The drink known as Black Powder with Chinese words written on it has caused an internet uproar.
A child in Bangkok purchase this tea alike drink and drank it. This drink contents an unknown substance that caused the children to become dizzy and fainting after drinking it. It has been reported on official channels that the drink is not approved by Thailand standards and officials are investigating the incident.
Please note that it is common for products from China/Taiwan, especially tea like bottle beverages to get imported to southeast Asia countries.
Chinatown sells all sorts of weird drinks you have never seen before. I’m not surprised if this drink is sold there.