you may need to provide your name, phone number, e-mail address, date of birth, gender, product identification (i.e., product serial number, Product model), and other personal information according to the types of activities you participate. If you are a prize contest winner or want to receive gifts, you may be required to provide your mailing address (i.e., zip code) or information necessary for tax declaration (i.e., photocopy of your household registration address or ID card/passport number).