Principal activities and organization

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Principal activities and organization

The consolidated financial statements include the financial statements of Highpower International, Inc. ("Highpower") and its 100%-owned subsidiary Hong Kong Highpower Technology Company Limited (“HKHTC”), HKHTC’s wholly-owned subsidiary Shenzhen Highpower Technology Company Limited (“SZ Highpower”), SZ Highpower’s and HKHTC’s jointly owned subsidiaries, Springpower Technology (Shenzhen) Company Limited (“SZ Springpower”) and Icon Energy System Company Limited (“ICON”) and SZ Highpower’s and SZ Springpower’s jointly owned subsidiary Huizhou Highpower Technology Company Limited (“HZ HTC”). Highpower and its direct and indirect wholly owned subsidiaries are collectively referred to as the "Company".

Highpower was incorporated in the State of Delaware on January 3, 2006. HKHTC was incorporated in Hong Kong on July 4, 2003. All other subsidiaries are incorporated in the People’s Republic of China ("PRC").

On December 21, 2017, after the completion of the capital increase to Ganzhou Highpower Technology Company Limited (“GZ Highpower”) by other shareholders, the Company lost the controlling power over GZ Highpower and deconsolidated GZ Highpower. SZ Highpower holds 31.294% of the equity interest of GZ Highpower.

The Company’s principal activities are described as follows:

Name of company	Place and date incorporation	Principal activities
HKHTC	Hong Kong July 4, 2003	Investment holding and marketing of batteries

SZ Highpower	PRC October 8, 2002	Manufacturing, marketing and research of Ni-MH batteries

SZ Springpower	PRC June 4, 2008	Manufacturing, marketing and research of lithium batteries

ICON	PRC February 23, 2011	Design and production of advanced battery packs and systems

HZ HTC	PRC March 8, 2012	Manufacturing, marketing and research of lithium batteries