CURRICULUM VITAE

Name: Chang Yun, Joo

Nationality: Korean

Date of Birth: 03 January 1967

Marital Status: Married

Profession: Professional Civil Engineer

Address: Gwanggyo I-Park 102-1503, 80, Gwanggyohosugongwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Phone (private): +966 (0-59-093-**** (Mobile) - KSA (currently)

+82 (0-10-443*-**** (Mobile) - South Korea

e-mail (company): adgerr@r.postjobfree.com

e-mail (private): adgerr@r.postjobfree.com (currently)

Visa status(Saudi Arabia): Residency Visa (Transferable) Professional Civil Engineer currently working with Khatib & Alami. Over 26 years' experience of project management, multidisciplinary design, provision of expert advice and site supervision of a variety of projects such as railways, metro infrastructures, and depots as well as civil infrastructural works which include bridges, TBM / NATM tunnels, highways, roads, in South Korea, KSA, Japan and Vietnam. In summary, I have extensive 13 years-experiences in railway, metro projects and 13 years in highway and civil infrastructural projects.

Key Qualifications:

Professional Civil Engineering Certificate issued in Korea (Reg. No. 981*********, 1998) Member of Korea Professional Engineer Association (KPEA) Member of Korean Society of Civil Engineers (KSCE) Member of Saudi Council of Engineers (SCE)

Education:

1993 – 1995 Bachelor of Civil Engineering Degree, College of Engineering, Seoul National University of Science & Technology, Republic of Korea

1986 – 1988 Civil Engineering, Inha Technical College, Republic of Korea Employment:

Sep. 2018 - Present KHATIB & ALAMI. Co. (in Kingdom of Saudi Arabia)

(www.khatibalami.com)

Jan. 2018 - Aug. 2018 Green Innovation Engineering Co., LTD (in Korea) Oct. 2015 - Jan. 2018 Louis Berger Co. (in Kingdom of Saudi Arabia)

(www.louisberger.com)

May. 2002 - Jan. 2015 Doosan Heavy Industries & Construction Co., Ltd. (in Korea)

(www.doosanheavy.com)

Dec. 1994 - May. 2002 Doosan Engineering & Construction (in Korea)

(www.doosanenc.com)

Mar. 1990 - Apr. 1992 TOMIJIMA Construction Co., Ltd. (in Japan)

(www.tomijima.com)

Selected Reference: (Project basis)

September 2018 – Septmber 2020, Present.

Project: Taif Arafat WTS project

- Client: Saline Water Conversion Corporation

- Company: Khatib & Alami. Co.

- Position: Senior Tunnel Engineer (Senior Civil Engineer) Description:

Responsible for supervision of construction of

- Construction of Pipe Tunnel : to perform a tunnel for the pipe with Diameter of 8.4m, 12.5 kilometers length using Gripper TBM machine.

- Pipe laying Works : apply the CML and the Coating for the pipes, and then the works of the laying and welding. January 2018 – August 2018 Project: The Southwest corridor - double-track electrification projects Daegok~Sosa sections

- Client: Korea Rail Network Authority

- Company: Green Innovation Engineering Co., LTD

- Position: Project Engineer (Senior Civil Engineer) Description:

Responsible for both design and construction of the sub- structure and superstructure of

- 156 elevated viaduct spans (typ.30m). The 156

foundations and piers were supported on over four

thousand 1.2 meter diameter bored piles. The viaduct superstructure consisted of cast-in-place and precast concrete girders using Full-Span-Launching, Balanced Cantilever and Cast-in-Place Methods. The design

accounted for seismic, climatic and dynamic loading conditions based on Korean, Japanese, American and European design codes.

- 4 elevated stations with one transfer station connecting with commercial complex in the vicinity of Seoul

October 2015 – January 2018 Project: Riyadh Metro Project Package 3, Kingdom of Saudi Arabia

- Client: Arriyadh Development Authority (ADA)

- Company: Louis Berger Co.

- Position: Resident Engineer, Line 5 (Senior Civil Engineer)

- Project Cost: USD (22.5Billions) – Design & Build Contract

Description:

Responsible for PMCM of a deep underground station

(138m long, 26m deep), a TBM exit shaft (36m deep, D=24m) and 2km long TBM tunnel (Diameter 9.775m,

Total Length = 11 km) on Civil, MEP, Archtectural Works, Track works and Core Systems on Riyadh Metro Line 5 supervising (Verification and Validation) the followings:

- Design/Construction Deliverables

- Interface Coordination Issues on both External and Internal stakeholders

- Project Planning / Cost Control

- Review of Shop Drawings, Method Statements, ITPs and As-Built submittals

July 2012 – December 2014 Project: Railway New Bundang Line, South Korea

- Client: Korea Rail Network Authority

- Company: Doosan Heavy Industries & Construction Co.

