How a Zoo Bribery Scheme Cost the Public Millions — The Ultron Scam Explained (2026)

Corruption in the Singapore Zoo: A Web of Bribes and Betrayal

It's shocking, isn't it? A construction company director was just sentenced to eight months in jail for bribing a facilities management director at the Singapore Zoo. This wasn't a small-time operation; the bribes totaled over $190,000! But this is just the tip of the iceberg.

At the heart of the scandal is a former facilities management director, Barry Chong Peng Wee, who orchestrated a complex scheme of corruption. From 2005 to 2016, he took over $2.4 million in bribes from multiple individuals. He was the central figure, the one who made it all happen.

The zoo, then a subsidiary of Wildlife Reserves Singapore (WRS), awarded contracts worth over $3.7 million and paid almost $2.7 million to Ultron Construction. Due to inflated bids, WRS, now known as the Mandai Wildlife Group, suffered losses of at least $192,000. The construction director, Wong Eng Kuen, pleaded guilty to three graft charges involving at least $140,000. The court considered three other charges during sentencing.

But here's where it gets controversial: Chong wasn't alone. Another player, Toh Yong Soon, Wong's brother-in-law, was sentenced to three years and three months in jail in May 2024. Toh worked with his father and uncle, who had previously set up Shin Yong Construction (SYC). They had entered into a corrupt arrangement with Chong, ensuring WRS jobs were awarded to SYC in exchange for cash.

Toh joined SYC in 2009 and later took over the operations. He continued the corrupt arrangement, inflating invoices to provide Chong with a commission. He also recruited other contractors to join the scheme. In the current case, Toh engaged Ultron through Wong. Wong, despite having no prior construction experience, set up Ultron at Toh's suggestion, understanding that he would pass money to Chong for awarding jobs.

And this is the part most people miss: Chong would inform Toh about upcoming WRS jobs and the specific prices to bid, marked up by at least 20% for commissions. Toh would then tell Wong the recommended prices, who would submit the inflated bids. Chong would also provide Toh with a list of awarded jobs and the required commission amounts. Toh would collect money from contractors, including Wong, and give it to Chong.

The prosecutors highlighted that the corrupt practices circumvented WRS's procurement processes, designed to ensure fair competition and competitive pricing. The investigation by the Corrupt Practices Investigation Bureau, which began in October 2016, brought an end to this unlawful arrangement.

What are your thoughts on this case? Do you think the sentences were appropriate? Share your opinions in the comments below!

How a Zoo Bribery Scheme Cost the Public Millions — The Ultron Scam Explained (2026)

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