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Meng Sui

Meng Sui

Chief executive officer of Thezero, which makes biochar from organic waste

ExecutiveRoles at 2 startups
Updated Nov 10, 2026·Latest SEC filing Nov 5, 2026·Suggest an edit

About Meng Sui

Meng Sui is chief executive officer of Thezero, a Sunnyvale company. Thezero turns crop, food, forestry and municipal waste into biochar. The biochar replaces coal in steel, cement and power generation, and is also offered for permanent carbon storage. Sui is also co-founder and chief executive officer of EEnotech, a clean tech foundry that develops ideas from academic science into products. She is chief executive officer of 4C Air, Inc. as well.

Earlier, Sui worked as a research associate at Roche. She then worked as a patent agent and analyst for two law firms, Davis Polk and Wardwell LLP and Greenberg Traurig LLP. She is a U.S. registered patent agent. She holds a BS in chemistry from the University of Science and Technology in China and an MS in chemistry from Boston University.

Experience

This experience comes from official bios and from SEC filings. For roles taken from filings, the years are when the filings name Meng Sui in the role, so the role may have started earlier or lasted longer.

Thezero Inc. Current
Chief Executive Officer
2026 – Present · Sunnyvale, CA
Sunnyvale company converts crop, food, forestry and municipal waste into biochar that replaces coal or locks carbon away.
EEnotech, Inc Current
Co-founder and CEO
4C Air, Inc. Current
CEO
EnerVenue Holdings, Ltd.
Chief of Staff
2026 · Fremont, CA
Energy storage batteries for power grids and commercial and industrial sites.

Key Colleagues at Startups

The people Meng Sui works with at each company, as listed on that company's latest Form D.

Thezero Inc. · Form D, Nov 5, 2026
AM
Arun Majumdar
Co-Founder, Board Member
YC
Yi Cui
Co-Founder, Board Member
Divya Chalise
Divya Chalise
Co-Founder, CTO and director

Meng Sui in the News

Sources

  1. SECThezero Inc. Form D, filed Nov 5, 2026
  2. SECEnerVenue Holdings, Ltd. Form D, filed Jun 9, 2026
  3. companyTheZero home page