The essay is about material flow analysis (MFA) and the essay must cover the following. Make clear in your essay, the word must be between 1000 words and references to literature (IEEE style reference) and no plagiarism.
What is the material flow analysis for the aluminum and steel industry? (Included their alloying element)
What is the methodology of material flow analysis? (There are many methods)
Some examples or studies (theoretical one) that are achieved in the publications (4-5 examples)