What is the ruling on money earned from working in a company that produces cooking oils, given that the nature of the work involves creating advertisements and images of unveiled women, organizing competitions for consumers, and product tasting by young, unveiled women? And is this money considered permissible (halal) or impermissible (haram), especially since it will enable the questioner to purchase a house or invest it in a project?

The basic principle for working in product promotion is permissibility if the products are lawful and the promotion is free from deception, fraud, or the use of forbidden methods according to Islamic law, such as using unveiled women.

Therefore, you are not permitted to continue in this work if it involves advertisements with unveiled women, as this constitutes cooperation in sin and aggression.

As for the money earned in the past, it is obligatory to dispose of the forbidden portion, and the remainder is lawful for you.

It is permissible to remain in this job in cases of extreme necessity, disposing of a portion of the salary equivalent to the forbidden work that cannot be avoided. This is based on the Almighty's saying: "And He has already explained to you what He has forbidden to you, except for that to which you are compelled," and His saying: "But whoever is compelled, neither desiring [it] nor transgressing, there is no sin upon him."