Tuticorin Alkali Chemicals and Fertilisers (TAC) is a member of the SPIC (Southern Petro Industries Corporation) corporate group. TAC manufactures soda ash and ammonium chloride (fertiliser grade). These plants were installed based on the toyo soda dual process in technical collaboration with Hitachi Zosen Corporation, Japan. The salient features of the process adopted are 100% utilisation of chloride and substantial reduction in the effluents discharged from the plant, making the plant eco-friendly. Tuticorin Alkali also produces a range of pesticide formulations. At present, the plant is capable of producing 15 lac ltr of pesticide formulations.

The company has been accredited with the ISO 9002 certification under RVC and NACB (National Accredition of Certification Bodies, UK) for the manufacture and supply of soda ash and ammonium chloride. It is also obtaining the ISO 9000 accredition for its pesticide formulations unit.

A 5000-tpa sodium-bicarbonate plant is under implementation with its own R&D capabilities. The company is also implementing an eco-friendly bio-pesticide pilot plant, based on the technology successfully engineered by Anna University, Madras. TAC plans to double its soda ash and ammonium chloride production immediately. As a backward integration measure, the company proposes to put up a technical-grade pesticides plant.

The Technical Grade Ammonium Chloride Plant with a capacity of 10,000 tonnes per annum was commissioned in October, 2000.