• Talc
  • Calcium Carbonate
  • Dolomite
  • Hydrated Lime
  • China Clay and Kaolin
  • Bentonite
  • Aluminium Sulphate


Talc is a clay mineral, composed of hydrated magnesium silicate with the chemical formula Mg3Si4O10(OH)2Talc deposits form from the transformation of high magnesium rocks by siliceous hydrothermal fluids.  Most talc originates from the alteration of dolomite, or ultramafic intrusive rocks. Following this process, talc is always found in combination with other mineral(s).

Each talc deposit has a unique morphology and mineralogy, but all talcs exhibit the following unique properties:

These properties make talc a highly prized multi-functional filler and process enabler in an array of applications from plastics to paper, ceramics to paint.

Hitech works with talc from all around the world with main mineral deposits along India, spread across different regions from Dausa to Halwani to Udaipur and all along to the south. We also source our lumps from Afghanistan and Egypt to meet to the absolute epitome in the quality of talc we produce.

Our talc Based Solutions:




Plant And Agriculture:

Our talc when used as Carriers form a critical application in fertilisers and plant protection. Adding talc to active ingredients results in a well-managed release.

Our talc is an excellent natural alternatives to chemicals for protecting fruit from the sun’s rays and disease, Maintaining effective flow and anti-caking agents for fertilizers.

Machinery And Industrial:

Our anti-cacking properties, talc properties, improves the fluidity of the material, helping in keeping equipment clean (minimizing bacteria proliferation), lowers energy consumption, reduces production stoppages, and makes the operator’s job safer.

owing to its strengthening capabilities. Talc is used in domestic appliances, automotive components such as bumpers and dashboards.

Our Talc’s smoothness is appreciated in products that require suppleness for a smooth and regular effect, must be robust, but at the same time softer than the paper.

Talc’s adsorption properties are also valuable in the treatment of waste water by the activated sludge method. Providing an adequate support surface, talc platelets actually “ballast” the bacteria used in such treatments, thereby improving sedimentation and avoiding the release of bacteria in the final clean effluent.


Our Talc, when used as a thickener influences the viscosity of water- and solvent- based formulations. Talc increases covering power, improves flow and prevents settling, improving the adhesion and final mechanical properties of the coating. Talc enables paints, with the necessary low viscosities, to be formulated with significantly less organic solvents controlling sedimentation rates during storage.

Our talc is also the principal ingredient in putties, improving adhesion and standability.

In paints and coatings, our talc forms an ideal, natural solution for replacing less environment-friendly TiO2 and for improving the mechanical and optical properties of coatings.


Talc is used as a lubricant in pharmaceuticals . Talc also facilitates the ingestion of solid drugs. Talc also helps mould and demould pills.

The chemical inertness of talc is of obvious interest for carrier applications. talc also has the advantage of not generating bacterial growth and of releasing fragrances progressively.


Certain foodstuffs or conveyor belts are also powdered with talc, to excellent effect, Owing to its anti-sticking agent. It finds a wide application in chewing gums and chocolates. Also used as strengthening agent in food packing.


Talc because of its inert, soft and oleophilic nature, it is used as a filler in detergents and soaps.

Animal Nutrition:

Talc is extensively used in animal feed. It wraps each feed particle, setting up a natural barrier that stops moisture escaping from or entering the treated feed.


Talc powdering of moulds is widely used for example in tyre manufacturing Talc is also used as a semi-reinforcing filler in rubber.


Talc powdering of moulds is widely used for example foundry applications because if its slippery nature. It reduces firing time and temperature.


Talc’s adsorption properties, are key in a number of applications, particularly pitch control in paper making where talc is used to absorb organic impurities  which are sticky.

Talc also greatly improves printing runnability.

As a filler in paper, it increases smoothness and machinability, reduces friction, abrasion and porosity.

In paper coating, it helps to improve ink transfer, finish feel and legibility of printing

In the pulp and paper industry, our talcs are excellent solutions for avoiding deposits enabling mills to work in closed water circuits and to optimize prime resources


Talc’s properties bring benefits to ceramics (household, construction, refractory and technical).

It reduces firing time and temperature, improves vitrification and consequently the resistance of the ceramic. Talc also improves thermal shock resistance, particularly important in catalytic exhausts.

Used in ceramic tiles and sanitary ware, our talc improves the vitrification process, allowing producers to reduce firing temperatures and shorten firing cycles.

Calcium Carbonate

Calcium carbonate, or CaCO3, comprises more than 4% of the earth’s crust and is found throughout the world.  Its most common natural forms are chalk, limestone, and marble, produced by the sedimentation of the shells of small fossilized snails, shellfish, and coral over millions of years.

