case, dealing with a big food commodity or logistic services or any file like the one we see in the unhrd. reporter: 28 aid agencies and the united nations have depots here, both free of cost and duty-free. everything comes together in the offices of the un world food programme. the man behind it all is the sheik of dubai. he's created a mega-hub of the global humanitarian aid programme at a cost of 80 million euros. the control centre of international humanitarian city, far from the cartons and depots. anyone wanting to do business with the humanitarian aid scene has to come here. the top managers of large companies come and go freely - like the head of ups india. his company has just donated another cargo flight to kathmandu. the partnership is close. the returns, he stresses, are indirect. rami: indirect return - obviously, as you build capabilities, as you deal with crisis such as nepal, which has been one of the more difficult crisis situations to deal with, you can lever some of these skills on the commercial side to provide aid and provide support. reporter: but the returns aren't