In this study, five kinds of RDF-5 samples were collected from pilot scale materials recovery facilities (MRFs) and made from combustibles in the source-separated MSW (RDF-5-a), plastics in the MSW (P-RDF-5-a), plastics and rubber scraps in the industrial manufacturing process (P-RDF-5-b and R-RDF-5), paper rejected sludge from a paper mill plant (PR-RDF-5), and wood waste (W-RDF-5), respectively.