Incorporated in Sep.'86 as a private limited company, Dintex Dyechem was subsequently converted into a public limited company. It is promoted by Dinesh Shah. The company is engaged in the manufacture of dyes and dye intermediates at Vatwa, Gujarat. Commercial production commenced in 1986. In 1993, the company diversified into the manufacture of vinyl sulphone (inst. cap. : 1800 tpa) for captive consumption, export and domestic sales and also expanded to manufacture reactive dyes (inst. cap. : 600 tpa). It came out with a public issue in Aug.'93 to part-finance the diversification project. Commercial production of vinyl sulphone commenced in Sep.'93 and that of reactive dyes commenced in Mar.'94. In 1993-94, the company entered the drug-intermediates line by producing acetyl sulphonyl chloride (ASC) and sulpholemide with an installed capacity of 50 tpm, which was increased to 100 tpm in 1995. During 2001-02 the company launched 70 new dyes in the domestic market and is expecting a satisfactory returns in the years to come.