Chaowalak Haohan is a health, safety, and environment specialist with over 15 years of experience in industries including oil and gas, manufacturing, and construction. He currently works as an HSE specialist for Chevron Thailand Exploration and Production, where his responsibilities include supporting safety performance targets, enhancing training programs, conducting inspections, and investigating incidents. Previously, he held HSE roles for Weatherford KSP, Thainippon Steel Engineering & Construction, and Nakornthai Strip Mill. Haohan holds a Bachelor's degree in Sanitary Science and professional training certifications in safety management and as a radioactive safety officer.

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Chaowalak Haohan
99/192, Sukhapiban 5 road, Oo-
ngen, Saimai, Bangkok, 10220
(+66)89-623-1868
(+66)80-642-8383
chaowhao@hotmail.com
ABOUT ME
Specialist on Health Safety
Environment on business:
Oil and Gas Platform Operation
Oil and Gas Drilling Operation
Oil and Gas Construction
Oil and Gas FPSO, FSO, Tanker
Manufacturing of Automotive
Manufacturing of Steel Industry
Manufacturing of Electronic
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CHAOWALAK
HAOHAN
Health Safety and Environment
Specialist
EXPERIENCE
(2008 – present)
HEALTH EVIRONMENT SAFETY SPECIALIST
CHEVRON THAILAND EXPLORATION AND
PRODUCTION
1. Support Thailand Organization (Drilling Department) to achieve
Operational Excellent (OE) performance targets.
2. Support Thailand Organization (Drilling Department) to achieve
Business Plan performance scorecard targets by seeking opportunities
to eliminate low value added HES activities to optimize operating
costs.
3. Continue to enhance organization capability in technical and
leadership skill development (training, work assignment, coaching
mentoring, etc.)
4. Continuing to improve the effectiveness of OE processes focusing on
high priority OE processes and Process Safety Standards,
5. Support development and monitoring rig safe work practice on
activities: for example.
 Working at Height: Ensure that personnel performed the task at
height are competences and certified. Know the procedures,
equipment and PPEs required performing the task at height. Also,
ensure every aware and comply with emergency rescue plan.
 Confined Space Entry Only certified personnel to perform
confined space activities. Involved persons must understand
confined space procedures and requirements. Emergency rescue
plan and team must in place whenever a confined space activity
is conducted at the rig.
 Lifting and Rigging: make sure always have at least 1 banksman
and 2 riggers to perform lifting and rigging activities. Pre-
inspection of lifting equipment must be conducted and at least 2
taglines attached to the load.
 Log Out Tag Out (LOTO): Ensure everyone understand basic LOTO
requirements such as authorized person who can perform the
LOTO, Permit to Work, etc.
6. Conduct Verification &Validation, capture gaps and address to
concern parties for example: Drop Object Prevention, Lifting and
Rigging, Hand Injury prevention, working at Height, Spill Prevention,
SSE, Business Partner, Elevator Chang out Log, Energy Isolation, and
Confined Space Entry.
7. Conduct monthly chemical inspection.
8. Perform crew engagement program to ensure rig crew have incident

