 17,300 hectares, of which about 580 hectares are primeval forest like an Amazon miniature tropical jungle with many valuable and rare plants which are classified as special species for protection, and many herb trees of domestic and international medical specialists' interest; There are many species of bird such as nightingale, parrots, francolin, eagles, sea-gull, swallow,... and many kinds of precious animal such as red face monkey, yellow face monkey, chamois, muntjac, water rat, red-tale squirrel, red-stomach squirrel, lynx, porcupine... specially the white-head monkeys (vooc dau trang - tranchypithecus francoisi policephalus) which live in herds and are classified as a rare species and can be found only in Cat Ba. Sea, Coast and Islands


The sea territories of Hai Phong are part of north-eastern water area of Gulf of Tonkin. The sea bed compositions and oceanographic characteristics of Hai Phong are closely connected to the common characteristics of Gulf of Tonkin and Eastern Sea.

The depth of Hai Phong sea is not large. A depth curve of 2m goes around Do Son Cape and then descends down to 5m far from the coast. At the sea bed where the rivers flow into the sea, the depth is greater due to erosion caused by currents. Further offshore, the level of sea bed descends to the depth of the Gulf of Tonkin of about 30 - 40m. The surface of Hai Phong sea bed is formed by fine components with many deep underwater canals which were used to be river beds and are currently used as daily navigation channels for vessels.

The length of sea coast of Hai Phong is 125 km including the length of coast surrounding the offshore islands. The coast has a form of a concave curve as the common sea side of the Gulf of Tonkin. It is low and quite flat with the structure created mainly by muddy sand coming from the 5 major estuaries. At the center of the coast, Do Son cape stretches out into the sea like a peninsula. This cape is also the end of the range of mountains of Devonian sandstone running from the mainland. The highest point is 125m, and it stretched out 5km into the sea in the direction of North West - South East. This advantage of natural structure has given Do Son a status of an important strategic location in the sea and also a famous spot for its beauty. At the foot of the sandstone hills there are beaches making this place a romantic resort and a valuable convalescent area. In the offshore territory of Hai Phong there are many islands which are distributed over the sea with Cat Ba Island as the largest and Bach Long Vi Island as the furthest.

Sea, coast and islands have created special natural landscapes to this coastal city. It is also a special potential advantage of the economy of Hai Phong.


Hai Phong has a dense network of rivers with an average density of 0.6 - 0.8 km of river per 1 km2. All rivers in Hai Phong are tributaries of Thai Binh River, which flows into the Gulf of Tonkin. Going upstream we can see the followings: Cau river rises from Van On mountainous area of Bac Can at the height of 1,179m, then runs down to Pha Lai to flow together with rivers of Thuong and Luc Nam to create Thai Binh river which flows down into plains for 97 km before flowing into the sea, where it changes its stream to direction of North West - South East.

From place of their confluence, the rivers flow on more and more descending slope and Thai Binh river creates a network of tributaries of various levels such as rivers of Kinh Mon, Kinh Thay, Van Uc, Lach Tray, Da Do... then flows into the sea through 5 major estuaries.

There are 16 major rivers which spread over the entire territory of the city with the total length of more than 300km, including:

- Thai Binh River of 35km long of which main stream flows into the territory of Hai Phong at Quy Cao and then flows into the sea through Thai Binh estuary making a natural boundary between Tien Lang and Vinh Bao rural districts.

- Lach Tray River of 45km long starts as a branch of Kinh Thay River at Kenh Dong and then flows into the sea through Lach Tray River mouth crossing the territory of Kien An, An Hai rural districts and the urban land of the city.

- Cam River of 30 km is a branch of Kinh Mon River that crosses the urban area and flows into the sea through the Cam river mouth. Hai Phong Port has been developed on the area of estuary of this river since the end of 19th century. The Cam River is also the administrative boundary between Thuy Nguyen and An Hai rural districts.

- Da Bach - Bach Dang River of 32 km is also a branch of Kinh Mon River flowing into the sea through Nam Trieu estuary and it is also the boundary between the North and North East part of Hai Phong City and Quang Ninh province. The estuary is wide and deep with magnificent lime-stone mountain crags on the two sides. This place witnessed three glorious feats of Vietnamese Nation in the history of wars against the northern invaders in the 10th and 13th centuries.

- Besides the major rivers there are also many other small and medium river branches which partition the terrain of the city such as Gia River (in Thuy Nguyen district), Da Do River (in Kien An - Do Son), Tam Bac River...

Transportation: Convenience transportation system with 3 types of transportation means:  roadway, railway, and waterway. There are 4 National highway ways of No. 1, No. 56, No. 20, No. 51. The province has 87,5 km of railway with 12 stations create favorable condition for passenger and cargo transportation. The waterway with Đồng Nai and Thị Vải Rivers and 3 ports of Long Bình Tân, Gò Dầu A, Gò Dầu B also make the transportation convenient.


- Power supply system: the local system has been connected to the national grid. The electricity distribution system of 15KV covers over 171 towns, districts and communes in the province territory and can meet the power demands of investors.

- Post and telecommunication system: The province has 66 post offices, 78 electronic switchboards with total capacity of 200,116 subscribers. The actual number of existing subscribers is 169.843, equivalent to 85% total capacity. It is convenient to have direct contacts to national and international system from the province.

- Industrial zones: The Province has 24 industrial zones of: Đà Nẵng IZ (63ha), Đà Nẵng Fishery Services IZ (77,3ha), Hoà Cầm IZ (137ha), Hoà Khánh IZ (423,5ha), Khánh Hoà Expension IZ (316,52ha), Liên Chiểu IZ (373,5ha), etc.

- Water supply: By the year 2007, Dong Nai reached the capacity of 290,000m3/day. It will obtain 485,000m3/day by the year 2010. Its capacity is enough to supply water for inhabitants and industrial projects in industrial parks.

- Communication : Its modern telecommunication allows direct connection with all other domestic provinces and all countries in the world.  There are available services such as mobile phone, fixed telephone for domestic and international call, ADSL, data transmission (DDN, XDSL, Frame Relay, Leased line...), Video Conference, FedEx, DHL, EMS, CPN… etc."
"Sectors’ development plan:


       + Services - Tourism: It is developed with investment in upgrading the existing system of hotels and tourist facilities; Attract investment to effectively exploit the tourist potentiality to diversify the tourist activities; Services: Focus on transportation, logistics in ports and stations, consulting for investment, construction, telecommunication, information technology and financial services etc. to meet increasing demands in the industrial zones , urban areas and local people.


            + Agriculture-Forestry-Fishery: Agriculture: make changes in the structure of plants and animals, diversify the farm production, and connect the farm activities with processing and consuming markets. Forestry: Rapidly proceed on the annual plan of reforestation and handover the land and forest to farmers to strengthen the forest management and create jobs for farmers.


            + Industry: It is developed with focus on key industries of mineral mining, building materials production, mechanical and manufacturing; Improve the local industries of processing of agriculture products, leather and footwear industry, textile and garment; Encourage foreign investment on high tech industries of electricity, electronics, informatics, the industries with less environmental pollutions;  Encourage the traditional household professions to satisfy local demands."

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