Citrus Pectin Engineering and technology research and experimental development; Technical service, technology development, technology consultation, technology exchange, technology transfer, technology dissemination; Medical research and experimental development; Bio-based material technology research and development; New material technology research and development; Food sales (pre-packaged food only); Food Internet sales (pre-packaged food only); Health food (pre-packaged) sales; Food additive sales; Research and development of harmless utilization technology of agricultural and forestry wastes; Fermentation process optimization technology research and development; Biotechnology product technology research and development; Food additive production; Health food production; Food production; Technology import and export; Import and export of goods;