立國工程股份有限公司 LEEKUO |煉油石化設備、熱交換器、纏管式熱交換器、加熱爐

Our Business Units

Leekuo Group is composed of three core business units — Leekuo Engineering, Liang-I Engineering, and LeeAnn — forming an integrated system that spans equipment manufacturing, engineering services, and digital transformation applications. Together, these units drive advancements in energy efficiency, process optimization, and AI smart safety solutions.

LeeKuo Engineering

Specializing in R&D, manufacturing, installation, and maintenance of heat exchangers and refinery equipment

Liang-I Engineering

Focused on turnaround projects, quality control, and maintenance records management

LeeAnn Technology

A digital innovation platform that merges traditional field expertise with modern cloud intelligence

Leekuo Engineering

Leekuo Engineering manages the Group’s core business operations, focusing on the research, manufacturing, installation, and maintenance of heat exchangers & refinery equipment. With rigorous quality control and a commitment to technical advancement, Leekuo Engineering delivers reliable, one-stop solutions to ensure stable and efficient project execution. Its professional service standards have earned long-term client trust and a strong reputation for performance across the industry.

Nearly 60 years of expertise in R&D and manufacturing

Recognized for quality, service, and customer satisfaction

Liang-I Engineering

Liang-I Engineering specializes in the execution of turnaround projects, combining expert teams with structured planning to ensure construction quality, schedule alignment, and thorough maintenance documentation that drives operational efficiency.

With almost 60 years of expertise in heat exchanger disassembly, manufacturing, and repair, Liang-I continues to advance its technical capabilities while expanding into new service areas. Its growing portfolio of turnaround projects for Taiwan’s refining and petrochemical sector positions the company as a key force in industrial upgrading, asset optimization, and sustainable growth.

One-stop service packages

Long-term client trust and satisfaction

LeeAnn Tech

LeeAnn Tech serves as the Group’s digital innovation platform for the future, bridging traditional field-based engineering with modern cloud intelligence. It introduces AI-powered safety management and data-driven solutions into industrial settings, helping clients to implement full-scale of digital transformations, enhancing operational efficiency, and pioneering new standards in AI safety and innovation management.

Rooted in the Group’s technical foundation, LeeAnn Tech has quickly gained recognition across the industry and is now spearheading Leekuo Group’s transformation, injecting new energy into a legacy enterprise, charting a path toward a smarter future.

Innovative energy-saving and carbon reduction processes

AI-powered smart safety systems

LeeAnn Tech

Global Presence

Leekuo Group has actively expanded its international footprint over the years. Through strategic global partnerships, we have established strong collaborative relationships and provide integrated services across borders.