
| 2026 | · Chnage company name DHC (Daihan Climate) → AST (Air Solution Technology) |
|---|---|
| 2024 | · Success of the national project for the development of membrane filtration and concentrated wastewater heat recovery heat pumps |
| · Patent Registration: Mold for flat tube extrusion molding and cooling system for flat tube extrusion molding having the same, flat tube molding equipment | |
| 2023 | · Patent Registration: Automated System for Transporting Vehicle-Loading Components |
| 2022 | · Venture Business Award (Small and Medium Business Administration) |
| · Successful Completion of National R&D Project: Micro-extrusion technology for flat tubes for heat sinks with corrosion penetration resistance of over 1,800 hours | |
| in salt spray tests to meet the requirements of global clients | |
| 2021 | · Merit Award at the Korea Small and Medium Business Convention (Presidential Commendation) |
| 2020 | · Gwangju Jingok Plant Production |
|---|---|
| 2019 | · Air Conditioner Assy Module Start (Indoor, Outdoor) |
| 2018 | · Adoption of IFRS (International Financial Reporting Standards) |
| 2017 | · Certified Family-Friendly Enterprise |
| 2016 | · Business Agreement for Renewable Energy Distribution (Seoul Jung-gu Office) |
| 2015 | · Production Launch of Extrusion Machine No. 2 |
| · Establishment of Overseas Subsidiary in Vietnam | |
| 2014 | · Patent Registration: Heat Pump System with Continuous Counterflow Heat Exchanger |
| · Awarded the $30 Million Export Tower | |
| 2013 | · K-Mark Certification (Geothermal Heat Pump Unit) |
| · ISO/TS 16949 Quality Management System Certification (Manufacturing and Additional Services for Aluminum MC-Tubes Used in Air Conditioning and Automotive Applications) | |
| · Awarded the $20 Million Export Tower | |
| 2012 | · Patent Registration: High-Pressure Oil Separator with an Elastic Member |
| 2011 | · Certified Reliability for Air Conditioner Condensers |
| · Joint Business Agreement for Geothermal, Air-Source, and Waste Heat Pump Systems (Kolon Environmental Services, Kotec Engineering) | |
| · Completion of Gwangju Factory | |
| · Production Launch of Extrusion Machine No. 1 (MicroTube for COND & EVAP applications) | |
| · Patent Registration: Internal Heat Exchanger for Heat Pump Systems. | |
| · Patent Registration: Water-to-Refrigerant Heat Exchanger for Heat Pump Systems | |
| · Patent Registration: Heat Pump System with a Circulating Water Temperature Rise Heat Exchanger | |
| · Successful Completion of National Project: Development of an Indoor Heat Exchanger for CO₂-Based Heating and Cooling Systems |
| 2010 | · Registered as a Construction Business (Mechanical Equipment Installation Works) |
|---|---|
| · Establishment of Overseas Subsidiary in China | |
| · Registered as a Refrigeration Equipment Manufacturer | |
| · Certified for New and Renewable Energy Facilities | |
| · Successful Completion of National R&D Project: Development of a High-Efficiency Geothermal Heating, Cooling, and Hot Water System Using CO₂ | |
| · Heat Pump Production | |
| 2009 | · Patent Registration: High-Pressure Refrigerant System with a Multi-Pass Heat Exchanger for Hot Water Supply |
| · Certified as a Venture Business | |
| · Recognized as an Innovative Small Business (INNO-BIZ) | |
| · Designated as an IBK FAMILY Enterprise | |
| · Selected as a Model Company for Labor-Management Cooperation | |
| · Registered as a Specialized Renewable Energy Company (Geothermal Energy) | |
| · Patent Registration: User Interface System and Method for Information Processing Terminals Utilizing Host Resources | |
| · Patent Registration: Communication Method Between Portable Devices and External Accessories | |
| · Utility Model Registration: USB Device and Three Other Innovations | |
| 2008 | · Patent Registration: High-Pressure Refrigerant System with an Integrated Gas Cooler and Intercooler |
| · Patent Registration: High-Pressure Refrigerant System Equipped with an Inclined Helical Coil Heat Exchanger | |
| 2007 | · Establishment of an In-House Research Institute |
| · Obtained Eco-Partner Certification | |
| · TG Kim Appointed as CEO | |
| · Undertook a National R&D Project: Development of a High-Efficiency Geothermal Heating, Cooling, and Hot Water System Using CO₂ | |
| 2006 | · Bronze Award for Outstanding Partnership: Samsung Gwangju Electronics |
| 2005 | · K-Mark Certification: Electrical Appliance Safety Certification |
| 2004 | · Gold Award for Quality Innovation: Samsung Electronics |
| · Implementation of a National R&D Project: Development of an Indoor Heat Exchanger for CO₂-Based Heating and Cooling Systems | |
| · ISO 14001 Certification: Environmental Management System | |
| 2003 | · SQCI Certification |
| · OEM Air Conditioner Production | |
| · Establishment of Overseas Subsidiary in Thailand | |
| · ISO 9001 Certification: Quality Management System | |
| 2002 | · Recognized as a Promising Small and Medium Enterprise |
| 2001 | · Company Established with a Capital of 3 Billion KRW |
| · Heat Exchanger Production |