Ames Goldsmith Ceimig: PEMEL/FC Electrocatalysts Ames Goldsmith Ceimig (subsidiary of Ames Goldsmith Corporation) is a manufacturer of platinum group metals (PGMs) based electrocatalysts, which are used in proton exchange membrane (PEM) fuel cells and electrolyzers. This company profile focuses on Ceimig's product offering for the PEM fuel cells and electrolyzers. Ames Goldsmith Ceimig: PEMEL/FC Electrocatalysts