Jones Tech (300684, SZSE) is a China company in the Liquid Cooling & Thermal segment of the AI compute value chain. As of October 04, 2026, its market cap is $4.8 billion ($4.8B), ranking #184 of 244 companies overall and #7 of 16 in the Liquid Cooling & Thermal segment (2.0% of the segment, 0.02% of the chain). Over the past year the stock gained 181.8% (52-week range 38.64 – 119.50 CNY).
| Company | Jones Tech（中石科技） |
|---|---|
| Ticker | 300684 · SZSE |
| Segment | Liquid Cooling & Thermal |
| Headquarters | China |
| Market cap | $4.8B（$4.8 billion） |
| Close | 108.10 CNY (October 04, 2026) |
| Today | +0.67% |
| 30 days | +11.44% |
| 1 year | +181.78% |
| 52-wk high / low | 119.50 / 38.64 CNY |
| Share of segment | 2.0% (Liquid Cooling & Thermal: 16 companies) |
| Share of chain | 0.02% (244 companies combined) |
| Segment leader | Vertiv Holdings ($97.1B) |
| Net income (TTM) | $52.9 million |
|---|---|
| P/E ratio (TTM) | 91.2 |
| P/B ratio | 15.63 |
| Basis | PE/PB 腾讯行情；净利润=总市值÷PE 推算（TTM） (source: tencent, 2026-10-05 08:05) |
| # | Company | Market | Market cap |
|---|---|---|---|
| 1 | Vertiv Holdings VRT | US | $97.1B |
| 2 | AVC 3017.TW | TW | $42.4B |
| 3 | Jentech Precision Industrial 3653.TW | TW | $31.4B |
| 4 | nVent Electric NVT | US | $27.4B |
| 5 | Envicool 002837 | SZ | $10.3B |
| 6 | Shenling Environment 301018 | SZ | $4.9B |
| 7 | Jones Tech 300684 | SZ | $4.8B |
| 8 | Kaori Heat Treatment 8996.TW | TW | $4.4B |
| 9 | Auras Technology 3324.TW | TW | $4.4B |
| 10 | FRD Science & Technology 300602 | SZ | $3.0B |