About us

Nghe An mineral Joint stock company (NAMCO) Nghe An Mineral JSC, established in 1993 is an enterprise specialized in the areas of exploiting and exporting of CaCO3 products.

We own the Chau Hong white limestone mine at Quy Hop district, Nghe An province, Vietnam. We are proud to possess a quarry site with the reserves of more than 20 million metric tons of white marble. The annual exploitation capacity is 400,000 metric tons. 

We have a grinding plant- Nghe An Ultra-fine white stone powder JSC -at Nam Cam Industrial Zone, Nghi Xa Comunne, Nghi Loc district, Nghe An province. Our CaCO3 products is evaluated of having the best quality in the world which are applied widely in many industries. We commit to give you the best quality at the best prices & service.

 Furthermore, our experienced export teams, who have successfully been handing thousands of shipments to the customers from various countries, are always ready to make every single container and bulk vessel reach you in the time and conditions requested. Currently, we are exporting monthly to Korea, Japan, India and Bangladesh……

Our products are used in paint, plastic, rubber industry etc.. Furthermore, we also supply white limestone chips as the raw material.

Please see our website http://namco.vn  for  your reference.

For our product specifications, please check as follow:

1. Coated and Uncoated Calcium carbonate powder

No.

Name

Particle size (µm)

Chemical analysis

pH Value

  8-9

D97

D50

   CaCO3

 ≥ 98%

Moisture

  ≤ 0,3%

1

BA8

8 ± 1

1,3 ± 0,2

   MgO

 ≤ 0,6%

Brightness

  ≥ 94 %

2

BA10

10 ± 2

1,5 ± 0,2

   SiO2

 ≤ 0,16%

Whiteness

  ≥ 96,5 %

3

BA15

15 ± 2

2 ± 0,2

   Al2O3

 ≤ 0,016%

Oil Absorption

  ≤24ml/100g CaCO3

4

BA20

20 ± 2

3 ± 0,3

   Fe2O3

 ≤ 0,021%

   Specific Gravity

  2,65÷2,7g/cm3

5

BA25

25 ± 2

3,5 ± 0,3

   Na2O

 ≤ 0,16%

Loss at 9000C

  ≥ 42 ÷ 44 (%)

2. White Limestone chips

Grade

Size (mm)

CaCO3 (%)

MgO (%)

Fe2O3 (%)

Whiteness (%)

Grade A

< 50

≥ 98,5

<0,21

<0,15

>95

Grade B

< 50

≥ 98

<0,3

<0,25

>93

Grade C

< 50

<98

<0,5

<0,25

>90

Trade & Market:

v  Main market:

Domestic

North America,

Southest Asia,

Mid East,

Eastern Asia,

Western Europe.

v  Export Percentage: 70%-80%

Factories:

v  Chau Hong white limestone plant

v  Nghia Dan basalt stone plant

v  Dien Chau mineral processing plant