Curious about Calcium Carbonate?

Ground calcium carbonate or GCC is another primary type of industrial product. As the name implies, it involves crushing and processing limestone to create a powdery-like form graded by size and other properties. It is used for many different industrial and pharmaceutical applications.

Calcium carbonate, used for industrial purposes, is extracted by mining or quarrying. Pure calcium carbonate is also prepared by passing carbon dioxide into a solution of calcium hydroxide. Calcium carbonate derived from the mixture, forming a grade of product is called “Precipitated Calcium Carbonate,” or PCC. PCC has a very fine and controlled particle size, on the order of 2 microns in diameter.

The other industrially used calcium carbonate coated with stearate, is known as Activated calcium carbonate or ACC.

Which properties make our Calcium Carbonates highly multi-functional?

Global Footprints

HTMC has expanded its base not only PAN-India, but it also has diversified globally, incorporating locations such as, Vietnam and Egypt.

Our offerings and Industrial Applications

HTMC bring to its clients a range of grades for calcium carbonate:

Usage across Industries




Pharmaceuticals and health care:

Calcium Carbonate processed at HTMC finds its application as an excipient used for delivering effective dietary calcium supplement, antacid, phosphate binder, or base material for medicinal tablets.

Respirable precipitated calcium carbonate is now being used in diapers and medicinal gloves.

PCC at HTMC is designed to cater to the toothpaste industries abundantly with all manufacturing practices in accordance with GMP,FDA,FSSAI and other accreditations.

Food Production:

Calcium carbonate from HTMC is renowned for its use as a firming agent in many canned and bottled vegetable products and is a strong additive for foods.

Calcium carbonate, is the purest form of mineral that is added to increase the calcium content in foods.

Pipes and PVC’s:

The use of ACC, activated calcium carbonate, i.e. coated with stearate, developed at HTMC  has found its enormous application in unplasticized polyvinyl chloride, drainpipes and window profile.

Calcium Carbonate produced at HTMC is used in PVC cables. They are used for loadings of up to 70 to improve mechanical properties and its durability in wire cables.


Calcium Carbonate from HTMC has wide applications in ceramic glaze,as whiting agent and is a common ingredient for many glazes in its white powdered form.

Opacifier and Extender:

Nano PCC, engineered at HTMC is being used as an opacifier in the glass sheen and metallic components and finds its heavy application in steel machinery.


As a reinforcing filler, Calcium Carbonate grinded at HTMC improves strength as well as whiteness and imparts stiffness to non-cured rubber product maintaining durability and hardness of shoe souls.


Calcium Carbonate developed at HTMC, improves the heat resistance, size stability, and hardness of the base material. As a filler it is still used in the greatest quantity in the rubber industry. The Calcium Carbonate from HTMC increases tensile strength, abrasion resistance, and tear resistance even more than what vulcanization does.

Paints and Coatings and Putty: 

Paints and Coatings industries use Calcium Carbonate from HTMC as both filler and extender. Due to its special white colour, it is also used as a coating pigment. Calcium carbonate developed at HTMC is also used widely as a filler in adhesives, and sealants. Used as multifunctional fillers that improve whiteness, opacity and matting, they make ideal replacements for titanium dioxide, as a cost-effective option.

Calcium Carbonate developed at HTMC  is also mixed with putty in setting stained-glass windows. It is also used as a resistant to prevent glass from sticking to kiln shelves, when firing glazes and paints at high temperature.


Calcium carbonate from HTMC is the most widely used mineral in paper manufacturing. Valued for its high brightness and light scattering characteristics, it’s used as a filler to make bright opaque paper. The mineral allows the paper to be bright, smooth, and glossy in appearance. Our PCC has a lighter and uniform particle size, that enhance its texture and appearance.


Dolomite is a common rock-forming mineral. It is a calcium magnesium carbonate with a chemical composition of CaMg (CO3)2.  Dolomite is referred to as magnesian limestone. Its colour range varies between colourless to white, pale brown, greyish, reddish, or pink mineral. Dolomite is found in hydrothermal veins associated with lead, zinc, and copper ores.

Calcite is the principal constituent of  Limestone and Marble. These rocks are extremely common and make up a significant portion of Earth’s crust. They serve as one of the largest carbon repositories on our planet. Calcite, the most common form of natural calcium carbonate (CaCO3), is a widely distributed mineral known for the beautiful development and great variety of its crystals.

Properties that differentiate HTMC’s Dolomite and Calcite

Sourcing Strength

HTMC Sources it Lumps with the best whiteness, from Jhiri, Alwar and Udaipur. HTMC Has a strong presence in southern part of India with grinding locations up to 1,00,000 sq. feet, and with the dedicated infrastructure to produce 1,500 Mt per day.




