Square Pharmaceuticals is a reputed pharmaceutical company in Bangladesh . [1] In 1958 [2] Samson H. Chowdhury and three of his friends founded Square Pharmaceuticals. It went public in 1991 and was listed on Dhaka Stock Exchange and [3] Chittagong Stock Exchange (ID of SPL: 13002). [4] [5] Square Pharmaceuticals started exporting various antibiotics and medicines worldwide since 1987, and currently they are exporting medicines to 42 countries around the world. [6]