About Us

SiAECOSYS is a high technology group consist of several companies which headquarters located in Taizhou City, Zhejiang, China, focus on production,marketing and R&D for electric 2/3 wheeler Powertrain Solution and EV Development Projects. 

Since the founding year 2013, SiAECOSYS built as a sub-brand of QSMOTOR and its exclusive official export channel. Not only provide motor alone, we also  provide controller, display, throttle, charger as motor kit. In 2018, SiAECOSYS starts to offer complete customized electric powertrain solution.

After more than 10 years’ development, SiAECOSYS has entered into the new stage of EV development now. A variety of international famous high speed vehicle models are under developing or under mass production.

Till now, SiAECOSYS provides customized, professional and integrated services to more than 10,000 global partner and clients.

Electric Power Train Solution       Localized Production     Vehicle Conversion        EV Development          EV Assembly



Brand Concept

SIA with new energy industry  as Pioneer in civil technology, we are climbing technology tower for mankind.Either the base or the spire represents SIA highest masterpiece.

Company Culture

SIA Philosophy: Make it happen 



Headquarters (Taizhou City, China)

Hangzhou Branch-SEVS (Hangzhou City, China)

R&D center

Warehouse In QSMOTOR

EV Assembly Manufacture