The relative abundances and mixing states of individual fine particles collected by a two-stage impactor on Mt. Hotaka at elevation 2165 m in central Japan in December 2009 are investigated with an energy-dispersive X-ray (EDX) analyzer and also ana-lyzed by their volatility after strong irradiation of electron beams. The latter analysis is useful for individual fine particles as small as 0.02 µm, since detection of volatile parti-cles smaller than 0.1 µm is difficult with EDX analysis. A trajectory analysis reveals that air parcels are transported from the Asian continent through the marine boundary layer, which results in abundant sulfur-rich particles as well as sea-salt particles even on the high elevation site. Sulfur-rich particles constitute a large fraction of particles in all of the samples, although some particles contain abundant potassium. The latter particles probably originated from biomass burning and were condensed with sulfates during their transport. Mineral particles and soot-containing particles constitute less than 10% of all particles in each diameter bin. The snowfall samples contain a very high fraction (> 90%) of fine sulfur-rich particles, and no coarse particles are present; precipitation may scavenge these large particles from the atmosphere. Volatility analysis reveals that the most abundant particles are volatile particles, which decrease in fraction with increasing size and account for 70–90% of the total particles in all bins. Internally mixed soot particles are abundant in the larger diameter bin of 0.2–0.5 µm. These particles are likely formed by heterogeneous processes on soot particles during their transport.