Trung Nguyên its "Weasel" sub-brand. Due to the complicated production process, only 40–50 kg of "Weasel" coffee are produced annually. It is much more expensive than any of the company's other products: a 1 kg bag of "Weasel" coffee costs $3,000, six times higher than Indonesian kopi luwak. Dang has claimed, however, that Trung Nguyên's Vietnamese version is of higher quality, since production depends on wild or free range civets who choose the best coffee beans themselves, instead of being caged and force-fed. Currently, Trung Nguyen owns the system of four factories: Along with producing and processing coffee beans, Trung Nguyên operates
Large Indian civet as valid subspecies by 2005: The validity of "Viverra tainguensis" described in 1997 by Sokolov, Rozhnov and Pham Chong from Tây Nguyên in Gia Lai Province in Vietnam has been seriously questioned, and it is now generally considered a synonym of "V. zibetha". These names are questionable, as the species has not been recorded in the areas where languages are spoken: Large Indian civet The large Indian civet ("Viverra zibetha") is a civet native to South and Southeast Asia. It is listed as Least Concern on the IUCN Red List. The global population is considered decreasing mainly because of trapping-driven