Project: O&M project in United States Forces Korea Manage and support the work of project managers. Handle in the initial RFQ/ITB preparation of the project and received the project order and successfully completed the project. Review and correct gas-related rotating machinery/engineering documents Supervise the quality and delivery management of various foreign materials (Machinery, Gas Supply Equipment, Offshore Materials) Review and revise gas-related mechanical/piping engineering documents Master Schedule management Equipment purchase schedule management Project supervisor Commissioning schedule supervision Review Performance Test

Responsibilities: Project ManagerProject: EcoProAP Pohang ASU Gas Plant ProjectParticipate in the project as a PM, participate in design from the work stage in the engineering field, and perform plant construction and commissioning work. Confirmation of ASU Plant Concept ASU and auxiliary equipment design review Review of ASU mechanical/piping engineering documentation Acquisition of license for ASU Plant Supervise the quality and delivery management of, major foreign materials (Compressor, PPU, Turbo-expander, Liquid Gas Pump, Coldbox, etc.) Master Schedule creation and management Equipment purchase schedule management Construction supervising Commissioning work supervising

Responsibilities: Project ManagerProject: Danil Gaschem Dragon ASU Gas Plant ProjectParticipate in the project as a PM, participate in design from the work stage in the engineering field. Confirmation of ASU Plant Concept ASU and auxiliary equipment design review Review of ASU mechanical/piping engineering documentation Acquisition of license for ASU Plant

Project: Brian D. Allgood Army Community Hospital Project Gas & Vacuum System, Healthcare EquipmentParticipated in the initial RFQ/ITB preparation of the project and received the project order and successfully completed the project. Review and correct gas-related rotating machinery/piping engineering documents Supervise the quality and delivery management of various foreign materials (Compressor, Vacuum Pump, Gas Supply Unit, Offshore Materials) Review and revise gas-related mechanical/piping engineering documents Master Schedule creation and management Equipment purchase schedule management Construction supervisor Commissioning schedule management Conducting Performance Test

Responsibilities: Project ManagerDetailed work: Participated in the RFQ/ITB preparation at the beginning of the project, received the project order, and successfully completed the project.Project: Hospital Addition/Alteration, O-san Airbase Gas & Vacuum System Project Manager. Review and revise gas-related rotating machinery/piping engineering documents Supervise the quality and delivery management of various gas-related foreign materials (Compressor, Vacuum Pump, Gas Supply Unit, Offshore Materials) Master Schedule creation and management Equipment purchase schedule management Construction supervisor Commissioning schedule management Conducting Performance Test

Responsibilities: Design and construction managementDetailed work: Reviewed and revised gas-related rotating machinery/piping engineering documents Supervised the quality and delivery management of various gas-related foreign materials (Compressor, Vacuum Pump, Gas Supply Unit, Offshore Materials) Performed government approvals and permits.Major Achievements: Danil Gaschem Ochang Factory Specialty Gas Factory Construction Project Danil Gaschem Ochang Plant H2/O2 Generation Plant & Filling Station Construction Project Seoul Boramae Hospital’s umbilical cord blood liquid nitrogen supply facility certification, permit and construction management Yen Bai Hospital in Vietnam successfully achieved in technical proposals and price proposals. Veterinary Clinic & Medical/Dental Clinic, Midtown Community Support, USAG Humphreys architect technical proposal and design support

Responsibilities: Design, estimate and construction managementDetailed work: Semiconductor UHP and Bio-Pharmaceutical Plant gas related design, estimate and construction management Review and revise semiconductor UHP and Bio-Pharmaceutical Plant gas-related rotating machinery/piping engineering documents Construction and quality manager workMajor Achievements: LGD P-8 Paju Plant L-He Supply System Design and Construction LGD P-6E Gumi Plant CGSS Building Toxic Gas Supply System Construction LG Solar Gumi Plant BSGS Quality Manager Ildong Pharmaceutical Anseong Plant PW, WFI, PS, Gas Utility Division Design

Responsibilities: Design, estimate and construction managementDetailed work: Review and correct gas-related rotating machinery/piping engineering documents Supervise the quality and delivery management of various foreign materials (Compressor, Vacuum Pump, Gas Supply Unit, Offshore Materials) Review and revise gas-related mechanical/piping engineering documentsMajor Achievements: Shinsung Construction Co., Ltd. Chungju plant construction manager for cryogenic bulk oxygen and bulk carbon dioxide supply facilities Konkuk University Chungju Hospital cryogenic bulk oxygen supply system design Renewal 121st General Hospital-Phase 2 Quality Manager for Medical Gas Supply Piping and Hospital Utilities Add/Alt US Army 121st General Hospital-Phase 1 Medical Gas Supply Piping and Hospital Utilities Quality Manager Samsung Medical Center Gangbuk Samsung Hospital extension and high-pressure gas supply facility relocation construction quality manager Yonsei University Severance New Hospital new hospital construction and high-pressure gas supply facility quality manager Yonsei University Advanced Research Center R&D Center Utility Design

Responsibilities: Construction managementDetailed work: Review and correct gas-related rotating machinery/piping engineering documents Supervise the construction quality control Performed consulting on licensing and licensing for underground pipeline facility.Major Achievements: Daehan City Gas (currently, SK Gas) Gwacheon area underground pipeline old pipe (LNG) replacement construction manager Daehan City Gas (currently, SK Gas) construction manager for replacement of old underground pipelines (LNG) in Seoul area