COSL - Key Persons


Chiu Lai Kuen

Job Titles:
  • Susanna Independent Non - Executive Director
Ms. Chiu Lai Kuen, Susanna, Hong Kong, China, born in 1960, MH, JP. Ms. Chiu graduated from the University of Sheffield (United Kingdom) with First-Class Honours in Economics, and obtained an EMBA degree in business administration from the Chinese University of Hong Kong. Ms. Chiu is a Hong Kong certified public accountant, a Chinese certified public accountant, a qualified Chartered Accountant from England and a Certified Information System Auditor. She is a current member of the Chinese People's Political Consultative Conference (CPPCC) of Shanghai, an expert on government accounting standards at the Ministry of Finance, a director of the China Overseas Friendship Association, an executive member of the Guangdong Women's Federation, and current Council Treasurer of the Education University of Hong Kong. Ms. Chiu served as the president of the Information Systems Audit and Control Association (China Hong Kong Chapter) from 2001 to 2006. She served as the President of the Hong Kong Institute of Certified Public Accountants in 2013. She has been a member of Women's Commission under the Hong Kong Government since January 2017. She has also served as a member of the Equal Opportunities Commission and the Energy Advisory Committee respectively from 2009 to 2018.Ms. Chiu has served as an executive director of Bonjour Holdings Limited since December 2020. From 2006 to 2019, she successively served as Senior Vice President, Eastern China Chief Representative, and Consultant under the Fung Group (a Hong Kong listed company). From 2000 to 2005, she served as the Chief Operating Officer of DVN (Holdings) Limited (currently known as Frontier Services Group Limited, stock code: 0500), a company listed on the Hong Kong Stock Exchange. Before 2000, she served as senior project manager (Greater China) of Caltex Hong Kong Ltd. Ms. Chiu served as an independent nonexecutive director of Huijing Holdings Company Limited (stock code: 9968), Huali University Group Limited (stock code: 1756) and Kato (Hong Kong) Holdings Limited (stock code: 2189), which are listed on the Hong Kong Stock Exchange. She also served as an independent non-executive director of Songz Automobile Air Conditioning Co., Ltd. (stock code: 002454), a Shenzhen A-share listed company. Since 2018, she has served as an independent non-executive director of Nanyang Commercial Bank Limited.Ms. Chiu was awarded the Medal of Honour by the Hong Kong Government in 2013, the "Outstanding Women Professionals" Award in 2014, the "Distinguished Alumni" Award from the University of Sheffield (United Kingdom), and the "Outstanding Business Woman" by Hong Kong Commercial Daily in 2017. Ms. Chiu was awarded the "Justice of Peace" by the Hong Kong Government in 2017 and the "Justice of Peace NT" in 2018.

Kwok Lam Kwong

Job Titles:
  • Larry Independent Non - Executive Director
Mr. Kwok Lam Kwong, Larry, Hong Kong, China, born in 1955, SBS, BBS, JP, graduated from the University of Sydney, Australia with double bachelor's degrees in economics and laws respectively as well as a master's degree in laws. He also obtained the Advanced Management Program diploma from the Harvard Business School. Mr. Kwok is currently qualified to practise as a solicitor in Hong Kong and a partner of Kwok Yih & Chan. He is also admitted as a solicitor in Australia, the United Kingdom and Singapore. In addition, he is qualified as a Chartered Accountant in the United Kingdom and an Accredited Accountant in Australia and Hong Kong. Mr. Kwok has worked in international law firms in the United States, the United Kingdom and Australia, and served as the managing partner of Greater China for a total of 15 years. Mr. Kwok served as Managing Partner of King & Wood Mallesons (Asia Strategy & Markets) from 2012 to 2014. Since 2014, Mr. Kwok served as a partner of Kwok Yih & Chan. Since December 1994, Mr. Kwok has been an independent non-executive director (re-designated as a non-executive director in 2005) of First Shanghai Investments Limited and served as an independent non-executive director of Shenwan Hongyuan (H.K.) Limited since March 1995. Mr. Kwok has been an independent non-executive director of Starlite Holdings Limited and Café de Coral Holdings Limited since July 2004. From February 2018, he serves as an independent non-executive director of AAC Technologies Holdings Inc. Mr. Kwok is also an independent non-executive director of CMB Wing Lung Bank Limited, a private company in Hong Kong. Mr. Kwok has served regularly on Government boards and committees and is currently the vice chairman of Heep Hong Society, a non-profit organization in Hong Kong. He is also the chairman of the Appeal Tribunal Panel, Buildings Ordinance (Chapter 123) and an arbitrator of the Shenzhen Court of International Arbitration.

