What is the ruling on disposing of profits resulting from the purchase of shares in the company "SIDPEC" while there is doubt about its compliance with Sharia, and is it permissible to take these profits, or must they be given away in charity, entirely or partially?

We have no knowledge of the aforementioned company. The questioner should refer to the specialized scholars in their country to ascertain the ruling on purchasing its shares. If a person buys shares in a mixed company, they are obligated to purify themselves from any unlawful money that accrues to them. This is called tathir (purification), and it involves disposing of the proportion of unlawful and doubtful earnings in every profit they acquire, whether it is operational profit or profit resulting from buying, selling, and speculation.