A concession contract, in the realm of international law, is a binding agreement between a government, or other public entity, and a private entity. This agreement typically grants the private entity the right to use a specific piece of land or provide services that would usually be under the control of the government. In exchange for this right, the private entity must agree to certain terms and conditions, such as providing required services or paying royalties.

One of the most common forms of concession contracts internationally is the agreement between a government and a private entity to explore and extract natural resources. These natural resources may include oil, gas, minerals, or timber. The contract will spell out the terms for exploration, extraction, and transportation of the resources. It will also outline the obligations of the private entity to provide a percentage of the profits from the resources to the government.

Another type of concession contract that is frequently used under international law is the public-private partnership. These exist when the government partners with a private entity to provide services such as building a hospital or providing transportation infrastructure. The private entity assumes the risks and responsibilities of the project, and in return, they receive a share of the profits or guaranteed payments from the government.

Concession contracts must be carefully crafted to ensure that they are in compliance with international law, including environmental protection, human rights, and labor laws. In addition, the contract should aim to benefit both parties fairly. The government should receive sufficient compensation for the use of public resources or land, while the private entity must still make a reasonable profit.

Overall, concession contracts are an essential tool in international law for facilitating private investment in public resources and infrastructure. However, these contracts must be carefully structured to ensure that they are fair, equitable, and in compliance with international standards.