Taiwan’s Poison Oil Scandal Sparks Mass Protests
Tens of thousands of Taiwanese citizens flooded Ketagalan Boulevard in Taipei on July 25, 2026, in one of the largest opposition-led demonstrations since President Lai Ching-te took office, demanding accountability over a widening food safety scandal involving carcinogen-contaminated cooking oil. Organizers claimed the crowd surpassed 200,000, while independent estimates placed attendance between 40,000 and 50,000.
Protesters chanted “Lai Ching-te apologize,” “Premier Cho Jung-tai step down,” and “DPP step down,” as opposition leaders from the Kuomintang (KMT) and Taiwan People’s Party (TPP) lambasted the Democratic Progressive Party (DPP) authorities for what they described as a cover-up and systemic regulatory failure.
The Poison Oil Scandal
The protests stem from the discovery that Zhonglian Oil & Fat, a major upstream supplier based in Taichung, had been producing soybean salad oil containing excessive levels of benzo[a]pyrene — a Group 1 carcinogen classified by the World Health Organization. According to Xinhua News, the contamination exceeded legal limits fourfold.
An estimated 8,000 tons of contaminated oil entered the market, with approximately 1,300 tons of raw contaminated materials flowing to roughly 300 enterprises, including major food brands such as Tai Shan, Fwusow, and CP Foods. Over 1,380 schools across Taiwan were affected, with more than 100,000 students and teachers impacted in Taipei alone.
The scandal broke in late June when downstream food company Nanchiao proactively tested and discovered the contamination. However, opposition critics charge that the DPP government delayed disclosure and attempted to suppress information.
The July 25 Rally
The demonstration, themed “I am Human, I Oppose Poison Taiwan,” began in the late afternoon under sweltering 30°C heat. The rally was jointly organized by the KMT and TPP, marking a significant show of opposition unity. Taiwan News reported that families, elderly citizens, and children were among the crowd, with many wearing white headbands reading “Protect Food Safety, Oppose Poison Taiwan.”
A dramatic moment came when hunger striker He Yuankai, a KMT councilor candidate who had fasted for more than 150 hours, was hospitalized. Three other hunger strikers bowed to the crowd before ending their protest.
Key opposition figures addressed the crowd. Legislative Yuan President Han Kuo-yu called the scandal “no mere accident but the greatest man-made disaster,” accusing the DPP of being a “Four Push Party” that shifts responsibility upward, downward, and to media and scholars. Taipei Mayor Chiang Wan-an noted that if over 1,380 schools had been affected, the government should “apologize and take political responsibility.”
KMT Chair Cheng Li-wen delivered the harshest criticism, leading chants of “Lai Ching-te step down” nearly 20 times. TPP Chair Huang Kuo-chang demanded three actions: full disclosure of the contaminated oil’s distribution, release of decision-making meeting records, and pursuit of administrative accountability.
The rally concluded after nightfall, with protesters’ chants echoing through Taipei’s streets.
Government Response
In response, Presidential Office spokesperson Kuo Ya-hui stated that the government respects the people’s right to express opinions lawfully, adding that officials should return to work after the protest to cooperate with the central government on food safety. Political Commissioner Chen Shih-chung defended the administration, asserting that “the one covering up was the company, not the government.”
Political Fallout and Reform Efforts
The food safety crisis has rapidly escalated into a major political challenge for the Lai Ching-te administration. Both the Executive Yuan and the KMT have proposed amendments to the Food Safety Act — the government version focusing on mandatory 24-hour reporting and preventive recalls, while the KMT version calls for fines as high as NT$10 billion and enhanced whistleblower protections.
Analysts view the protest as the largest opposition mobilization since Lai became president in 2024, potentially reshaping Taiwan’s political landscape ahead of future elections. The scandal has also drawn attention from Chinese state media, which frames the issue as evidence of DPP misgovernance.
What’s Next
As investigations continue, the Taichung District Prosecutors Office has detained the Zhonglian factory manager, and the company’s three major shareholders have publicly apologized. However, with hundreds of thousands of potentially exposed children and families, the demand for accountability shows no signs of abating. The KMT has already announced plans for further rallies, suggesting that the poison oil scandal will remain a defining issue in Taiwan’s political discourse for months to come.