This federal contract award, valued at $144,197.00, was issued by the National Institute of Environmental Health Sciences (NIEHS) to Abcam Inc., a foreign-owned, for-profit manufacturer of research-related biological products. The contract is for the design and assembly of a custom 68-plex panel of microRNA (miRNA) assays, as well as the analysis of 1,019 serum samples using the panel. The contract is a firm fixed-price purchase order with a completion date of March 3, 2020. This award was made without a set-aside designation, as Abcam was determined to be the sole source capable of providing the required specialized research materials and services to ensure consistency and continuity with a previous phase of the project. The contract supports NIEHS's research objectives in the medical and scientific domains.