Monk Fruit Extract produced by Hunan Huacheng Biotech., Inc. is prepared with the core technology of self-developed and authorized invention patents. It has approved 183 national invention patents, and applied for 17 PCT patents, of which 2 PCT patents have been authorized in the United States, 1 PCT patent has been authorized in Japan, 1 PCT patent has been authorized in Indonesia, 1 PCT patent has been authorized in the EU, and more than 100 patents are under review.