Mr. Cai Xiaoyu


Mr. Cheng Xinsheng

Job Titles:
  • Chairman of the Supervisory Committee
  • Independent Supervisor
Mr. Cheng Xinsheng, Chinese, born in 1963, an Independent Supervisor of COSL. Mr. Cheng obtained his Bachelor degree and Master degree from the School of Economics of Nankai University and Doctoral degree from Tianjin University of Finance and Economics in Management, and he holds the independent director qualification of China. Mr. Cheng was a lecturer and an associate professor of the Accounting Department of Nankai University in March 1993, and passed the PRC Certified Public Accountants examination in 1994 and became a member of The Chinese Institute of Certified Public Accountants. He promoted to the Head of the Audit Teaching and Research Offices of the Accounting Department of Nankai University from September 1995 to August 2001. He engaged in the research on corporate governance when he was stationing in the post-doctoral business administration offices of Nankai University from September 2001. Since September 2002, Mr. Cheng has been acting as the Head of Corporate Governance Evaluation Study Offices of the Research Institute of China Corporate Governance of Nankai University. Since December 2005, Mr. Cheng has been acting as a professor and a doctoral supervisor of Nankai University. Mr. Cheng was an Independent Non-Executive Director of Offshore Oil Engineering Co, Ltd., a company listed on the Shanghai Stock Exchange. Mr. Cheng is an Independent Supervisor of COSL since June 2015. Chairman of Supervisory Committee

Mr. Dou Rukuan


Mr. Liu Qiudong

Job Titles:
  • Non - Executive Director
Mr. Liu Qiudong was born in 1972 as Chinese nationality. He has been awarded the title of Senior Accountant. He also is a Fellow of the Association of Chartered Certified Accountants (ACCA), a Fellow of Certified Public Accountant Australia (FCPA Australia), a member of the Association of International Accountants (AIA). He obtains a certificate of leading accounting talent issued by the National Government Offices Administration and had been appointed as a member of the Accounting Standards Advisory Committee of the Ministry of Finance. Mr. Liu graduated from Financial Institute of Shandong Yantai with a major in Foreign-related Accounting in July 1994, a dual master's degree in Commerce and MBA from Deakin University in Australia in December 2005. From August 1995 to May 1997, he served as an accountant of the Planning and Financial Department of Shandong Fisheries Enterprise Group; from June 1997 to April 2000, he served as a financial manager of SHANSHUI Enterprise Pty Ltd; from May 2000 to December 2003, he served as a financial manager of Aqua Star Pty Ltd. Mr. Liu previously served as an overseas business senior supervisor of the International Business and Marketing Department of COSL from June 2006 to July 2007, a manager of information disclosure of the Office of the Secretary to the Board of COSL from August 2007 to October 2013, and an accounting manager of the Finance Department of COSL from November 2013 to April 2017. He served as a Chief of the report analysis division of the Financial and Assets Department of CNOOC from May 2017 to October 2021, and a vice general manager of the Financial and Assets department of CNOOC from November 2021 to October 2022. He has served as a vice general manager of the Financial and Treasury Department of CNOOC since November 2022.

