( Update: 19/10/2013 )

Charcoal for sale in Vietnam
Charcoal has always been used as fuel material. However now, when gas, electricity and oil are commonly used, its production has declined. Unique characteristics of charcoal allow using it in various fields. Just recently it hasn’t been used commonly, but today it attacks more and more attention. Charcoal suits perfectly for domestic use – chargrills, fireplaces, barbeques, as it is smokeless and environmentally friendly. It can also be used in manufacturing industry: nonferrous machine industry (eg. to obtain aluminum, boron, etc.); in the production of pure silicium which is used to get semi-conductors; in chemical industry; metallurgy industry as deoxidant because there is a big amount of carbon in charcoal, in the production of glass, crystal, paint, electrode, plastic and in many other fields.
Charcoal for industrial use can be made of lumpy wood waste products of forest procurement, fuelwood and briquette of plant origin, i.e. the off-grade wood and other plant waste can be used as raw materials for charcoal production. In this case the cost of raw material will be minimal and therefore the prime cost of the product will be relatively law comparing to the market price. With high profitability and almost free of charge raw material, you may think that there is a snug in it somewhere. And there are indeed several potential problems there:
There are many other disadvantages of domestic production but let us focus on the solution of the problem
Source: by Kevin Nguyen - http://charcoalkiln.wordpress.com