Shanghai Buyi Biotechnology Co., Ltd.

Shanghai Buyi Biotechnology is a food-additive company that combines R&D, sales and import and export work. Its stated focus is cellulose-based ingredients and their application in food, which is the context for the methylcellulose listed here. The wider catalogue also covers animal protein products, natural spices, compound food additives and fats and oils, and the company says it continues to bring in further natural food raw materials for the food-manufacturing trade.

The site places the company in the Pudong New Area of Shanghai and gives a contact address in the Putuo district of the city, at 255 Hongliu Road. The company describes itself as running its own research team, and states that its products are certified to European Union standards. No founding year, plant location or production capacity is published on the site, and the pages give no certification numbers, so the scale of its own manufacturing cannot be established from the company's own material.