Mr. Lu Tao

Job Titles:
  • President and Executive Director and Deputy Party Secretary
Mr. Lu Tao, Chinese, born in 1969, Vice President and General Legal Counsel of COSL, professorlevel senior engineer. He graduated from the University of Electronic Science and Technology of China with major in electromagnetic field and microwave technology and a master's degree in 1993, and later was granted a doctorate degree in measurement technology and instrumentation from the University of Electronic Science and Technology of China. From April 1993 to July 1993, Mr. Lu served as research engineer at the Research Institute of China National Offshore Oil Logging Corporation, and from July 1993 to October 1993, he had an intern at Xinjiang Branch of China National Offshore Oil Logging Corporation. From October 1993 to January 2002, he served as research engineer at the Research Institute of China National Offshore Oil Logging Corporation. From January 2002 to September 2002, he served as Vice Chief Engineer of the Technology Development Center of COSL Logging Division. From September 2002 to December 2004, he served as the Vice Chief Engineer of the Electromechanical Equipment Institute of COSL R&D Center. From December 2004 to April 2006, he served as the Director of the Electromechanical Equipment Institute of the COSL Technical Center. From April 2006 to January 2010, he served as the Chief Engineer of the COSL Technical Center. From January 2010 to May 2010, he served as Deputy Director of COSL Technical Center. From June 2010 to June 2016, he served as Vice General Manager of COSL Well Tech Division. From June 2016 to November 2017, he served as General Manager of COSL Well Tech Division. From November 2017 to August 2019, he served as General Manager and Deputy Party Secretary of COSL Well Tech Division. From August 2019 to November 2019, he served as General Manager and Deputy Party Secretary (responsible for the work of the Party Committee) of COSL Well Tech Division. From November 2019 to August 2020, he served as General Manager and Party Secretary of COSL Well Tech Division. From July 2020 to July 2021, he served as Vice President and concurrently served as General Legal Counsel of COSL. From July 2020 to April 2023, he served as Vice President of COSL. Since May 2023, he served as President and Deputy Party Secretary of COSL. since August 2023, he served as Executive Director of COSL.

Mr. Ma Xiuen

Job Titles:
  • Employee Representative Supervisor
Mr. Ma Xiuen, Chinese, born in 1975, is an administrative officer. He graduated from China University of Petroleum (East China) with a Bachelor degree in July 1999. From July 1999 to December 2001, he served as an assistant engineer of well testing in CNOOC Technical Services Limited. He served as the external affairs and the deputy secretary of the youth league committee of Tianjin Branch of China Oilfield Services Limited from December 2001 to December 2002. He also served as the Secretary and Secretary of Class II (officer in charge) of the Company from December 2002 to April 2006. He served as the manager of the business services department, manager of the administration department, a general manager assistant and manager of the administration department of Tianjin Branch of the Company from April 2006 to May 2008. From May 2008 to July 2010, he served as the manager of the human resources department of Production Optimization Division of the Company. He served as the Director of Party and Mass Affairs Office and Deputy Director of the Party Committee Office of the administration department of the Company from July 2010 to February 2017. He also served as Secretary to the Disciplinary Committee, Deputy Secretary to the Party Committee and the Deputy General Manager of the Shipping Division of the Company from February 2017 to June 2021. He has been the manager of human resources department of the Company since June 2021. Since August 2022, he has served as the Employee Representative Supervisor of COSL.

