The mandatory elements are all of these.
Contact/Personal information
Your name and address, telephone number, email address.
Objective
A summary of your goal for your job search.
Skill summary
You should state your soft skills: ( loyal, responsible, outgoing) and hard skills : computer knowledge, foreign languages, special capabilities).
Employment history
Your work and related experience.
Education
Your high school name, date of graduation, course highlights, certificates.
Awards and activities
Your academic, musical, athletic or other recognition.