Recently, Wilkinson Manufacturing Co., Ltd., which began manufacturing food packaging containers and containers since 1953, initially developed and produced food-grade aluminum foil trays, has begun production from corn. The thermoformed packaging material made from polymerized lactic acid (PLA) has recently pushed this "green plastic" onto the markets of North American countries. This green plastic product using Cargill Dow, Nature Works, is now used in containers and electrical appliances for packaging fresh foods in European countries. Use this packaging container, which is registered trademark of Wilkinson's natural polymerized lactic acid plastic, and can discard it after use. The operator of the product introduced that the commodity plan had passed 15 months. As a substitute for petroleum resin, it had no adverse impact on the environment and was well evaluated by the market. Polymeric lactic acid green packaging materials used to package a variety of exquisite foods, breads and fresh foods are now on the market with various registered trademarks such as Display Pie, Just Fresh, Pari Pak and Versa Pak, formerly produced with OPS cover materials. Test sales for retail and food factories.