Management Team

Mr. Lee Hoong Leong is the Executive Director and Group Chief Operating Officer of the Group. He was appointed to the board on 9 August 2012.

Mr. Lee brings more than 30 years of experience in the semiconductor packaging and test business. Prior to joining Unisem, Mr. Lee was the President of UTAC, Advanced Wafer Level Interconnects. During his years with UTAC between2001 to 2011, he held various positions as Vice President, Quality and Research & Development, Vice President of UTAC Operations, and President of UTAC Singapore operations and President of UTAC Shanghai operations concurrently.

Mr. Lee began his career at Texas Instruments, Singapore in 1980 as an automation engineer. He held various managerial and engineering positions in Texas Instruments Singapore from 1980 to 1986. Mr. Lee subsequently joined National Semiconductor, Singapore in 1986 and held various positions in research & development, purchasing & logistics and finally as operations manager.

Mr. Lee holds a Bachelor’s degree in mechanical engineering from the University of Singapore.

Mr. Tan Kim Heng is the senior vice president of technology and materials for Unisem Group, a position which he has held since 2011. Mr. Tan joined Unisem in 2003 as the vice president of Engineering. In 2005, he seconded to China to start up Unisem Chengdu factory and served as President/COO until 2011.

Mr. Tan has over 33 years experience in the semiconductor assembly and test industry. He began his career at Motorola Malaysia and worked with various Motorola Semiconductor Sector entities in Malaysia, Hong Kong, Korea, Tianjin (the People’s Republic of China) and Sendai (Japan) serving as Senior Member of Technical Staff responsible for the engineering and equipment function. Leading the Six Sigma program for Motorola Malaysia, Mr. Tan was certified Six Sigma Black Belt and was admitted to the Motorola Corporate Science Advisory Board (SABA) in 1999. Prior to joining Unisem, Mr. Tan was a Vice President, Engineering of ST Assembly Test Services Ltd. in Singapore.

Mr. Tan holds a Bachelor of Engineering Degree (2nd Class Upper) in mechanical engineering from University of Malaya.

Mr. Tham Eng Huak is the Vice President, Group Finance since 1 October 2013. He carries with him over 27 year experience in the semiconductor industry assembly and test industry. Mr. Tham joined the company in 1991 and is responsible for the group financial and accounting reporting and activities. Prior to joining the Company, he was with Carsem (M) Sdn. Bhd. for 6 years from 1986 to 1991.

He holds a Diploma in Accounting and a Diploma in Costing from London Chamber of Commerce and Industry.

Mr. Ho Choon Seng is senior vice president, Chief Operating Officer of the Unisem Ipoh operations, a position which he has held since 2007. He carries with him over 35 years experience in the semiconductor assembly and test industry. Mr. Ho joined the Company in 1992 as an engineering manager and was promoted to Vice President in 2001, responsible for all manufacturing operations of the Company. Prior to joining the Company, he was with Motorola (M) Sdn Bhd as engineering for 15 years from 1976 to 1991 with his last position as engineering manager.

Mr. Ho holds a Diploma in Mechanical Engineering from the Singapore Polytechnic, a Diploma in Management from the Malaysian Institute of Management and a Master of Business Administration from the University of East Asia, Macau.

Mr. Quek Suan Hong is the Chief Operation Officer of Unisem Chengdu Operations, a position which he has held since 2011. He has over 38 years experience in the semiconductor assembly and test industry. Mr. Quek joined Unisem Chengdu in Nov 2005 as Senior Operations Manager and was promoted to plant COO in 2011. Prior to joining Unisem, he was with Motorola (M) Sdn Bhd from 1974 to 2002 where he held various positions from production supervisor to Senior Operations Manager.

Mr. Quek holds a Diploma in Automotive Engineering in Malaysia and passed the certification from Institute of the Motor industry (London).

Mr. Michael H. McKerreghan is the President of PT Unisem Batam operations, a position which he held since October 2016. Mr. McKerreghan has more than 40 years experience in the semiconductor industry. He was the Chief Operating Officer and Chief Technology Officer of Advanced Interconnect Technologies Limited group of companies (now known as Unisem (Mauritius) Holdings Limited since August 2007) from 1990 to March 2014. He has been involved in the technology aspect of the business of since 1990 when he joined PT Astra Microtronics Technologies (“Astra”), a division of Astra International. Prior to joining Astra, Mr. McKerreghan owned and operated a US$ 5.0 million to US$10.0 million business named ETC Flextronics, Inc (now known as ASE Test Limited) from 1987 to 1989. Mr. McKerreghan held administrative positions with Environmental Processing, Inc. from 1983 to 1986, with Dynetics Corporation from 1980 to 1983 and with Hitachi Semiconductor (America), Inc. from 1978 to 1980. Prior to that, Mr. McKerreghan held technical positions with Mostek, Inc. from 1972 to 1978 and with Texas Instruments Incorporated from 1964 to 1972.

Mr. McKerreghan attended Stephen F. Austin State College in 1964 and East Texas State College in 1965.

Mr. Chai Chan Wah is the General Manager of UAT, a position which he has held since 2014. Mr. Chai joined Unisem in 1993 as Engineering Section Head and held the position of Vice President of Corporate Technology Development prior to joining UAT. He began his career as process engineer in Carsem in 1988 to 1993. Mr. Chai brings with him more than 25 years of experience in semiconductor assembly & test industry.

Mr. Chai holds a Bachelor of Science Degree (2^nd Class Upper) in Physics from National University of Malaysia.