Tata Chemicals, a leading manufacturer of chemicals, fertilisers and food additives, moved up by nearly six per cent following the announcement by the company of an overseas acquisition. Tata Chemicals announced that it has entered into two separate agreements for acquiring a majority stake in a U.K. based chemical Company, Brunnner Mond Group Ltd, subject to certain terms and conditions. The investment in Brunner Mond Group Ltd. may be made directly or through a subsidiary/associate of the Company. The stock closed at Rs 215.75 up by nearly twelve rupees.