Tamil Nadu Minerals Ltd. popularly known as TAMIN, is a wholly owned blue chip company of the Government of Tamil Nadu . Started in 1978.

TAMIN is engaged in the exploitation, processing and marketing of granite and other minerals such as limestone, vermiculite, quartz, feldspar, silica sand, fire clay, graphite etc.

TAMIN entered the international granite market in the year 1979 and has secured a steady market for dimensional blocks of black and other colour materials in countries like Japan, Germany, Italy, Australia, UK, Switzerland, Holland, USA etc.

TAMIN also exports polished granites, building slabs and tiles in several attractive colours, wall panels and monuments of various designs.

TAMIN has also been marketing granite cubes with sides measuring 6 cm to 12 cm.

TAMIN has excellent international market presence as an exporter of quality products. It has a number of reputed international client such as M/s. Orient Sangyo Kaisha Ltd., Japan, M/s. Mitsubishi Corporation, Japan, M/s. Marble Corporation, Japan, M/s. Nissho Iwai Corporation,Japan, M/s. Naturstein Verkaufs GMBH, Switzerland M/s. Magti Marble and Granite Trading Inc. Italy, etc. who are steady customers for long.

TAMIN has been receiving annual CAPEXIL awards for the last five years based on its excellent export performance.

TAMIN has got substantial quarrying rights of granite in Tamil Nadu. The granite deposits are rich in black and colour varieties and are among the best in the World.

TAMIN has earned a niche for itself in the world granite market. TAMIN's pride and buyers' choices are Black, Kashmir white, Paradiso, Sivakasi yellow, Redwave and Raw silk dimensional blocks. The black granite of Kunnam is comparable to Ebony black of Sweden. It has been fetching high value in international market. TAMIN's Paithur black granite ( with a brown background ) is also acclaimed as the choicest variety in international market. Paradiso material ( introduced by TAMIN ), is unique in colour and pattern and is exported in large quantity to Italian and German markets. TAMIN's Kashmir white is the best of it's kind in the world and it commands high values. TAMIN's green onyx is a rare and unique material and it has caught the fancy of most of the European countries. Apart from this, TAMIN has other colour material like Redwave , Colombo jubrana, Sivakasi yellow and Raw silk, which are preferred by traditional buyers.



Black Granite is a variety of basic rock, geologically known as Dolerites. It takes very high polish, displaying uniform grain size and Equigranular texture. The rock can be cut into thin slabs.

Uses :
Monuments, memorials, wall facings, base of heavy machineries surface plates, slag draining channel for Iron & Steel industry etc. Exported to Japan, West Germany, Italy, Italy, Australlia.

Grey Granite is an acidic rock with Gneissic fabric. The colour of the rock depends upon the colour of the constituent feldspar. It takes very high polish.

Uses :
Wall facings and decorative building material. Exported to West Germany, Italy and Australia.

TAMIN has two sophisticated granite processing units viz. one at Chennai (Manali) producing building slab and monuments and other at Madhepalli near Krishnagiri where granite tiles of various colours are produced. Each unit was set up with an investment of Rs. 65 million.

TAMIN granite factory, Manali was formerly a 100% EOU and now it caters to the domestic market also. This unit is well equipped with modern machineries for producing finished products to the international standard. The annual capacity of the granite processing is 50,000 Sq.mtrs. of slabs of 2 and 3 cm, thickness and 10,000 Sq.mtrs. of monuments. Machinery's like gang saw, circular saw, automatic grinding and polishing machines, imported from Germany are used for producing granite slabs and monuments. Apart from this, TAMIN is also making kitchen top, table top, teapoys, telephone stand etc. for local market at reasonable and affordable prices.

TAMIN Tile Plant at Madhepalli is a 100% EOU. The plant has modern and sophisticated imported machinery for precise finish of products. The annual capacity of the plant is 21,300 Sq.mtrs. The plant has facilities to produce 30x30 cm., 30x45 cm., 45x45 cm., 60x30 cm., 60x45 cm. Tiles with a thickness of 10 mm and 12 mm. All tiles are calibrated to precise dimensions.

TAMIN cube cutting plant is situated near Krishnagiri. The imported hydraulic splitting machines are used to split blocks into required thickness of cubes from 6 cm. to 25 cm. for use as pavement stones in garden, commercial complex environs and as kerb stones in highway etc. TAMIN produces granite cubes ranging from 6 cm. to 25 cm. conforming to world standards. The total installed capacity is 3000 tonnes per annum.

TAMIN is has an exclusive show room for Granite Finished Products at Chennai to help the local customer / builders / architects to get TAMIN's product at very reasonable and affordable price.

Finished Granite products like Telephone Stand, Sink, Teapoys, Table Tops, Kitchen Tops, Chappatti Plate etc. produced by TAMIN have been displayed in this Show Room so as to enable the customers to choose the products as per their need.

Show Room Address :

"Jamals Sonu Terrace",
No. 109, 100 feet Road,
Choolaimedu
Chennai - 600 094.
Phone No.: 044-3611135

(Hydrated aluminium sillicate of Calcium, Megnesium, Iron and Alkalies)

It is an insulation mineral, poor conductor of heat and electricity. Raw vermiculite expands to 14 times on heading about 850 degree Celsius. Expanded Vermiculite is light weight (low bulk density) and chemically inert.

Raw Vermiculite	Exfoliated Vermiculite

Volumes of expansion on heating: 14 times (average)

Exfoliated Vermiculite Plant :

Vermiculite Exfoliation Plant is located in Ambattur Industrial Estate, Chennai. Capacity - 600 MTs/Annum

Exfoliated Vermiculite finds use in Agriculture and horticulture and also in dry crops as a carrier of water, pesticide and fertilizer and herbicide.

