Praise be to Allaah.
We ask Allah to guide you, and we appreciate your eagerness
to find out what is right.
With regard to using work equipment for personal ends, that
is not permissible except with permission from the boss or someone who has
authority to give such permission.
If the one who has authority over these things gives
permission to use them, and he has the authority to give them to employees
outside of working hours, then there is nothing wrong with your using them,
because they are the property of the company and it may dispose of them by
renting them out, giving them away, and so on.
See the answer to question number
Based on that:
With regard to the privileges that have been given to you by
the foreign company - such as a mobile phone and car - there is nothing
wrong with you using them, according to the agreement that the company has
with you. If the company allows you to use them for work purposes only, then
it is obligatory to limit it to that. If these privileges are a gift from
the company and they have allowed you to use them in all cases, it is
permissible for you to use them.
There are some differences between the public and private
sectors with regard to using things for personal ends that were given by an
institution or company.
In the case of private companies, if the boss gives
permission to use them for personal ends, there is nothing wrong with that,
as stated above.
But in the case of the public sector - or government - even
if the boss gives permission for that, it is not permissible to use them in
such ways that they are consumed or used up. The reason for that is that
this is public wealth and it is not owned by any particular person who could
give permission to anyone to use it for personal ends.
For a more detailed discussion of that, please see the fatwas
in questions nos. 47067,
And Allah knows best.