Iron And Steel:

Dolomite grinded at HTMC finds a huge application in iron and steel industry due to its strength and compatibility in the process of purifying Iron and Steel.


Dolomite powder from HTMC finds usage in the detergent and soap industry owing to its whiteness and purity. Dolomite is less reactive and also exhibits good acid resistance which makes it a demanded mineral in various industries.


Calcite and dolomite produced at HTMC are used as a coagulant or stabilizer to prevent after precipitation of calcium carbonate from lime-softened water.


Calcite and dolomite developed by HTMC, are used as aggregate in Portland cement concrete for roads, buildings, and other structures and in combination with bituminous materials for roads and similar construction.


Calcite or dolomite from HTMC in the raw state, or when burned to lime, is an important constituent of the “batch” from which glass is made.


Calcite and Dolomite, grinded at ball mills, are applied to soils for correcting soil acidity, for adding calcium and magnesium, improving soil structure, maintaining or promoting favourable conditions for the utilization of soil nutrients by plants, and for the growth of desirable soil organisms.


Dolomite has been used as a source of calcium and magnesium for animal feeds since a long time. Calcite by HTMC is used in animal models, as a rich nutritional supplement.

Hydrated Lime

Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca(OH)2. It is a colorless crystal or white powder and is produced when quicklime (calcium oxide) is mixed or slaked with water. It has many names including hydrated lime, caustic lime, builders’ lime, slack lime, cal, and pickling lime., Hydrated lime (calcium hydroxide) is a dry, colorless crystalline powder manufactured by treating calcium oxide (quicklime) with water, in a process called “slaking.”

Hydrated Lime from HTMC:

HTMC manufactured hydrated lime is well equipped for food and pharma applications, basis its productions in SS vessels with complete m




Ferrous and Non-ferrous Metal Mining Industry:

HTMC manufactured hydrated lime Adjusts acidity of wastewater and used as a chemical in mineral dressing process.

Sugar Industry:

Hydrated Lime manufactured by HTMC Remove impurities found in raw sugar and white sugar.

Bioplastics Industry:

HTMC specialises in hydrated lime which is used as a Component in the fermentation of sugar and tapioca which are the basic ingredients in making bioplastic.

Iron and Steel Industry:

Removal minerals or impurities during a process of metal smelting, and production of high quality steel that uses a furnaces is a specialized form of Hydrated lime from HTMC.

Chemical and Petrochemical Industry:

HTMC manufactures hydrated lime used as Ingredient in production of basic chemicals, such as soda ash and calcium carbide.

Agricultural Industry:

  • HTMC’s Hydrated Lime forms a wide array of applications in:
  • Improve soil quality, adjust soil acidity.
  • Neutralize acidity of shrimp farms.
  • Added to increase calcium in animal feed.

Flue Gas and Water Treatment Industry:

  • Hydrated Lime from HTMC is used to:
  • Expel sulfur dioxide gas that arises from electric power and waste incineration plants
  • Aid in the flocculation of small particles of sediments, and eliminate or lessen hard water to produce clear water

Construction and Construction Materials Industry: 

  • HTMC Manufactured hydrated lime is:
  • Used as raw material in the manufacturing of cement, light weight bricks, autoclaved aerated concrete and other construction materials.
  • Used as ingredient to improve the qualification of plaster / mortar.
  • Adjust soil condition before construction work.

Food Industry:

HTMC manufactures hydrated lime of its low toxicity and the mildness of its basic properties, slaked lime is widely used in the food industry.

Kaolin and China Clay

Rocks that are rich in kaolinite are known as kaolin or china clay. Kaolin or China Clay is soft, earthy, and usually white in colour. It is a type of hydrated aluminium silicate crystalline mineral formed over many millions of years by the hydrothermal decomposition of granite rocks. HTMC Manufactures kaolin of various types, including the widely popular Hydrous kaolin, and Calcined Kaolin.

Know Your Kaolin

Chemical composition of Kaolin/China Clay:

Physical Properties

What is Calcination?

Calcination is the chemical process that increases whiteness and hardness of the kaolin particles, improves their electrical properties, and alters their size and shape.

Ensuring Excellence

Kaolin/China Clay manufactured at HTMC are used in a multiplicity of industries because of its unique physical and chemical properties. While HTMC pays attention to the various physical properties, such as shape, particle size, colour, softness, non-abrasiveness, and more, we also consistently monitor the numerous chemical properties, including a comparatively low base exchange capacity, chemical properties of the kaolin surface, relative insolubility, etc.

