Ever since Cangjia received an order of guarana seed extract from a famous customer ten years ago, Cangjia has been continuously investing its efforts to obtain high quality and stable supply of guarana seed raw materials, continuously developing and optimizing the production process to improve the potent of the guarana seed extracts, and adopting unique technology to remove various potentially harmful substances such as pesticide residues and heavy metal residues. Currently, Cangjia produces more than 20 tons of guarana seed extract series annually.