- Contract for the international sale of goods.
- International intermediation contracts (agency, distribution, franchise).
- International civil liability, breach of international contracts and dispute resolution systems (negotiation, jurisdiction and arbitration).
- Legal regime of international collections / payments.
- International means of simple payment, documentary remittances, documentary payment orders (DAC), electronic remittances, ordinary letter of credits, special letter of credits (stand-by, acceptance, negotiable, transferable, etc.).