Mr. Magnar Fagerbakke


Mr. Qi Yongsheng


Mr. Shang Jie

Job Titles:
  • Chief Engineer
Mr. Shang Jie, Chinese, born in March 1977, Chief Engineer of COSL, is a professor-level senior engineer. He graduated from Harbin Institute of Technology with major in Automobile Design and Manufacturing and obtained a Bachelor's degree in July 1999. He graduated from Tsinghua University with major in Instrument Science and Technology and obtained a Master's degree in July 2002 and graduated from Tsinghua University with major in Instrument Science and Technology and obtained a Doctoral degree in July 2005, respectively. From July 2005 to August 2006, he worked as an editor of the Chinese government's official website in Xinhuanet Co., Ltd. From January 2007 to November 2007, he worked as an intern in the Electromechanical Equipment Research Institute of the COSL Technical Center. From November 2007 to December 2009, he served as an electronic engineer in the Electromechanical Equipment Research Institute of COSL Technical Center. From December 2009 to December 2012, he served as a senior electronic engineer of Electromechanical Equipment Research Institute of COSL Technical Center. From December 2012 to June 2014, he served as a senior electronic engineer and director of the Oriented Engineering Research Institute of Oilfield Technology Institute of COSL Well Tech Division. From June 2014 to November 2014, he served as a senior electronic engineer and director of the Oriented Engineering Research Institute of Oilfield Technology Institute of COSL Well Tech Division. From November 2014 to July 2016, he served as the vice dean of Oilfield Technology Institute of COSL Well Tech Division. From July 2016 to August 2020, he served as the dean of Oilfield Technology Institute of COSL Well Tech Division. From August 2020 to January 2021, he served as the dean of Oilfield Technology Institute of COSL Well Tech Division (presided over the daily management of COSL Well Tech Division). He has been served as Party Secretary and General Manager of COSL Well Tech Division since January 2021. He has been the Chief Engineer of COSL since December 2022.

Mr. Wang Sheng


Mr. Wei Xi

Job Titles:
  • Marketing Contact
  • Marketing Manager of WellTech

Mr. Xia Yu

Job Titles:
  • Marketing Contact
  • Marketing Manager of Geophysical

Mr. Xiong Min

Job Titles:
  • Executive Director, Deputy Party Secretary
Mr. Xiong Min, Chinese, born in 1976, Executive Director and Deputy Party Secretary of COSL, is a senior engineer. Mr. Xiong graduated from China University of Petroleum in 1996 with major in oil engineering and obtained a Bachelor's degree, and then obtained a Master degree from the University of Science and Technology Beijing with major in vehicle engineering (mining machine). From July 1996 to January 1998, he was a junior engineer at Huanxiling Oil Production Plant in Liaohe Oilfield. From January 1998 to October 2001, he served as a junior engineer at Research Institute of Drilling and Production Technology of Liaohe Oilfield. From October 2001 to March 2004, he studied for Master's degree in University of Science and Technology Beijing with major in vehicle engineering (mining machinery). From March 2004 to April 2005, he served as Sales Engineer at Lincom Pty Ltd. From April 2005 to April 2007, he was the project manager of Tanggu Base, Cementing Center, COSL Well Tech Division. From April 2007 to February 2012, he served as Technology Supervisor and Manager of Cementing Operation Company, Tanggu Base, COSL Oilfield Chemicals Division. From February 2012 to November 2014, he was Vice Manager and Manager of Indonesia Base of COSL Oilfield Chemicals Division. From November 2014 to August 2016, he was Manager of Indonesia Operation Company of COSL Oilfield Chemicals Division. From August 2016 to September 2017, he served as Vice General Manager of COSL Oilfield Chemicals Division. From September 2017 to August 2021, he served as General Manager of Malaysian joint venture of COSL. From January 2019 to August 2021, he concurrently served as General Manager of COSL Drilling Pan Pacific (Malaysia) Company (CDPPM). From December 2020 to July 2022, he served as Vice President of COSL. He has also concurrently served as General Legal Counsel of COSL from July 2021 to November 2022. He has concurrently served as Chief Compliance Officer of COSL from May 2022 to November 2022 and served as Deputy Party Secretary of COSL since July 2022. He has served as an Executive Director of COSL since December 2022.

