China's Ministry of Commerce has issued standards over qualifications for leftover stock in a bid to eradicate fake products and regulate the market order.

The new standards stipulate that the function and safety of the leftover stock must meet government standards.

Hong Tao is a professor from the Beijing Technology and Business University.

"Leftover stock is a kind of time-lag product. Namely, only after those newly-produced products enter into the market can the leftover stock follow and be sold."

According to the new regulation, leftover stock should give a clear indication of the place it was produced as well as the name of the manufacturer and dealer. In addition, products failing to pass the government's quality inspection tests are not allowed to be released into the market. Leftover exports sold at home should also contain Chinese explanations.

The ministry of commerce says that at present the supply of leftover stock can not meet the market demand. Therefore, many dealers are selling fake products as leftover products.