Wholesalers Representatives Please click on the link below to request a user account with Sioux Chief Manufacturing. All accounts will be approved prior to the creation of a user ID. If you are not a current customer of Sioux Chief please call the customer service department to fill out a credit application before requesting an user account. Please click on the link below to request a user ID as a registered Sioux Chief outside sales representative. All requests will be approved prior to the creation of an ID.