Nankang Hongfa Mining Co.,Ltd.(Nankang Donghuan Tungsten Products Factory) is located in south Jiangxi province which is called "Tungsten capital of the world". South Jiangxi province is well known in the world for its abundant mineral resources. Our company, established in June of 1996, is a processing industry for nonferrous metal. It purchases, processes and sells tungsten, tin, cuprum, molybdenum, bismuth etc..

Our company owns a total area of 8,000 square meters. The new factory, founded in the spring of 2001, specializes in producing sodium tungstate and ammonium paratungstate. There are workshops of sodium tungstate and ammonium paratungstate in the factory. The old factory, founded in 1996, is about 5 kilometers away from new factory. There are enrichment plants and smelting plants in the new factory which is engaged in the production of bismuth silver alloy and recovery of tungsten gangue.

By the end of June in 2002, monthly production capacity of sodium tungstate had reached 25 tons(content is more than 97%). Products now are sold to pigment manufacturers in Xiaoshan city of Zhejiang province. Products are well received by customers for its stable quality and low price. Supply of products falls short of demand. Our company plans to expand the scale of production and tries to produce sodium tungstate of 40 tons each month.

Our company owns over 50 staff members, 40% of whom are technicians. Our company also has a complete set of strategies for production, management and marketing. Company carries out manager responsibilities system. No accidents arising from one's negligence have happened since the foundation of the company. Our company has been continuously chosen as advanced private enterprise for several times. Liao Zhongfeng, broad chairman of the company has received awards for the following: advanced producer and individual in Ganzhou area, member of the eighth session political consultative conference of Jiangxi province.

Sodium Tungstate

Molecular formula: Na₂WO₄.2H₂O
Content: 97%

Index name	Index %
	Best quality	Common products
WO3	68.5	68.2
Mo	0.01	0.02
As	0.001	0.002
Cu	0.0002
Fe	0.0008	0.001
SO4		0.02
Si	0.004
Insoluble substance in water	0.005	0.01
PH	8.5-9	8.5-9
Metal(Pb)	0.001	0.002
Cl		0.03

Use: Semifinished product for producing tungsten material, also used as intermediates of pigment, mordant,catalyzer, analytical reagent and weight additive.
Packing: 50KG weaving bag.

Ammonium Paratungstate

Molecular formula: 5(NH₄)₂O.12WO₃.5H₂O
Production No.: Best quality, common
Main content: WO₃88.5%
Properties: White crystal
Content of impurity

Product NO.	Top quality	Common products
Impurity content, %
Al	0.0005	0.0010
As	0.0007	0.0018
Bi	0.0001	0.0001
Ca	0.0005	0.0015
Co	0.0005	0.0005
Cr	0.0005	0.0005
Cu	0.0001	0.0005
Fe	0.0009	0.0015
K	0.0009	0.0010
Mg	0.0005	0.0010
Mn	0.0005	0.0010
Mo	0.0018	0.0050
Na	0.0007	0.0015
Ni	0.0005	0.0005
P	0.0006	0.0010
Pb	0.0001	0.0001
S	0.0007	0.0007
Sb	0.0002	0.0005
Si	0.0009	0.0010
Sn	0.0001	0.0001
Ti	0.0005	0.0005
V	0.0005	0.0005

Bismuth silver alloy

Bismuth(Bi): 92%        silver(Ag):0.1%

Tungsten powder

Sodium stannate

1. Black tungsten ore, white tungsten ore and low grade tungsten ore with more than 6% WO₃.

2. WO₃ content of tungsten catalyzer, tungsten fine clay, tungsten cinder and ammonia cinder should be more than 6% WO_3.

Welcome you to come to our company to negotiate business with samples. Our company would like to process tungsten material for your company.

+86-797-6649492(General manager) 6640420(new office)