Police Book 2 Starbucks Korea Executives Over May 18 'Tank Day' Campaign
Updated
Updated · The Guardian · Jun 6
Police Book 2 Starbucks Korea Executives Over May 18 'Tank Day' Campaign
3 articles · Updated · The Guardian · Jun 6
Summary
South Korean police booked Shinsegae chairman Chung Yong-jin and former Starbucks Korea CEO Son Jeong-hyun after complaints that the 18 May promotion insulted victims of the 1980 Gwangju massacre and a 1987 torture death.
The campaign paired a new “Tank” tumbler line with the phrase “Tank Day” on 5/18 and used a “thwack on the desk” slogan, references that reopened wounds tied to dictatorship-era violence.
Starbucks Korea canceled the promotion within hours and fired Son the same day, but outrage spread through smashed tumblers, protests, deleted loyalty apps and demands for refunds from about 400 billion won in prepaid balances.
The backlash quickly hit business and politics: card spending at Starbucks stores fell 26% in a week, ministries cut ties, and President Lee Jae Myung condemned those responsible.
Shinsegae said its internal probe found no deliberate intent and blamed approval failures, including managers who did not review attachments, but victims’ groups rejected repeated apologies and analysts say the dispute taps deep divisions over South Korea’s democratic memory.
An AI-generated slogan led to criminal charges. Does this reveal the true peril of automating marketing in historically sensitive regions?
Could a disastrous coffee tumbler campaign force a corporate giant to sell its most profitable asset at a massive discount?
“Tank Day” Backlash: How Starbucks Korea’s Marketing Misstep Sparked Legal Action and a National Reckoning
Overview
On May 18, 2026, Starbucks Korea launched the 'Tank Day' campaign, developed by its e-commerce team mainly to boost sales and clear inventory. However, the campaign’s timing coincided with the anniversary of the May 18 Gwangju Democratization Movement, a highly sensitive historical event in South Korea. The use of artificial intelligence in creating the campaign, along with a slogan that bypassed full approval, led to public outrage and political backlash. This incident quickly escalated into a major crisis for Starbucks Korea, highlighting the risks of cultural insensitivity and the need for stronger oversight in corporate marketing decisions.