It also finds industrial application in the form of insulation bricks and particle boards and electrical and thermal insulation.

To create awareness among farmer community and general public on the use of exfoliated vermiculite in Agriculture and Horticulture areas.

The Sivaganga graphite is of flaky variety with 14% average Fixed Carbon used in the manufacture of refractory bricks, expanded graphite, crucibles and carbon brushes.

TAMIN has over 600 acres of graphite bearing land in Pudupatti, Kumaripatti and Senthiudayanathapuram of Sivaganga taluk, Sivagangai District, Tamil Nadu.

Estimated reserve of graphite ore in leasehold area is three million tonnes (recoverable graphite from 14% F.C is approximately 3 lakh tonnes).

Moisture Content 0.2% to 0.5%

Graphite Fixed Carbon
Description	86-89%	90%	91%	92%	93%	94%	95%	96%
Volatile Matter(Max)	2.0	2.0	2.0	1.8	1.8	1.5	1.0	1.0
Ash Content(Max)	12.0	8.0	7.0	6.2	5.2	4.5	4.0	3.0

Mesh(BSS)	Weight Percent Flakes
+72	20-25
-72+150	40-45
-150+200	10-15
-200	25-30

Graphite finds application in the manufacture of Mag - carbon refractory bricks for lining furnaces. Graphite crucibles for melting non-ferrous metals. Carbon brushes, Paints, Lubricants, Graphite brake lining and clutches for automobiles Pencils are produced from TAMIN Flaky graphite.

TAMIN is the only Company Supplying Indian Standard Sand as per B.I.S. approval to various cement factories, research laboratories etc. for testing the quality of cement. The factory is situated at Ennore 15, km. North of Chennai. The processed sand is marketed in three grades. TAMIN has modernized the factory.

Technical Details :

• Colour : Greyish white
• Specific gravity: 2.64
• Absorption in 24 hours: 0.80%
• Shape of grains : Subangular

Chemical analysis

• SiO2 : 99.30%
• Fe2O3 : 0.10%
• Loss on extraction with hot Hcl: 0.11%

• Quartz 97.40%
• Feldspar 2.50%

• Grade Particle size Percentage
• Grade-I Less than 2mm and greater than 1mm 33.33%
• Grade-II Less than 1mm and greater than 0.50mm 33.33%
• Grade-III Less than 0.5mm and greater than 0.09mm 33.33%

TAMIN exploits good quality quartz and Feldspar.
TAMIN's L.N.Patti quartz is one of the best varieties in the world.

Quartz

Feldspar

Analysis :

• SiO2 99.89%
• Fe2O3 0.08%
• TiO2 0.02%

Uses :
In the manufacture of abrasives Glass and Ceramic wares.

Analysis :

• SiO2 65.01
• FeO2 0.11%
• Al2O3 18.98%
• Na2O 3.40%
• K2O 12.49%

In the manufacture of Porcelain Wares.

Important Phone Numbers Chairman & Managing Director Phone: 91-44-28524563, 91-44-28525113 Manager (Projects) Phone: 91-44- 28536004 Manager (Marketing) Phone: 91-44-28536010 Deputy Manager (Marketing) Phone: 91-44-28413687 Industrial Units of TAMIN The Works Manager TAMIN Graphites Benefication Plant Senthi Udayanathapuram Village, Sivaganga - 623 560 Phone: 91-4575-237244, 91-4575-237538 The Manager TAMIN Granites, 251, Manali-Ponneri Road, Manali, Chennai - 600 068. Phone: 91-44-2594 1277, 91-44-2594 1012 Email:tgm@vsnl.net The Factory Manager, TAMIN Granite title Plant, Konimedu, Madhepalli, Krishnagiri TK. - 635 108. Dharmapuri District. Phone: 91-4343-265579, 91-4343-265671 The Divisional Manager, Indian Standard Sand Unit, 16, Kathivakkam High Road, Ennore, Chennai - 600 057. Phone: 91-44-25733738 E Mail:taminennore@vsnl.net The Works Manager, Vermiculite Exfoliation Plant, 94-C/1, Third Main Road, Industrial Estate, Ambattur, Chennai - 600 058. Phone : 91-44-26358588

Divisional Offices of TAMIN The Division Manager, 246, Thirunavukarasu Nagar, Attur : 636 102. Phone : 91-4282-2640876 E Mail :taminatr@eth.net The Division Manager, Kanimedu, Madhepalli, Krishnagiri TK. - 635 108. Phone: 91-4343-266359 The Division Manager, Door No.: 65/5, Giri Street, Kavery Nagar, Kulithalai - 639 104. Phone: 91-4323-2624711 The Manager 41, Channel Road, Melur - 625 106. Madurai District Phone : 91-452-2415436 The Division Manager, 15, 10th Cross Street, Gandhi Nagar, Thiruvannamalai - 606 601. Phone : 91-4175-2225979 The Division Manager, 10/4-83, Nehru Nagar, Mettur Dam - 636 402. Phone : 91-4298-2322254 The Division Manager, Race Course Road. Khaja Nagar Post, Tiruchy - 620023. Phone : 91-431-2423432 The Division Manager, 16F, Majeeth Koil Street, Pennagaram - 636 810 Dharmapuri District Phone: 91-4342-2255644 E Mail :taminpng@eth.net The Division Manager, No. 124, Kongu Nagar First Street, Municipal Colony Road, Veerappan Chathiram, Erode - 633 004. Phone : 91-424-2225999 The Division Manager, 8/1, 4th Street, Gopalapuram, Katpadi, Vellore - 600 006 Phone : 91-416-2248737