Tata Chemicals operates a fertiliser plant at Haldia that manufactures DAP, SSP and complex NPK fertilisers wherein ammonia is used as one of the feedstock.
Apart from chemicals and fertilisers, the company is engaged in salt manufacturing, retailing of branded pulses and spices, and water purifiers.
In a filing to the BSE, the company said that "the Haldia plant will remain shut from February 21, 2017, to April 15, 2017 on account of ammonia pipeline relocating project hook up and commissioning, along with annual shutdown of the plant for planned repair and maintenance work".
This was done at the directive of Kolkata Port Trust for facilitating setting up a Multi-Modal Terminal Hub at Haldia by Inland Waterways Authority of India (IWAI), the company said.
Tata Chemicals had then said that pipeline re-routing activity would cause a shutdown of operations by about five weeks in September-October due to interruption of ammonia supply to the TCL-Haldia phosphatic fertiliser plant.