Osotspa was established by Mr. Pae, the first generation of the Osathanugrah family, under the name “Teck Heng Yoo” in 1891. The Company started as a pharmacy with products that focused on the health of Thai people, including well-known products Krisnaklan Tra Kilane, Tumjai, Utaithip and others. OSP was listed on the Stock Exchange of Thailand ("SET") on 17 October 2018 with a registered capital of THB 3,003,750,000 and a par value of THB 1 per share to prepare for transition into the global market and to achieve sustainable growth. OSP was added to FTSE All-World Index in June 2019, a stock market index that covers 3,100 companies in 47 countries, and to the MSCI Global Standard Index in November 2019.

Over the past century, OSP has continued to grow and evolve, creating innovative products in the Fast-Moving Consumer Goods ("FMCG") sector aimed at improving people’s quality of life. OSP’s core businesses comprise the production, marketing and distribution of consumer goods, focusing on beverages, personal care, healthcare and confectionery products, as well as providing product and packaging manufacturing ("OEM").