The global multi-walled carbon nanotubes market size was worth around USD 5.45 billion in 2024 and is predicted to grow to around USD 22.70 billion by 2035 with a compound annual growth rate (CAGR) of 13.85% from 2025 to 2035. The growing need for lightweight, strong, and conductive nanomaterials worldwide, the multi-walled carbon nanotubes (MWCNT) market offers opportunities in the electronics, energy storage, aerospace, and medicinal industries.