- Position: Construction Manager

- Project Cost: USD 100Millions

Description:

Responsible for

- Planning & Construction Management of Civil

Infrastructures and Building Works of Depot (area

145,000 sqm) stabling, and light/heavy maintenance workshops, which require all construction discipline integrated including Civil, Buildings, E&M services

(MEP), Tracks (ballast), and Rolling Stocks.

- Installation management of Systems at construction stage

(Power Supply, Wayside, Signal & Communication)

- Interface management on technical issues with Major Rail Interface Parties i.e. between Systems, MEP and Civil Works, Buildings

June 2009 - July 2012 Project: Vietnam Highway project, Package-6, Vietnam /ADB funded project

- Client: Vietnam Expressway Cooperation(VEC)

- Company: Doosan Heavy Industries & Construction Co.

- Position: Construction Manager

- Project Cost: USD 120Millions

Description:

The project locations was the area of mangrove swamp which required heavy soil improvement replacing with suitable materials and soil grouting by using the

methodology of the followings: Space Grouting Rocket

(SGR), Jumbo Special Pile (JSP), Rod in Jet Pile (RJP) particularly at tunnel launching shaft area.

The works are mostly of cut and fill earthworks and 35 bridge structures inclusive of pre-stressed Girder bridges as well as a NATM tunnel (450m), 260 box

culverts and 252 pipe culverts for ancillary works. Responsible for:

- Design and construction management of in total 40km long highway bridges, a tunnel and other structural works.

- Design and construction Interface Management with external interface parties (stakeholders), and local authorities.

December 2008 - July 2009 Project: Railway Depot in Susaek, South Korea

- Client: Korea Rail Network Authority

- Company: Doosan Heavy Industries & Construction Co.

- Position: Construction Manager

- Project Cost: USD 150Millions

Description:

Responsible for

- Planning & Construction Management of Depot (area 115,000 sqm) where the structures were sitting on soft ground (natural N value 3~4) which were to be soil improved with sand mat and piles.

- Construction of 3km Cut & Cover tunnel, 2 U/G Stations.

- Coordinating technical design interfaces with Core Systems and Trackworks

May 2004 - December 2008 Project: Busan-Ulsan Highway, South Korea

- Client: Korea Highway Corporation

- Company: Doosan Heavy Industries & Construction Co.

- Position: Construction Manager

- Project Cost: USD 110Millions

Description:

Responsible for

- Construction management of in total 4.5km long highway, which include I.LM bridge (L=1.3km) highway and

associated works i.e. surface drainage, slope protection, earth, paving, traffic signals works and road scaping works.

May 2002 - May 2004 Project: Chunan-Byungchun Road Rehabilitation, South Korea

- Client: Minstry of Land, Infrastructure and Transport

- Company: Doosan Heavy Industries & Construction Co.

- Position: Deputy Construction Manager

- Project Cost: USD 90Millions

Description:

- Site supervision related to road rehabilitation and associated works including surface drainage, pc beam, slope protection, wastewater treatment, earth works and paving works.

- The works are mostly of cut and fill earthworks and 12 bridge structures inclusive of pre-stressed Girder bridges as well as a NATM tunnel (800m), 50 box

culverts and 35 pipe culverts for ancillary works. June 1997 - May 2002 Project: Railway Busan Subway Line-2, South Korea

- Client: Busan Transportation Network Authority

- Company: Doosan Engineering & Construction

- Position: Deputy Construction Manager

Description:

Responsible for

- Integrated Design of Depot (area 120,000sqm) including Civil, Buildings, Utilities, E&M (MEP) services.

- Construction Supervision of 20,000lm (D=1200mm) of bored piling, 30,000lm (D=600mm/450mm) of

concrete and steel piling with foundation works.

- Design Interface on technical issues with Core Systems, / Trackworks

- Construction of 1.7 km long TBM tunnel on Civil

December1994 - June 1997 Project: West coast Highway, South. Korea

- Client: Korea Expressway Corporation

- Company: Doosan Engineering & Construction

- Position Site Engineer

Description:

Responsible for

- Site construction related to Highway and associated works including surface drainage, structures, earth works and paving works.

March1990 - April 1992 Project: Anwiankwanta-Yomoransa Highway, Ghana, Africa

- Client: CPC

- Company: TOMIJIMA Construction Co.

- Position Site Engineer

Description:

Responsible for

- Site construction related to Highway and associated works including surface drainage, bridge, earth works and paving works.

Language Skills:

Korean: Mother tongue

English: Good at both spoken and written

Japanese: Good at spoken

Submission date : 10 – Sep - 2020

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