2. prevention awareness by conduct the engagement with questions.
9. Incident report and investigation to find out root causes and sharing
the lesson learn to other rig.
10. Perform weekly, monthly report including conduct interim and
annually CHESM Audit on rig and onshore.
(2006 – 2008)
QUALITY HEALTH SAFETY ENVIRONMENT ADVISER
WEATHERFORD KSP CO., LTD.
1. Develop QHSE Plan and Implemented to support the Business in
Thailand Unit and Central Asia Region (Thailand, Malaysia, Brunei,
Singapore and Vietnam)
2. Manage Quality, Safety, Security and Environment in Thailand Unit.
3. Used Weatherford Cooperate Tools and standard to manage all of
QHSSE activity on SKL Yard and BKK office.
4. Report Monthly QHSSE Statistics to Central Asia Region QHSE Manager
on monthly basis.
5. Conduct the QHSSE Audit to Operation of Thailand Unit and capture
gaps or issue to address to concern parties.
6. Conduct Corporate Training Program to employee such as Safe Start,
8 GEMS, Observation Card, BBS Card.
7. Use 10 Root Causes Analysis Technique for incident investigation,
8. Conduct Monthly QHSSE Management Meeting and report HSE
monthly issue including the way to improve.
9. Maintain or revised up to date of QHSE procedure to matching to
Weatherford Operation.
10. Promote and conduct the QHSSE recognition award to employees
who present the best practices by Monthly, Quarterly and Yearly.
11. Meeting and be representative of Weatherford in QHSE audit by
clients.
12. To attend the Central Asia Region training courses and implement to
Thailand Operation and make sure all compliance with corporate.
13. Compliance with Government Environment requirement by limited
waste water drain to community and collect sample water around
SKL yard sent to lab for analysis.
14. Submit all report and document (จป. 3) that required from
Government.
15. Perform role & responsibility of Radiation Safety Officer (RSO) as per
requirement from Thailand OAP.
(2005 – 2006)
SAFETY OFFICER
THAINIPPON STEEL ENGINEERING & CONSTRUCTION
1. Create the Annual HSE plan in order to roll out to implement,
monitoring and summary performance across project responsibility.
2. To ensure all of activity follow as HSE plan requirement. If not address
the issue to concern department to have corrective action.
3. Participate audit and inspection with client HSE representative to
make sure IFO and all activity were complying with company
requirement.
4. Conduct the morning toolbox meeting with worker before start work.
5. Conduct the Safety Training as per Program provided by HSE Plan to
employees or contractors.
6. Conduct incident investigation to find out root cause by using
standard root cause analysis.
7. Maintain the Safety Training Observation Program (STOP Card system)
including implement, analysis data and report out to TNS
management team.

3. 8. Maintain and Implement the Permit to Work System in work area for
example hot Work, Confined Space, and Radioactive using job.
9. Keep record, analysis of statistic and presenting to client by weekly
and monthly.
10. Corporate and working with Client's HSE Officer in case of non-routine
job such as Heavy lifting, Load out, Radiation test, working at high,
Confined Space etc in order to make sure all comply with client
requirement.
11. Conducted an Emergency Drill such as Fire Fighting, First Aid,
Radiation Source Leak, Waste Transfer, Liquid Spill or Release.
(2003 – 2005)
EHS OFFICER
NAKHORNTHAI STRIP MILL
1. Created the EHS Annual Plan and roll out to implement.
2. Conduct the Safety Training to employee and contractor worker.
3. Conducted EHS Workplace Audit with Subcontractor Safety Officer to
find out unsafe condition and come up with the corrective action.
4. Acting on Team leader of Incident / Accident investigation conduct.
5. Advice and Implement Permit to Work System including JSA on high
risk activity.
6. Inspection and maintenance Fire Preventive System by refer to PM
schedule.
7. Survey and monitor of Radioactive Sources Material in order to
comply with safe working rule and government requirement.
8. Determined all proper PPE specification and Standard in job or
activity
9. Coordinate with consultant to make sure Environment Impact
Assessment (EIA) is complying with requirements.
10. Created HSE report and submit to Government as per required.
EDUCATION/TRAINING
BACHELOR OF DEGREE
SANITARY SCIENCE –KHON KAEN UNIVERSITY (1994-1998)
OCCUPATIONAL HEALTH & SAFETY – SUKHOTHAI THAMMATIRAT
(PRESENT)
SAFETY OFFICER PROFESSIONAL TRAINING
REFER TO : MINISTERIAL REGULATION ON THE PRESCRIBING OF STANDARD FOR
ADMINISTRATION AND MANAGEMENT OF OCCUPATIONAL SAFETY, HEALTH AND
ENVIRONMENT B.E. 2549 (A.D.2006)
RADIOACTIVE SAFETY OFFICER
SUKHOTHAI THAMMATHIRAT OPEN UNIVERSITY
SUCCESS/AWARDS
2012 - CHEVRON THAILAND PRESIDENT AWARD – PAILIN 21 SUBSEA
PROJECT.
2013 - ACHIEVED 90 DAYS PLAN FOR NEW JACK UP RIG (SIAM DRILLER).
2014 - COMPLETED DRILLING SECONDEE PROGRAM.
2015 - 1 YEAR INCIDENT FREE OPERATION ON THAI RIG T-11.