Acknowledgement of Risk and Release, Agreement Not to Sue Waiver

In consideration for being permitted to enter upon the property of the South Dakota Science and Technology Authority (referred to in this documents as the ?Authority?) located in and near Lead, South Dakota, including both the surface property and the underground workings and facilities owned by the Authority (referred to in this document as the ?Authority?s Surface Property? or the ?Authority?s Underground Property? and collectively, the ?Authority?s Property?), which permission was granted before proceeding.