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Company Profile

Transpek Industry Limited

A pioneer in thionyl chloride chemistry, and today the largest producer of thionyl chloride and acid chlorides in Asia outside Europe.

Our story

From acrylic sheet to acid chlorides

Transpek Industry Limited, synonymous with Creative Chemistry, was set up in 1965 to manufacture transparent acrylic sheet — and it is from that first product that the name “Transpek” comes.

The company has expanded substantially over the decades since, establishing itself as a major chemical manufacturer and exporter. Our defining competency became the safe, controlled handling of chlorine and sulphur, and the indigenous development of processes for chlorinated chemicals — thionyl chloride first, then a broad family of acid and alkyl chlorides built on top of it.

Today Transpek manufactures products for agrochemical, polymer, pharmaceutical, dyestuff, flavour & fragrance and surfactant customers, and has been present in international markets for three decades.

Location and logistics

Our corporate office is in Vadodara, Gujarat. All manufacturing takes place at our Ekalbara plant, 25 km away. Vadodara sits roughly 400 km from Nhava Sheva seaport and has its own Inland Container Depot, which simplifies export documentation and container movement for hazardous goods.

Certifications & ratings

  • EcoVadis Gold · 2025
    Independent sustainability rating
  • ISO 9001:2015
    Quality management
  • ISO 14001:2015
    Environmental management
  • ISO 45001
    Occupational health & safety
  • ISO 50001
    Energy management, certified by TUV India
  • Responsible Care
    Signatory to the global initiative
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Core competency

The reactions we own

Expertise in handling chlorine and sulphur lets us run reaction types that many manufacturers will not attempt at commercial scale.

Chlorination of inorganic chemicals

The foundation: our own thionyl chloride and the sulphur chlorides.

Acid chlorination with thionyl chloride

Converting carboxylic acids to acid chlorides — most of our catalogue.

Alcohol chlorination with thionyl chloride

Alkyl chlorides and chlorinated ethers from alcohols.

Friedel-Crafts reactions

Aromatic acylation and alkylation for specialty intermediates.

Sulfonation

Drawing on the same sulphur chemistry competency.

Amidation

Downstream conversion to amides where customers require it.

1965
Year founded
29+
Products in the catalogue
6
Industries served
30+ yrs
Decades in international markets
Work with Transpek

A supply partner, not a spot vendor

Backward integration into thionyl chloride is why customers in regulated industries treat us as a long-term partner. Tell us what you need.