In the LDS marketplace, you may publish only data products that are under your full ownership. You will just have to register a description of the data asset and its specification (e.g., product type, languages covered, distribution size and format etc.). The data itself will remain physically on your own servers, so that you will be always in control of your own data assets.
Before a data product can be published, a policy, i.e. the terms and conditions for its usage, must be applied. The LDS software provides a number of policy templates and examples, but new ones can be created, if required.