World Top Technology > Company Information > History

02.
Supplied hybrid solar street light to Yeosu EXPO Town

11.
Supplied solar street light (STL-200) to Cheolwon Elementary School
02.
Supplied solar street light (STL-200) to Tamra Middle School

11.
Supplied solar street light (STL-200) to Shinsung ENG
10.
Supplied solar street light (STL-200) to Kang Seo Middle School
09.
Supplied solar street light (STL-200) to Chuncheon Education Department
Supplied solar street light (STL-200) to Namsan Elementary School
08.
Supplied solar street light (STL-200) to POSCO R&D Center
05.
Supplied solar street light (STL-200) to Hupyeong Middle School
03.
Supplied solar street light (STL-200) to Kosan Elementary School

11.
Supplied solar street light (STL-200) to Oryu Middle School
Supplied solar street light (STL-200) to World Cup Stadium
Supplied solar street light (STL-200) to Yeongheung Middle School
Supplied solar street light (STL-200) to Cheonan Distribution Center
10.
Supplied solar street light (STL-200) to Yangju Yunggot Park
09.
Supplied solar street light (STL-200) to Yongin/Pangyo area
08.
Supplied solar street light (STL-200) to Yongin/Heungduk area
03.
Supplied solar street light (STL-200) to Unseo area, Incheon
Supplied solar street light (STL-200) to LH
Supplied solar street light (STL-200) to Incheon Jungu government Office
02.
Supplied solar street light (STL-200) to Yeonjong Kindergarten

12.
Supplied solar street light to Himang Children¡¯s Park
Supplied solar guide light to Chunji Landscaping Co.
11.
Supplied solar street light to RDA
Exported solar street light (STL-200) to Pellegrino Trading Co., Canada
10.
Supplied solar street light (STL-200) to Damyeong E&S
Supplied solar street light (STL-200) to South Incheon Education Department
07.
Installed solar street light (STL-200) for Semes Co.
Supplied solar street light (STL-200) to South Daduk Education Department
06.
Supplied solar street light (STL-200) to Whajeong Elementary School
Supplied solar street light (STL-200) to Dongbang Industrial Lighting
Supplied solar street light (STL-200) to Joyung Elecom
05.
Supplied solar street light (STL-200) to Subyun Park
01.
Installed lighting system for advertisement at Haeundae BEXCO bus station
Supplied solar guide lighting to Nanam ALD

12.
Installed 2.5kW integrated solar power system at Yeongdeungpo Community Center for Disabled people
11.
Made a draft contract with Public Procurement Service (No: 20704978)
Installed solar street light at KEPCO Busan Yunbyun Substation
Installed 5kW integrated solar power system at Tanhyun Munhwaeyujip, Ilsan
10.
Supplied solar guide lighting to Nanam ALD
08.
Received certificate of ISO14001 ECO Management System
Selected as Kibo A+ Member
06.
Selected solar street light as Excellent Product from Public Procurement Service.(No: 2007125)
Supplied solar street light (STL-100, STL-200) to Korea inCOA
05.
Installed solar street light (STL-200) in Jeongsun
04.
Supplied stand-alone solar power system to KEMCO
Selected as Gyeonggi Frontier Company
03.
Supplied solar decoration light to Dongyang Electric
Supplied solar street light (STL-200) to Korea inCOA
02.
Installed 3kW integrated solar power system in Pyungtaek
Exported solar street light (STL-100) to Philippine
Installed lighting system for advertisement at Haeundae bus station
01.
Exported solar street light to Solarelectic Co., Philippine

12.
Installed solar street light in Jeongsun government building
11.
Supplied solar guide lighting to Nanam ALD
Installed solar street light (STL-200) in Incheon government building
08.
Made a contract of exporting solar street light to Greece
Made a contract of exporting solar street light to Israel
Made a contract of exporting solar street light to Kazakhstan
07.
Exported solar street light to Pilot Co., Taiwan
06.
Installed solar street light for 'Hyundai I-PARK' in Ilsan
Certified 'ECO Product'
05.
Exported solar street light (STL-200) to Dandong, China
04.
Supplied solar guide lighting to RGB Co.
03.
Exported solar street light (STL-200) to Dandong, China
02.
Installed solar garden light in Incheon government building

12.
Registered as a company for new renewable energy
Installed solar street light (STL-200) in the presidential palace of Philippine
11.
Installed solar street light (STL-200) at Yeosu Airport
10.
Made contract of exporting 10 million dollar of solar lights to Philippine
08.
Installed solar guide light on the bike road in Seochun
05.
Sold solar street light to a government agency
04.
Started service for mobile game ¡®Blue Yard¡¯ (SK Telecom)
03.
Joined the bid for solar power module in Bangladesh

12.
Received certificate of ISO 9001
Received certificate of NEP
11.
Achieved exporting of one million dollar of Air Cleaner
09.
Registered as a company specializing in parts
Received factory registration certificate
08.
Selected as INNO-BIZ firm
03.
Released slim type Air Cleaner
02.
Became a member of KITA
Started service for mobile game ¡®Lupin¡¯s Adventure¡¯ (SK Telecom)

03.
Developed a car inverter (does not use Linear Transformer)
02.
Developed UPS (does not use Linear Transformer)
01.
Started mobile game business
Released a commercial product using true sine wave circuit
Developed portable generator (does not use Linear Transformer)

10.
Applied for a patent on UPS using sine wave circuit in Korea and three other countries
07.
Selected as Promising Small Business Firm in Gyeonggi-do

12.
Registered as Venture Firm
04.
Started business of solar power system

08.
Changed company name from Sewon Electronics to World Top Technology

10.
Opened R&D center
07.
Joint development of semiconductor communication device
03.
Registered as Jinhwa¡¯s partner company; SMPS for railroad signaling

12.
Registered as KT¡¯s partner company; videophone, SMPS for CCTV. And DC/DC Converter
07.
Started business as Venture Firm
KODICOM ? SMPS for CCTV
JOEUN TECH - SMPS for cooling machines in semiconductor production line

06.
Registered as Samsung Airlines¡¯ partner company
Developed DC/DC Converter for digital still camera
03.
Registered as Hyosung¡¯s partner company
Developed banking SMPS and DC/DC Converter

10.
Founded Sewon Electronics

 

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