Founded in 1997, Xiamen Threestone Packing Material Co., Ltd. is a leading Chinese manufacturer specializing in flexible packaging solutions, including food packaging bags, breastmilk storage bags, oven bags, and zipper bags. The company is highly certified, holding ISO9001, ISO13485, BRC, and BSCI approvals, and operates cleanroom facilities to ensure stringent quality control. Threestone supplies both domestic and international clients, including major retailers such as Walmart and Marks & Spencer. The company is committed to environmental sustainability through practices like using benzene-free ink and waste gas purification.