Is there any special skills needed to do International business?

Smart & standard communication in international atmosphere of Business.

Yes indeed, but skills or attributes? Both are needed but not critical. Still first skill is knowing there language and know how bout Int l Business Norms, documentations and procedures, with technology to serve us, it is no rocket science. if one is involved in market entry trade and cross border collaborations, then an important attribute is cultural sensitivity and experience of cross cultural mediation. At present, it has also become helpful to transfer the traits to your counterpart without hesitation.

Communication and Patience