Is it Haram to sell that which is Halal to organisations that mainly deal in Haram matters.
For example: A bar owner approaches you and wants to buy water from you in bulk quantities to sell in his bar.
Does selling the water to the bar owner gets considered as assisting in that which is Evil?
O you who have believed, do not violate the rites of Allah or [the sanctity of] the sacred month or [neglect the marking of] the sacrificial animals and garlanding [them] or [violate the safety of] those coming to the Sacred House seeking bounty from their Lord and [His] approval. But when you come out of ihram, then [you may] hunt. And do not let the hatred of a people for having obstructed you from al-Masjid al-Haram lead you to transgress. And cooperate in righteousness and piety, but do not cooperate in sin and aggression. And fear Allah ; indeed, Allah is severe in penalty. (5:2)