The Hague Convention is a treaty that works to prevent the exploitation of children internationally. It also provides a path for adoption of a child from another country. If you are considering using the Convention to adopt a child, here are some of the steps you must take. Select an Adoption Service Provider To adopt a child using the Convention, you must work with an adoption service provider. The provider is your advocate throughout the adoption process and helps you complete all of the tasks necessary to adopt a child.