Pre-Seed · Agritech

Mafix raises $5.4m pre-seed for commercial-scale fertilizer tests

Carbon-negative silicon fertilizer made by processing silicate rock in existing cement kilns.

The financing supports commercial-scale testing, including a planned 1,000-ton production milestone. Mafix uses existing cement kilns to process silicate rock into silicon fertilizer, linking its production tests to a route that can use established industrial equipment.

Funding history

Pre-Seed · This round$5.4M

Sources

  1. Mafix Raises $5.4M to Test Silicon Fertilizer at Scale | DevCurationdevcuration.com · Aug 25, 2026