Mr. Xu Fengyang


Mr. Xu Yingbo

Job Titles:
  • Secretary of the Discipline Inspection Commission
Mr. Xu Yingbo, Chinese, born in 1973, Team Leader of the Discipline Inspection Commission, senior engineer. He graduated from the China University of Petroleum (East China) with major in production process automation and obtained a Bachelor's degree in engineering, and later was granted a master's degree in project management from the China University of Petroleum (Beijing). From July 1997 to November 2002, Mr. Xu served as instrument engineer, instrument chief operator, and equipment supervisor at the South China Sea Western Petroleum Production Company. From November 2002 to January 2007, he served as equipment supervisor and FPSO director assistant of CNOOC Energy Development Oil Production Service Company. From January 2007 to July 2007, he served as FPSO Director of CNOOC Shenzhen Branch Xijiang 23-1 Oilfield. From July 2007 to April 2009, he served as Director of of CNOOC Shenzhen Branch Xijiang 23-1 Oilfield. From April 2009 to December 2010, he served as Production Director of CNOOC Shenzhen Branch Self-operated Oilfield; From December 2010 to January 2013, he served as Production Manager of CNOOC Shenzhen Branch Xijiang Oilfield Operation Area. From January 2013 to December 2014, he served as the Vice Manager of CNOOC Shenzhen Branch Xijiang Oilfield Operation Area. From December 2014 to October 2016, he served as Vice Manager, Deputy Party Secretary and Secretary of the Disciplinary Committee of CNOOC Shenzhen Branch Xijiang Oilfield Operation Area. From October 2016 to September 2017, he served as Manager of the Supervision Department of the Eastern South China Sea Petroleum Administration. From September 2017 to December 2018, he served as Deputy Leader of the Discipline Inspection Group of the Party Team in CNOOC Shenzhen branch. From December 2018 to February 2020, he served as Deputy Leader of the Party Inspection Team of CNOOC. From February 2020 to April 2023, Mr. Xu has served as Team Leader of the Discipline Inspection Commission. Since April 2023, Mr.Xu as Secretary of the Discipline Inspection Commission of COSL.

Mr. Yang Dexing - VP

Job Titles:
  • Vice President
Mr. Yang Dexing, Chinese, born in 1980, Vice President and Safety Director of COSL, senior engineer. Mr. Yang graduated from China University of Petroleum (East China) with a major in oil engineering and obtained a Bachelor's degree in 2003, and then obtained a Master's degree from China University of Petroleum (East China) with major in oil and gas field Development, and a Master's degree from University of Stavanger in Norway with major in industrial economics. From July 2003 to November 2007, he served as learning foreman and drilling team leader of Bohai 10 in Tanggu Base of COSL Drilling Division. From November 2007 to September 2008, he served as Senior Team Leader of HYSY 931 at Tanggu Operation Company of COSL Drilling Division. From September 2008 to July 2012, he served as the Senior Team Leader and Platform Manager of Bohai 4 at Tanggu Operation Company of COSL Drilling Division. From July 2012 to August 2013, he was a off-production training student for the Master of industrial economics at University of Stavanger in Norway. From August 2012 to July 2014, he obtained a Master's degree in industrial economics from University of Stavanger. From August 2013 to May 2014, he served as COSLGIFT Platform Manager at Tanggu Operation Company of COSL Drilling Division. From May 2014 to October 2014, he was Manager of Human Resources Department of COSL Drilling Division. From October 2014 to February 2016, he was Manager of Operational Safety and Environmental Protection Department of COSL Drilling Division. From February 2016 to April 2017, he served as President of PT. COSL DRILLING INDO of COSL Drilling Division. From April 2017 to June 2018, he served as Vice Manager of the Quality and Safety Department of COSL. Since June 2018, he was Manager of the Quality and Safety Department of COSL. Since December 2020, he served as Vice President of COSL. Since February 2021, he concurrently served as Safety Director of COSL.

