Vietnam penang city is a city in southeast Asia is rich in coconut, coconut resources are rich, factory use of local rich resources of coconut shell, self-built charcoal stove fire carbonized coconut shell material, ensure the plant raw material carbon content more than 85%, less than 2.5% ash, so the factory product quality is stable, transportation is convenient, factory distance rimmy hu port 90 kilometers, is advantageous for the factory ship the goods to the customer.