D-U-N-S® Certified Profile

Business Basic InformationVerified by D&B
D-U-N-S® Number	65-877-4294
Business Registration No.	27403815
Company Name	CSI TECHNOLOGY CO., LTD.
Company Type	a private company limited by shares
Company Operating Address	17F-6, 925, Taiwan Blvd., Sec. 4, Xitun Dist., Taichung City, Taiwan
Phone	+886-4-23582908
Fax	+886-4-23586263
Email	Contact Us
Company Website	www.hamak-tech.com/
Taiwantrade Website of Company	hamaksolar.en.taiwantrade.com/
Line of Business	Mechanics, Telecommunications and Electricity Facilities Installation Service of Engineering, Procurement, Construction, Operation and Maintenance for solar PV system. Wholesale of Electronic Equipment and Parts Distributing the equipment of solar PV system. Other Professional, Scientific and Technical Activities Not Elsewhere Classified
Main Products	On-Grid PV Inverter - DELTA EV Charger - DELTA Aluminum Solar PV mounting System Solar Mounting Canopy Structures Solar Motor Drive Hybrid PV/AC Power System Off-Grid Inverter With PV charger PV Charge Controller Solar Power Monitoring System Solar Powered RO Desalination System
Brand Name	HAMAK JASON'Solar Water SharkParking
Agency Held	DELTA
SIC Code	17310300, 50630000, 87420400, 50630400
Employee Here	50~99
Employee Total	50~99

About CompanyProvided by Customer

CSI Technology Co., Ltd. (brand name: HAMAK) is a leading Taiwanese system integrator with nearly two decades of expertise in renewable energy and sustainable solutions. Specializing in photovoltaic (PV) systems, energy storage, electric vehicle charging infrastructure, and advanced solar water desalination system, CSI provides comprehensive, turnkey green energy solutions tailored for businesses seeking carbon reduction and sustainability transformation. Since 2015, CSI has proactively expanded its footprint internationally, exporting Taiwan's renewable energy technology and experience, with a focus on PV inverters, solar mounting systems, and solar-powered seawater desalination equipment. Today, CSI maintains active offices in both the Philippines and Vietnam, positioning itself as one of Taiwan’s foremost companies successfully delivering renewable energy applications throughout Southeast Asia. Driven by innovation, integrity, and a strong commitment to environmental responsibility, CSI continues to empower clients worldwide in achieving their sustainable development goals and fostering a greener future.

Business Registration InformationVerified by D&B
Registration Date	2004/07/21
Authorized Capital	TWD 100,000,000
Paid Up Capital	TWD 60,000,000
Registration Address	17F-6, No. 925, Taiwan Blvd., Sec. 4, Xitun Dist., Taichung City
Name of Representative	Liao, Zhen Song
Registraction Authority	Taichung City Government

Management InformationVerified by D&B
Name	Jobtitle	On board date
Liao, Chen Sung	President

Trading CapabilityVerified by D&B

No. of Foreign Trading Staff 5 Year Exchange Rate(USD) Sales Figure(USD) Export Value(USD) Import Value(USD) 2024 31.00 16,200,000 1,500,000 0 Sales Territory Local Percentage Export Percentage Export Country Export Country Percentage 90.75% 9.25% Asia/Pacific 9.25% Bureau of Foreign Trade Information Import Qualification YES Export Qualification YES Actual Import/ Export Value Range Year Range Import Volumn (USD) Export Volumn (USD) 2024 0~500,000 0~500,000 2023 0~500,000 0~500,000 2022 0~500,000 0~500,000 2021 0~500,000 0~500,000 2020 0~500,000 500,000~1,000,000 2019 0~500,000 0~500,000 2018 0 0~500,000 2017 0~500,000 0~500,000 2016 0~500,000 0~500,000 2015 0 0~500,000

PartnerProvided by Customer

Type of Partner Name Country The Latest Year of Trading Supplier Delta Electronics, Inc. Taiwan 2025 Supplier Hamak Technology L.L.C. (USA) United States 2025 Customer Chunghwa Telecom Co., Ltd. Taiwan 2025 Customer EEI Power Corporation Philippines 2025 Customer CPC CORPORATION, TAIWAN Taiwan 2025

R&D Capability and Production CapabilityProvided by Customer

No. of R&D staff 12 R&D Expense to Revenue Ratio in the Most Recent Years 11.00%