After introducing single super phosphate (SSP) fertiliser in 1962, Adarsh Chemicals went ahead with marketing maleic anhydride (MAN), an import-substitute product, in 1966. During 1975, it implemented a project to introduce 3000 tpa of MAN which was later expanded to 7200 tpa. The expansion was funded by a Rs 17-cr rights issue in Oct.'92 with technical assistance from Scientific Design Co, US, which incorporates Honeywell control systems (installed in 1990-91) for its operations and energy savings. A recent fire resulted in a loss of Rs 2.25 cr. Operations have resumed with the installation of an imported catalyst. Abroad the product is used in polyester resins. In India it is mainly consumed in lubricants, malathion technical (used in anti-malaria products), paints, etc. Adarsh Chemicals started manufacturing 33,000 tpa of SSP, doubled it to 66,000 tpa by the seventies and further enhanced that to the present level of 1.36 lac tpa. A 49,500 tpa sulphuric acid plant was installed in 1983 based on the DCDA process. In 1987-88, an 11,000 tpa oleum manufacturing facility was set up as an integral part of the sulphuric acid plant. The DL maleic acid plant commenced production in Nov.'94. With price decontrol of SSP in 1992, the consumption ratio of nitrogen, phosphastic and potassic was skewed from the earlier 4:2:1 to the present 9:3:1, leading to heavy losses. However, SSP exports to Bangladesh led to the stabilisation of its fertiliser division.