She works for a company that is partly owned by two riba-based banks. Is her work haraam?
Question

                I am single and work for a company that is owned by five different entities, among which are two riba-based banks they are: the Bank of Egypt, which hold 22.5% of the capital and the National Investment Bank, which holds 22.5% of the capital, in addition to a foreign (Chinese) company, which holds 10% of the capital, an Egyptian construction company, which holds 22.5% of the capital; and the Suez Canal Company, which holds 22.5% of the capital.
 
This company which was formed by the above-mentioned entities owns a piece of land and its role is to put in services such as drainage, electricity and water, then they divide it and sell it to investors, a transaction which is either immediate or in instalments, with annual fixed interest of 7%. Please note that these sales sometimes stop. My job in this company is in the secretarial department (administrative work). I used to spend and save from my salary during the period I worked in the company, which was five years, without knowing that this money might be dubious. These savings are in an Islamic bank. Is my work in this company whose earning are mixed halaal or haraam? What is the ruling on what I saved -- which is a large amount? How should I dispose of it?

Please advise me and save me from my confusion and torment.
Praise be to Allah.
      What seems to be the case is that it is 
      permissible to work in this company so long as the work that you are doing 
      is halaal. With regard to working in companies whose work is permissible, 
      the ruling is different with regard to working in banks and other riba-based 
      institutions. In the bank, the employee is sinning whether he is working 
      as a clerk or witness or even as a guard, because the work is haraam in 
      the first place, unlike if the bank has a share in part of the capital of 
      a company whose work is permissible. In this case it depends on the nature 
      of the company's work; for example, it is permissible to work with Jews, 
      Christians and those who deal with riba, although it is makrooh. 

    Ibn Qudaamah al-Maqdisi (may Allah have 
    mercy on him) said: 

    Ahmad said: A Muslim may enter into a 
    partnership with a Jew or a Christian, but he should not let the Jew or the 
    Christian be in charge of the financial affairs to the exclusion of the 
    Muslim, because they may engage in riba.  This is the view of al-Hasan and 
    al-Thawri. 

    Al-Shaafa’i regarded such partnerships as 
    makrooh in all cases. End quote. 

    Al-Mughni, 
    5/109 

    Ibn al-Qayyim (may Allah have mercy on him) 
    said: 

    Iyaas ibn Mu‘awiyah said: If a Muslim goes 
    into business with a Jew or a Christian, and the money is with the Muslim 
    and he is the one who will do the buying and selling, there is nothing wrong 
    with it, but he should not give it to the Jew or Christian to deal with it, 
    because they deal with riba. End quote. 

    Ahkaam Ahl al-Dhimmah, 
    1/93 

    You will find more details on this issue in 
    the answer to question number 48005, at the beginning of which we said: 

    If a person earns money in haraam ways such 
    as riba, bribes, stealing and cheating, etc., and his wealth is a 
    combination of halaal and haraam, then it is valid to do business with him, 
    buying and selling and entering into partnerships, but it is makrooh. If it 
    is known that the product in which the trade is to be done is haraam in and 
    of itself, then it is not permissible to enter into a partnership with him 
    or work with him in that business.. 

    Based on that, the money that you are taking 
    from this company (the salary) is halaal, in sha Allah, and there is nothing 
    wrong with what you have spent or saved.  

    And Allah knows best.