• Company Profile

    Zhejiang Dun 'an Artificial Environment Co., Ltd was listed on the shenzhen stock exchange in 2004 (hereinafter referred to as DunAn Environment, stock code 002011). The company’s main business covers components manufacturing (refrigerating and control components in household, commercial air conditioning, heat pump, refrigeration, industry and other areas), equipment manufacturing(commercial and special A/C such as nuclear, cleaning and rail transit areas, industrial fan and system equipment, cold chain system),intelligent control component(sensor, MEMS and intelligent controller etc.), key component for thermal management system of new energy vehicle, and energy saving area etc.

    The goal of the company is to become the “Leader of healthy and comfortable environment”. Its mission is to “promote energy efficiency and optimize environment”. With "customer-centric, technology-leading, cost-leading" as the core competitiveness, it t has been continually enhancing sustainable development ability.

    In recent years, DunAn Environment has been actively transforming itself to high-end equipment manufacturing and intelligent manufacturing. It has successfully entered nuclear power HVAC area and is currently one of the key domestic suppliers with the most complete HVAC products and highest technical content.

    The company is a leading enterprise in the global refrigeration accessories industry. It is the first company in China to produce nuclear grade water chiller for nuclear power plants and has independent intellectual property rights. One of the influential energy-saving service brands in China. It’s one of the two domestic companies with prime contractor qualification and accomplishment of nuclear Power HVAC system. It’s also the one of most influential energy saving service brands in China.

    The company has more than 40 subsidiaries with 8 of them located overseas. It has set up research centers and production bases in the U.S, Thailand, Japan, South Korea and Germany. Our marketing network covers more than 20 provinces and areas in China as well as countries and regions including North America, South America, Europe, East Asia, Southeast Asia, the Middle East, Australia and Africa etc.

    The company have won National Quality Award, National Innovative Pilot Enterprise, the Second prize of National Science and Technology Progress Award., China’s Ten Contribution Units for Energy Conservation, National Model Home and other honorary titles.


    • 1987

      Establishment of Zhejiang Zhuji Diankou Zhenxing Spring Factory, the predecessor of DunAn

    • 1990

      Establishment of Zhuji Light Industry Machinery Supporting Factory (entered refrigeration fittings industry in 1992)

    • 1995

      Establishment of Zhejiang DunAn Machinery Co., Ltd.

    • 1998

      DunAn entered central air-conditioning field

    • 2003

      Establishment of provincial postdoctoral research workstation (upgraded to national level in 2008)

    • 2004

      DunAn Environment (002011) listed on the ShenZhen Stock Exchange

    • 2007

      Completed directed acquisition of DunAn Precision Refrigeration Fittings via private placement and achieved overall listing of DunAn’s refrigeration business.

    • 2008

      "DunAn" was named as "China Famous Trademark"

    • 2009

      Became the first domestic manufacturer equipped with nuclear water chiller system for nuclear power station

    • 2010

      Entered renewable resource and energy saving business

    • 2011

      Acquisition of Microstaq Co. Ltd in USA

    • 2012

      DunAn Environment was granted "National Quality Award"

    • 2012

      Obtained the HVAC turnkey contract for Jiangsu Nuclear station

    • 2013

      DunAn Energy won "2012 The Most Growth Enterprise of Energy Saving Service Industry in China”

    • 2014

      Entered MEMS pressure sensor industry

    • 2014

      Micro channel heat exchanger project won the second prize of National Science and Technology Progress Award.

    • 2015

      Accelerated overseas layout by establishing heat exchanger and tubes production base in Tennessee, U.S.A

    • 2016

      Entered the field of thermal management of new energy vehicles

    • 2017

      Formal launch of Integrated Product Development project reform

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    Global DUNAN

    The North America

    In 2006, DunAn Precision Industry (U.S.) Co., Ltd. was established;
    In 2011, as an entry point to silicon-control micro-electronic field, U.S. Microstaq, Inc. was acquired by DunAn ;
    In 2014, U.S. MICROLOX TECHNOLOGY. INC. was acquired by DunAn to enter sensor field;
    In 2015, DunAn U.S. Precision Manufacturing Co., Ltd. was established in Tennessee, and its first-phase project was mainly about a heat exchanger and tube production base, which is a DunAn U.S. manufacturing center to radiate north and south America markets.


    In 2007, DunAn (Thailand) Metal Co., Ltd. was established.


    In 2014, Japan DunAn International Inc. was established.


    In 2016, DunAn Korea Inc. was established.


    In 2015, DunAn International (Europe) Co., Ltd. was established.

    Subsidiaries (branches) , R & D bases and production bases in U.S.A, Japan and Thailand;

    Sales markets in North America, South America, Europe, East Asia, Southeast Asia, Middle East, Africa and other countries and regions


    Strength List

    National Quality Award

    China Famous Brand

    Zhejiang Governmental Quality Award

    Energy saving-ten major contributive enterprises

    China’s first to have 1st grade qualification of air purification special engineering

    Innovation List

    National Innovative Pilot Enterprise

    Second Prize of National Award for Science and Technology Progress

    National-recognized Enterprise Technology Center

    National Postdoctoral Research Workstation

    Academician Workstation

    National Intellectual Property Pilot Company


    Innovation System

    Focus on Innovation by encouraging research and tolerating failure Set R&D investment according to sales revenue by precentage Annual evaluation on input and output efficiency

    Innovation Incentive

    Merit Prize for Innovation, Prize Amount: 1 Million to 10 Million RMB
    Prize for Innovation Contribution, Prize Amount: 100k to 1 Million RMB

    Talent Training

    “521”Talent Project, DunAn Business School cooperation with famous high education institutions, E-learning platform, Comprehensive training system



    Sunshine:Positive culture is from positive quality

    Make sure :(1)Make sure operation consist with regulation(2)Make sure to deliver good quality product to customer timely(3)Make sure to pay payables timely

    Management Forum: Chief officer’s involvement in a regular manner;goal alliance and conduct regulation

    Communication:President mailbox、Meeting with employees、Constructive suggestion management system

    Thoroughly implement :Quality、Environment、Career health management


    Develop:Both for the Company and individuals

    “Energy Saving、Low Carbon Dioxide and Environmental friendly ”

    Comprehensive Training System

    3 Channels for Career Development(Operation, Management, Technology)

    Co-development with the whole supply chain


    Share:Share Interest, ability, resource, and warm

    “4 High”Strategy for Intelligent:High Quality、High Sense of Responsibility、High Contribution、High Remuneration

    Competitive Remuneration: In industry and in region

    High incentives:Merit Prize for Innovation 、Prize for Innovation Contribution

    Variance Incentive method:Bonus for exceeding, Bonus for New Product、Program Bonus