Convergence is the heart of the change in the era of the 4th industrial revolution. The Convergence System R&D Division is the technology fusion workshop that builds unpredicted future by combining infinite number of technology DNA pieces. In the age of digital transformation, to realize data-centric and hyper-connected intelligent information society, our research works focus on autonomous intelligent IoT, data hub and digital twin technologies that provide autonomous connectivity, self-judging and mutually collaborative capabilities of things. To carry out the digital medical era, we also research on AI digital healthcare such as digital diagnosis, treatment and medical twins. Also, cloud native and edge computing technologies for distributed big data processing, and human-AI interaction are also included in the research scope. In addition, we aim to work on the metaverse platform technology that enables user interaction based on experience and participation, which is the core of the contact-free era where the real and virtual worlds are integrated. Data standardization on gas and thermal energy with industrial big data platform are also covered by our technology convergence. Experiencing the technology convergence era, we provide all our support to companies to improve their business competition.