Oriental Carbon and Chemicals Limited (OCCL), a company belonging to the Duncan JP Goenka group of companies, traces its origin to 1978 when it was incorporated as Dharuhera Chemicals Limited (DCL). In 1994 OCCL set up a unit for manufacturing of Insoluble sulfur which later emerged as the star product of the group.

• 1978 - Incorporated as Dharuhera Chemicals Ltd to manufacture Sulfuric Acid


• 1978 - Sulfuric Acid production started


• 1984 - Merged with Oriental Carbon Ltd to form Oriental Carbon & Chemicals Ltd


• 1994 - Insoluble sulphur operations started


• 1998 - High StabilityGrades introduced


• 2000 - Disinvestment of carbon Black Division


• 2001 - AS Grade Developed


• 2002 - Establishment ofR and D Department


• 2003 - High DispersionGrade developed


• 2005 - Establishment of a second line at Dharuhera


• 2007 - Custom made grades introduced


• 2009 - Construction of Mundra plant started


• 2011 - Completion of Mundra Plant