[1] It was founded in 1958[2] by Samson H. Chowdhury along with three of his friends PK Saha, Kazi Harunur Roshid and Radhabinod Rai as a private firm.

Square pharma went public in 1991 and is listed on the Dhaka Stock Exchange[3] and on the Chittagong Stock Exchange (ID of SPL: 13002)[4] Square Pharmaceutical started to export different antibiotics and medicine across the world from 1987.

[5] In 2008 and 2009 it had the highest market share in the pharmaceutical industry of Bangladesh.

[7] the Forbes list said Square Pharmaceutical Company of Bangladesh, involved in drug and chemical business, has sales volume worth $512 million.

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