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Coslight Technology International Group Limited

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Coslight Technology International Group Limited is a Harbin-based listed company primarily producing communications and power equipment.

Last updated November 4, 2026

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Overview

Coslight Technology International Group Limited, full name Coslight Technology International Group Limited, is a listed company headquartered in Harbin, China, primarily producing communications and power equipment. It was founded in Harbin in 1994, and its main products include lead-acid batteries, nickel-metal hydride/nickel-cadmium batteries, and lithium-ion batteries. The current chairman of the board, Song Dianquan, is the founder of the group. It was formerly a Hong Kong Stock Exchange-listed company; trading was suspended on September 1, 2020, and its listing status was cancelled on April 4, 2022.

History

Coslight was founded in Harbin in 1994. Its main products include lead-acid batteries, nickel-metal hydride/nickel-cadmium batteries, and lithium-ion batteries. The current chairman of the board, Song Dianquan, is the founder of the group. It was formerly a Hong Kong Stock Exchange-listed company; trading was suspended on September 1, 2020, and its listing status was cancelled on April 4, 2022.

  • 2022

    The company's listing status on the Hong Kong Stock Exchange was cancelled on April 4, 2022.

  • 2020

    Trading of the company's shares on the Hong Kong Stock Exchange was suspended on September 1, 2020.

  • 2010

    The group was awarded the title of '2010 China Top 100 Electronic Information Enterprises'; the group's subsidiary Harbin Coslight Power Co., Ltd. independently developed lithium iron phosphate batteries over three years, reaching world-class levels; Coslight Telecom India Private Limited was established in India.

  • 2009

    The group won the titles of '2008 Advanced Enterprise in Overseas Investment Cooperation' and 'Top Ten Export Enterprises'; the group completed the acquisition of Hangzhou Yuexi Bus Manufacturing Co., Ltd.; the group was awarded the 'National Advanced Collective in Machinery Industry' and received the award at the Great Hall of the People, where Jia Qinglin, member of the Standing Committee of the Political Bureau of the CPC Central Committee, met with the delegates and took a group photo.

  • 2008

    Harbin Coslight Storage Battery Co., Ltd. received the 2006-2007 Harbin Tax Credit Grade A Taxpayer title; 'Harbin Coslight Storage Battery Co., Ltd.' was officially renamed 'Harbin Coslight Storage Battery Co., Ltd.' (joint-stock company) with approval from the National Development and Reform Commission.

  • 2007

    Daqing Coslight Technology Co., Ltd. was formally put into production after nearly a year of preparation, initially operating ten production lines with a daily production capacity of two tons of 'microfiber glass wool' and a designed production capacity of ten tons per day; the new Tianjin Coslight company producing electric bicycles was officially launched; Harbin Coslight Storage Battery Co., Ltd. acquired Shenyang Blue Torch Software Company.

  • 2006

    In March 2006, the Zhuhai storage battery project started construction.

  • 2005

    Harbin Coslight Storage Battery Co., Ltd. was awarded membership and certificate by the China Power Supply Society; the registered trademark 'COSLIGHT' of Harbin Coslight Group Co., Ltd. was recognized as a famous trademark of Heilongjiang Province by the Heilongjiang Provincial Administration for Industry and Commerce.

  • 2004

    Harbin Coslight Storage Battery Co., Ltd. and Harbin Coslight Power Co., Ltd. were awarded the honorary title of '2003 Advanced Foreign-Invested Enterprise'; Chairman Song Dianquan was awarded the title of '2003 Advanced Foreign-Invested Entrepreneur'; the group successively passed ISO14001 (environmental management system certification) and ISO18001 (occupational health and safety management system certification).

  • 2003

    Construction of the second phase of the polymer lithium-ion battery project began; construction of the new lithium-ion battery plant officially started; the intelligent stationary valve-regulated sealed lead-acid battery of Harbin Coslight Power Group Co., Ltd. won the third prize of the China Machinery Industry Science and Technology Progress Award.

Products and positioning

  • Valve-regulated sealed lead-acid batteries

    Stationary valve-regulated sealed lead-acid batteries produced by Harbin Coslight Storage Battery Co., Ltd., including GFM series, 6-GFM-X series, GFM(C) series, GFM-JC series, 6-GFMX-JC series, GFM-HJC series, 6-GFMX-HJC series and DZF electric bicycle dedicated batteries.

  • Communication lithium batteries

    Lithium batteries for communication applications, including base station battery modules, central computer room TC series battery cabinets, IDC computer room TCH series battery cabinets, and UPS computer room U series battery cabinets.

  • Electric vehicle lithium batteries

    Lithium batteries for electric vehicles, including electric cars, passenger cars, logistics vehicles and pure electric buses.

  • Electric bicycle batteries

    Batteries for electric bicycles and assist vehicles, including DZF series.

  • DC power supplies

    DC power supply products including electric power operation power supplies, communication power supplies and GYYZ emergency DC power supplies.

  • Nickel-metal hydride and lithium-ion batteries

    The group is a high-tech enterprise specializing in the research, development, design, production and sales of nickel-metal hydride batteries, lithium-ion batteries and power supply products.

  • Electric vehicles

    Electric vehicle manufacturing, including buses through Hangzhou Yuexi Bus Manufacturing Co., Ltd.

  • Wire and cable

    Wire and cable products produced by Harbin Coslight Wire and Cable Co., Ltd.

Controversies

  • 2020

    Suspended for Failure to Publish Results, Disciplined by HKEX, and Finally Delisted

    Guangyu International failed to publish its 2019 audited results and 2020 interim results, was suspended in September 2020, and was required to complete a forensic investigation. In March 2021, HKEX ruled that the company and ten directors including chairman Song Dianquan violated rules on disclosure and connected transactions; Song Dianquan was alleged to have deliberately prioritized commercial interests over compliance. Its listing status was cancelled in April 2022.

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