How A Starbucks Tumbler Triggered National Outrage In South Korea And CEO's Resignation
How A Starbucks Tumbler Triggered Outrage In South Korea And CEO's Resignation Published By, Last Updated: June 06, 2026, 17:48 IST Starbucks Korea Tank Day
How A Starbucks Tumbler Triggered Outrage In South Korea And CEO's Resignation Published By, Last Updated: June 06, 2026, 17:48 IST Starbucks Korea Tank Day tumbler campaign on May 18 sparks outrage over Gwangju Uprising ties, leading to CEO firing, boycotts, sales drop, and political backlash. Activists remove the Starbucks logo from a poster during a rally calling for a boycott of the Starbucks coffee chain in Seoul. (Image: AP) What began as a routine marketing campaign for a new range of Starbucks tumblers quickly spiralled into one of the biggest corporate controversies in South Korea, leading to public protests, customer boycotts, the dismissal of the company’s CEO and even intervention from political leaders. The controversy erupted on May 18 when Starbucks Korea launched a promotion called “Tank Day" to its new “Tank Series" tumblers. The campaign was intended to highlight the products’ large capacity and encourage customers to purchase bigger-sized beverages. However, the timing and messaging of the campaign struck a nerve across South Korea. Why Did the Campaign Spark Outrage? May 18 holds deep historical significance in South Korea. Known simply as “5·18", the date marks the anniversary of the 1980 Gwangju Uprising, a pro-democracy movement that was violently suppressed by the military regime of Chun Doo-hwan. Over a period of 10 days, troops cracked down on demonstrators in the southwestern city of Gwangju. While official figures remain disputed, victims’ groups estimate that hundreds of people were killed.
Many South Koreans were outraged that Starbucks launched a product called “Tank" and declared May 18 as “Tank Day", viewing it as an insensitive reference to one of the country’s most traumatic historical events. The backlash intensified because of another campaign slogan used by Starbucks: “Thwack on the desk." Critics pointed out that the phrase echoed the explanation once given by authorities following the 1987 torture death of student activist Park Jong-chul. Police initially claimed he had died after an officer struck a desk during questioning, a statement that later became synonymous with government deception and abuse during the dictatorship era. Campaign Pulled, CEO Fired Starbucks Korea withdrew the promotion within hours of its launch, but public anger continued to spread. Videos circulated online showing customers smashing Starbucks tumblers and mugs in protest. Demonstrations were held outside stores, while social media users deleted loyalty accounts and demanded refunds for prepaid balances. The fallout was swift. Starbucks Korea CEO Son Jeong-hyun was dismissed the same day the campaign was withdrawn. Before leaving the company, he issued a public apology and pledged improvements in historical awareness and ethical standards within the organisation. Billionaire Chairman Forced to Apologise The controversy soon reached the highest levels of Shinsegae Group, the South Korean retail giant that operates Starbucks Korea under licence. Shinsegae chairman Chung Yong-jin issued an initial written apology, but it failed to calm public anger. Days later, he appeared at a nationally televised press conference where he bowed three times before the cameras and apologised again.
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