Segmentation by types classifies Nano‑grade Carbonyl Nickel Powder into spherical, flake‑shaped, and core‑shell configurations, each further divided into high‑purity, alloyed, and surface‑modified subtypes. Spherical particles, prized for uniform flow and packing density, dominate the high‑purity subtype and contribute the largest share of the market, driven by stringent performance standards in electronics. Flake‑shaped powders, offering anisotropic conductivity, are prevalent in catalytic and energy‑storage applications; their alloyed variants—often combined with copper or cobalt—enhance catalytic activity and electrochemical stability, supporting a mid‑range market contribution. Core‑shell structures, where a carbonyl nickel core is encapsulated by a protective carbon or oxide layer, are primarily surface‑modified to improve oxidation resistance and compatibility with polymer matrices, capturing niche but growing demand in advanced composite systems. The distribution of these types reflects the balance between cost, performance, and end‑use specifications, directly influencing the aggregate market valuation.