I G Petrochemicals (IGPL) was formally created and deployed as a legal entity in Oct.'88. The company was promoted by Mysore Petrochemicals (MPCL) together with its associate companies in technical and financial collaboration with Lurgi, Germany. It is lead by S S Dhanuka, the Chairman.

IGPL came out with a public issue of 1.06 cr equity shares at par aggregating Rs 10.61 cr in Sep'91. The proceeds of the issue were utilised to part-finance a Rs 61.85-cr 100% EOU for the manufacture of phthalic anhydride with a licensed capacity of 45,000 tpa. The plant is located at Taloja in Maharashtra This is the largest plant for phthalic anhydride in India and compares favourably with international plant sizes of 35,000 tpa. Phthalic anhydride is one of the important industrial chemical which finds application in the manufacture of plasticisers for PVC cables, leather cloth, PVC footwear, etc. It is also used for manufacturing alkyd resins in the paint industry and the production of certain varieties of dyes and pigments.

The first phase of expansion of Phthalic Anhydride plant in the existing plant at Taloja from 45000 to 60000 tpa was completed and the second phase of expansion i.e installation of new Phthalic Anhydride plant of 45000 tpa capacity was completed and trial run production was commenced.

The company was awarded the ISO 9002 Certificate by Bureau Veritas Quality International (Holding) S.A. London, in the year 1999-2000.

Due to fall in price of Pthalic Anhydride in the international market the company incurred a heavy loss in 2001-02 and hence the networth has been eroded and the company has become a Sick unit.