Starting as a small pharmacy in Sampeng, the company’s rapid growth was a source of pride for the Osathanugrah family and 
the company’s employees.
His Majesty King Bhumibol Adulyadej, Rama IX
conferred the Royal Garuda emblem to the company, now called Osotspa “Teck Heng Yoo” Company Limited, on 13 October 1959.