The government intends to award a Firm-Fixed Price purchase order for annual maintenance and as-needed repairs of ThermoScientific ICP-MS and GC-MS instrument systems located at NAMRU-SA. This requirement is being solicited on a sole-source basis to ThermoFisher Scientific under FAR 12.102(a). Interested parties may submit a quote or capability statement to be considered by the government. The government reserves the right to not compete this action based on the responses received. No budget amount or performance timeline beyond the submission deadline is specified.