article_snippet: In China they sell for just 10p
article_snippet: a pack and are a common sight in primary school tuck shops.
article_snippet: The most popular brands sell more than 400,000 packets a month, solely online.
article_snippet: Roaring trade: Roaring trade are popular on online sites such as Amazon.
highlights_snippet: Young Chinese are big fans, and Young Chinese cost as little as 10p a packet .
  
highlights_snippet: Many consumers overseas also order Many consumers overseas from sites such as Amazon .
  