Processing Perfection

HTMC sources its kaolin from the superior pits in order to meet our clients’ requirements and to assure a 100% quality satisfaction. We have 2 manufacturing sites in India that manage our China clay production of both hydrous and calcined grade. We enforce constant supervision of moisture content during the manufacturing as an integral parameter, and proudly claim to manufacture China Clay with less than 0.5% moisture.

Our Industrial Solutions

HTMC is proud to offer a wide range of innovative and sustainable engineered kaolin-based solutions to help optimize performance across several industries, as mentioned below:





HTMC-Customised kaolin finds an integral application in paper manufacturing, especially in coated paper, because of its improved surface functionality when used as fillers or coating pigments. It enables papermakers to cut costs and foster more sustainable processes. HTMC-made china clay is utilized to impart gloss, smoothness, printability and improved barrier performance in paper and packaging applications. 


The high fusion temperature and white firing characteristics of HTMC-Engineered grade of China Clay make it particularly suitable for the manufacture of sanitaryware, tableware, wall and floor tiles and refractories. 


Kaolin processed by HTMC are used as 100% natural ingredients for face creams, face masks and cosmetics. They are appreciated for their superior capabilities of mattifying skin, and absorbing sebum and other impurities. HTMC Guarantees a 100% nil presence of asbestos and cadmium and adheres to all safety standards and limits for its usage in the cosmetic industry.


HTMC-Regulated china clay and calcined kaolin are found to improve the mechanical properties, porosity and appearance of various types of concrete and cement, providing an excellent alumina source for the production of fiberglass.


China Clay is an excellent natural opacifier and a partial replacement for titanium dioxide. HTMC-Designed Kaolin has been proved time and again to stand on these parameters and acts as an ideal additive in high gloss paints. HTMC-mechanised Kaolin is also used as an extender and flattening agent in paints.


Kaolin-grades processed at HTMC  are used for filling rubber to improve its mechanical strength and resistance to abrasion.


Kaolin manufactured at HTMC facilities is used by reputed pharmaceutical manufactures for treating ailments, such as, mild-to-moderate diarrhoea, severe diarrheal (dysentery), and cholera. HTMC-made kaolin is also used to relieve soreness and swelling inside the mouth caused by radiation treatments. It also acts as a filler, as lubricants in manufacturing pills; disintegrants; anticaking and thickening agents; binders and diluents; emulsifiers; and carriers of biologically active molecules for improving drugs bioavailability

HTMC is proud to present its grades in terms of light, IP/BP/EP/JP/USP Grades.

Soap And Detergents

HTMC-Curated Kaolin is used essentially as a filler in soap production. It also gives the structure and acts as a riser, but the most important function of kaolin is to reduce cost of production.


Bentonite is an aluminum phyllosilicate clay, composed of montmorillonite with the chemical formula(Ca,Na)0,3(Al,Mg)2Si4O10(OH)2 ·n H2O. .A very soft plastic clay, bentonite predominantly consists of montmorillonite, a fine particle sized hydrous aluminium silicate, a member of the smectite group. Bentonite beds are white, pale, blue or green in fresh exposures, turning to a cream colour and then yellow, red, or brown as the exposure is weathered further. As a swelling clay, bentonite has the ability to absorb large quantities of water, which increases its volume by up to a factor of eight. This gives the clay a very large total surface area, making bentonite a valuable item.

Physical Properties

Our Products

HTMC is a pioneer when it comes to Bentonite and has several manufacturing locations in India, attributed to its bentonite production for various industries according to their utility.

Different Bentonites and their Benefits

Sodium Bentonite

Sodium bentonite expands when wet, absorbing as much as several times its dry mass in water. Because of its excellent colloidal properties, it is often used in drilling mud for oil and gas wells and boreholes for geotechnical and environmental investigations.

Calcium Bentonite

Calcium bentonite is a useful adsorbent of ions in solution, as well as fats and oils. It is the main active ingredient of fuller’s earth, probably one of the earliest industrial cleaning agents.

Potassium bentonite

Also known as potash bentonite or K-bentonite, potassium bentonite is a potassium-rich ‘’Illite’’ clay formed from alteration of smectic clay. ‘’Illite Clay’’ is a high-charge TOT clay mineral, in which sheets are bound relatively strongly by more numerous potassium ions, and so it is not a swelling clay and has few industrial uses.

Industrial Applications





Bentonite, manufactured by HTMC, is used as a bonding material in the preparation of moulding sand for the production of cast iron, steel, and non-ferrous casting. The unique properties of bentonite yield green sand moulds with good flowability, compact ability, and thermal stability for the production of high-quality castings.


