Singapore-based traditional Chinese medicine (TCM) company Eu Yan Sang - a brand founded 144 years ago - is set to be acquired by Japan’s Mitsui & Co and Rohto Pharmaceutical. The deal is valued at S$800 million and expected to be completed by June. BT looks at the history of the company and how it grew from a single medicine shop to over 170 retail outlets in China, Hong Kong, Macau, Malaysia and Singapore.