This is a true case. If you don't believe it, try the following test:
 
Soak a pair of disposable chopsticks (usually given to you when you buy food from a Chinese take-away) for between 3 to 5 minutes in hot boiling water.  Within minutes and right in front of your eyes, you will notice that  some white colouring matter seems to be dissolved in the hot water from the chopsticks. What is released from the chopsticks is actually a chemical -  a bleaching agent. 
 
In a campaign promoting health care in Singapore recently, Professor Jackson Mathis reminds people not to use disposable chopsticks,almost all of them are made in or imported from China. He explained that during all raw materials are already covered with germs that make the wood materials look like they are coated in multiple colours or are covered with poisonous fungus. 
 
The first process itself is already frightening as the manufacturer starts the process by soaking the wooden raw materials in a very big container th filled with a very toxic and highly poisonous chemical. This chemical is intentionally added to preserve the materials. After a few days of soaking, they are then washed with an even worse cleaning agent. In this case, it is a bleaching agent (which chemical ph level believed to be more than a thousand times beyond the general permissible/acceptable international standards). These chemicals can cause great harm to our health (if we continue to consume such chemicals into our bodies on a daily basis) as these chemicals are carcinogenic and likely to cause cancer.
 
Since his last visit to a disposable chopsticks manufacturing plant in China 5 years ago, Professor Jackson Mathis has immediately stop using disposable chopsticks and he said:
 
"If you have been using disposable chopsticks in the past, and continue using them again, please pause and think for a moment. Why is cancer spreading like wild fire these days throughout the world and affecting all sorts of people? Think also how many pairs of disposable chopsticks a factory in China is producing by the minute and what harm can be done.”