Anticipate the counterarguments. The argument s you make in your paper should reflect this main idea.
International companies having their factories in the developing countries provide thousands of people with work and stable income. How are they different? There is an urgent need of educating people about AIDS as there are many countries even in Europe where the information about this disease is inaccurate and unspecific.
Second, it stands as the point of reference for your entire paper. Teachers will have different preferences for the precise location of the thesis, but a good rule of thumb is in the introduction paragraph, within the last two or three sentences.
This weak thesis restates the question without providing any additional information.