The polymer synthesis of film-grade (Polyethylene terephthalate ) PET resin and thin-film processing technology for ultra-thin PET film application developed by ITRI Material and Chemical Insititue assist to coaching CHC Indutrial Inc. to master the upstream key material and film production technology. It will promote the vertical integration of Taiwan’s BOPET industry and establish the key technologies for continuous PET film production. Such would also enhance the regional importance of Taiwan. In the future, the PET ultra-thin film can be applied to related industries such as film, capacitor film, high-end ribbon, photoelectric panel and display packaging for 5G equipment. At present, CHC Company applies PET ultra-thin film to the special printing paper of the sublimation printer, so that the color of the picture is finely saturated, waterproof, anti-fingerprint, anti-UV, permanent preservation and non-fading exclusive metallic gloss printing color, making the photo more brilliant. With the super-editing function of the developed APP, including cloud photo album access at any time, wifi connection multi-person sharing support business card, ID photo, personalized designed card, which lead to the most flexible use!