Cylindarical Battery Department / Battery Business Division - LEE HYANG DOO

Mr.LEE HYANG DOO oversees the entire operation for managing organization, and direction and decision of business as Chief Executive Officer of Battery Business Division. After holding various managing positions at battery manufacturer Samsung SDI for 30 years, he worked at battery equipment manufacturer LEMON and MOT as Chief Executive Officer.

Cylindarical Battery Department - KIM HYEON SEOK

Mr. KIM HYEON SEOK is reponsible for the entire development of 46xx cylindrical battery. He held various positions in the field of development and production facilities at battery manufacturer Samsung SDI for 20 years, and developed batteries for mobile application and various types (prismatic, cylindrical and pouch) of Li-ion batteries.

Cylindarical Battery Department - CHOI IM GOO

Mr. CHOI IM GOO is reponsible for the development of 46xx cylindrical battery as a research fellow. After earning his bachelor and master degree at POSTECH, he worked at Kumho Petro and LG Chem and have achieved many achievements in techknowledge of Li-ion battery. He is a key developer of 46xx cylindrical battery.

Cylindarical Battery Department / Technical Team - JEONG JU SIG

Mr. JEONG JU SIG is resposible for technology and product development team. After holding various positions for Li-ion battery at Samsung SDI over 20 years. He worked at DLG&Evergrande in China as an assistant president. He has various experineces for development and production of the Li-ion battery over 30 years.

Cylindarical Battery Department / Technical Team - KIM BU YOUNG

Mr. KIM BUYOUNG is responsible for technology and product development as technical process engineer. He earned his bachelor, master and doctorate degree on the subject for Li-ion battery at Pusan National University, and solves technical and process issues in production line.

Cylindarical battery materials team / R&D center - LEE KYU YOUL

Mr. LEE KYU YOUL is responsible for development of materials for Li-ion battery. He earned his bachelor and master degree at Hong-ik University and his doctorate at Technical University of Berlin in Germany. He worked at Samsung SDI and Solvay in Korea and developed cells (prismatic and cylindrical) and materials (cathode, anode, and elctrolyte) for Li-ion battery over 20 years.

Management Planning Team - JANG HO CHEOL

Mr. JANG HO CHEOL is responsible for planning and managing of business as management planing team manager. He majored in business administration at Korea University. He worked in charge of management planning at Samchully and Sewon Cellontech for many years and is an expert in business planning.

Management Diagnosis Team - YI JONG DONG

Mr. YI JONG-DONG is responsible for the risk management of company and business as internal control & consulting team manager. He graduated at Yonsei University and holds Korean CPA and CTA qualifications.
He has worked at an accounting firm and Nonghyup for many years and has the ability to analyze and respond to various aspects of management situations in depth.

Management Accounting Team - JUNG SOOK KEE

Mr. JUNG SOOK KEE is responsible for accounting and management as management accounting team manager. He majored in accounting at university and has in-depth accounting knowledge. He work at KUMYANG over 30 years and has a deep understanding of our business.

Foaming Agent Lab - KIM MYEONG WOO

Mr. KIM MYUNGWOO is responsible for a development of a blowing agent. He has many years of experience in the field of foaming agent research, and has been in charge of foaming agent research at KUMYANG over 30 years and has built unrivaled capabilities in development of blowing agents.

Blowing Agent Lab - LEE SANG JIN

Mr. LEE SANG-JIN earned a bachelor's and master's degree in industrial chemistry at Pukyong National University.
As an technical expert in the field of blowing agents, he has experiences in the development of various blowing agents and plays a role in the development of blowing agents.