The first version of the Open Contracting Data Standard was developed primarily with reference to procurement type contracts. However, our goal has been that the standard should also be able to meaningfully capture information about other kinds of contracts, including permits, and contracts for concessions (e.g. mining). Unlike procurement contracts, where we were able to turn to a large amount of ready-structured data already being published, in the case of concession contracts data is harder to come by.
The use cases for concessions contracts also place a lot of emphasis on the contract text. These are contracts that may be in force for decades, and that have complex terms dealing with how resources and responsibilities will be split between governments sand consortia of firms. They include not only payments out by government, but also revenue payments to governments and other actors in various forms.
So - as part of preliminary work on exploring how O