# Agents

Part ID: 6.09c · Layer 6 (Facility cooling & HVAC) · child of 6.09

The extinguishing agents themselves — clean fluorinated agents or inert gases — used in gaseous suppression systems, an area in flux following 3M's discontinuation of Novec 1230 at the end of 2025.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| Chemours | manufacturer | inferred | public | CC |  |
| inert gas from Air Liquide | manufacturer | inferred | subsidiary |  | and Linde (LIN) |
| 3M Novec 1230 | manufacturer | inferred | unknown |  | discontinued end-2025 |

Confidence tags: disclosed = company/filing statement; reported = trade press or partner list; inferred = taxonomy lead.