Eu Tong Sen, Ltd. was established up by Eu Tong Sen, the only son of Eu Kwong Pui, the founder of Eu Yan Sang, in early 1930s. It was a property management company that dealt with the developing, buying, selling and renting matters of large amounts of land and property owned by Eu Tong Sen at various locations in Southeast Asia and Hong Kong. Materials include business-related documents such as financial papers, auditor’s reports, bank statements, rent books, tax records, invoices and receipts, letters, artifacts (3 company stamps) etc. and some family items covering the period from late 1930s to mid 1960s. A collection of the correspondence between the company and the liquidator when Eu Tong Sen Ltd. went into voluntary liquidation in early 1960s is also included.