Owing to its rheological properties and thixotropy of aqueous suspensions, Bentonite, custom-engineered by HTMC is used as a mud constituent for oil and water well drilling. Its functions are utilized mainly to stabilise the borehole, seal the borehole walls, and remove drill cuttings.


Bentonite slurries, prepared by HTMC are used in the construction of special foundations for digging diaphragm walls and bored piles. In geotechnical engineering, Bentonite, designed by HTMC is used for self-hardening mixtures employed to build cut off walls, grouting mortars, and grouting. Finally, bentonite waterproofing properties are best exploited in environmental engineering, to seal off soil infiltrations, and to line the base of landfills. 


Bentonite developed by HTMC, has established its use as an animal feed supplement. Under European regulations, it is classified as a food additive, with E number E558. Bentonite developed by HTMC is used as a pelletizing aid in the production of animal feed pellets. Due to its high adsorption power, it is particularly effective against mycotoxins. 

Cat litter

Owing to its swelling, and anti-odour properties, as well as the advantage of absorbing refuse by forming clumps, Bentonite is custom created to find application for cat litter.

Water treatment

Due to its ion exchange, flocculation, and sedimentation properties, bentonite manufactured by HTMC is used in environmental protection for water clarification, and as an aid to polyelectrolytes and inorganic flocculants.


Bentonite, custom curated by HTMC is used as an ion exchange for soil improvement and conditioning. It also finds an application for gardening in soil compounds and mixtures to absorb humidity, and as a carrier for various herbicides and pesticides. 


Bentonite, engineered at HTMC is used to enhance ceramic paste plasticity and as an anti-settling agent in ceramic enamels.


Bentonite grinded at HTMC is used to improve the efficiency of conversion of pulp into paper, as well as for paper quality improvement by preventing rubber particle agglomeration. Owing to its absorbing property, it offers useful de-inking properties for paper recycling

Pharmaceuticals, cosmetics, and spa mud therapy

Bentonite manufactured at HTMC is used as a filler in pharmaceuticals. For its absorption/adsorption functions it also finds its integral application in creams, face-powders, and spa mud preparations. 

Detergent additive

Bentonite designed by HTMC is widely used in detergents to soften the fabrics. Liquid cleansers/soaps rely on the inclusion of bentonite from HTMC  as a suspension agent and viscosity enhancer. 

Paints and varnishes

HTMC Manufactured Bentonite functions as a thickening and/or suspension agent.

Aluminium Sulphate:

Aluminium sulphate, normally recognized as alum is a solid crystalline powder that is dissolvable in water. It includes over 17% alumina (Al2O3) and is produced from sulphuric acid and aluminium trihydrate. Aluminium sulphate is also obtained as an 18-hydrate Al2(SO4)3.18H2O. Both forms are soluble in water, non-combustible, and nontoxic.

What are the Properties of Aluminium Sulphate?

Production and Quality Control

HTMC Group works in strong cooperation with reputed brands to source its Raw Materials for the best quality Aluminium Sulphate Production. We closely monitor our manufacturing facilities for providing assurance of topmost quality to our clients. We also keep a stringent check on our heavy metal concentrations and on our internationally accredited inhouse labs.

Industrial Application of Aluminium sulphate




Water & Effluent Treatment: 

HTMC-Manufactured Aluminium sulphate is used for purification of drinking water and wastewater treatment. It settles impurities by making suspended impurities to coagulate into larger particles and then settle to the bottom of the container.

Textile Industry:

HTMC-Produced aluminium sulphate is widely used for colour fixing. It is also used as mordant in Naphthol based dyes for printing and dyeing of cotton fabric.


Used in the manufacturing of mild astringent and antiseptics for skin treatment, HTMC follows and adheres to all norms for the production of IP/BP/USP Grade of aluminium Sulphate


HTMC works closely to manufacture  Aluminium Sulphate used as a filling and binding agent in the manufacturing of bar soaps.

Paper Industry

HTMC-Produced Alum helps in sizing of paper at neutral and maintaining alkaline pH, thus improving paper quality (reducing spots and holes and improving sheet formation and strength) and sizing efficiency.


In the construction industry, HTMC-Manufactured aluminium sulphate is used as a waterproofing agent and as an accelerator in concrete. Another use is as foaming agent in fire- fighting foam.

Personal Care

Aluminium sulphate, produced by HTMC is used as deodorant, an astringent, or as a styptic for superficial shaving wounds.


It is used in the human food industry as a firming agent, where it takes E520, and in animal feed as a bactericide. HTMC actively works under FSSAI Guidelines to cater to the food industry.