The National Institute of Standards and Technology (NIST) issued a combined sources sought notice and notice of intent to sole source for an Electrochemical Liquid TEM Holder System with Heating/Cooling. This acquisition supports the CHIPS R&D Metrology Grant Challenge Project 7.03, focusing on developing thermodynamic datasets and measurement platforms for critical material recovery from microelectronic waste. NIST seeks a system compatible with Thermo Fisher Scientific TEMs and X-ray scattering beamlines, offering integrated electrochemical and temperature control capabilities, specific design features, MEMS chip requirements, advanced imaging and software, and comprehensive delivery and support. The notice also requests a potentiostat, power supply, and on-site installation, calibration, training, and warranty. An optional line item for a leak check system is included. NIST's market research indicated Protochips, Inc. as the only capable source. The notice outlines detailed response requirements for interested vendors to demonstrate their ability to meet these specifications.