In 1975, Ramniklal S. Gosalia’s elder son, Hiren Gosalia joined the business and he helped expand RSG’s base in South India, under his leadership RSG & Co. was appointed as a distributor to Periyar Chemicals Limited, Travancore Titanium Products Limited, etc and products like Sodium Formate, Copper Sulphate and Rubber Coagulating agents were added.
