Zhongshan Broad-Ocean Motor Co., Ltd.(002249.SZ)
HQ CN30% share
Large Chinese maker of HVAC EC/PMSM fan and blower motors; supplies global HVAC OEMs and owns stakes in fuel-cell/EV motor ventures.
manufactured · input
ECM Fan Motors (HVAC)
Electronically commutated permanent magnet brushless DC fan motors for condenser and indoor blower applications. Required for high-SEER2 systems; 30–50% more efficient than legacy PSC motors. ebm-papst (Germany), Nidec (Japan), and Chinese OEMs (Wolong Electric, Broad-Ocean Motor) supply global HVAC OEMs.
12
Source countries
5
Companies
1
Goods affected
0
Claims on record
What depends on it
Goods that need this input
1 essential American goods rely on ecm fan motors (hvac) somewhere upstream in their supply chain.
Where it comes from
Source countries
Share of global supply, by country.
| Country | Share of supply |
|---|---|
| CNChina | 45% |
| MXMexico | 29% |
| DEGermany | 25% |
| JPJapan | 18% |
| USUnited States | 8% |
| CHSwitzerland | 8% |
| VNVietnam | 5% |
| KRSouth Korea | 4% |
| CACanada | 2% |
| TWTaiwan | 2% |
| THThailand | 2% |
| ATAustria | 2% |
Who makes it
Supplier companies
5 companies produce ecm fan motors (hvac).
Nidec Corporation
HQ JP
World's largest manufacturer of small precision electric motors (TSE: 6594, HQ Kyoto); founded 1973 by Shigenobu Nagamori. Dominates hard disk drive (HDD) spindle motors (nearly 100% global market share for decades) and is aggressively expanding into BLDC motors for home appliances and EV traction motors. Annual production exceeds 1 billion motor units across all categories. Key BLDC divisions: Nidec Motor Corporation (US, household appliances), Nidec Global Appliance (Brazil, formerly Embraco). The same Nidec that makes the spindle motor in every hard drive also makes the BLDC motor in washing machines and is building the next generation of EV traction motors.
Regal Rexnord (Marathon Electric)
HQ US
Regal Rexnord Corporation (Beloit, WI; NYSE: RRX; ~$6.5B revenue) produces industrial alternators and generators under the Marathon Electric brand — one of the oldest and most recognized AC generator brands in North America. Marathon Electric was founded in 1913 in Wausau, Wisconsin; it became part of Regal-Beloit, which merged with Rexnord in 2021 to form Regal Rexnord. Marathon alternators range from 5 kW to 3,000 kW; widely used in U.S. standby and prime power applications. Marathon maintains manufacturing in Wausau, WI and sourcing from lower-cost locations. Estimated 8-12% North American market share in industrial genset alternators, though global share is smaller (~5-8%) given Stamford and Leroy-Somer dominance in international markets.
Wolong Electric Group
HQ CN
Chinese electric motor conglomerate (SHEX: 600580, HQ Shaoxing, Zhejiang); produces BLDC motors, AC motors, and generators for home appliances, industrial applications, and emerging EV sectors. Major OEM supplier to Chinese appliance manufacturers. Acquired ATB (Austria) in 2011 to access European markets. Wolong is one of China's largest diversified motor groups and a significant supplier to global appliance OEMs.
ebm-papst
HQ DE
German EC (electronically commutated) fan and motor specialist; world technology leader in energy-efficient EC fans for HVAC, commercial refrigeration, and industrial ventilation. Privately owned (Zeitgeist AG). ~2B EUR revenue; supplies Carrier, Trane, Lennox, Danfoss globally.