# Direct-to-chip coolant (PG25) and inhibitors

Part ID: 5.09c · Layer 5 (Liquid cooling (IT-side: chip to CDU)) · child of 5.09

Glycol-water coolant (PG25) and its corrosion/biological inhibitors, the standard fluid used in conventional direct-to-chip cold-plate and manifold loops.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| BASF | manufacturer | inferred | public | BAS.DE |  |
| Castrol | manufacturer | inferred | subsidiary |  |  |
| ChemTreat | manufacturer | inferred | subsidiary |  |  |
| Dow | manufacturer | inferred | public | DOW |  |
| Ecolab (Nalco) | manufacturer | inferred | public | ECL |  |
| Kurita | manufacturer | inferred | public | 6370.T |  |
| LyondellBasell | manufacturer | inferred | public | LYB |  |
| Shell | manufacturer | inferred | public | SHEL |  |

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