CBMM (Companhia Brasileira de Metalurgia e Mineração) is a Brazilian mining and metallurgy company and the world's largest producer of niobium products. Through corporate venture investments, CBMM backs advanced materials and battery technology startups such as Echion Technologies and 2DM, leveraging its niobium expertise to expand into new applications.
43% of their portfolio is in Hardware & Semiconductors. Their most common stage is series-b (43% of deals). Average disclosed round size is $50.0M (across 4 rounds with reported amounts).
Portfolio
4
Fund Size
—
Top Stage
Series B
Last 12 Mo
1
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
7 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Nyobolt | Series A | $100M | May 2026 |
| Nyobolt | Series B | — | Apr 2025 |
| EEchion | Series B | — | Jun 2024 |
 Echion Technologies | Series B | $35M | Jun 2024 |
| BBattery Streak | Pre-Seed | $5M | — |
| Echion Technologies | Series A | — | — |
| Nyobolt | Series C | $60M | — |
Top Co-Investors
BGF3 shared
IQ Capital3 shared
Latitude3 shared
Volta Energy Technologies2 shared
Cambridge Enterprise2 shared
Barclays2 shared
LocalGlobe2 shared
University of Cambridge1 shared
Origin Ventures1 shared
Last updated: 19 September 2026