Hong Kong beverage maker Vitasoy slumps by most in 15 months as leaked memo fans controversy and costs investors US$475 million
- The stock plunged in Monday trading, erasing US$475 million of market value, in its worst single-day loss since March 30 last year
- Sell-off indicates nationalism playing out in stock market, similar to issues surrounding Xinjiang cotton and solar-panel material producers

The stock plunged 12 per cent to HK$25.95 in Monday trading and completed its worst single-day loss since March 30 last year. The stock is among those eligible for trading by onshore investors through the Stock Connect scheme, which suggests nationalism may be behind the sell-off that erased US$475 million from its market value.
In the leaked Vitasoy memo that went viral on the internet last week, the company expressed its condolences to the family of a 50-year-old purchasing manager identified only as Leung, who stabbed a police officer in Causeway Bay on July 1, before killing himself.

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The day was a double celebration marking the 24th anniversary of the city’s handover and the Chinese Communist Party’s centenary. Hong Kong’s police has described the act as lone-wolf terrorism.