Owned by Thai Beverage (ThaiBev) and produced by the Sermsuk Public Company Limited, est is a prominent Thai soft drink brand that made a historic debut in 2012 following the end of a decades-long partnership between Sermsuk and PepsiCo. By utilizing an established, powerhouse distribution network, the brand achieved an unprecedented launch, famously moving one million cases in its first week and immediately challenging the dominance of global cola giants. While its flagship est Cola remains the core of the business, the brand has successfully pivoted toward a “lifestyle” identity with its “est Cola Awesome” campaign, focusing on the tastes of Gen Z through vibrant packaging and a diverse flavor portfolio that includes Cream Soda, Strawberry, and Orange. Through strategic partnerships with K-pop idols and major sports sponsorships, est has secured its place as a formidable local competitor in the Southeast Asian market, proving that a regional brand can successfully maintain high-level market share against international legacy brands.