Mr. Yao Xin

Job Titles:
  • Independent Non - Executive Director
Mr. Yao Xin, Chinese, was born in 1979. Mr. Yao successively obtained a bachelor's degree in engineering from Tsinghua University and a doctorate degree in economics from Xiamen University. He joined the School of Economics of Xiamen University as an assistant professor after obtaining his PhD in 2010 and was promoted to associate professor in 2012. He was selected into Outstanding Young Scientific Research Talent Cultivation Program in Fujian Colleges and Universities in 2013, awarded as Fujian Province Youth Top-Notch Talent in 2014, became a doctoral tutor in 2015, and promoted to professor in 2017. He was a visiting scholar at Industrial Engineering and Logistics Management Department of the Hong Kong University of Science and Technology during the period from 2014 to 2016. He has served as the director of China Centre for Energy Economics Research at Xiamen University since 2022. Mr. Yao has been devoted to the research in fields such as energy and environmental economy, green finance and sustainable supply chain for many years, and has undertaken a number of relevant national important research projects. The research results are influential and have won multiple awards above provincial and ministerial level. He is awarded the Most Cited Chinese Researchers in applied economics by Elsevier in 2021.

Mr. Zhang Fangyi

Job Titles:
  • Marketing Contacts
  • Marketing Manager of Drilling

Mr. Zhang Man


Mr. Zhang Shaoying


Mr. Zhao Feng

Job Titles:
  • Chairman of the Supervisory Committee
Mr. Zhao Feng, Chinese, born in 1978, is the Chairman of the Supervisory Committee of COSL and a senior auditor and an International Certified Internal Auditor. He graduated from the Department of Economics of Xiangtan Institute of Technology with a major in accounting and obtained a bachelor's degree in management in June 2001, and obtained a master's degree from Wuhan University with a major in accounting in June 2008. From September 2008 to December 2009, he studied at the Hong Kong Polytechnic University as a postgraduate and obtained master's degrees in accountancy and science. From June 2001 to July 2008, Mr. Zhao successively served as staff member and senior staff member in the Economic and Trade Audit Department of the National Audit Office of the People's Republic of China ("CNAO") Wuhan Regional Office. From July 2008 to May 2012, he served as principal staff member in the Enterprise Audit Department of CNAO Wuhan Regional Office. From May 2012 to June 2016, he served as a senior supervisor of the fifth department of the Audit Center of China National Offshore Oil Corporation. From June 2016 to July 2019, he successively served as the deputy manager and manager of the third department of the Audit Center of China National Offshore Oil Corporation. From July 2019 to April 2022, he served as the manager of the third department of the Northern Audit Center of China National Offshore Oil Corporation. From April 2022 to September 2022, he served as the director of the Northern Audit Center of China National Offshore Oil Corporation. Since September 2022, he has been serving as the deputy general manager of the Audit Department of China National Offshore Oil Corporation (and CNOOC Limited) and holding position as the director of the Northern Audit Center of China National Offshore Oil Corporation concurrently. He has served as a Supervisor and the Chairman of the Supervisory Committee of COSL since March 2024.

Mr. Zhao Shunqiang - CEO, Chairman

Job Titles:
  • Chairman
  • Chief Executive Officer
Mr. Zhao Shunqiang, Chinese, born in 1968, an Executive Director and President of COSL, senior engineer. He graduated from China University of Petroleum (East China) with bachelor degree of drilling engineering in 1990 and was granted EMBA of CEIBS in 2008. From July 1990 to November 2001, Mr. Zhao successively served as drilling foreman, staff member of operating department and senior team leader of China Offshore Oil Northern Drilling Company; from November 2001 to October 2002, he successively served as Vice President of China Offshore Oil International Engineering Company and manager of Bohai No. 9 Rig of China Offshore Oil Northern Drilling Company; from October 2002 to August 2004, he served as Vice GM of Tianjin Branch of COSL; from August 2004 to November 2004, he served as Director of Drilling Technology Institute (Tanggu) of COSL IPM Division; from November 2004 to December 2005, he served as GM of Tianjin Branch of COSL; from December 2005 to April 2012, he served as GM of the Production Optimization Division of COSL, while he also served as the Dean of Production Optimization Research Institute from January 2011 to April 2012; from April 2012 to March 2018, he served as the Vice GM of CNOOC International Limited; from March 2018 to August 2020, he served as President of CNOOC Uganda Limited; since August 2020, he has served as President of COSL. Since October 2020, he has served as an Executive Director of COSL. Since April 2021, Mr. Zhao has served as Chairman, CEO, Executive Director of COSL. Mr. Zhao has over 30 years of experience in the oil and natural gas industry.

Mr.Fang Guoyin


Mr.Jin Qinyong


Mr.Wang Xiaohua


Ms. Chong Xiaojie - CFO

Job Titles:
  • CFO
Ms. Chong Xiaojie, Chinese, born in 1977, a senior accountant. She graduated from Shaanxi Institute of Economic Management in 1998, majoring in international trade, and obtained a master's degree in business administration from Central University of Finance and Economics in 2009. Ms. Chong served as a cashier and asset manager of the planning and finance department of Logging Company from July 1998 to December 2001. From December 2001 to December 2002, Ms. Chong worked in the finance department of International Engineering Company of COSL for budget management. From December 2002 to August 2007, she successively worked in the finance department of COSL for external financial reporting and disclosure as well as overseas financial planning. From August 2007 to August 2010, Ms. Chong served as General Manager of the planning and finance department of the COSL Technical Center. From August 2010 to February 2012, she served as General Manager of the planning and finance department of the Well Tech of COSL. From February 2012 to January 2016, she served as Planning and Budget Manager of the planning and finance department of COSL. From January 2016 to December 2017, Ms. Chong served as Vice General Manager of Oilfield Chemicals Division of COSL. From December 2017 to July 2019, she served as General Manager of the planning and finance department of COSL . Since July 2019, Ms. Chong has served as General Manager of the planning and finance department of COSL. Ms. Chong was appointed as the CFO of COSL on May 2021.

Sun Weizhou

Job Titles:
  • Vice President, General Legal Counsel, Chief Compliance Officer and Secretary of the Board
Sun Weizhou, Chinese, born in November 1971, Vice President, General Legal Counsel and Chief Compliance Officer, Secretary of the Board (Joint Company Secretary) of COSL, is an engineer. From 1988 to 2014, he successively studied in petroleum geology at North China Petroleum Technical School, English at Tianjin Foreign Studies University, business administration in the School of Continuing Education at Yangtze University and business administration at China Europe International Business School. He obtained a bachelor's degree and a master's degree in business administration in 2008 and 2014, respectively. Mr. Sun obtained a registered qualification certificate of PRC enterprise legal adviser in October 2008. Mr. Sun joined Bohai Petroleum Geological Services Company in July 1992, responsible for mudlogging. From June 1995 to December 2001, he successively served as a mud logger, data engineer and unit manager of China France Bohai Geoservices. From December 2001 to December 2002, he served as a foreign affairs officer of China Oilfield Services Limited. From December 2002 to April 2006, he successively served as the secretary of the Administration Department, the person in charge of the business unit of Kazakhstan Office, the supervisor of the business unit of Malaysia Office of COSL. From April 2006 to December 2007, he served as the contract and risk control manager of the Legal Affairs Department of COSL. From December 2007 to November 2009, he served as the manager of contract review/legal affairs of joint venture of the Legal Affairs Department of COSL. From November 2009 to November 2011, he served as the general manager of the Legal Affairs Department of COSL. From November 2011 to January 2015, he served as the general manager of the Strategic Studies and Development Department of COSL. From January 2015 to December 2021, he served as the deputy general manager of COSL-Expro Testing Services (Tianjin) Company Ltd.From December 2021 to Janunary 2023, he has served as the Party Secretary and the general manager of the Production Optimization Division of COSL. He has been the Secretary of the Board (Joint Company Secretary) of COSL since January 2022. He has been the General Legal Counsel and Chief Compliance Officer of COSL since November 2022 and has been the Vice President of COSL since December 2022.